Release Notes for Cisco Catalyst 9500 Series Switches, Cisco IOS XE Gibraltar 16.11.x
Introduction
Cisco Catalyst 9500 Series Switches and Cisco Catalyst 9500 Series Switches - High Performance are Cisco's lead, fixed core and aggregation enterprise switching platforms. They have been purpose-built to address emerging trends of Security, IoT, Mobility, and Cloud.
They deliver complete convergence in terms of ASIC architecture with Unified Access Data Plane (UADP) 2.0 on Cisco Catalyst 9500 Series Switches and UADP 3.0 on Cisco Catalyst 9500 Series Switches - High Performance. The platform runs an Open Cisco IOS XE that supports model driven programmability, has the capacity to host containers, and run 3rd party applications and scripts natively within the switch (by virtue of x86 CPU architecture, local storage, and a higher memory footprint). This series forms the foundational building block for SD-Access, which is Cisco’s lead enterprise architecture.
Note |
With the introduction of the High Performance models in the series, there may be differences in the supported and unsupported features, limitations, and caveats that apply to the Cisco Catalyst 9500 Series Switches and Cisco Catalyst 9500 Series Switches - High Performance models. Throughout this release note document, any such differences are expressly called out. If they are not, the information applies to all models in the series. |
Attention |
Important Upgrade Prerequisite for Cisco Catalyst 9500 Series Switches - High Performance Starting with Cisco IOS XE Gibraltar 16.11.1, the default interface for all High Performance models in the series changes from Layer 3 to Layer 2. To ensure that this change does not erase existing configuration, complete the task described here: Changing the Default Interface and Upgrading or Downgrading in Install Mode (for Cisco Catalyst 9500 Series Switches - High Performance Only), before you upgrade to or downgrade. |
Whats New in Cisco IOS XE Gibraltar 16.11.1
Hardware Features in Cisco IOS XE Gibraltar 16.11.1
-
Hardware Features Introduced on Cisco Catalyst 9500 Series Switches
-
Hardware Features Introduced on Cisco Catalyst 9500 Series Switches-High Performance
Hardware Features Introduced on Cisco Catalyst 9500 Series Switches
(C9500-12Q, C9500-16X, C9500-24Q, C9500-40X)
Feature Name |
Description and Documentation Link |
||
---|---|---|---|
Cisco 40GBASE QSFP-40G Modules |
Supported transceiver module product number: QSFP-40/100-SRBD
For information about the module, see the Cisco 100GBASE QSFP-100G Modules Data Sheet. For information about device compatibility, see the Transceiver Module Group (TMG) Compatibility Matrix. |
||
Cisco 25GBASE SFP28 Modules |
Supported transceiver module product numbers: Cisco SFP-10/25G-LR-S
For information about the module, see the Cisco 25GBASE SFP28 Modules Data Sheet and Cisco 25G Transceivers and Cables Enable 25 Gigabit Ethernet over a Fiber or Copper Cable. For information about device compatibility, see the Transceiver Module Group (TMG) Compatibility Matrix. |
||
Cisco SFP Modules |
Supported transceiver module product numbers:
For information about the module, see the Cisco SFP Modules for Gigabit Ethernet Applications Data Sheet. For information about device compatibility, see the Transceiver Module Group (TMG) Compatibility Matrix. |
Hardware Features Introduced on Cisco Catalyst 9500 Series Switches-High Performance
(C9500-24Y4C, C9500-32C, C9500-32QC, and C9500-48Y4C)
Feature Name |
Description and Documentation Link |
---|---|
Cisco 100GBASE QSFP-100G Module |
For information about the module, see the Cisco 100GBASE QSFP-100G Modules Data Sheet. For information about device compatibility, see the Transceiver Module Group (TMG) Compatibility Matrix. |
Cisco 10GBASE SFP+ modules and Cisco SFP+ active optical cables |
For information about the module, see the Cisco 10GBASE SFP+ Modules Data Sheet. For information about device compatibility, see the Transceiver Module Group (TMG) Compatibility Matrix. |
Cisco 25GBASE SFP28 Modules |
For information about the module, see the Cisco 25GBASE SFP28 Modules Data Sheet and Cisco 25G Transceivers and Cables Enable 25 Gigabit Ethernet over a Fiber or Copper Cable. For information about device compatibility, see the Transceiver Module Group (TMG) Compatibility Matrix. |
Cisco 40GBASE QSFP Modules: Breakout Cables |
For information about the module, and breakout cables see the Cisco 40GBASE QSFP Modules Data Sheet. For information about device compatibility, see the Transceiver Module Group (TMG) Compatibility Matrix. |
Software Features in Cisco IOS XE Gibraltar 16.11.1
-
Software Features Introduced on Cisco Catalyst 9500 Series Switches
-
Software Features Introduced on Cisco Catalyst 9500 Series Switches-High Performance
Software Features Introduced on All Models
Feature Name |
Description, Documentation Link and License Level Information |
---|---|
Cisco StackWise Virtual—Recovery Reload |
Introduces a new default reload action after recovering from a link failure and the option to disable this default. Starting with this release, after recovering from a StackWise Virtual link failure, the failed active switch automatically performs a reload action and restores itself as a standby switch. This is the new default behaviour in the event of a link failure. You can also configure the dual-active recovery-reload-disable command in the stackwise-virtual configuration mode, to retain the switch in recovery mode and prevent the switch from reloading automatically.
See High Availability → Configuring Cisco StackWise Virtual.
(Network Advantage) |
Consent Token for Shell Access |
Authenticates a network administrator’s request to access the system shell. When debugging software issues, a Cisco TAC engineer may have to work with a network administrator to collect debug information or perform live debugging on a production system. This feature provides the network administrator with privileged, restricted, and secure access to the system shell with mutual consent from the network administrator and Cisco TAC.
See System Management → Consent Token.
(Network Essentials and Network Advantage) |
Ingress Replication (IR) for VXLAN BGP EVPN |
Enables forwarding of broadcast, unknown unicast, and multicast (BUM) traffic to the relevant recipients in a network. IR is a unicast approach to handling multi-destination traffic, and involves an ingress device replicating every BUM packet and then sending it as a separate unicast to remote egress devices.
See Layer 2 → Configuring VXLAN BGP EVPN.
(Network Advantage) |
IPv6 Support for Virtual Extensible LAN (VXLAN) Border Gateway Protocol (BGP) Ethernet VPN (EVPN) in Routed Mode |
Introduces IPv6 support for the VXLAN BGP EVPN operation in routed mode. A VXLAN is a network overlay that allows layer 2 segments to be stretched across an IP core. All the benefits of Layer 3 topologies are thereby available with VXLAN. The overlay protocol is VXLAN and BGP uses EVPN as the address family for communicating end host MAC and IP addresses. VXLAN BGP EVPN operates in bridged mode when the hosts are in the same subnet, and in routed mode when the hosts are in different subnets.
See Layer 2 → Configuring VXLAN BGP EVPN.
(Network Advantage) |
Multiprotocol Label Switching (MPLS)
|
See Multiprotocol Label Switching.
(Network Advantage) |
Programmability
|
The following programmability features are introduced in this release:
See Programmability.
(Network Essentials and Network Advantage) |
Smart Licensing: System Messages for an Evaluation License |
Evaluation licenses that are not registered will still expire after the 90-day period, but warning system messages about an evaluation license expiry will now be generated only 275 days after this 90-day window.
See License Levels - Usage Guidelines.
(A license level does not apply) |
New on the Web UI |
|
|
Use the WebUI to:
|
Software Features Introduced on Cisco Catalyst 9500 Series Switches
C9500-12Q, C9500-16X, C9500-24Q, C9500-40X
Feature Name |
Description, Documentation Link and License Level Information |
---|---|
BGP PE-CE support for MPLS Layer 3 VPNs |
Supports BGP as a routing protocol between the provider edge (PE) device and the customer edge (CE) device.
See Configuring MPLS Layer 3 VPN.
(Network Advantage) |
Cisco StackWise Virtual: Support on uplink network modules |
On the C9500-40X and C9500-16X models of the Cisco Catalyst 9500 Series Switches, you can now configure StackWise Virtual links and Dual Active Detection (DAD) links on any of the compatible uplink network modules. For the list of supported network modules, see Network Modules.
See High Availability → Configuring Cisco StackWise Virtual.
(Network Advantage) |
ERSPAN Termination |
Introduces support for encapsulated remote switched port analyzer (ERSPAN) type 3 source feature and the following ERSPAN type 2 and type 3 features:
The header-type 3 , destination , ip dscp , filter mtu , and vrf commands are available for configuration.
See Network Management → Configuring ERSPAN.
(DNA Advantage) |
IPv6: Border Gateway Protocol (BGP) |
IPv6 support is introduced for following BGP features:
See IP Routing.
|
IPv6: IP Service Level Agreements (SLAs) |
IPv6 support is introduced for following IP SLA features:
See Network Management → Configuring Service Level Agreements.
(Network Essentials and Network Advantage) |
IPv6: IPv6 Multicast Virtual Private Network (MVPNv6) |
Enables service providers to use their existing IPv4 backbone to provide multicast-enabled private IPv6 networks to their customers.
See IP Multicast Routing → Configuring Multicast Virtual Private Network
(Network Advantage) |
IPv6: Open Shortest Path First (OSPF) |
IPv6 support is introduced for following OSPF features:
See IP Routing.
(Network Essentials and Network Advantage) |
Password Configuration: Secure Password Migration |
Introduces support for migration of type 0 and type 7 usernames and passwords to type 6. Password protection restricts access to a network or network device. Encrypting passwords provides an additional layer of security, particularly for passwords that cross the network or are stored on a TFTP server. Starting with this release, the switch supports automatic conversion of usernames and passwords with type 0 and type 7 encryption, to type 6 encryption. Type-6 is a strong, reversible 128-bit Advanced Encryption Standard (AES) password encryption. To start using type-6 encryption, you must enable the AES password encryption feature and configure a master encryption key, which is used to encrypt and decrypt passwords.
See Security → Controlling Switch Access with Passwords and Privilege Levels.
(Network Essentials and Network Advantage) |
Software Features Introduced on Cisco Catalyst 9500 Series Switches-High Performance
C9500-24Y4C, C9500-32C, C9500-32QC, and C9500-48Y4C
Feature Name |
Description, Documentation Link and License Level Information |
---|---|
BFD support for PE-CE, PE-P in an MPLS network |
Enables configuration of the BFD protocol between PE-CE (Provider Edge-Customer Edge) and PE-P (Provider Edge- Provider) in an MPLS network.
See IP Routing → Configuring Bidirectional Forwarding Detection.
(Network Advantage) |
Bidirectional Forwarding Detection (BFD):
|
BFD is a detection protocol that is designed to provide fast forwarding path failure detection times for all media types, encapsulations, topologies, and routing protocols. BFD provides faster reconvergence time for BGP after a forwarding path failure. Starting with this release:
See IP Routing.
(Network Essentials and Network Advantage) |
Etherchannel VLAN Based Load Balancing |
Enables you to configure EtherChannel load balancing based on the VLAN IDs of packets. EtherChannels can balance traffic load across links in the channel by reducing part of the binary pattern formed from the addresses or ports in the frame, to a numerical value that selects one of the links in the channel. You can specify one of several different load-balancing modes, which now includes VLAN-based load balancing. The selected mode applies to all EtherChannels configured on the device.
See Layer 2 → Configuring EtherChannels.
(Network Essentials and Network Advantage) |
HSRP V2 - Sub Second Timers |
Enables a set of router interfaces to work together to present the appearance of a single virtual router or default gateway to the hosts on a LAN. You can optionally configure an HSRP authentication string or change the hello-time interval and hold time. Starting from this release, the msec keyword is supported. We recommend that you configure a minimum hello-time value of 250 milliseconds and a minimum hold-time value of 800 milliseconds.
See IP Addressing Services → Configuring HSRP.
(Network Essentials and Network Advantage) |
IPv6: OSPF Limit on Number of Redistributed Routes |
Enables you to configure a maximum number of prefixes (routes) that can be redistributed into OSPFv3 from other protocols or other OSPFv3 processes. Such a limit helps prevent the device from being flooded by too many redistributed routes.
See IP Routing → Configuring OSPFv3 Limit on Number of Redistributed Routes.
(Network Essentials and Network Advantage) |
IPv6: RFC 5453 Reserved IPv6 Interface Identifiers |
An autoconfigured IPv6 address can contain interface identifiers that are not part of the reserved range of interface identifiers specified in RFC 5453.
See IP Multicast Routing → IP Multicast Routing Technology Overview.
(Network Essentials and Network Advantage) |
IPv6 Downloadable ACL (DACL) |
Applies per-port IPv6 access-layer restrictions based on Identity Services Engine (ISE) profiles.
See Security → IPv6 ACLs.
(Network Essentials and Network Advantage) |
IPv6 Neighbor Discovery
|
See IP Addressing Services → Enhanced IPv6 Neighbor Discovery Cache Management.
(Network Essentials and Network Advantage) |
MIBs for IPv6 traffic |
The following RFCs are supported:
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator at the following URL: http://www.cisco.com/go/mibs
(Network Essentials and Network Advantage) |
Multiprotocol Label Switching (MPLS): EIGRP MPLS VPN PE-CE Site of Origin (SoO) |
Introduces the capability to filter MPLS Virtual Private Network (VPN) traffic on a per-site basis for Enhanced Interior Gateway Routing Protocol (EIGRP) networks. SoO filtering is configured at the interface level. It is used to manage MPLS VPN traffic and to prevent transient routing loops from occurring in complex and mixed network topologies.
See Multiprotocol Label Switching → Configuring EIGRP MPLS VPN PE-CE Site of Origin.
(Network Advantage) |
Per-port native VLAN tagging |
Provides the option to enable or disable native VLAN tagging on a per-port basis. Normally, you configure 802.1Q trunks with a native VLAN ID, which strips tagging from all packets on that VLAN. To maintain tagging on the native VLAN and drop untagged traffic, use the [ no] vlan dot1q tag native command in global configuration mode.
See Layer 2 → Configuring IEEE 802.1Q Tunneling.
(Network Essentials and Network Advantage) |
Selective Q-in-Q |
Maps the specified customer VLAN-IDs (C-VLANs) entering the User Network Interface (UNI) to the specified, translated VLAN IDs (S-VLANs). The feature enables selective tunnelling or translation of C-VLANs to S-VLANs on interfaces configured as trunk ports. The egress packet is double-tagged with the C-VLAN ID and the mapped S-VLAN ID.
See Layer 2 → Configuring VLAN Mapping.
(Network Essentials and Network Advantage) |
VRRPv3 Object Tracking: IPv6 Integration |
Virtual Router Redundancy Protocol (VRRP) enables a group of devices to form a single virtual device to provide redundancy. Object tracking is an independent process that manages the creation, monitoring, and removal of tracked objects such as: the state of the line protocol of an interface, the state of an IP route, or the reachability of a route. Clients (like VRRP) register their interest with specific tracked objects and act when the state of an object changes. Starting with this release, the VRRPv3 Object Tracking Integration features supports IPv6.
See IP Addressing Services → VRRPv3: Object Tracking Integration.
(Network Advantage) |
Important Notes
-
Cisco StackWise Virtual - Supported and Unsupported Features
-
Unsupported Features—Cisco Catalyst 9500 Series Switches - High Performance
-
Changing the Default Interface Behaviour—Cisco Catalyst 9500 Series Switches - High Performance Only
Cisco StackWise Virtual - Supported and Unsupported Features
(applies only to C9500-12Q, C9500-16X, C9500-24Q, C9500-40X models)When you enable Cisco StackWise Virtual on the device
-
Layer 2, Layer 3, Security, Quality of Service, Multicast, Application, Monitoring and Management, Multiprotocol Label Switching, and High Availability are supported.
Contact the Cisco Technical Support Centre for the specific list of features that are supported under each one of these technologies.
-
Resilient Ethernet Protocol, Remote Switched Port Analyzer, and Sofware-Defined Access are NOT supported
Unsupported Features—All Models
-
Bluetooth
-
Bidirectional Protocol Independent Multicast (Bidir-PIM)
-
IPsec VPN
-
Performance Monitoring (PerfMon)
-
Virtual Routing and Forwarding (VRF)-Aware web authentication
Unsupported Features—Cisco Catalyst 9500 Series Switches
-
Border Gateway Protocol (BGP) Additional Paths
-
Cisco TrustSec Network Device Admission Control (NDAC) on Uplinks
-
Flexible NetFlow—NetFlow v5 Export Protocol, 4-byte (32-bit) AS Number Support, TrustSec NetFlow IPv4 Security Group Access Control List (SGACL) Deny and Drop Export
-
Gateway Load Balancing Protocol (GLBP)
-
Lawful Intercept (LI)
-
Network-Powered Lighting (including COAP Proxy Server, 2-event Classification, Perpetual POE, Fast PoE)
-
PIM Bidirectional Forwarding Detection (PIM BFD), PIM Snooping.
-
Quality of Service—Classification (Layer 3 Packet Length, Time-to-Live (TTL)), per queue policer support, sharped profile enablement for egress per port queues, L2 Miss, Ingress Packet FIFO (IPF)
-
Unicast over Point to Multipoint (P2MP) Generic Routing Encapsulation (GRE), Multicast over P2MP GRE.
Unsupported Features—Cisco Catalyst 9500 Series Switches - High Performance
-
Cisco Application Visibility and Control (AVC)
-
MPLS Label Distribution Protocol (MPLS LDP) VRF-Aware Static Labels
-
Next Generation Network-Based Application Recognition (NBAR) and Next Generation NBAR (NBAR2)
-
QoS Options on GRE Tunnel Interfaces
Complete List of Supported Features
For the complete list of features supported on a platform, see the Cisco Feature Navigator at https://www.cisco.com/go/cfn.
When you search for the list of features by platform select
-
CAT9500—to see all the features supported on the C9500-12Q, C9500-16X, C9500-24Q, C9500-40X models
-
CAT9500 HIGH PERFORMANCE (32C; 32QC; 48Y4C; 24Y4C)—to see all the features supported on the C9500-24Y4C, C9500-32C, C9500-32QC, and C9500-48Y4C models
Changing the Default Interface Behaviour—Cisco Catalyst 9500 Series Switches - High Performance Only
Starting with Cisco IOS XE Gibraltar 16.11.1, the default interface for all High Performance models in the series changes from Layer 3 to Layer 2.
To ensure that this change does not erase existing configuration, complete the task described here: Changing the Default Interface and Upgrading or Downgrading in Install Mode (for Cisco Catalyst 9500 Series Switches - High Performance Only), before you upgrade to or downgrade from Cisco IOS XE Gibraltar 16.11.1.
Supported Hardware
Cisco Catalyst 9500 Series Switches—Model Numbers
The following table lists the supported hardware models and the default license levels they are delivered with. For more information about the available license levels, see section License Levels.
Base PIDs are the model numbers of the switch.
Bundled PIDs indicate the orderable part numbers for base PIDs that are bundled with a particular network module. Entering the show version , show module , or show inventory commands on such a switch (bundled PID), displays its base PID.
Switch Model |
Default License Level1 |
Description |
---|---|---|
Base PIDs |
||
C9500-12Q-E |
Network Essentials |
12 40-Gigabit Ethernet QSFP+ ports and two power supply slots |
C9500-12Q-A |
Network Advantage |
|
C9500-16X-E |
Network Essentials |
16 1/10-Gigabit Ethernet SFP/SFP+ ports and two power supply slots |
C9500-16X-A |
Network Advantage |
|
C9500-24Q-E |
Network Essentials |
24-Port 40-Gigabit Ethernet QSFP+ ports and two power supply slots |
C9500-24Q-A |
Network Advantage |
|
C9500-40X-E |
Network Essentials |
40 1/10-Gigabit Ethernet SFP/SFP+ ports and two power supply slots |
C9500-40X-A |
Network Advantage |
|
Bundled PIDs |
||
C9500-16X-2Q-E |
Network Essentials |
16 10-Gigabit Ethernet SFP+ port switch and a 2-Port 40-Gigabit Ethernet (QSFP) network module on uplink ports |
C9500-16X-2Q-A |
Network Advantage |
|
C9500-24X-E |
Network Essentials |
16 10-Gigabit Ethernet SFP+ port switch and an 8-Port 10-Gigabit Ethernet (SFP) network module on uplink ports |
C9500-24X-A |
Network Advantage |
|
C9500-40X-2Q-E |
Network Essentials |
40 10-Gigabit Ethernet SFP+ port switch and a 2-Port 40-Gigabit Ethernet (QSFP) network module on uplink ports |
C9500-40X-2Q-A |
Network Advantage |
|
C9500-48X-E |
Network Essentials |
40 10-Gigabit Ethernet SFP+ port switch and an 8-Port 10-Gigabit Ethernet (SFP) network module on uplink ports |
C9500-48X-A |
Network Advantage |
Switch Model |
Default License Level2 |
Description |
---|---|---|
C9500-24Y4C-E |
Network Essentials |
24 SFP28 ports that support 1/10/25-GigabitEthernet connectivity, four QSFP uplink ports that support 100/40-GigabitEthernet connectivity; two power supply slots. |
C9500-24Y4C-A |
Network Advantage |
|
C9500-32C-E |
Network Essentials |
32 QSFP28 ports that support 40/100 GigabitEthernet connectivity; two power supply slots. |
C9500-32C-A |
Network Advantage |
|
C9500-32QC-E |
Network Essentials |
32 QSFP28 ports, where you can have 24 ports that support 40-GigabitEthernet connectivity and 4 ports that support 100-GigabitEthernet connectivity, OR 32 ports that support 40-GigabitEthernet connectivity, OR 16 ports that support 100-GigabitEthernet connectivity; two power supply slots. |
C9500-32QC-A |
Network Advantage |
|
C9500-48Y4C-E |
Network Essentials |
48 SFP28 ports that support 1/10/25-GigabitEthernet connectivity; four QSFP uplink ports that supports up to 100/40-GigabitEthernet connectivity; two power supply slots. |
C9500-48Y4C-A |
Network Advantage |
Network Modules
The following table lists optional network modules for uplink ports available with some configurations .
Network Module |
Description |
---|---|
C9500-NM-8X |
Cisco Catalyst 9500 Series Network Module 8-port 1/10 Gigabit Ethernet with SFP/SFP+ Note the supported switch models (Base PIDs):
|
C9500-NM-2Q |
Cisco Catalyst 9500 Series Network Module 2-port 40 Gigabit Ethernet with QSFP+ Note the supported switch models (Base PIDs):
|
Optics Modules
Cisco Catalyst Series Switches support a wide range of optics and the list of supported optics is updated on a regular basis. Use the Transceiver Module Group (TMG) Compatibility Matrix tool, or consult the tables at this URL for the latest transceiver module compatibility information: https://www.cisco.com/en/US/products/hw/modules/ps5455/products_device_support_tables_list.html
Compatibility Matrix
The following table provides software compatibility information.
Catalyst 9500, 9500-High Performance and 9500X |
Cisco Identity Services Engine |
Cisco Access Control Server |
Cisco Prime Infrastructure |
---|---|---|---|
Gibraltar 16.11.1 |
2.6 2.4 Patch 5 |
5.4 5.5 |
PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack See Cisco Prime Infrastructure 3.4 → Downloads. |
Gibraltar 16.10.1 |
2.3 Patch 1 2.4 Patch 1 |
5.4 5.5 |
PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack See Cisco Prime Infrastructure 3.4→ Downloads. |
Fuji 16.9.8 |
2.5 2.1 |
5.4 5.5 |
PI 3.9 + PI 3.9 latest maintenance release + PI 3.9 latest device pack See Cisco Prime Infrastructure 3.9 → Downloads. |
Fuji 16.9.7 |
2.5 2.1 |
5.4 5.5 |
PI 3.9 + PI 3.9 latest maintenance release + PI 3.9 latest device pack See Cisco Prime Infrastructure 3.9 → Downloads. |
Fuji 16.9.6 |
2.3 Patch 1 2.4 Patch 1 |
5.4 5.5 |
PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack See Cisco Prime Infrastructure 3.4→ Downloads. |
Fuji 16.9.5 |
2.3 Patch 1 2.4 Patch 1 |
5.4 5.5 |
PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack See Cisco Prime Infrastructure 3.4→ Downloads. |
Fuji 16.9.4 |
2.3 Patch 1 2.4 Patch 1 |
5.4 5.5 |
PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack See Cisco Prime Infrastructure 3.4→ Downloads. |
Fuji 16.9.3 |
2.3 Patch 1 2.4 Patch 1 |
5.4 5.5 |
PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack See Cisco Prime Infrastructure 3.4→ Downloads. |
Fuji 16.9.2 |
2.3 Patch 1 2.4 Patch 1 |
5.4 5.5 |
PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack See Cisco Prime Infrastructure 3.4→ Downloads. |
Fuji 16.9.1 |
2.3 Patch 1 2.4 Patch 1 |
5.4 5.5 |
PI 3.4 + PI 3.4 latest device pack See Cisco Prime Infrastructure 3.4→ Downloads. |
Fuji 16.8.1a |
2.3 Patch 1 2.4 |
5.4 5.5 |
PI 3.3 + PI 3.3 latest maintenance release + PI 3.3 latest device pack See Cisco Prime Infrastructure 3.3→ Downloads. |
Everest 16.6.4a |
2.2 2.3 |
5.4 5.5 |
PI 3.1.6 + Device Pack 13 See Cisco Prime Infrastructure 3.1 → Downloads. |
Everest 16.6.4 |
2.2 2.3 |
5.4 5.5 |
PI 3.1.6 + Device Pack 13 See Cisco Prime Infrastructure 3.1 → Downloads. |
Everest 16.6.3 |
2.2 2.3 |
5.4 5.5 |
PI 3.1.6 + Device Pack 13 See Cisco Prime Infrastructure 3.1 → Downloads |
Everest 16.6.2 |
2.2 2.3 |
5.4 5.5 |
PI 3.1.6 + Device Pack 13 See Cisco Prime Infrastructure 3.1 → Downloads |
Everest 16.6.1 |
2.2 |
5.4 5.5 |
PI 3.1.6 + Device Pack 13 See Cisco Prime Infrastructure 3.1 → Downloads |
Everest 16.5.1a |
2.1 Patch 3 |
5.4 5.5 |
- |
Web UI System Requirements
The following subsections list the hardware and software required to access the Web UI:
Minimum Hardware Requirements
Processor Speed |
DRAM |
Number of Colors |
Resolution |
Font Size |
---|---|---|---|---|
233 MHz minimum3 |
512 MB4 |
256 |
1280 x 800 or higher |
Small |
Software Requirements
Operating Systems
-
Windows 10 or later
-
Mac OS X 10.9.5 or later
Browsers
-
Google Chrome—Version 59 or later (On Windows and Mac)
-
Microsoft Edge
-
Mozilla Firefox—Version 54 or later (On Windows and Mac)
-
Safari—Version 10 or later (On Mac)
Upgrading the Switch Software
This section covers the various aspects of upgrading or downgrading the device software.
Note |
You cannot use the Web UI to install, upgrade, or downgrade device software. |
Finding the Software Version
The package files for the Cisco IOS XE software are stored on the system board flash device (flash:).
You can use the show version privileged EXEC command to see the software version that is running on your switch.
Note |
Although the show version output always shows the software image running on the switch, the model name shown at the end of this display is the factory configuration and does not change if you upgrade the software license. |
You can also use the dir filesystem: privileged EXEC command to see the directory names of other software images that you might have stored in flash memory.
Software Images
Release |
Image Type |
File Name |
---|---|---|
Cisco IOS XE Gibraltar 16.11.1 |
CAT9K_IOSXE |
cat9k_iosxe.16.11.01.SPA.bin |
Licensed Data Payload Encryption (LDPE) |
cat9k_iosxeldpe.16.11.01.SPA.bin |
Automatic Boot Loader Upgrade
When you upgrade from the existing release on your switch to a later or newer release for the first time, the boot loader may be automatically upgraded, based on the hardware version of the switch. If the boot loader is automatically upgraded, it will take effect on the next reload. If you go back to the older release after this, the boot loader is not downgraded. The updated boot loader supports all previous releases.
For subsequent Cisco IOS XE Everest 16.x.x, or Cisco IOS XE Fuji 16.x.x releases, if there is a new bootloader in that release, it may be automatically upgraded based on the hardware version of the switch when you boot up your switch with the new image for the first time.
Caution |
Do not power cycle your switch during the upgrade. |
Scenario |
Automatic Boot Loader Response |
---|---|
If you boot Cisco IOS XE Gibraltar 16.11.1 first time |
On Cisco Catalyst 9500 Series Switches, the boot loader may be upgraded to version 16.10.1r [FC1]. For example:
On Cisco Catalyst 9500 Series Switches - High Performance, the boot loader may be upgraded to version 16.11.1r[FC2]. For example:
When using install commands to upgrade software, you may see this during the install operation:
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Software Installation Commands
Summary of Software Installation Commands Supported starting from Cisco IOS XE Everest 16.6.2 and later releases |
|
---|---|
To install and activate the specified file, and to commit changes to be persistent across reloads:
To separately install, activate, commit, cancel, or remove the installation file: |
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add file tftp: filename |
Copies the install file package from a remote location to the device and performs a compatibility check for the platform and image versions. |
activate [ auto-abort-timer] |
Activates the file, and reloads the device. The auto-abort-timer keyword automatically rolls back image activation. |
commit |
Makes changes persistent over reloads. |
rollback to committed |
Rolls back the update to the last committed version. |
abort |
Cancels file activation, and rolls back to the version that was running before the current installation procedure started. |
remove |
Deletes all unused and inactive software installation files. |
Note |
The request platform software commands are deprecated starting from Cisco IOS XE Gibraltar 16.10.1. The commands are visible on the CLI in this release and you can configure them, but we recommend that you use the install commands to upgrade or downgrade. |
Summary of request platform software Commands
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clean |
Cleans unnecessary package files from media |
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copy |
Copies package to media |
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describe |
Describes package content |
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expand |
Expands all-in-one package to media |
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install |
Installs the package |
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uninstall |
Uninstalls the package |
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verify |
Verifies In Service Software Upgrade (ISSU) software package compatibility |
Changing the Default Interface and Upgrading or Downgrading in Install Mode (for Cisco Catalyst 9500 Series Switches - High Performance Only)
Before you begin
Read the entire section including the steps and only then proceed with performing the task.
Applicable Devices and Releases
This task is applicable to the following devices and releases:
When upgrading these devices ... |
From... |
To... |
---|---|---|
High Performance models of the Cisco Catalyst 9500 Series Switches (C9500-24Y4C, C9500-32C, C9500-32QC, and C9500-48Y4C. This includes standalone switches and switches where Cisco StackWise Virtual is configured. |
An earlier Cisco IOS XE 16.x.x |
Cisco IOS XE Gibraltar 16.11.1, |
When downgrading these devices ... |
From... |
To... |
High Performance models of the Cisco Catalyst 9500 Series Switches (C9500-24Y4C, C9500-32C, C9500-32QC, and C9500-48Y4C). This includes standalone switches and switches where Cisco StackWise Virtual is configured. |
Cisco IOS XE Gibraltar 16.11.1 |
An earlier Cisco IOS XE 16.x.x |
High Performance models were introduced in Cisco IOS XE Fuji 16.8.1a
Purpose
Starting in Cisco IOS XE Gibraltar 16.11.1, the above mentioned devices will bootup with interfaces in the default Layer 2 state. In all earlier releases, the default is Layer 3. This task describes what you have to do, to ensure that this change does not erase existing interface configuration or cause a network downtime, and how you can safely upgrade to or downgrade from Cisco IOS XE Gibraltar 16.11.1.
Note |
For all other Cisco Catalyst 9000 Series Switches, the default interface continues to be Layer 2. |
Description
This task updates running configuration as follows:
-
The switchport command is added to all Layer 2 interfaces.
-
The no switchport command is added to all Layer 3 interfaces.
Applicable interfaces include physical ports, breakout interfaces, and port channels. It is not applicable to tunnels, SVIs, or sub-interfaces.
Note |
Any existing interface configuration is preserved. |
Reason for this Change
The default interface is changed to Layer 2, to enable day 0 discovery when using Cisco Digital Network Architecture (DNA) Center (or Cisco DNA Center).
Interactions with other Features
None.
In Service Software Upgrade (ISSU) is not supported when you upgrade from an earlier Cisco IOS XE 16.x.x release to Cisco IOS XE Gibraltar 16.11.1, or when you downgrade from Cisco IOS XE Gibraltar 16.11.1 to an earlier Cisco IOS XE 16.x.x.
Available Methods
-
You can use a script that automatically makes the necessary running configuration changes and then upgrade or downgrade. This document covers only this method.
-
You can manually update running configuration for all interfaces and then upgrade or downgrade.
Procedure
Step 1 |
Backup the current running configuration.
|
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Step 2 |
Disable the auto-archive feature, and any similar scripts.
You can re-enable these features after completing this task. |
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Step 3 |
Executing the script (in a later step) will generate two new files in flash (currentconfig.txt & newconfig.txt), ensure that you do not have files with the same file names in flash, else they will be overwritten. |
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Step 4 |
Copy the new image, set the boot variable, and save configuration. |
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Step 5 |
Copy the script, save it as a text file, and copy it to bootflash. |
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Step 6 |
Run the script.
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Step 7 |
Verify that two new
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Step 8 |
Copy file
|
||||||||
Step 9 |
Install the new image to flash.
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Step 10 |
Check the flash partition After the software has been successfully installed, use these commands to verify that the flash partition has ten new
|
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Step 11 |
Check the software version The sample output below shows that the Cisco IOS XE Gibraltar 16.11.1 version is successfully installed on the switch.
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Step 12 |
Check configuration updates. Executing the script ensures that there is no functional impact or change in behavior after upgrading to Cisco IOS XE Gibraltar 16.11.1. If there were configured interfaces before upgrade, after upgrade, the old configuration is preserved - as displayed in the
examples below:
|
Upgrading in Install Mode
Follow these instructions to upgrade from one release to another, in install mode. To perform a software image upgrade, you must be booted into IOS through boot flash:packages.conf
Before you begin
Note that you can use this procedure for the following upgrade scenarios:
When upgrading from ... |
Use these commands... |
To upgrade to... |
---|---|---|
Cisco IOS XE Everest 16.5.1a or Cisco IOS XE Everest 16.6.1 |
Only request platform software commands |
Cisco IOS XE Gibraltar 16.11.x |
Cisco IOS XE Everest 16.6.2 and later |
On Cisco Catalyst 9500 Series Switches either install commands or request platform software commands |
Warning |
Do not use this procedure to upgrade any of the High Performance models to Cisco IOS XE Gibraltar 16.11.1. Doing so will erase certain configuration. For these models, follow the procedure described here:Changing the Default Interface and Upgrading or Downgrading in Install Mode (for Cisco Catalyst 9500 Series Switches - High Performance Only) |
The sample output in this section displays upgrade from
-
Cisco IOS XE Everest 16.5.1a to Cisco IOS XE Gibraltar 16.11.1 using request platform software commands.
-
Cisco IOS XE Everest 16.6.3 to Cisco IOS XE Gibraltar 16.11.1 using install commands.
Procedure
Step 1 |
Clean Up Ensure that you have at least 1GB of space in flash to expand a new image. Clean up old installation files in case of insufficient space.
The following sample output displays the cleaning up of unused files, by using the request platform software package clean command for upgrade scenario Cisco IOS XE Everest 16.5.1a to Cisco IOS XE Gibraltar 16.11.1.
The following sample output displays the cleaning up of unused files, by using the install remove inactive command, for upgrade scenario Cisco IOS XE Everest 16.6.3 to Cisco IOS XE Gibraltar 16.11.1:
|
||||
Step 2 |
Copy new image to flash |
||||
Step 3 |
Set boot variable |
||||
Step 4 |
Software install image to flash
The following sample output displays installation of the Cisco IOS XE Gibraltar 16.11.1 software image to flash, by using the request platform software package install command, for upgrade scenario Cisco IOS XE Everest 16.5.1a to Cisco IOS XE Gibraltar 16.11.1.
The following sample output displays installation of the Cisco IOS XE Gibraltar 16.11.1 software image to flash, by using the install add file activate commit command, for upgrade scenario Cisco IOS XE Everest 16.6.3 to Cisco IOS XE Gibraltar 16.11.1:
|
||||
Step 5 |
dir flash: After the software has been successfully installed, use this command to verify that the flash partition has ten new The following is sample output of the dir flash: command for upgrade scenario Cisco IOS XE Everest 16.5.1a to Cisco IOS XE Gibraltar 16.11.1:
The following is sample output of the dir flash: command for the Cisco IOS XE Everest 16.6.3 to Cisco IOS XE Gibraltar 16.11.1 upgrade scenario:
The following sample output displays the .conf files in the flash partition; note the three .conf files:
|
||||
Step 6 |
Reload |
Downgrading in Install Mode
Follow these instructions to downgrade from one release to another, in install mode. To perform a software image downgrade, you must be booted into IOS via “ boot flash:packages.conf .”
Before you begin
Note that you can use this procedure for the following downgrade scenarios:
When downgrading from ... |
Use these commands... |
To downgrade to... |
---|---|---|
Cisco IOS XE Gibraltar 16.11.x |
On Cisco Catalyst 9500 Series Switches, either install commands or request platform software commands |
Cisco IOS XE Gibraltar 16.10.x or an earlier release. |
Warning |
Do not use this procedure to downgrade any of the High Performance models from Cisco IOS XE Gibraltar 16.11.1 to any earlier release. Doing so will erase certain configuration. For these models, follow the procedure described here:Changing the Default Interface and Upgrading or Downgrading in Install Mode (for Cisco Catalyst 9500 Series Switches - High Performance Only) |
The sample output in this section shows downgrade from Cisco IOS XE Gibraltar 16.11.1 to Cisco IOS XE Everest 16.6.1, by using the install commands.
Important |
New switch models that are introduced in a release cannot be downgraded. The release in which a switch model is introduced is the minimum software version for that model.
|
Procedure
Step 1 |
Clean Up Ensure that you have at least 1GB of space in flash to expand a new image. Clean up old installation files in case of insufficient space.
The following sample output displays the cleaning up of Cisco IOS XE Gibraltar 16.11.1 files using the install remove inactive command:
|
||
Step 2 |
Copy new image to flash |
||
Step 3 |
Downgrade software image
The following example displays the installation of the Cisco IOS XE Everest 16.6.1 software image to flash, by using the install add file activate commit command.
|
||
Step 4 |
Reload |
Licensing
This section provides information about the licensing packages for features available on Cisco Catalyst 9000 Series Switches.
License Levels
The software features available on Cisco Catalyst 9500 Series Switches and Cisco Catalyst 9500 Series Switches - High Performance fall under these base or add-on license levels.
Base Licenses
-
Network Essentials
-
Network Advantage—Includes features available with the Network Essentials license and more.
Add-On Licenses
Add-On Licenses require a Network Essentials or Network Advantage as a pre-requisite. The features available with add-on license levels provide Cisco innovations on the switch, as well as on the Cisco Digital Network Architecture Center (Cisco DNA Center).
-
DNA Essentials
-
DNA Advantage— Includes features available with the DNA Essentials license and more.
To find information about platform support and to know which license levels a feature is available with, use Cisco Feature Navigator. To access Cisco Feature Navigator, go to https://cfnng.cisco.com. An account on cisco.com is not required.
License Types
The following license types are available:
-
Permanent—for a license level, and without an expiration date.
-
Term—for a license level, and for a three, five, or seven year period.
-
Evaluation—a license that is not registered.
License Levels - Usage Guidelines
-
Base licenses (Network Essentials and Network-Advantage) are ordered and fulfilled only with a permanent license type.
-
Add-on licenses (DNA Essentials and DNA Advantage) are ordered and fulfilled only with a term license type.
-
An add-on license level is included when you choose a network license level. If you use DNA features, renew the license before term expiry, to continue using it, or deactivate the add-on license and then reload the switch to continue operating with the base license capabilities.
-
When ordering an add-on license with a base license, note the combinations that are permitted and those that are not permitted:
Table 3. Permitted Combinations DNA Essentials
DNA Advantage
Network Essentials
Yes
No
Network Advantage
Yes5
Yes
5 You will be able to purchase this combination only at the time of the DNA license renewal and not when you purchase DNA-Essentials the first time. -
Evaluation licenses cannot be ordered. They are not tracked via Cisco Smart Software Manager and expire after a 90-day period. Evaluation licenses can be used only once on the switch and cannot be regenerated. Warning system messages about an evaluation license expiry are generated only 275 days after expiration and every week thereafter. An expired evaluation license cannot be reactivated after reload. This applies only to Smart Licensing. The notion of evaluation licenses does not apply to Smart Licensing Using Policy.
Cisco Smart Licensing
Cisco Smart Licensing is a flexible licensing model that provides you with an easier, faster, and more consistent way to purchase and manage software across the Cisco portfolio and across your organization. And it’s secure – you control what users can access. With Smart Licensing you get:
-
Easy Activation: Smart Licensing establishes a pool of software licenses that can be used across the entire organization—no more PAKs (Product Activation Keys).
-
Unified Management: My Cisco Entitlements (MCE) provides a complete view into all of your Cisco products and services in an easy-to-use portal, so you always know what you have and what you are using.
-
License Flexibility: Your software is not node-locked to your hardware, so you can easily use and transfer licenses as needed.
To use Smart Licensing, you must first set up a Smart Account on Cisco Software Central (http://software.cisco.com).
Important |
Cisco Smart Licensing is the default and the only available method to manage licenses. |
For a more detailed overview on Cisco Licensing, go to cisco.com/go/licensingguide.
Deploying Smart Licensing
The following provides a process overview of a day 0 to day N deployment directly initiated from a device that is running Cisco IOS XE Fuji 16.9.1 or later releases. Links to the configuration guide provide detailed information to help you complete each one of the smaller tasks.
Procedure
Step 1 |
Begin by establishing a connection from your network to Cisco Smart Software Manager on cisco.com. In the software configuration guide of the required release, see System Management → Configuring Smart Licensing → Connecting to CSSM |
Step 2 |
Create and activate your Smart Account, or login if you already have one. To create and activate Smart Account, go to Cisco Software Central → Create Smart Accounts. Only authorized users can activate the Smart Account. |
Step 3 |
Complete the Cisco Smart Software Manager set up. |
With this,
-
The device is now in an authorized state and ready to use.
-
The licenses that you have purchased are displayed in your Smart Account.
Using Smart Licensing on an Out-of-the-Box Device
Starting from Cisco IOS XE Fuji 16.9.1, if an out-of-the-box device has the software version factory-provisioned, all licenses on such a device remain in evaluation mode until registered in Cisco Smart Software Manager.
In the software configuration guide of the required release, see System Management → Configuring Smart Licensing → Registering the Device in CSSM
How Upgrading or Downgrading Software Affects Smart Licensing
Starting from Cisco IOS XE Fuji 16.9.1, Smart Licensing is the default and only license management solution; all licenses are managed as Smart Licenses.
Important |
Starting from Cisco IOS XE Fuji 16.9.1, the Right-To-Use (RTU) licensing mode is deprecated, and the associated license right-to-use command is no longer available on the CLI. |
Note how upgrading to a release that supports Smart Licensing or moving to a release that does not support Smart Licensing affects licenses on a device:
-
When you upgrade from an earlier release to one that supports Smart Licensing—all existing licenses remain in evaluation mode until registered in Cisco Smart Software Manager. After registration, they are made available in your Smart Account.
In the software configuration guide of the required release, see System Management → Configuring Smart Licensing → Registering the Device in CSSM
-
When you downgrade to a release where Smart Licensing is not supported—all smart licenses on the device are converted to traditional licenses and all smart licensing information on the device is removed.
Scaling Guidelines
For information about feature scaling guidelines, see the Cisco Catalyst 9500 Series Switches datasheet at:
Limitations and Restrictions
With Cisco Catalyst 9500 Series Switches and Cisco Catalyst 9500 Series Switches - High Performance—If a feature is not supported on a switch model, you do not have to factor in any limitations or restrictons that may be listed here. If limitations or restrictions are listed for a feature that is supported, check if model numbers are specified, to know if they apply. If model numbers are not specified, the limitations or restrictons apply to all models in the series.
-
Auto negotiation
We recommend not changing Forward Error Correction (FEC) when auto negotiation is ON. This is applicable to 100G/40G/25G CU cables on the C9500-32C, C9500-32QC, C9500-24Y4C and C9500-48Y4C models of the series.
Auto negotiation is always ON for GLC-T and GLC-TE and cannot be disabled. This is applicable to GLC-T and GLC-TE on C9500-48Y4C and C9500-24Y4C models of the series.
-
Cisco StackWise Virtual
-
On Cisco Catalyst 9500 Series Switches, when Cisco StackWise Virtual is configured, breakout ports using 4X10G breakout cables, or the Cisco Cisco QSFP to SFP or SFP+ Adapter (QSA) module can only be used as data ports; they cannot be used to configure StackWise Virtual links (SVLs) or dual-active detective (DAD) links.
-
On Cisco Catalyst 9500 Series Switches - High Performance, when Cisco StackWise Virtual is configured, breakout ports using 4X25G and 4X10G breakout cables, or the Cisco QSA module can only be used as data ports; they cannot be used to configure SVLs or DAD links.
-
-
Cisco TrustSec restrictions—Cisco TrustSec can be configured only on physical interfaces, not on logical interfaces.
-
Control Plane Policing (CoPP): The show run command does not display information about classes configured under
system-cpp policy
, when they are left at default values. Use the show policy-map system-cpp-policy or the show policy-map control-plane commands in privileged EXEC mode instead. -
Flexible NetFlow limitations
-
You cannot configure NetFlow export using the Ethernet Management port (GigabitEthernet0/0).
-
You can not configure a flow monitor on logical interfaces, such as switched virtual interfaces (SVIs), port-channel, loopback, tunnels.
-
You can not configure multiple flow monitors of same type (ipv4, ipv6 or datalink) on the same interface for same direction.
-
-
Hardware limitations:
-
Use the MODE button to switch-off the beacon LED.
-
All port LED behavior is undefined until interfaces are fully initialized.
-
1G with Cisco QSA Module (CVR-QSFP-SFP10G) is not supported on the uplink ports of the C9500-24Y4C and C9500-48Y4C models.
-
The following limitations apply to Cisco QSA Module (CVR-QSFP-SFP10G) when Cisco 1000Base-T Copper SFP (GLC-T) or Cisco 1G Fiber SFP Module for Multimode Fiber are plugged into the QSA module:
-
1G Fiber modules over QSA do not support autonegotiation. Auto-negotiation should be disabled on the far-end devices.
-
Although visible in the CLI, the command [no] speed nonegotiate is not supported with 1G Fiber modules over QSA.
-
Only GLC-T over QSA supports auto-negotiation.
-
GLC-T supports only port speed of 1000 Mb/s over QSA. Port speeds of 10/100-Mb/s are not supported due to hardware limitation.
-
-
When you use Cisco QSFP-4SFP10G-CUxM Direct-Attach Copper Cables, autonegotiation is enabled by default. If the other end of the line does not support autonegotation, the link does not come up.
-
Autonegotiation is not supported on HundredGigabitEthernet1/0/49 to HundredGigabitEthernet1/0/52 uplink ports of the C9500-48Y4C models, and HundredGigabitEthernet1/0/25 to HundredGigabitEthernet1/0/28 uplink ports of the C9500-24Y4C models. Disable autonegotiation on the peer device if you are using QSFP-H40G-CUxx and QSFP-H40G-ACUxx cables.
-
For QSFP-H100G-CUxx cables, the C9500-48Y4C and C9500-24Y4C models support the cables only if both sides of the connection are either C9500-48Y4C or C9500-24Y4C.
-
-
Interoperability limitations—When you use Cisco QSFP-4SFP10G-CUxM Direct-Attach Copper Cables, if one end of the 40G link is a Catalyst 9400 Series Switch and the other end is a Catalyst 9500 Series Switch, the link does not come up, or comes up on one side and stays down on the other. To avoid this interoperability issue between devices, apply the the speed nonegotiate command on the Catalyst 9500 Series Switch interface. This command disables autonegotiation and brings the link up. To restore autonegotiation, use the no speed nonegotiation command.
-
In-Service Software Upgrade (ISSU)—On Cisco Catalyst 9500 Series Switches (C9500-12Q, C9500-16X, C9500-24Q, C9500-40X), ISSU from Cisco IOS XE Fuji 16.9.x to Cisco IOS XE Gibraltar 16.10.x or to Cisco IOS XE Gibraltar 16.11.x is not supported.
-
QoS restrictions
-
When configuring QoS queuing policy, the sum of the queuing buffer should not exceed 100%.
-
For QoS policies, only switched virtual interfaces (SVI) are supported for logical interfaces.
-
QoS policies are not supported for port-channel interfaces, tunnel interfaces, and other logical interfaces.
-
-
Secure Shell (SSH)
-
Use SSH Version 2. SSH Version 1 is not supported.
-
When the device is running SCP and SSH cryptographic operations, expect high CPU until the SCP read process is completed. SCP supports file transfers between hosts on a network and uses SSH for the transfer.
Since SCP and SSH operations are currently not supported on the hardware crypto engine, running encryption and decryption process in software causes high CPU. The SCP and SSH processes can show as much as 40 or 50 percent CPU usage, but they do not cause the device to shutdown.
-
-
USB Authentication—When you connect a Cisco USB drive to the switch, the switch tries to authenticate the drive against an existing encrypted preshared key. Since the USB drive does not send a key for authentication, the following message is displayed on the console when you enter password encryption aes command:
Device(config)# password encryption aes Master key change notification called without new or old key
-
VLAN Restriction—It is advisable to have well-defined segregation while defining data and voice domain during switch configuration and to maintain a data VLAN different from voice VLAN across the switch stack. If the same VLAN is configured for data and voice domains on an interface, the resulting high CPU utilization might affect the device.
-
Wired Application Visibility and Control limitations:
-
NBAR2 (QoS and Protocol-discovery) configuration is allowed only on wired physical ports. It is not supported on virtual interfaces, for example, VLAN, port channel nor other logical interfaces.
-
NBAR2 based match criteria ‘match protocol’ is allowed only with marking or policing actions. NBAR2 match criteria will not be allowed in a policy that has queuing features configured.
-
‘Match Protocol’: up to 256 concurrent different protocols in all policies.
-
NBAR2 and Legacy NetFlow cannot be configured together at the same time on the same interface. However, NBAR2 and wired AVC Flexible NetFlow can be configured together on the same interface.
-
Only IPv4 unicast (TCP/UDP) is supported.
-
AVC is not supported on management port (Gig 0/0)
-
NBAR2 attachment should be done only on physical access ports. Uplink can be attached as long as it is a single uplink and is not part of a port channel.
-
Performance—Each switch member is able to handle 500 connections per second (CPS) at less than 50% CPU utilization. Above this rate, AVC service is not guaranteed.
-
Scale—Able to handle up to 5000 bi-directional flows per 24 access ports and 10000 bi-directional flows per 48 access ports.
-
-
YANG data modeling limitation—A maximum of 20 simultaneous NETCONF sessions are supported.
-
Embedded Event Manager—Identity event detector is not supported on Embedded Event Manager.
-
Secure Password Migration—Type 6 encrypted password is supported from Cisco IOS XE Gibraltar 16.10.1 and later releases. Autoconversion to password type 6 is supported from Cisco IOS XE Gibraltar 16.11.1 and later releases.
If the startup configuration has a type 6 password and you downgrade to a version in which type 6 password is not supported, you can/may be locked out of the device.
-
The File System Check (fsck) utility is not supported in install mode.
Caveats
Caveats describe unexpected behavior in Cisco IOS-XE releases. Caveats listed as open in a prior release are carried forward to the next release as either open or resolved.
Cisco Bug Search Tool
The Cisco Bug Search Tool (BST) allows partners and customers to search for software bugs based on product, release, and keyword, and aggregates key data such as bug details, product, and version. The BST is designed to improve the effectiveness in network risk management and device troubleshooting. The tool has a provision to filter bugs based on credentials to provide external and internal bug views for the search input.
To view the details of a caveat, click on the identifier.
Open Caveats in Cisco IOS XE Gibraltar 16.11.x
Identifier |
Applicable Models |
Description |
---|---|---|
Catalyst 9500 |
usbflash1 entries are displayed multiple times in sh inventory o/p after multiple SSO |
|
Catalyst 9500 |
9500-40x :phyloop back fails for forty gig ports |
Resolved Caveats in Cisco IOS XE Gibraltar 16.11.1
Identifier |
Applicable Models |
Description |
---|---|---|
All models |
Memory leak in alloc_repexp_entry caused by alloc_ril_index failure |
|
All models |
Cat9K HA/ 16.9.x,16.10.x- Connectivity issue due to wrong dest MAC rewrite for routed packet |
|
All models |
AAL-INFRA:L2 failed to get ID handle |
|
All models |
crash in fib_path_list_walk_apply (cisco.comp/cfc_cefmpls/cef/src/fib_path_list_deps.c) |
|
Catalyst 9500 |
c9500: Far-end 10GE ports flap up-down-up when Near end switch boots |
|
Catalyst 9500 |
SNMP timeout when querying entSensorValueEntry |
|
Catalyst 9500 |
Yang Get-config shows all the pwd configured on switch instead it should show only last updated pwd |
|
Catalyst 9500 |
C9300 : %IOSXE-2-PLATFORM: Switch 1 R0/0: kernel: EXT2-fs (sda1): error: |
|
Catalyst 9500 |
RMON statistics and RMON MIB absent in cat9K |
|
Catalyst 9500 |
Configure for usb on the switch are gone after renumber the switch |
|
Catalyst 9500 |
C9500- Remote side link stays up on reload with GLC-T/QSA. |
|
Catalyst 9500 |
QSFP-40G-SR4 does not breakout in C9500-16X |
|
Catalyst 9500 High Performance |
C9500 SVL: Physical Interfaces Down on the Standby Switch |
|
Catalyst 9500 High Performance |
Memory leak in reflector.sh |
|
Catalyst 9500 High Performance |
Ports are getting into "INACTIVE state" on reload or sso on SF-SVL |
|
Catalyst 9500 High Performance |
CVR-QSFP-SFP10G V02 May get un-recognised or goes to error disabled state upon installation |
|
Catalyst 9500 High Performance |
IOSD Memory Leak in SVL |
|
Catalyst 9500 High Performance |
9500H/9600 SVL:MemLeak observed in chasync.sh |
|
Catalyst 9500 High Performance |
9500H SVL:When used 3rd party xcvrs intf not linking up and hence SVL come up as dual active |
Troubleshooting
For the most up-to-date, detailed troubleshooting information, see the Cisco TAC website at this URL:
https://www.cisco.com/en/US/support/index.html
Go to Product Support and select your product from the list or enter the name of your product. Look under Troubleshoot and Alerts, to find information for the problem that you are experiencing.
Related Documentation
Information about Cisco IOS XE at this URL: https://www.cisco.com/c/en/us/products/ios-nx-os-software/ios-xe/index.html
All support documentation for Cisco Catalyst 9500 Series Switches is at this URL: https://www.cisco.com/c/en/us/support/switches/catalyst-9500-series-switches/tsd-products-support-series-home.html
Cisco Validated Designs documents at this URL: https://www.cisco.com/go/designzone
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: http://www.cisco.com/go/mibs
Communications, Services, and Additional Information
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To receive timely, relevant information from Cisco, sign up at Cisco Profile Manager.
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To get the business impact you’re looking for with the technologies that matter, visit Cisco Services.
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To submit a service request, visit Cisco Support.
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To discover and browse secure, validated enterprise-class apps, products, solutions and services, visit Cisco Marketplace.
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To obtain general networking, training, and certification titles, visit Cisco Press.
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To find warranty information for a specific product or product family, access Cisco Warranty Finder.