- EIGRP
- IPv6 Routing: EIGRP Support
- EIGRP MIB
- EIGRP MPLS VPN PE-CE Site of Origin
- EIGRP Nonstop Forwarding Awareness
- EIGRP Nonstop Forwarding
- EIGRP IPv6 NSF/GR
- EIGRP Prefix Limit Support
- EIGRP Support for Route Map Filtering
- EIGRP Route Tag Enhancements
- BFD Support for EIGRP IPv6
- EIGRP Loop-Free Alternate Fast Reroute
- Add Path Support in EIGRP
- EIGRP Wide Metrics
- EIGRP/SAF HMAC-SHA-256 Authentication
- IP EIGRP Route Authentication
- EIGRP IPv6 VRF-Lite
- EIGRP Stub Routing
- EIGRP Support for 6PE/6VPE
- EIGRP Over the Top
- EIGRP OTP VRF Support
- EIGRP Classic to Named Mode Conversion
- EIGRP Scale for DMVPN
- EIGRP IWAN Simplification
EIGRP IWAN Simplification
EIGRP is widely deployed on DMVPN networks. The EIGRP IWAN Simplification feature implements stub site behavior for EIGRP deployed on DMVPN networks.
- Finding Feature Information
- Information About EIGRP IWAN Simplification
- How to Configure EIGRP IWAN Simplification
- Configuration Examples for EIGRP IWAN Simplification
- Additional References for EIGRP IWAN Simplification
- Feature Information for EIGRP IWAN Simplification
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Information About EIGRP IWAN Simplification
Stub Site ID Configuration
The EIGRP Stub Routing feature improves network stability, reduces resource utilization, and simplifies the stub device configuration on the spoke. EIGRP Stub routing is commonly used over DMVPN networks having multiple sites with single device in each site. Site devices acting as stub result in reducing the query domain thereby enhancing improved performance. On the other hand, branch EIGRP routing is simple for a single router default-gateway site. When a the branch adds a second router or becomes larger and needs routing within the campus the configuration becomes complex.
The EIGRP IWAN Simplification feature implements stub site behavior on devices that are connected to the WAN interfaces on branch routing via the configuration of stub site ID on EIGRP address family. Use the eigrp stub-site command in the address family configuration mode. The stub site ID is applied to all incoming routes on WAN interfaces.
Note | The eigrp stub-site command is mutually exclusive with the eigrp stub command. You cannot execute both commands on a device. This eigrp stub-site command resets the peers on WAN interfaces and initiates relearning of routes from WAN neighbors. |
Interfaces connected towards hub or WAN are identified so that routes learnt through neighbors on such interfaces are part of a list of a given route. This is achieved via the stub-site wan-interface command configured in the address family interface configuration mode.
Note | On the identified interfaces, neighbors treat WAN interfaces as stub. |
How to Configure EIGRP IWAN Simplification
Configuring the Stub Site ID
1.
enable
2.
configure
terminal
3.
router
eigrp
virtual-instance-name
4.
Enter one of the
following:
5.
network
ip-address
[wildcard-mask]
6.
eigrp stub-site
7.
af-interface {default |
interface-type
interface-number}
8.
stub-site wan-interface
9.
end
10.
show ip eigrp vrf
vrf-name
topology [ip-address
[mask]]
DETAILED STEPS
The following is a sample output from the show ip eigrp vrf topology command
Device# show ip eigrp vrf vrf1 topology 109.1.0.6/32 EIGRP-IPv4 Topology Entry for AS(1)/ID(109.1.0.2) VRF(vrf1) EIGRP-IPv4(1): Topology base(0) entry for 109.1.0.6/32 State is Passive, Query origin flag is 1, 1 Successor(s), FD is 2713600 Descriptor Blocks: 104.1.1.58 (Tunnel1), from 104.1.1.1, Send flag is 0x0 Composite metric is (2713600/1408256), route is Internal Vector metric: Minimum bandwidth is 100000 Kbit Total delay is 105000 microseconds Reliability is 255/255 Load is 1/255 Minimum MTU is 200 Hop count is 2 Originating router is 109.1.0.6 Extended Community: StubSite:101:100
Configuration Examples for EIGRP IWAN Simplification
Example: Configuring the Stub Site ID
Device> enable Device# configure terminal Device(config)# router eigrp virtual-name1 Device(config-router)# address-family ipv4 autonomous-system 45000 Device(config-router-af)# network 172.16.0.0 Device(config-router-af)# eigrp stub-site 101:100 Device(config-router-af)# af-interface gigabitethernet 0/0/1 Device(config-router-af-interface)# stub-site wan-interface Device(config-router-af-interface)# end
Additional References for EIGRP IWAN Simplification
Related Documents
Related Topic |
Document Title |
---|---|
Cisco IOS commands |
|
EIGRP commands |
Technical Assistance
Description |
Link |
---|---|
The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password. |
Feature Information for EIGRP IWAN Simplification
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Feature Name |
Releases |
Feature Information |
---|---|---|
EIGRP IWAN Simplification |
Cisco IOS XE Release 3.16S |
EIGRP is widely deployed on DMVPN networks. The EIGRP IWAN Simplification feature implements stub site behavior for EIGRP deployed on DMVPN networks. The following commands were introduced by this feature: eigrp stub-site, stub-site wan-interface, show ip eigrp. |