8K EFPs are supported across RSP3-400 and 4K EFPs on RSP3-200.

Note	If Split-horizon configuration does not exist, number of EFPs supported are reduced to 4K EFPs.

Note	Port-channel scale is half the regular scale of the EFP.

interface GigabitEthernet0/2/2
service instance 1 ethernet
  encapsulation dot1q 100
  bridge-domain 100 split-horizon group 0 	 When you configure split-horizon group 0,(0 is optional)
 
 interface GigabitEthernet0/2/2
service instance 2 ethernet
  encapsulation dot1q 102
  bridge-domain 102 split-horizon group 1	 When you configure split-horizon group 1

• In default model, 5000 EFPs can be configured on Cisco ASR 903 RSP3 module.

• The Switch Database Management (SDM) template feature can be used to configure 8000 EFPs across ASIC( 4000 EFPs per ASIC interfaces).

• In 8K EFP model, each EFP consumes four Egress queues. If 8K EFP SDM template is not enabled, each EFP consumes eight Egress queues.

• Ingress policy map can specify more than eight traffic classes based on PHB matches, which remains the same. However, Egress policy map can have three user defined class and class-default class.

• Each Egress class-maps can be mapped to a single or multiple traffic classes and each class-map mapped to a single queue.

• Maximum of two queues are set to Priority according to policy configuration.

• All the existing QOS restrictions that apply in default model are also applicable to 8K EFP model.

Below is the sample configuration to enable 8K EFP or 4 Queue mode template. On enabling sdm prefer enable_8k_efp , the router reloads and boots up with 8K EFP template.

RSP3-903(config)#sdm prefer enable_8k_efp

Template configuration has been modified. Save config and Reload? [yes/no]: yes
Building configuration...

Jul 22 05:58:30.774 IST: Changes to the EFP template preferences have been stored[OK]
Proceeding with system reload...
Reload scheduled for 06:00:38 IST Fri Jul 22 2016 (in 2 minutes) by console
Reload reason: EFP template change

You can verify the current template as below.

Device#sh sdm prefer current

The current sdm template is "default" template and efp template is "enable_8k_efp" template

Below is sample configuration to configure egress policy map when 4Q mode is enabled.

Device#enable
Device#configure terminal
Device(config)#interface GigabitEthernet0/3/0
Device(config-if)#service instance 10 e
Device(config-if-srv)#service-policy output egress

Current configuration : 193 bytes
!
policy-map egress
class qos2
  shape average 2000000   
 class qos3
  shape average 3000000   
 class qos4
  shape average 4000000   
 class class-default
  shape average 5000000   
!
end

Device#sh run class-map qos2
Building configuration...

Current configuration : 54 bytes
!
class-map match-all qos2
match qos-group 2
!
end

Device#sh run class-map qos3
Building configuration...

Current configuration : 54 bytes
!
class-map match-all qos3
match qos-group 3
!
end

Device#sh run class-map qos4
Building configuration...

Current configuration : 54 bytes
!
class-map match-all qos4
match qos-group 4
!
end

To configure 16K EFP on port channel, use the following commands:

router>enable
router#configure terminal
router(config)#sdm prefer enable_portchannel_qos_multiple_active
router(config)#platform port-channel 10 members-asic-id 1
router(config)#platform qos-port-channel_multiple_active port-channel 10
router(config)#interface port-channel 10
router(config-if)#end

After the SDM template update, the device reloads automatically and you need to enter yes to save the configuration.

The following table lists the protocols supported on Control Plane Policing feature.

A router is automatically enabled to silently discard packets when you configure input policing on control plane traffic using the service-policy input policy-map-name command.

Rate-limiting (policing) of input traffic from the control plane is performed in silent mode. In silent mode, a router that is running Cisco IOS XE software operates without receiving any system messages. If a packet that is entering the control plane is discarded for input policing, you do not receive an error message.

• This feature facilitates increased bandwidth.

• The feature supports load balancing.

• This features allows support on QoS on Port Channel with one or more active member links.

• Policy-map on member links is not supported.

• 100G ports and 40G ports cannot be a part of the port channel.

• Total number of port channel bandwidth supported on a given ASIC should not exceed 80G.

• This feature is not supported on multicast traffic.

• Only 3k service instance (EFP) scale is supported on port channel active active.

• Ensure that 2-3 seconds of delay is maintained before and after unconfiguring and re-configuring the port channel with the platform qos-port-channel_multiple_active command.

  Note	This delay increases when you have scaled EVC configurations on the port channel.

Enabling Port Channel Active/Active

Use the following commands to enable port channel active active:

enable
configure terminal
sdm prefer enable_portchannel_qos_multiple_active
end

Note	The device restarts after enabling the sdm prefer enable_portchannel_qos_multiple_active command. After a successful reboot, verify the configuration using the command show sdm prefer current

Disabling Port Channel Active/Active

enable
configure terminal
sdm prefer disable_portchannel_qos_multiple_active
end

Configuring Active Active Port Channel per bundle

Use the following commands to configure active active port channel per bundle:

enable
configure terminal
platform qos-port-channel_multiple_active 10
end

Creating Port Channel Interface

Use the following commands to configure the port channel interface:

enable
configure terminal
interface port-channel 10
no shutdown
end

Attaching member link to port channel

Use the following commands to attach a member link to the port channel:

enable
configure terminal
interface Te0/4/0
channel-group 10 mode active
end 

Configuring QoS Class Map and Policy Map

Use the following commands to configure QoS class map and policy map:

enable
configure terminal
class-map match-any qos1
match qos-group 1
class-map match-any qos2
match qos-group 2
policy-map policymapqos
class qos1
shape average 10000 k
class qos2
shape average 20000 k
end

Attaching Configured Policy Map (policymapqos) on Port Channel Interface on Egress Direction

Use the following commands to attach the configured policy map (policymapqos) on the port channel interface on egress direction:

enable
configure terminal
interface port-channel 10
service-policy output policymapqos
end

Class-map match-any dscp
Match dscp af13
exit
policy-map matchdscp
Class dscp
Police cir 1000000end