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Pseudowire Headend support on ASR 9001

decode.chr13
Level 1
Level 1

Do you know if PWHE is supported on ASR 9001 platform?


Documentation says that PWHE is supported on Typhoon linecard, Service Edge optimized.
ASR 9001 is Typhoon linecard, but I don't know if it is also SE optimized.

 

I have the following diagram:

CPE01 ----- PE01 ---(te0/0/2/1)-- ASR9001
                       |
                    PE02 ---- CPE02

 

I configured 2 PWHE on ASR9001 and everything is ok, except the fact that the traffic does not pass thru the router.

 

l2vpn
router-id 10.20.99.1
pw-grouping
!
pw-class pwhe-class
encapsulation mpls
ipv4 source 10.20.99.1
!
xconnect group test-pwhe
p2p segment-01
interface PW-Ether1202
neighbor ipv4 10.20.72.1 pw-id 201202
pw-class pwhe-class
!
description segment-01
!
xconnect group test-pwhe
p2p segment-02
interface PW-Ether1001
neighbor ipv4 10.20.99.11 pw-id 1001
pw-class pwhe-class
!
description segment-02
!
!
interface PW-Ether1202
mtu 9114
load-interval 30
attach generic-interface-list gil-20
l2overhead 20
!
interface PW-Ether1202.24
vrf test
ipv4 address 10.9.1.1 255.255.255.252
load-interval 30
encapsulation dot1q 1202 second-dot1q 24
!
interface PW-Ether1001
vrf test
ipv4 address 10.1.1.1 255.255.255.252
load-interval 30
mtu 9114
load-interval 30
attach generic-interface-list gil-20
l2overhead 20
!
generic-interface-list gil-20
interface TenGigE0/0/2/1
end

 

ASR9001 must be a service edge node, terminating L3 services.

 

This works:
1) CPE01 pings ASR9001
2) CPE02 pings ASR9001

 

This doesn't work: CPE01 pings CPE02.

 

I tried to configure the same setup with VFI and routed BVI interface and everything works as expected.

 

Did I miss anything or PWHE is not supported on ASR9001?

 

Thanks

2 Replies 2

decode.chr13
Level 1
Level 1

Found this link:

https://www.cisco.com/c/en/us/support/docs/routers/asr-9000-series-aggregation-services-routers/200135-Aggregation-Services-Router-9001-ASR-90.html

 

Q. What is the Architecture and Performance of ASR-9001?

The ASR-9001 system is built around the same forwarding engine and switch fabric complex as the other ASR-9000 linecards and systems.  Most importantly, this means that the system will have identical feature support as the other platforms in ASR-9000 series devices.  The Network Processors (NPs) and memories are sized to be equivalent to the Services Edge ("SE") linecards, so all of the ports (both fixed and via MPA) on the system are capable of full Hierarchical Quality of Service (H-QoS) and other SE features.

 

I'm probably missing something...?

decode.chr13
Level 1
Level 1

After some investigations I found out that IPv4 is not enabled on the interface or card...

 

#show cef vrf test ipv4 interface

 

PW-Ether1202.24 is up if_handle 0x00000260 if_type IFT_VLAN_SUBIF(0x19)

     idb info 0x9d17349c flags 0x48101 ext 0x9d3673f0 flags 0x0

     Vrf Local Info (0x9e52e290)

  Interface last modified Dec 26, 2017 00:01:43, modify

  Reference count 1       Next-Hop Count 3

  Protocol Reference count 2

  Protocol ipv4 not configured or enabled on this card

  Primary IPV4 local address 10.9.1.1/32

PW-Ether1001 is up if_handle 0x000002a0 if_type IFT_PW_ETHER(0x52)

     idb info 0x9d173544 flags 0x48101 ext 0x9d367878 flags 0x0

     Vrf Local Info (0x9e52e320)

  Interface last modified Dec 26, 2017 00:04:38, modify

  Reference count 1       Next-Hop Count 4

  Protocol Reference count 2

  Protocol ipv4 not configured or enabled on this card

  Primary IPV4 local address 10.1.1.1/32

 

All other interfaces are ok (Ten x/x/x/x or Loopback).

Any help would be appreciated.

 

Thanks

 

 

[EDIT]

Found out that the correct show command must include location:

#show cef vrf test ipv4 interface location 0/0/CPU0

 

It shows correct information now, but still not forwarding traffic :-(