[c-nsp] MPLS routed pseudowire between ASR9k and 7600 with LAN cards

[Adam Vitkovsky]

> XCL2 Failed to find session for peer 192.168.0.2, vcid 555
-not sure what you mean by that please. Do you mean the targeted LDP session
was not formed?
 Does the ASR shows that the targeted LDP session is up please?

adam
-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Aivars
Sent: Tuesday, February 26, 2013 9:18 AM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] MPLS routed pseudowire between ASR9k and 7600 with LAN
cards

Just a little additional information.

Debug on 7600 shows:

XCL2 Failed to find session for peer 192.168.0.2, vcid 555

ASR is running 4.3.0 and 7600 122-33.SRE7a.

So far I have not succeeded to bring up a working remote L2VPN session on
ASR (also without L3 interface). Even if it shows up at both ends, it does
not mean that it is working.


 Aivars

> Hi,

>  

> There is a need to extend L2 connections from an existing 7600 with 
> LAN cards to a new ASR9001 and configure IP address on that connection.

>  

> If we look for link redundancy and rule out conventional switching and 
> spanning tree, to my understanding this looks something like "Pseudowire
Headend".

>  

>  

> ASR9k:

> l2vpn

> xconnect group test

> p2p test

> interface PW-Ether555

>  neighbor 192.168.0.1 pw-id 555

>  

> interface PW-Ether555

> mtu 9216

> vrf MGMT

> ipv4 address 172.30.2.1 255.255.255.252

> attach generic-interface-list test

>  

> generic-interface-list test

> interface Bundle-Ether1

> interface TenGigE0/0/0/1

>  

> 7600:

> interface TenGigabitEthernet3/4.555

> encapsulation dot1Q 555

>  xconnect 192.168.0.2 555 encapsulation mpls

> mtu 9202

>  

> The problem here is that ASR thinks that everything is fine:

>  

> Group test, XC test, state is up; Interworking none

> AC: PW-Ether555, state is up

> Type PW-Ether

> Interface-list: test

> Replicate status:

> Te0/0/0/1: success

> BE1: success

> MTU 9202; interworking none

> Internal label: 16020

> Statistics:

> packets: received 0, sent 60

> bytes: received 0, sent 2532

> PW: neighbor

> 192.168.0.1

> , PW ID 555, state is up ( established )

> PW class not set, XC ID 0xc0000001

> Encapsulation MPLS, protocol LDP

> Source address 172.30.0.2

> PW type Ethernet, control word disabled, interworking none

> PW backup disable delay 0 sec

> Sequencing not set

>  

> PW Status TLV in use

> MPLS Local Remote

> ------------ ------------------------------ 
> -----------------------------

> Label 16021 45

> Group ID 0x160 0x0

> Interface PW-Ether555 unknown

> MTU 9202 9202

> Control word disabled disabled

> PW type Ethernet Ethernet

> VCCV CV type 0x2 0x2

> (LSP ping verification) (LSP ping verification)

> VCCV CC type 0x6 0x6

> (router alert label) (router alert label)

> (TTL expiry) (TTL expiry)

> ------------ ------------------------------ 
> -----------------------------

> Incoming Status (PW Status TLV):

> Status code: 0x0 (Up) in Notification message

> Outgoing Status (PW Status TLV):

> Status code: 0x0 (Up) in Notification message

> MIB cpwVcIndex: 3221225473

> Create time: 19/02/2013 08:51:23 (07:59:29 ago)

> Last time status changed: 19/02/2013 16:50:00 (00:00:52 ago)

> Last time PW went down: 19/02/2013 09:05:10 (07:45:42 ago)

> Statistics:

> packets: received 0, sent 60

> bytes: received 0, sent 2532

>  

> However at the same time 7600 is unhappy:

>  

> BIP-STO1#sh xconnect int te3/4.555 detail

> Legend: XC ST=Xconnect State S1=Segment1 State S2=Segment2 State

> UP=Up DN=Down AD=Admin Down IA=Inactive

> SB=Standby HS=Hot Standby RV=Recovering NH=No Hardware

>  

> XC ST Segment 1 S1 Segment 2 S2

>
------+---------------------------------+--+--------------------------------
-+--

> DN ac Te3/4.555:555(Eth VLAN) UP mpls 192.168.0.2:555 DN

> Interworking: ethernet Local VC label 45

> Remote VC label 16021

>  

> What am I missing here? Is this even the right approach to reach the goal?

>  

> I succeeded in a similar task where there was HP 5800 at the other end 
> of L2 circuit. I used bridge domain, VPLS and BVI interface in that 
> case. Unfortunately VPLS is not an option for 7600 with LAN cards.

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