[c-nsp] L2VPN between ASR920 and Juniper

Tue Sep 22 01:23:23 EDT 2015

Hi Vinod

The IOS-XE version on ASR920:

asr920-universalk9_npe.03.13.00.S.154-3.S-ext

The JunOS version on Juniper M320:

JUNOS Base OS boot [12.3R6.6]

IP address 10.234.233.29 is LDP R-ID of Juniper and IP address 10.241.252.91
is LD R-ID of Cisco ASR920. The connectivity was provided by using GRE
tunnel between two devices and static routing is used. MPLS and Label
binding is OK and I can do MPLS ping/Traceroute from both side. The case is
when I match VLAN on both sides, L2VPN is OK in control plane on both sides.

But when VLAN is different on both sides  the L2VPN connection on Juniper
side is UP but on ASR920 side is down due to VLAN rewrite mismatch.

This is the output on ASR920:

ASR920#show mpls l2transport vc detail 

Local interface: Gi0/0/4 up, line protocol up, Eth VLAN 810 up

  Destination address: 10.234.233.29, VC ID: 2631, VC status: down

    Last error: Imposition VLAN rewrite capability mismatch with peer

    Output interface: none, imposed label stack {}

    Preferred path: not configured  

    Default path: no route

    No adjacency

  Create time: 17:15:43, last status change time: 17:00:00

    Last label FSM state change time: 17:00:00

  Signaling protocol: LDP, peer 10.234.233.29:0 up

    Targeted Hello: 10.241.252.91(LDP Id) -> 10.234.233.29, LDP is UP

    Graceful restart: not configured and not enabled

    Non stop routing: not configured and not enabled

    Status TLV support (local/remote)   : enabled/not supported

      LDP route watch                   : enabled

      Label/status state machine        : remote invalid, LruRru

      Last local dataplane   status rcvd: No fault

      Last BFD dataplane     status rcvd: Not sent

      Last BFD peer monitor  status rcvd: No fault

      Last local AC  circuit status rcvd: No fault

      Last local AC  circuit status sent: DOWN PW(rx/tx faults)

      Last local PW i/f circ status rcvd: No fault

      Last local LDP TLV     status sent: No fault

      Last remote LDP TLV    status rcvd: Not sent

      Last remote LDP ADJ    status rcvd: No fault

    MPLS VC labels: local 16, remote 675874 

    Group ID: local 0, remote 0

    MTU: local 1500, remote 1500

    Remote interface description: 

    Remote VLAN id: 2631

  Sequencing: receive disabled, send disabled

  Control Word: Off (configured: autosense)

  SSO Descriptor: 10.234.233.29/2631, local label: 16

  Dataplane:

    SSM segment/switch IDs: 0/4103 (used), PWID: 1

  VC statistics:

    transit packet totals: receive 62, send 0

    transit byte totals:   receive 5704, send 0

    transit packet drops:  receive 0, seq error 0, send 0

This is the output on Juniper M320:

Legend for interface status  

Up -- operational            

Dn -- down                   

Neighbor: 10.241.252.91 

    Interface                 Type  St     Time last up          # Up trans

    xe-1/0/0.2631(vc 2631)    rmt   Up     Sep 21 16:29:58 2015           1

      Remote PE: 10.241.252.91, Negotiated control-word: No

      Incoming label: 675874, Outgoing label: 16

      Negotiated PW status TLV: No

      Local interface: xe-1/0/0.2631, Status: Up, Encapsulation: VLAN

Thank you for your help and support in this regard..

Alireza Soltanian

-----Original Message-----
From: Vinod Kumar Balasubramanyam (vinbalas) [mailto:vinbalas at cisco.com] 
Sent: Tuesday, September 22, 2015 12:10 AM
To: Alireza Soltanian <soltanian at gmail.com>; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] L2VPN between ASR920 and Juniper

Hello Alireza,

Could you please send me the complete output of "show mpls l2transport vc
detail" on asr 920 and also the equivalent out put on Juniper.

Thanks,

Vinod Kumar Balasubramanyam

ENGINEER.TECHNICAL MARKETING

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On 9/21/15, 5:19 AM, "cisco-nsp on behalf of Alireza Soltanian"

<
<mailto:cisco-nsp-bounces at puck.nether.net%20on%20behalf%20of%20soltanian at gma
il.com> cisco-nsp-bounces at puck.nether.net on behalf of soltanian at gmail.com>
wrote:

>Hi Everybody

> 

>When I try to establish L2VPN connection between ASR920 and Juniper M320,

>I

>have this output on ASR920:

> 

> 

> 

>ASR920#show mpls l2transport vc detail

> 

>Local interface: Gi0/0/4 up, line protocol up, Eth VLAN 810 up

> 

>  Destination address: 10.234.233.29, VC ID: 2631, VC status: down

> 

>    Last error: Imposition VLAN rewrite capability mismatch with peer

> 

> 

> 

>I am using different VLANs on both side:

> 

>ASR920: VLAN 810

> 

>Juniper M320: VLAN 2631

> 

> 

> 

>This is configuration on ASR side:

> 

> 

> 

>interface GigabitEthernet0/0/4

> 

>no ip address

> 

>media-type auto-select

> 

>negotiation auto

> 

>service instance 1 ethernet

> 

>  encapsulation dot1q 810

> 

>  rewrite ingress tag pop 1 symmetric

> 

>  xconnect 10.234.233.29 2631 encapsulation mpls

> 

> 

> 

>this is configuration on Juniper M320

> 

> 

> 

>set interfaces xe-1/0/0 unit 2631 encapsulation vlan-ccc

> 

>set interfaces xe-1/0/0 unit 2631 vlan-tags outer 3012

> 

>set interfaces xe-1/0/0 unit 2631 vlan-tags inner 2631

> 

>set interfaces xe-1/0/0 unit 2631 input-vlan-map pop

> 

>set interfaces xe-1/0/0 unit 2631 output-vlan-map push

> 

> 

> 

>set protocols l2circuit neighbor 10.241.252.91 interface xe-1/0/0.2631

>virtual-circuit-id 2631

> 

>set protocols l2circuit neighbor 10.241.252.91 interface xe-1/0/0.2631

>no-control-word

> 

>set protocols l2circuit neighbor 10.241.252.91 interface xe-1/0/0.2631 mtu

>1500

> 

> 

> 

>Do you have any idea what is the issue?

> 

> 

> 

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