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NCS540 qinq with pseudowire

sphere365
Level 1
Level 1

Hi Team,

 

I'm having a problem for a few days now which is giving me a headache at this point.

We have a scenario where a customer is going to have an Inet access + l2vpn all delivered via CPE asr920.

PE is ncs540 which will build a connection to other PE in the network.

Customer handoff will be over two ports on the asr - one will be tagged Inet access and the second one (for l2vpn) will be untagged (from their perspective) - so plain ethernet service where they will manage vlan's to other ends of the l2vpn

The thing that we had in mind is to do qinq between ncs and asr where one vlan will carry inet and the second will carry out VPN traffic

ASR setup

!
interface TenGigabitEthernet0/0/2
 description CUSTOMER_INET-ACCESS
 mtu 9216
 service instance 1 ethernet
  encapsulation dot1q 555
  bridge-domain 555
 !
interface TenGigabitEthernet0/0/3
 description CUSTOMER_VPN-ACCESS
 mtu 9216
 service instance 2 ethernet
  encapsulation dot1q any
  bridge-domain 556
 !
interface TenGigabitEthernet0/0/5
 description UPLINK
 mtu 9216
 service instance 3 ethernet
  encapsulation dot1q 555
  rewrite ingress tag pop 1 symmetric
  bridge-domain 555
 !
 service instance 4 ethernet
  encapsulation dot1q 556
  rewrite ingress tag pop 1 symmetric
  bridge-domain 556
!

On the other side, NCS side, this is the setup

 

!
interface Te0/0/0/10.556 l2transport
 encapsulation dot1q 556 second-dot1q any 
 mtu 2014
!
l2vpn
!
 bridge group BG_PW_TEST
  bridge-domain BD556
   interface Te0/0/0/10.556
   !
   neighbor 10.32.0.2 pw-id 556
   !
!
RP/0/RP0/CPU0#sho l2vpn bridge-domain bd-name BD556 pw-id 556 detail
Tue Jul 21 17:37:38.015 PDT
Legend: pp = Partially Programmed.
Bridge group: BG_PW_TEST, bridge-domain: BD556, id: 1, state: up, ShgId: 0, MSTi: 0
  Coupled state: disabled
  VINE state: Default
  MAC learning: enabled
  MAC withdraw: disabled
  Flooding:
    Broadcast & Multicast: enabled
    Unknown unicast: enabled
  MAC aging time: 300 s, Type: inactivity
  MAC limit: 32000, Action: none, Notification: syslog
  MAC limit reached: no, threshold: 75%
  MAC port down flush: enabled
  MAC Secure: disabled, Logging: disabled
  Split Horizon Group: none
  Dynamic ARP Inspection: disabled, Logging: disabled
  IP Source Guard: disabled, Logging: disabled
  DHCPv4 Snooping: disabled
  DHCPv4 Snooping profile: none
  IGMP Snooping: disabled
  IGMP Snooping profile: none
  MLD Snooping profile: none
  Storm Control: disabled
  Bridge MTU: 2000
  MIB cvplsConfigIndex: 2
  Filter MAC addresses:
  P2MP PW: disabled
  Create time: 21/07/2020 16:29:22 (01:08:15 ago)
  No status change since creation
  ACs: 1 (1 up), VFIs: 0, PWs: 1 (1 up), PBBs: 0 (0 up), VNIs: 0 (0 up)
  List of Access PWs:
    PW: neighbor 10.10.10.2, PW ID 556, state is up ( established )
      PW class not set, XC ID 0xc0000003
      Encapsulation MPLS, protocol LDP
      Source address 10.10.202.12
      PW type Ethernet, control word disabled, interworking none
      PW backup disable delay 0 sec
      Sequencing not set
      LSP : Up

        MPLS         Local                          Remote
        ------------ ------------------------------ ---------------------------
        Label        64090                          26137
        Group ID     0x1                            0x0
        Interface    Access PW                      unknown
        MTU          2000                           2000
        Control word disabled                       disabled
        PW type      Ethernet                       Ethernet
        VCCV CV type 0x2                            0x0
                                                    (none)
                     (LSP ping verification)
        VCCV CC type 0x6                            0x0
                                                    (none)
                     (router alert label)
                     (TTL expiry)
        ------------ ------------------------------ ---------------------------
      MIB cpwVcIndex: 3221225475
      Create time: 21/07/2020 16:50:22 (00:47:16 ago)
      Last time status changed: 21/07/2020 16:50:24 (00:47:14 ago)
      MAC withdraw messages: sent 0, received 0
      Forward-class: 0
      Static MAC addresses:
      Statistics:
        packets: received 0 (unicast 0), sent 0
        bytes: received 0 (unicast 0), sent 0
        MAC move: 0
      Storm control drop counters:
        packets: broadcast 0, multicast 0, unknown unicast 0
        bytes: broadcast 0, multicast 0, unknown unicast 0
      MAC learning: enabled
      Flooding:
        Broadcast & Multicast: enabled
        Unknown unicast: enabled
      MAC aging time: 300 s, Type: inactivity
      MAC limit: 32000, Action: none, Notification: syslog
      MAC limit reached: no, threshold: 75%
      MAC port down flush: enabled
      MAC Secure: disabled, Logging: disabled
      Split Horizon Group: none
      DHCPv4 Snooping: disabled
      DHCPv4 Snooping profile: none
      IGMP Snooping: disabled
      IGMP Snooping profile: none
      MLD Snooping profile: none
      Storm Control: bridge-domain policer
  List of VFIs:
  List of Access VFIs:

Maybe this is just sanity check - but I'd to ask.

 

Appreciate all your comments!

 

Cheers

 

 

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