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Tunnel the layer 2 protocol in VPLS

yitung
Cisco Employee
Cisco Employee

Hi,

I'm doing a VPLS PoC using ASR9006.

SW1 (trunk) ----- ASR9K (R1) -------- ASR9K(R2) ------ (trunk) SW2

I found that I have to bridge the untag EFP in order to get CDP/UDLD pass thru.

I read the L2PT document (http://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k_r5-3/lxvpn/configuration/guide/b-l2vpn-cg53xasr9k/b-l2vpn-cg53xasr9k_chapter_011.html)

I put the "l2protocol cpsv tunnel" in customer facing interface. However, it doesn't tunnel the CDP traffic. May I know if I make any mistake??

I'm using v5.3.2

SW1:

interface GigabitEthernet0/3
 switchport trunk allowed vlan 369
 switchport mode trunk
 udld port
 channel-group 1 mode active
end

R1:

interface GigabitEthernet0/0/0/0.369 l2transport
 description VPLS-Single-Vlan (connect to Gi0/3)
 encapsulation dot1q 369
 rewrite ingress tag pop 1 symmetric
 l2protocol cpsv tunnel

l2vpn
 bridge group group369
  bridge-domain vpls-singlevlan-transp
   transport-mode vlan passthrough
   interface GigabitEthernet0/0/0/0.369
   !
   vfi 369
    vpn-id 369
    autodiscovery bgp
     rd 65000:369
     route-target 65000:369
     signaling-protocol ldp
     !

R2:

RP/0/RSP0/CPU0:asr9001-2#show run int gigabitEthernet 0/0/0/0.369
Thu Jan 21 19:06:37.687 UTC
interface GigabitEthernet0/0/0/0.369 l2transport
 description VPLS-Single-Vlan (connect to Gi0/3)
 encapsulation dot1q 369
 rewrite ingress tag pop 1 symmetric
 l2protocol cpsv tunnel
!

RP/0/RSP0/CPU0:asr9001-2#show run l2vpn br gr group369
Thu Jan 21 19:06:45.476 UTC
l2vpn
 bridge group group369
  bridge-domain vpls-singlevlan-transp
   transport-mode vlan passthrough
   interface GigabitEthernet0/0/0/0.369
   !
   vfi 369
    vpn-id 369
    autodiscovery bgp
     rd 65000:369
     route-target 65000:369
     signaling-protocol ldp
     !

SW2:

interface GigabitEthernet0/3
 switchport trunk allowed vlan 369
 switchport mode trunk
 udld port
 channel-group 1 mode active
end

1 Reply 1

Philip D'Ath
VIP Alumni
VIP Alumni