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New Member

MPLS l2VPN

Hi to all,

I'm trying to establish IP conn ectivity between two 'SVI' interfaces on PE-7606 and PE- ASR9000.

I configured xconnect betwwen them and it works, everything is up.

How can I configure interface with IP on ASR so I can ping svi on 7606? I know that ASR9000 does not suport classic svi (interface vlan 2345)

7606:

!

interface vlan 234

ip add 192.168.1.2 255.255.255.252

!

ASR:

l2vpn
 pw-class PW-CLASS
  encapsulation mpls
   protocol ldp
   ipv4 source 1.1.1.1
  !
 !
 xconnect group XCONNECT
  p2p ASR-TO-7606
   interface GigabitEthernet0/0/1/0.2345
   neighbor ipv4 2.2.2.2 pw-id 2345
    pw-class PW-CLASS

!

sh l2vpn xconnect

Legend: ST = State, UP = Up, DN = Down, AD = Admin Down, UR = Unresolved,
        SB = Standby, SR = Standby Ready, (PP) = Partially Programmed

XConnect                   Segment 1                       Segment 2
Group      Name       ST   Description            ST       Description            ST
------------------------   -----------------------------   -----------------------------
XCONNECT   ASR-TO-7606
                      UP   Gi0/0/1/0.2345         UP       2.2.2.2  2345   UP
----------------------------------------------------------------------------------------

Regards,

Nenad

 

 

 

 

6 REPLIES
Cisco Employee

 Are you trying to configure

 

Are you trying to configure xconnect and svi on same node. If xconnect is configured on GigabitEthernet0/0/1/0.2345 of ASR9k, what is device connectec to GigabitEthernet0/0/1/0.2345. On that CE device you need to configure the ip address

 

Regards,

Akash

New Member

Yes, on the same node. Gi0/0

Yes, on the same node. Gi0/0/1/0.2345 is interface toward MPLS cloud. It works fine on IOS, two svi on two PE routers with xconnect between them. In this case SVI is like CE, just for testing.

Thanks,

Nenad

Cisco Employee

Hi Nenad, I dont think

Hi Nenad,

 

I dont think configuration is supported what you are saying. Interface where you have configured xconnect can not be mpls core facing interface. It should be CE facing interface. To send packet over l2vpn, packet should be received on the attachment circuit and then after label imposition, labeled packet will go towards mpls core.

 

Topology should be as below

CE1----(xconnect)PE1----mpls core-------PE2(xconnect)----CE2

 

Can you please share complete config which is working fine with IOS routers when SVI and xconnect configured on same router?

 

Regards,

Akash

 

 

New Member

Hi Akash,my mistake, you're

Hi Akash,

my mistake, you're right.

PE1:

interface Vlan2345
 ip address 192.168.234.1 255.255.255.252  (on PE2--- 234.2)

!

interface GigabitEthernet7/10

service instance 2345 ethernet
  encapsulation dot1q 2345
  rewrite ingress tag pop 1 symmetric
  xconnect 1.1.1.1. 2345 encapsulation mpls
   mtu 1500

!

Same on the PE2. I have physical connections between ES+20 and switching card on PE1/PE2 routers. So, basically this is CE facing interface, as you said.

 

BR

 

Nenad

 

 

 

Cisco Employee

 Yeah this seems correct. So

 

Yeah this seems correct. So do you have any further queries on this topology. Ping between 192.168.234.1 and 192.168.234.2 is not involving L2VPN circuit.

 

-- Kindly rate helpful posts and do mark post as answered if query is properly answered --

Regards,

Akash

New Member

No, that's all. It works now

No, that's all. It works now on ASR. Thanks.

BS

Nenad

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