Routing
Routing

MPLS tag on E320 !

‎03-12-2012 08:44 PM

Hi all, 

 

I have topology like this :

 

E320 ------------ P1 (MX)----------------Internet router (MX)

 

E320 provides PPPoE service for customers, P1's running IGP, MPLS only, Internet router's peering with international ISP. I enabled ISIS, MPLS on 3 devices, E320's peering iBGP with Internet router and receiving full routes from Internet router. 

 

the download traffic from E320, Internet router tag MPLS label and push to P1 and P1 push to E320, but the upload traffic from E320, E320 does not tag MPLS label and push to P1 only IPv4 packet . I checked this by using : "show ip bgp ipv4 unicast fields out-label", and the output like this : 

 

E320-1#show ip bgp ipv4 unicast fields out-label
Prefix Out-label
1.52.0.0/14 none
1.52.0.0/18 none
1.52.0.0/20 none
1.52.16.0/20 none
1.52.32.0/20 none
1.52.48.0/20 none
1.52.64.0/18 none
1.52.64.0/20 none
1.52.80.0/20 none

 

/////////////////////////////////////////////////////////////////////

 

MPLS config on E320 like this :

 

mpls ldp
mpls ldp interface profile default

 

interface tenGigabitEthernet 2/0/0
ip description "Connect to P1"
ip address x.x.x.x 255.255.255.252
ip router isis 100
isis circuit-type level-2-only
mpls
mpls ldp
!

 

/////////////////////////////////////////////

 

Did I miss some MPLS option configuration ? how to configure, so E320 can tag MPLS label and push to P1 ? 

 

Thanks so much !