[c-nsp] ASR 901 MPLS issues

[Bryan Tabb]

Hey Jerry

On our asr920's we use service instances to match the specific vlans.  Can't recall exact reason but there was something with ge0/1.subinterface not behaving the same as the asr1ks.

E.g.

interface GigabitEthernet0/0/0
!
 service instance 49 ethernet
   encapsulation dot1q 2
  xconnect 10.0.0.1 49 encapsulation mpls pw-class pw-l2vpn-encap-mpls
   mtu 1550
 !

Cheers

Bryan

-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Jerry Bacon
Sent: Friday, 26 January 2018 11:11 AM
To: 'Cisco-nsp List' <cisco-nsp at puck.nether.net>
Subject: [c-nsp] ASR 901 MPLS issues

I'm trying to get an ASR 901 (IOS 15.4(2)S1) to do simple EoMPLS with a
6500 (IOS 15.1(2)SY).

A port level xconnect works just fine. However, when I try to do a VLAN xconnect, I only get traffic (actually just MACs) in one direction, from the ASR to the 6500. It doesn't appear that I get anything back at all, even though the xconnect comes up and all looks normal there. Any ideas?

6500

interface GigabitEthernet2/1
  description to switch 2 (handoff)
  switchport
  switchport trunk encapsulation dot1q
  switchport trunk allowed vlan none
  switchport mode trunk
  switchport nonegotiate
  mtu 9216

interface GigabitEthernet2/1.100
  description vlan100
  encapsulation dot1Q 100
  xconnect 10.100.102.1 100 encapsulation mpls

new_switch#sh xcon all
Legend:    XC ST=Xconnect State  S1=Segment1 State  S2=Segment2 State
   UP=Up       DN=Down            AD=Admin Down      IA=Inactive
   SB=Standby  RV=Recovering      NH=No Hardware

XC ST  Segment 1                         S1 Segment
2                         S2
------+---------------------------------+--+---------------------------------+--
UP     ac   Gi2/1.100:100(Eth VLAN)      UP mpls
10.100.102.1:100             UP

ASR 901

interface GigabitEthernet0/0
  description trunk in
  no ip address
  negotiation auto
  cdp enable
  service instance 1 ethernet
   description test1
   encapsulation dot1q 100
   xconnect 10.100.101.1 100 encapsulation mpls
    mtu 9216

new_router#sh xcon all
Legend:    XC ST=Xconnect State  S1=Segment1 State S2=Segment2 State
   UP=Up       DN=Down            AD=Admin Down IA=Inactive
   SB=Standby  HS=Hot Standby     RV=Recovering      NH=No Hardware

XC ST  Segment 1                         S1 Segment
2                         S2
------+---------------------------------+--+---------------------------------+--
UP pri   ac Gi0/0:100(Eth VLAN)          UP mpls
10.100.101.1:100             UP

-- 

Jerry Bacon
Senior Network Engineer
StarTouch, Inc.
http://www.startouch.com
360-543-5679 ext. 111
Microwave - Fiber Optics - Internet Services

_______________________________________________
cisco-nsp mailing list  cisco-nsp at puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/