Xconnect on SVI interface cisco 888ea

[extremal.v]

Hello everyone! 

I'm trying to configure xconnect l2tpv3 between c2811 and c888ea. 

c2811 configuration:

pseudowire-class Tun1300

    encapsulation l2tpv3

    ip local interface loopback0

interface FastEthernet0/0.1300

    encapsulation dot1q 1300

    xconnect 10.10.10.2 1300 encapsulation l2tpv3 pw-class Tun1300

And the xconnect status is DN, S1 is UP and S2 is DN.

c888ea configuration is

pseudowire-class Tun1300

   encapsulation l2tpv3

    ip local interface vlan10

interface vlan 1300

   no ip add

    xconnect 10.10.10.1 1300 encapsulation l2tpv3 pw-class Tun1300

SVI 1300 status is UP.

SVI 10 is UP. It's a management vlan.

One of the physical interfaces has vlan 1300 as a part of the trunk. And it's UP.

But the status of the xconnect is DN, S1 is DN, S2 is DN.

The funny thing is that xconnect worked fine for the last year. But a day ago we had a power issue and after c888ea started up xconnect didn't work. I've checked the backup configuration and couldn't find any changes.

Any help, please.

Sorry for such configuration example, write from my phone.

[Harold Ritter]

Hi @extremal.v ,

Can you provide a "sh xconnect peer <peer-id> vcid 1300 detail" from both end.

[extremal.v]

Hi, Harold Ritter!

The sh xconnect command output and some more configration output below.

c2811#sh xconnect peer 10.10.10.2 vcid 1300 det

Legend: XC ST=Xconnect State, S1=Segment1 State, S2=Segment2 State
UP=Up, DN=Down, AD=Admin Down, IA=Inactive, NH=No Hardware
XC ST Segment 1 S1 Segment 2 S2
------+---------------------------------+--+---------------------------------+--
DN ac Fa0/0.1300 1300(Eth VLAN) UP l2tp 10.10.10.2:1300 DN
Interworking: none Session ID: 46932
Tunnel ID: 25626
Protocol State: DOWN
Remote Circuit State: DOWN
pw-class: L2Tunnel1300

c2811#sh ip int br
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 unassigned YES NVRAM up up
FastEthernet0/0.1300 unassigned YES unset up up
FastEthernet0/1 unassigned YES NVRAM up up
Loopback0 10.10.10.1 YES NVRAM up up

pseudowire-class L2Tunnel1300
encapsulation l2tpv3
ip local interface Loopback0

interface FastEthernet0/0.1300
description PT.Users Pseudowire
encapsulation dot1Q 1300
xconnect 10.10.10.2 1300 encapsulation l2tpv3 pw-class L2Tunnel1300

c2811#ping 10.10.10.2 source Lo0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.10.2, timeout is 2 seconds:
Packet sent with a source address of 10.10.10.1
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/4 ms

c888ea#sh xconnect peer 10.10.10.1 vcid 1300 det

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
------+---------------------------------+--+---------------------------------+--
DN pri ac Vl1300:1300(Eth VLAN) DN l2tp 10.10.10.1:1300 DN
Interworking: none Session ID: 0
Tunnel ID: 0
Protocol State: DOWN
Remote Circuit State: DOWN
pw-class: L2Tunnel1300

c888ea#sh ip int brie
Vlan483 10.10.10.2 YES NVRAM up up
Vlan1300 unassigned YES unset up up

c888ea#sh int status

Port Name Status Vlan Duplex Speed Type
Fa0 c5505 connected trunk a-full a-100 10/100BaseTX
Fa1 Canopy Super connected trunk a-full a-100 10/100BaseTX
Fa2 Canopy Sector 1 connected trunk a-full a-100 10/100BaseTX
Fa3 Canopy Sector 2 connected trunk a-full 10 10/100BaseTX

pseudowire-class L2Tunnel1300
encapsulation l2tpv3
ip local interface Vlan483

interface Vlan1300
no ip address
xconnect 10.10.10.1 1300 encapsulation l2tpv3 pw-class L2Tunnel1300

c888ea#ping 10.10.10.1 source vlan 483
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.10.1, timeout is 2 seconds:
Packet sent with a source address of 10.10.10.2
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/4 ms

[Harold Ritter]

Hi @extremal.v ,

I am not sure why the local AC is showing as down in the output you provided:

> ac Vl1300:1300(Eth VLAN) DN

You might want to check with TAC.

[extremal.v]

Everythinng worked out when I've changed some configuration.

pseudowire-class L2Tunnel1300
encapsulation l2tpv3
protocol none
ip local interface Vlan483

interface Vlan1300
no ip address
xconnect 10.10.10.1 1300 encapsulation l2tpv3 manual pw-class L2Tunnel1300
l2tp id 1300 1300

c888ea#sh xconnect 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 Vl1300:1300(Eth VLAN) UP l2tp 10.10.10.1:1300 UP

And the same from the other side. So the problem solved.

Thank you everyone!