Solved: L2TPv3 On ASR 9001 - Page 2

Pok LY · ‎09-19-2014

Dear All,

I have problem with l2tpv3 over ASR9001 and IOS is not working the tunnel is up the the ping traffic is not passed through please help to advise.

RP/0/RSP0/CPU0:CR02#show run l2vpn
Fri Sep 19 16:28:34.628 KHMER
l2vpn
pw-class TEST
encapsulation l2tpv3
protocol l2tpv3
ipv4 source 175.28.0.5
!
!
xconnect group TEST
p2p TEST
interface GigabitEthernet0/0/0/5
neighbor ipv4 119.82.248.165 pw-id 111
pw-class TEST
!
RP/0/RSP0/CPU0:CR02#show run interface GigabitEthernet0/0/0/5
Fri Sep 19 16:29:17.230 KHMER
interface GigabitEthernet0/0/0/5
load-interval 30
l2transport

IOS

Router#show run int g0/1
Building configuration...

Current configuration : 136 bytes
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
xconnect 175.28.0.5 111 encapsulation l2tpv3 pw-class TEST
end

Router#show run
Building configuration...

pseudowire-class TEST
encapsulation l2tpv3
ip local interface Loopback0

!!!!!!!!!!!!!!!!!

RP/0/RSP0/CPU0:CR02#show l2vpn xconnect detail
Fri Sep 19 16:31:47.141 KHMER

Group TEST, XC TEST, state is up; Interworking none
AC: GigabitEthernet0/0/0/5, state is up
Type Ethernet
MTU 1500; XC ID 0x1080003; interworking none
Statistics:
packets: received 210068, sent 3592
bytes: received 23011939, sent 822568
drops: MTU exceeded 0, other 0
PW: neighbor 119.82.248.165, PW ID 111, state is up ( established )
PW class TEST, XC ID 0x1080003
Encapsulation L2TPv3, protocol L2TPv3
PW type Ethernet, control word disabled, interworking none
PW backup disable delay 0 sec
Sequencing not set

L2TP class l2tp_default_class, IPv4 source address 175.28.0.5
TOS 0 (reflect disabled), TTL 255, DF bit not set
Path MTU: disabled
Tunnel state connected, remote circuit status up
L2TPv3 Local Remote
--------------- ---------------------------- ---------------------------
Session 1401163178 3990078582
Cookie size 0 bytes 0 bytes
Cookie unassigned unassigned
MTU 1500 1500
Control word disabled disabled
PW type Ethernet Ethernet
--------------- ---------------------------- ---------------------------
Create time: 19/09/2014 14:46:13 (01:45:26 ago)
Last time status changed: 19/09/2014 14:46:13 (01:45:26 ago)
Statistics:
packets: received 3592, sent 210068
bytes: received 822568, sent 23011939
drops: out of sequence 0, other 0

This is the error on IOS XR I got.

Sep 19 16:14:04.446 l2vpn/err 0/RSP0/CPU0 t6 XC|ERR:1019: XC DB operation failed. Reason: Invalid context 0x5151ff90 or container type 0
Sep 19 16:14:04.446 l2vpn/err 0/RSP0/CPU0 t6 XC|ERR:1544: XC DB operation failed. Reason: Invalid context 0x5151ff90 or container type 0
Sep 19 16:14:04.446 l2vpn/xc 0/RSP0/CPU0 t6 XC|ERR:1544: XC DB operation failed. Reason: Invalid context 0x5151ff90 or container type 0
Sep 19 16:14:04.446 l2vpn/xc 0/RSP0/CPU0 t6 XC|ERR:1019: XC DB operation failed. Reason: Invalid context 0x5151ff90 or container type 0
Sep 19 16:14:04.446 l2vpn/xc 0/RSP0/CPU0 t6 XC|ERR:1544: XC DB operation failed. Reason: Invalid context 0x5151ff90 or container type 0

please help.

Regards, Pok.

vladdar1349 · ‎02-23-2018

Hello I have the same problem but between ASR 9910 with 6.2.3 IOS XR version and ASR1002 with asr1000rp1-adventerprisek9.03.16.02.S.155

Traffic is not passing through. L2TPv3 over IPv4 should be supported since 6.1.2 version.

ASR9910:

l2vpn
pw-class l2tpv3_class
encapsulation l2tpv3
protocol l2tpv3 class L2TP-CLASS
ipv4 source 10.10.10.10

transport-mode vlan
!
!
xconnect group VLAN8
p2p VLAN8
interface GigabitEthernet0/3/0/0.8
neighbor ipv4 10.10.10.11 pw-id 10008
pw-class l2tpv3_class

!

l2tp-class L2TP-CLASS
retransmit retries 10
hello-interval 1

!

interface GigabitEthernet0/3/0/0
mtu 9198
!

interface GigabitEthernet0/3/0/0.8 l2transportinterface GigabitEthernet0/3/0/0.8 l2transport encapsulation dot1q 8

!

Group VLAN8, XC VLAN8, state is up; Interworking none
AC: GigabitEthernet0/3/0/0.8, state is up
Type VLAN; Num Ranges: 1
Rewrite Tags: []
VLAN ranges: [8, 8]
MTU 9188; XC ID 0x2a00004; interworking none
Statistics:
packets: received 1334, sent 0
bytes: received 83563, sent 0
drops: MTU exceeded 0, other 0
PW: neighbor 10.10.10.11, PW ID 10008, state is up ( established )
PW class l2tpv3_class, XC ID 0x2a00004
Encapsulation L2TPv3, protocol L2TPv3
PW type Ethernet VLAN, control word disabled, interworking none
PW backup disable delay 0 sec
Sequencing not set

L2TP class L2TP-CLASS, IPv4 source address 10.10.10.10
TOS 0 (reflect disabled), TTL 255, DF bit not set
Path MTU: disabled
Tunnel state connected, remote circuit status up
L2TPv3 Local Remote
--------------- ---------------------------- ---------------------------
Session 1017265061 2277853818
Cookie size 0 bytes 0 bytes
Cookie unassigned unassigned
MTU 9188 9188
Control word disabled disabled
PW type Ethernet VLAN Ethernet VLAN
--------------- ---------------------------- ---------------------------
Create time: 23/02/2018 11:46:14 (00:00:37 ago)
Last time status changed: 23/02/2018 11:46:14 (00:00:37 ago)
Statistics:
packets: received 0, sent 1334
bytes: received 0, sent 83563
drops: out of sequence 0, other 0

ASR 1002:

pseudowire-class l2tpv3
encapsulation l2tpv3
ip local interface Loopback0

!

interface GigabitEthernet0/0/1
description mikrotik-test-l2
mtu 9188
no ip address
negotiation auto
service instance 8 ethernet
encapsulation dot1q 8
xconnect 10.10.10.10 10008 encapsulation l2tpv3 pw-class l2tpv3

!

XC ST Segment 1 S1 Segment 2 S2
------+---------------------------------+--+---------------------------------+--
UP pri ac Gi0/0/1:8(Eth VLAN) UP l2tp 10.10.10.10:10008 UP
Interworking: vlan Session ID: 2277853818
Tunnel ID: 2295326067
Protocol State: UP
Remote Circuit State: UP
pw-class: l2tpv3

What could be the problem?

Thanks.

Aleksandar Vidakovic · ‎02-23-2018

On asr9k side we seem to be sending traffic into the PW, but not receiving anything. Blast some traffic from the asr1k side and watch the NP counters on the asr9k side. The NP counters that increment will help understand what's happening with the received traffic.