Some problems with L2vpn interworking ethernet to vlan over l2tpv3 on 7600 es20+

[fedcre]

Hi all, i've some problems with interworking ethernet to vlan with l2tpv3 on es+..

L2vpn interworking ethernet to vlan over l2tpv3 seems not working if 7600 es20+ performs Ethernet Interworking. It seems that Es20+ doesn’t add vlan tag from pseudowire towards tagged client connected to es20+. Tunnel l2tpv3 is up.

Same configuration with 7200 ( 12.2.SRE) performing Ethernet interworking it’s ok.

Tunnel l2tpv3 between 2800_customer side and 7600-PE

A pc untagged is connected to 2800_cust_side, while a tagged router is connected to gi4/19 of 7600-PE.

7600-PE#sh module

Mod Ports Card Type                             Model            

--- ----- -------------------------------------- ------------------ -----------

1   2 Route Switch Processor 720 (Active)   RSP720-3C-GE      

4   20 7600 ES+                               7600-ES+20G3C 

7600 version 12.2.SRE6 or 15.1.3.S3 adv ip services

2800_cust_side (untagged side) pseudowire-class vlaniw-pw encapsulation l2tpv3 interworking ethernet ip local interface Loopback0 ! interface Loopback0 ip addressxx.xx.xx.118   255.255.255.255 ! interface FastEthernet0/1 description vs  Client PC no ip address duplex auto speed auto no keepalive xconnect xx.xx.xx.119 333   pw-class vlaniw-pw !

7600-PE   (tagged side): ver 12.2.33SRE6 or 15.1.3.S3 pseudowire-class vlaniw-pw encapsulation l2tpv3 interworking ethernet ip local interface Loopback3 ! interface Loopback3 description per l2tpv3 ip address xx.xx.xx.119   255.255.255.255 mls l2tpv3 reserve interface   GigabitEthernet4/11 GigabitEthernet4/20 ! interface GigabitEthernet4/19.780 encapsulation dot1Q 780 xconnect xx.xx.xx.118 333   encapsulation l2tpv3 pw-class vlaniw-pw ! Or interface GigabitEthernet4/19 ! service instance 780 ethernet description vs 1840_tp encapsulation dot1q 780 rewrite ingress tag pop 1   symmetric xconnectxx.xx.xx.118 333   encapsulation l2tpv3 pw-class vlaniw-pw !

TROUBLESHOOTING on the tunnel:

2800_cust_side (untagged side) 2800_Cust_side#sh l2tun   session all L2TP Session Information Total   tunnels 1 sessions 1 Session id 2288800623 is up,   logical session id 32870, tunnel id 308305302 Remote session id is 7993, remote tunnel id   2488514968 Locally initiated session Unique ID is 44 Session   Layer 2 circuit, type is Ethernet, name is FastEthernet0/1 Session vcid is 333 Circuit state is UP    Local circuit state is UP    Remote circuit state is UP ……. 2800_Cust_side#sh   l2tun session interworking L2TP   Session Information Total tunnels 1 sessions 1 LocID     TunID     Peer-address   Type IWrk Username, Intf/                                                 Vcid, Circuit 2288800623   308305302 xx.xx.xx.119   ETH   -   333, Fa0/1

7600-PE   (tagged side): ver 12.2.33SRE6 or 15.1.3.S3 7600-PE#sh l2tun session all L2TP Session Information Total tunnels 1 sessions 1 Session id 7993 is up, logical session id 65595, tunnel id 2488514968 Remote session id is   2288800623, remote tunnel id 308305302 Remotely initiated session Unique ID is 17 Session Layer 2 circuit,   type is Ethernet Vlan, name is GigabitEthernet4/19.780:780 Session vcid is 333 Interworking type is Ethernet Circuit state is UP    Local circuit state is UP    Remote circuit state is UP …… 7600-PE#sh   l2tun session interworking L2TP   Session Information Total tunnels 1 sessions 1 LocID     TunID     Peer-address   Type IWrk Username, Intf/                                                  Vcid, Circuit 7993       2488514968 xx.xx.xx.118   VLAN ETH   333, Gi4/19.780:780

Please , anyone can help me?

Federica.