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  1. Junior Member Registered Member
    Join Date
    Jun 2016

    Default L2 over L3 Bridging between IOS XR and IOS XE


    your help is much appreciated, I have an xconnect circuit between ASR1k and ASR9k, everything is fine accept no traffic is passing through three s only little packet that went through but no ping between hosts.

    IOS XE Device

    pseudowire-class XXXXX
    encapsulation l2tpv3
    interworking ip
    ip local interface TenGigabitEthernet0/1/0.719

    interface GigabitEthernet0/0/0
    no ip address
    negotiation auto
    xconnect 1 encapsulation l2tpv3 pw-class XXXXX

    interface TenGigabitEthernet0/1/0.719
    encapsulation dot1Q 719
    ip address

    show 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 Gi0/0/0:8(Ethernet) UP l2tp UP

    IOS XR Device

    pw-class XXXXX
    encapsulation l2tpv3
    protocol l2tpv3
    ipv4 source
    xconnect group XXXXX
    p2p XXXXX
    interface GigabitEthernet0/2/0/2
    neighbor ipv4 pw-id 1
    pw-class XXXXX
    interworking ipv4

    interface GigabitEthernet0/2/0/2

    show l2vpn xconnect detail
    Wed Jun 22 11:36:05.614 UTC

    Group XXXXX, XC Sinaa, state is up; Interworking IPv4
    AC: GigabitEthernet0/2/0/2, state is up
    Type Ethernet
    MTU 1500; XC ID 0x2080002; interworking IPv4
    packets: received 1088, sent 27
    bytes: received 69940, sent 1744
    drops: MTU exceeded 0, other 0
    PW: neighbor, PW ID 1, state is up ( established )
    PW class XXXXX, XC ID 0x2080002
    Encapsulation L2TPv3, protocol L2TPv3
    PW type IP, control word disabled, interworking IPv4
    PW backup disable delay 0 sec
    Sequencing not set

    L2TP class l2tp_default_class, IPv4 source address
    TOS 0 (reflect disabled), TTL 255, DF bit not set
    Path MTU: disabled
    Tunnel state connected, remote circuit status up
    L2TPv3 Local Remote
    --------------- ---------------------------- ---------------------------
    Session 3946569226 3272422562
    Cookie size 0 bytes 0 bytes
    Cookie unassigned unassigned
    MTU 1500 1500
    Control word disabled disabled
    PW type IP IP
    --------------- ---------------------------- ---------------------------
    Create time: 22/06/2016 11:20:30 (00:15:35 ago)
    Last time status changed: 22/06/2016 11:21:03 (00:15:02 ago)
    packets: received 27, sent 1088
    bytes: received 1744, sent 69940
    drops: out of sequence 0, other 0
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  2. Padawan d4nz1g's Avatar
    Join Date
    May 2013

    CCNP, BCNE, CCNA, CCNA Sec, MCSA2k8, IPv6 Silver
    Is ARP resolution working?
    Are you using large packets?

    On XE, hit "show xconnect all detail" or something like that. It should give you clues about what is happening.
    2017 - CCIE RS
    Labbing, labbing, labbing.
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