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# Monitoring VPWS Connections

Purpose

Display configuration and status information for VPWS L2VPN connections configured on the router. The details keyword displays detailed information about the connections.

Action

To display detailed information about connections for all VPWS instances configured on the router:

    host1:pe1# show l2vpn connections details
    L2VPN: l2vpn1
        Encapsulation Type Ethernet
        Use of control word is preferred
        Send sequence numbers
        Route Distinguisher 100:11
        Site Range 10
        Sites:
          Site Name westford Site Id 1
           Multi-homed:            Yes
           Site-Priority:          45    Route Targets:
          Route Target: RT:100:1 both
                                                        Admin    Oper
       Interface      Local-Site-Id   Remote-Site-Id    state    state
    ---------------   -------------   --------------   -------   -----
    FastEthernet4/1   1               2                enabled   up
    Connections status code:
    UP = Operational
    SC = Local and Remote Site Identifier Collision
    EM = Encapsulation Mismatch
    OR = Out of Range
    DN = VC Down because Remote PE Unreachable
    LD = Local Site Down
    RD = Remote Site Down
    AS = Max BGP AS path length exceeded
    OL = No Out Label
    CM = Control Word Mismatch
    LN = Local Site not Designated
    RN = Remote Site not Designated

    Local   Remote           Remote                             MPLS     Up-down
    Site     Site    State     PE      In-label   Out-label    NH Idx      Time
    -----   ------   -----   -------   --------   ---------   --------   --------
    1       2        UP      2.2.2.2   25         74          0000001d   01:49:12
    L2VPN: l2vpn2
        Encapsulation Type ATM AAL5 SDU VCC transport
        Use of control word is preferred
        Send sequence numbers
        Route Distinguisher 100:12
        Site Range 20
        Sites:
          Site Name boston Site Id 3
           Multi-homed:            Yes
           Site-Priority:          100    Route Targets:
          Route Target: RT:100:2 both
                                                   Admin    Oper
    Interface    Local-Site-Id   Remote-Site-Id    state    state
    ----------   -------------   --------------   -------   -----
    ATM2/0.122   1               2                enabled   up
    ATM2/0.123   1               3                enabled   up
    ATM2/0.124   3               1                enabled   up
    ATM2/0.121   3               2                enabled   up
    Connections status code:
    UP = Operational
    SC = Local and Remote Site Identifier Collision
    EM = Encapsulation Mismatch
    OR = Out of Range
    DN = VC Down because Remote PE Unreachable
    LD = Local Site Down
    RD = Remote Site Down
    AS = Max BGP AS path length exceeded
    OL = No Out Label
    CM = Control Word Mismatch
    LN = Local Site not Designated
    RN = Remote Site not Designated

    Local   Remote           Remote                                      MPLS     Up-down
    Site     Site    State     PE        In-label        Out-label      NH Idx      Time
    -----   ------   -----   -------   -------------   -------------   --------   --------
    1       2        UP      2.2.2.2   35              84              0000001d   01:50:40
    1       3        UP                implicit-null   implicit-null   2d000008   02:24:45
    3       1        UP                implicit-null   implicit-null   2d000007   02:24:45
    3       2        UP      2.2.2.2   55              86              0000001d   01:50:40

To display detailed information about connections for a specific VPWS instance:

    host1#show l2vpn connections instance l2vpn1 details
    L2VPN: l2vpn1
        Encapsulation Type ATM AAL5 SDU VCC transport
        Use of control word is preferred
        Send sequence numbers
        Route Distinguisher 100:11
        Site Range 10
        Sites:
          Site Name westford Site Id 1
          Multihomed priority 200
         Route Targets:
          Route Target: RT:100:2 both

                                                   Admin    Oper
    Interface    Local-Site-Id   Remote-Site-Id    state    state
    ----------   -------------   --------------   -------   -----
    ATM2/0.100   1               2                enabled   up
    ATM2/0.12    1               3                enabled   up

    Connections status code:
    UP = Operational
    SC = Local and Remote Site Identifier Collision
    EM = Encapsulation Mismatch
    OR = Out of Range
    DN = VC Down because Remote PE Unreachable
    LD = Local Site Down
    RD = Remote Site Down
    AS = Max BGP AS path length exceeded
    OL = No Out Label
    CM = Control Word Mismatch
    LN = Local Site not Designated
    RN = Remote Site not Designated

                   Remote                             MPLS       Up-down
    Site   State     PE      In-label   Out-label    NH Idx       Time
    ----   -----   -------   --------   ---------   --------   -----------
    2      UP      2.2.2.2   17         801024      00000014   1d 08:45:34
    3      UP      2.2.2.2   18         801028      00000014   1d 08:45:34

Meaning

Table 106 lists the show l2vpn connections command output fields.

Table 106: show l2vpn connections Output Fields

Field Name | Field Description
--- | ---
L2VPN | Name of the VPWS instance
Encapsulation Type | Encapsulation type configured for the VPWS instance
Use of control word | Local preference for control word, preferred or not preferred
sequence numbers | Local preference for sequence number, send or don’t send
Route Distinguisher | Route distinguisher configured for the VPWS instance
Site Range | Maximum number of customer sites allowed in the VPWS instance
Sites | Site name and site ID for each customer site in the VPWS instance
Multihomed priority | Priority of the VPWS instance to serve as the backup PE router for the CE device in the event of a network failure in the multihomed configuration; indicates also that the site is multihomed
Route Targets | Route targets configured for the VPWS instance
Interface | Layer 2 interface that is a member of the VPWS instance
Local-Site-Id | Local customer site ID configured on the layer 2 interface
Remote-Site-Id | Remote customer site ID configured on the layer 2 interface

#### Related Topics

- show l2vpn connections

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