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Configuration Guide - VPN

S1720, S2700, S5700, and S6720 V200R010C00

This document describes the VPN configuration procedures and provides configuration examples.
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VSI Cannot Go Up in Martini VPLS Mode

VSI Cannot Go Up in Martini VPLS Mode

Fault Symptom

After Martini VPLS is configured, the VSI cannot go Up.

Procedure

  1. Run the display vsi name vsi-name command to check whether the encapsulation types on both ends are the same.

    • If the encapsulation types on both ends are different, run the encapsulation { ethernet | vlan } command in the VSI view to change the encapsulation type on one end to ensure that the two ends use the same encapsulation type.

    • If the encapsulation types on both ends are the same, go to step 2.

    NOTE:

    A VSI can be Up only when encapsulation types configured on both ends are the same.

  2. Run the display vsi name vsi-name command to check whether MTUs of the two ends are the same.

    • If MTUs of the two ends are different, run the mtu mtu-value command in the VSI view to change the MTU on one end to ensure that the two ends use the same MTU.

    • If MTUs of the two ends are the same, go to step 3.

    NOTE:

    A VSI can be Up only when MTUs configured for the two ends are the same.

  3. Run the display vsi name vsi-name verbose command to check whether VSI IDs or negotiation IDs on both ends are the same.

    • If VSI IDs or negotiation IDs on the two ends are different, run the pwsignal ldp command in the VSI-LDP view to change the VSI ID on one end, or run the peer peer-address [ negotiation-vc-id vc-id ] [ tnl-policy policy-name ] command to change the negotiation ID on one end to ensure that VSI IDs or negotiation IDs on the two ends are the same.

    • If the VSI IDs or negotiation IDs on both ends are the same, go to step 4.

  4. Run the display vsi name vsi-name verbose command to check whether the LDP session is Up.

    • If the LDP session is Down, see LDP Session Is Down in "MPLS LDP Configuration" in the S1720, S2700, S5700, and S6720 V200R010C00 Configuration Guide - MPLS to make the LDP session go Up.

    • If the LDP session is Up, go to step 5.

    NOTE:

    The two ends can perform L2VPN negotiation only after the LDP session is Up.

  5. Run the display vsi name vsi-name verbose command to check whether the VSI selects a tunnel.

    • Check whether the Tunnel ID value is 0x0. If the Tunnel ID value is 0x0, the VSI does not select a tunnel. Perform the following steps to configure a tunnel policy for the VSI:
    • Check the Tunnel Policy Name field. If this field is not displayed, the VSI uses an LDP LSP or no tunnel policy is configured for the VSI. To use an MPLS-TE tunnel, you must configure a tunnel policy. The value of the Tunnel Policy Name field indicates the tunnel policy of the VSI. You can run the display this command in the corresponding tunnel policy view to check the tunnel policy configuration.

    NOTE:

    If the tunnel binding destination dest-ip-address te { tunnel interface-number } command is configured in the tunnel policy view, run the mpls te reserved-for-binding command in the tunnel interface view.

    If the tunnel is not Up on both ends, see "LSP Goes Down" or " TE Tunnel Goes Down" to locate the fault and enable the tunnel to go Up. If the tunnel between the two ends is Up and the TE interface is correctly configured, go to step 6.

    NOTE:

    A VSI can be Up only when the tunnel between the two ends is Up.

  6. Run the display vsi name vsi-name verbose command to check whether the AC interfaces on both ends are Up.

    If the AC interfaces on the two ends are Down, see "Physical Interconnection&Interface Type" to make the AC interfaces go Up.

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Updated: 2019-04-18

Document ID: EDOC1000141944

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