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Forum Replies

  1. Hi Alan,

    Good question…only thing I could find is this document:


    a) It doesn’t specify anything about the number of interfaces, only the number of sessions.

    b) For a single session, you specify a source + destination so that’s one session.

    c) maximum of 4 (2 if switch is stacked with Catalyst 2960-S switches) source sessions and 64 RSPAN destination sessions. A source session is eit

    ... Continue reading in our forum

  2. Hello,
    I have two 3750 trunked with gi ethernchannel.
    VTP enabled. SW1 is VTP client and is a source for RSPAN. VLAN 20 is only enabled.

    SW2 is the destination for RSPAN source traffic, it is the VTP Server.

    I tried VLAN 20 and got expected message: %VTP VLAN configuration not allowed when device is in CLIENT mode.
    That prevents me to execute the next command remote span under for VLAN 20 on VTP client. Please add more content to your RSPAN example explaining how to enable RSPAN on VTP client.

  3. Hello AZM

    First of all, it doesn’t really matter what IP addresses you configure on the packet sniffers. These devices will not be able to communicate with the network as their sole purpose is to sniff or detect any and all packets that are sent from the destination ports.

    Secondly, the destination ports have all ingress traffic disabled, so even if they were configured with additional parameters, these are all overridden.

    Essentially, no additional parameters are necessary on the destination ports.

    You can find additional comprehensive information about the d

    ... Continue reading in our forum

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