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Forum Replies

  1. Hi Alan,

    1. This was an error which I just fixed. On both ends it should be “no switchport”. There’s two ways how you can create the Etherchannel, you could first manually create the port channel interface and add the physical interfaces or you can do what I did. If you assign physical interfaces to a non-existing port channel then it will be automatically created.

    2. Hmm I haven’t tried this but I guess it could work. It’s similar to connecting a router interface (L3 routed port) to a switch (L2 switchport).

    3. Load balancing is the same for L2 and L3 and you can

    ... Continue reading in our forum

  2. Hi Rene, you mention above that you have been able to get L3 PAgP working with VIRL. When I try, the etherchannel is always suspended at both ends. See output of ‘show etherchannel summary’ command.

    Group Port-channel Protocol Ports
    ------±------------±----------±----------------------------------------------
    1 Po1(RD) PAgP Gi0/1(s)

    I’ve tried ‘sudo vinstall bridge’ & restarting my VIRL vm as recommended on the VIRL discussion pages, however the problem persists and I continue to receive the log message:

    *Nov 2 10:48:04.907: %EC-5-L3DONTBNDL1: Gi0/1 suspended:

    ... Continue reading in our forum

  3. Thanks Rene for your response,

    Probably WLAN is not good choice of comparing to extended the network since CAPWAP is L3

    https://supportforums.cisco.com/t5/lan-switching-and-routing/question-about-mls-and-its-operation/td-p/2126374


    If you refer to this correct answer in this URL

    Assume a access switch (as1) gig0/1 uplink to distribution switch (ds1) gig0/2

    as1 switch configuration

    !
    interface GigabitEthernet0/1
     description ** Uplink to ds1 **
     switchport mode trunk
     switchport trunk encapsulation dot1q
     switchport trunk allowed vlan 10
    !
    interface vlan 250
     ip
    ... Continue reading in our forum

  4. Rene,
    thanks for all you great explanation of everything. Thank you Network Lessons :slight_smile:

    Ammar,

  5. Hi Rene,
    Just my 2 cents, it should be worthwhile to mention that order of operation is crucial when creating L-3 port-channel. i.e. “no swithport” cmd must be entered 1st before entering “channel-group” command. If we enter the “channel-group” cmd first then port-channel will become layer-2 port-channel, and this operation is not revertible.

    Regards,
    Mehul

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