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default vlan 1 - no mac-adress from upstrem switch

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  • 1.  default vlan 1 - no mac-adress from upstrem switch

    Posted Nov 24, 2020 05:00 AM

    Hello guys,

    i'm new to aruba cx and the 8235 switch.

    I configured a VSX pair and connected it through a multichassis lag to my old 5406 Server distribution switch (there it is a classical aruba trunk).


    What I am now wondering about is, that default vlan 1 (native vlan on upstream multichassis lag) does not work.

    The VSX Switches do no see any of the Upstream MAC Address in vlan 1.

    The tagged vlans are working fine.

    I tried with mc lag13 to my server 5406 and with mc lag 15 to my core 5406.

    Same behaviour.

    VSX "pair":
    
    vlan 1
        vsx-sync
    vlan 11
        name Mgmt
        vsx-sync
        description Mgmt
    vlan 998
        name keepalive
        vsx-sync
        description keepalive
    vlan 999
        name Quarantaene
        vsx-sync
    vlan 2080
        name Kaba
        vsx-sync
        description Kaba
    
    interface lag 13 multi-chassis
        no shutdown
        description lag13_Access-2
        no routing
        vlan trunk native 1
        vlan trunk allowed 11,23,2080
        lacp mode active
        exit
    
    
    MAC Adress Table vlan 1
    
    8325-demo-01# sh mac-address-table vlan 1
    MAC age-time            : 300 seconds
    Number of MAC addresses : 1
    MAC Address          VLAN     Type                      Port
    --------------------------------------------------------------
    b8:d4:e7:d6:23:00    1        dynamic                   lag1
    
    8325-demo-02# sh mac-address-table vlan 1
    MAC age-time            : 300 seconds
    Number of MAC addresses : 1
    MAC Address          VLAN     Type                      Port
    --------------------------------------------------------------
    b8:d4:e7:d6:84:00    1        dynamic                   lag1
    
    
    Compared to Mac Adress table vlan 11
    
    8325-demo-01# sh mac-address-table vlan 11
    MAC age-time            : 300 seconds
    Number of MAC addresses : 95
    MAC Address          VLAN     Type                      Port
    --------------------------------------------------------------
    fc:15:b4:51:ea:f0    11       dynamic                   lag13
    f0:62:81:9c:f3:80    11       dynamic                   lag13
    f0:62:81:9c:73:e0    11       dynamic                   lag13
    ...
    
    8325-demo-02# sh mac-address-table vlan 11
    MAC age-time            : 300 seconds
    Number of MAC addresses : 95
    MAC Address          VLAN     Type                      Port
    --------------------------------------------------------------
    fc:15:b4:51:ea:f0    11       dynamic                   lag13
    f0:62:81:9c:f3:80    11       dynamic                   lag13
    f0:62:81:9c:73:e0    11       dynamic                   lag13
    ...
    
    
    There's another strange thing:
    with the show vlan id, the untagged native vlan 1 is not seen on Upstream lag13
    the tagged vlans are shown correctly.
    Interfaces with "vlan access 1" or the ISL lag1 with "vlan trunk native 1 tag" are shown.
    
    8325-demo-01# sh vlan 1
    VLAN  Name                              Status  Reason                Type      Interfaces
    1     DEFAULT_VLAN_1                    up      ok                    default   1/1/3,1/1/5-1/1/12,1/1/14,
                                                                                    1/1/16-1/1/48,lag1,lag10-lag11
    
    8325-demo-01# sh vlan 11
    VLAN  Name                              Status  Reason                Type      Interfaces
    11    Mgmt                              up      ok                    static    lag1,lag13,lag15
    
    
    Show spanning-tree includes the lag13 as the root port!:
    
    8325-demo-01# sh spanning-tree vlan 1
    VLAN1
    Spanning tree status : Enabled Protocol: RPVST
    lag13        Root           Forwarding 2000           64         P2P        18         258327     14         26
    
    8325-demo-02# sh spanning-tree vlan 1
    VLAN1
    Spanning tree status : Enabled Protocol: RPVST
    lag13        Root           Forwarding 2000           64         P2P        0          0          0          0
    
    --------------------------------------------------------------------
    
    The Upstream Aruba 5406 Switch is configured as follows:
    
    interface D3
       name "8325-demo-02_1/1/13"
       untagged vlan 1
       trunk trk13 lacp
       exit
    interface D4
       name "8325-demo-01_1/1/13"
       untagged vlan 1
       trunk trk13 lacp
       exit
    interface Trk13
       tagged vlan 11,23,2080
       untagged vlan 1
       spanning-tree priority 4
       exit
    
    -------------------------------------------------------------------
    
    I guess the commands "vlan trunk native 1" and "untagged vlan 1" should be the correct ones.
    On Aruba 5406 Switch vlan 1 and vlan 11 contain multiple mac-address entries:
    
    Access_2 RZ# sh mac-address vlan 1
     Status and Counters - Address Table - VLAN 1
      MAC Address   Port
      ------------- --------
      000379-03f762 A1
      00096b-161b7c A1
      00145e-6a49ea A1
    ...
    
    
    Access_2 RZ# sh mac-address vlan 11
     Status and Counters - Address Table - VLAN 11
      MAC Address   Port
      ------------- --------
      001c7f-6936b8 A1
      005056-90191f A1
      005056-aa0359 A1
    

    Any Idea why I did not see mac-addresses from vlan 1 on the VSX Switches?

    Thanks and kind regards


    Robert



    ------------------------------
    Robert Großmann
    ------------------------------


  • 2.  RE: default vlan 1 - no mac-adress from upstrem switch

    MVP GURU
    Posted Nov 24, 2020 04:51 PM
    Hi! Just a guess (I did that way)...try to add VLAN id 1 to the list of allowed VLANs of your VSX LAG 13:

    interface lag 13 multi-chassis
        no shutdown
        description lag13_Access-2
        no routing
        vlan trunk native 1
        vlan trunk allowed 1,11,23,2080
        lacp mode active
        exit​



    ------------------------------
    Davide Poletto
    ------------------------------



  • 3.  RE: default vlan 1 - no mac-adress from upstrem switch

    Posted Nov 25, 2020 03:16 AM

    Hi,

    too easy...

    I did that before and it did not work out, the lag went to blocking state.

    But it could be that at this time the vlan 1 configuration did not include the vsx-sync option.

    I feel like a totally noob^^

    Thank you and

    Kind Regards

    Robert



    ------------------------------
    Robert Großmann
    ------------------------------