Comware

 View Only
  • 1.  Procurve 2800 - Trunked ports, pass vlan'd ports?

    Posted Feb 22, 2010 03:50 AM
    Hi,

    We've got 2 * Procurve 2800's - which we've configured with two trunked ports:

    "
    trunk 45,47 Trk1 Trunk
    "

    These go off to another switch (which is similarly configured).

    On the first switch we have some untagged vlan ports, e.g.

    "
    vlan 20
    name "ISP_Net"
    untagged 13-24
    no ip address
    exit
    "

    On the second switch - we also have the above setup (same ports, same vlan ID)

    The two switches can 'see' each other as far as stcaking goes (the first switch is the stack commander - and it can see/configure the second switch fine).

    However - traffic for the vlan'd ports doesn't appear to pass to the 2nd switch.

    i.e. If we plug in a device into switch #1 port 13 - and a second device into switch #2 port 13 - they are not able to 'see' each other.

    Do they have to be tagged or something to cross over from one switch to the other? - I've seen a couple of forums where people mention you have to configure the trunk for 802.1q in order to pass vlan info - but can't find any other info other than that.

    We're using untagged vlans as none of our kit actually needs/uses vlans - we're just using it as a way of partitioning the switch ports on the switch (and disabling the gui/switch management from being available on these ports, as that's only available in the 'DEFAULT_VLAN'.

    If anyones got any pointers?

    Thanks,

    -Karl


  • 2.  RE: Procurve 2800 - Trunked ports, pass vlan'd ports?

    Posted Feb 22, 2010 04:25 AM
    Hi,
    if all the traffic from all vlans should go via trk1 then just tagg trk1 to all vlans:

    conf
    vlan 20
    tagged trk1
    exit
    wr mem

    that should do the trick..

    hth
    alex


  • 3.  RE: Procurve 2800 - Trunked ports, pass vlan'd ports?

    Posted Mar 01, 2010 06:23 AM
    Yes, that (perhaps unsurprisingly) fixed it...

    Thanks,

    -Karl


  • 4.  RE: Procurve 2800 - Trunked ports, pass vlan'd ports?

    Posted Mar 01, 2010 06:26 AM
    I guess with all the other ports using 'untagged' vlans, the trunk got overlooked - especially as remote management of the other stacked switch did work :)