Data Center (SLX)

  • 1.  Vlan(trunk) on port channel?

    Posted 11-07-2018 14:21
    hi guys,
    I'm hoping this is possible - scenario is:
    a port channel (2 switches x 1 port) which is a vlan 9. That port channel is in access mode.
    Can I use eth interfaces/ports(some or all) of that channel in trunk mode? (for iscsi)

    Eg.:
    Te 1/0/45 + Te 2/0/45 = Po 25 in access mode vlan 9

    Te 1/0/45 = in trunk for vlan 9 & 99 ?

    How this could be achieved?
    Many thanks, L.


  • 2.  RE: Vlan(trunk) on port channel?

    Posted 11-07-2018 14:28
    What product/model are we talking about here !?

    And no you can't configure part of a LAG - all ports in the LAG have the same configuration.


  • 3.  RE: Vlan(trunk) on port channel?

    Posted 11-07-2018 14:52
    No, you can not configure same port as access and trunk at the same time


  • 4.  RE: Vlan(trunk) on port channel?

    Posted 11-07-2018 15:05
    Thanks,

    it's BR-VDX6740 with 7.2.0a1

    So if a node/client has only two ports and need to talk to two subnets, then either no port channel or iscsi over that port channel (which I hear/read is not good)



  • 5.  RE: Vlan(trunk) on port channel?

    Posted 11-07-2018 15:09
    Routing !? I've one port on my client and talk to all subnets on this planet.

    Might be good if you post a network diagram and a little bit more information.


  • 6.  RE: Vlan(trunk) on port channel?

    Posted 11-07-2018 16:28
    if the client supports hashing based on IP/port, each iSCSI flow should take one path only and not be affected by any variable latency on LAG members. If you expect generally high load on interfaces, you might also want to mark iSCSI with a different COS/DCSP, if possible, and map to a separate Traffic Class on VDX.


  • 7.  RE: Vlan(trunk) on port channel?

    Posted 11-27-2018 00:35
    Nope,this cannot be done