Tips and Pitfalls: Interop

Key Points / Pitfalls

  • switch back to native mode to restart fcdomain
  • can’t use lun zoning, broadcast zoning or zone based QoS
  • FICON and interop modes are mutually exclusive
  • interop 1 doesn’t support “zoneset distr v vsan
  • interop 2 E ports require fcrxbbcredits set to 16 to talk correctly with Brocade switches
  • When using interop mode 4 you must change vsan-wwn to follow the format of: 2y:yy:08:00:88:xx:xx:xx
    • y:yy = the VSAN in hex your working with
    • x = last 3 bytes of actual switch wwn
  • interop 4 offsets domains by 96, so when you configure domain 3, its going to have FCID’s of 0x63xxxx.
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2 Responses to Tips and Pitfalls: Interop

  1. Caio Oliveira says:

    The correct should be:
    •When using interop mode 4 you must change vsan-wwn to follow the format of: 2y:yy:08:00:88:xx:xx:xx+1
    ◦y:yy = the VSAN in hex your working with
    ◦x = last 3 bytes of actual switch wwn

    • brian says:

      do you have a reference for that? The reality is the last 3 bytes just need to be unique, they don’t have to be taken from the current vsan wwn or current vsan wwn + 1. Some people like to have a non-arbitrary way of doing things so I have seen both approaches used.

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