08-23-2011 05:33 AM
Is there a recommended maximum number of ISL's I should have on a core switch ?
If I had core DC04, could I continue to add ISL's to edge switches until I had exhausted port usage, or is there a recommended maximum ?
08-23-2011 05:48 AM
In a Trunk, a maximum of 8 Port is allowed.
if you don't have any Trunking License option, another way is as DPS, in such case I don't would use more than 2 ISL Port at same time.
08-23-2011 05:56 AM
You can add as much ISL as possible (max port count).
You have to check if you have enough buffers free on your DCX4S. This can be an issue if you have many ISLs above 10KM lenght and FC8-48 port cards installed.
Under normal conditions this should not really an issue.
08-23-2011 06:41 AM
Sure, that a difference beetwen you and me.
Official Brocade Statement.:
DPS in a case of different Leght and/or Speed between e.g. DISK or Tape, caused at some Time that the ISL crash.
another question ?
08-23-2011 07:32 AM
From you first Q. I understand you want to add more ISL ( not in a Trunk ) from a Core-to-Edge.
--->>> I presume you mean no more than 2 ISL's back to each edge switch ?
Is correct, and in such case this is a DPS.
08-23-2011 07:48 AM
--->>>Is there a recommended limit ?
is unknown to me, and i don't know if here is any Official restrictions but...
--->>>....and what would be the maximum number of edge switches I can connect to the core DC04 utilising DPS.
like ISL Trunking I would not connect more as one Edge Switch to each Octo on DCX Site.