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New Contributor
Posts: 4
Registered: ‎11-12-2012

Questions about "shared addressing" (I read documentation but still has problem)

Hi.

Please, help me to understand the "shared addressing".

In "Brocade Certified Fabric Administrator in a Nutshell 16 Gbps Edition" at page 14,

I see "018000 – Port 16".

How it is possible?

First 2 bytes "01" - it's Domain ID. It's clear.

But next I see Area ID.

"80" in Hex, it will be 128 in Dec.

How can be obtained of "80" Hex in "16"  Dec?

Port 16  it must be "10" in Hex, and must be PID 018000.

Next, 018080 – Port 40.

Why?

Valued Contributor
Posts: 521
Registered: ‎03-20-2011

Re: Questions about "shared addressing" (I read documentation but still has problem)

well, i don't know the exact addressing schema, but imagine you have a fully loaded 8510. that means 8 blades x 64 ports = 512 ports. plus core blades with their ICL ports. since this wouldn't fit into one middle byte of the 24-bit port ID, brocade had to invent something to use bits from the third byte. why they made it so complex and not intuitively clear? to confuse russians - i guess Smiley Happy

Valued Contributor
Posts: 761
Registered: ‎06-11-2010

Re: Questions about "shared addressing" (I read documentation but still has problem)

hahaha, Alexey is right. I suppose that we cannot obtain the physical port from the Area ID anymore, specilly when using Virtual Fabrics and big switchs like DCX...

Rgds

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