Brocade Communications Systems 8/40 Service Manual download pdf (Page 29)

BCSM IN A NUTSHELL 2008

Page 27 of 44

5.2 HOW TO MONITOR AND MANAGE SHARED DEVICES BETWEEN EDGE

FABRICS

DOMAIN MANAGEMENT

It is important to keep track of domains in a routed fabric environment. Look at this diagram of a routed

fabric:

Figure 5: Sample Routed Fabric

The EX_Ports on each router will generate a front domain, and proxy devices will generate a translate

domain.

Phantom Front Domain (fd): A logical domain created when edge fabrics are connected to backbone

fabrics. Starting with Fabric OS v5.2, only a single fd is created for all IFL connections between a router

and a particular edge fabric.

Phantom Translate Domain (xd): A logical domain created when routed fabrics share devices. This

sharing is accomplished through the creation and enabling of LSAN zones. This logical domain is where

the imported devices logically exist.

CONGESTION

Congestion in a routed fabric is handled much the same as in a non-routed fabric:

• Localize devices if possible (although in routed fabrics this may be somewhat more difficult)

• Add IFLs between the edge fabrics and the routers

• Add ISLs between the switches in the backbone fabric

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 45 46

No comments

Brocade Communications Systems 8/40 Service Manual Page 29