Dell PowerConnect Brocade 300 Fabric OS Administrator's Guide v7.1.0 - Page 311
Broadcast zones and FC-FC routing, Validating a zone,
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Broadcast zones 11 Figure 30 illustrates how broadcast zones work with Admin Domains. Figure 30 shows a fabric with five devices and two Admin Domains, AD1 and AD2. Each Admin Domain has two devices and a broadcast zone. "1,1" "2,1" "3,1" "4,1" AD1 broadcast "1,1; 3,1; 5,1" AD2 broadcast "2,1; 3,1; 4,1" "5,1" "1,1" broadcast "1,1; 3,1; 4,1" FIGURE 30 Broadcast zones and Admin Domains "3,1; 4,1" The dotted box represents the consolidated broadcast zone, which contains all of the devices that can receive broadcast packets. The actual delivery of broadcast packets is also controlled by the Admin Domain and zone enforcement logic. The consolidated broadcast zone is not an actual zone, but is just an abstraction used for explaining the behavior. • The broadcast zone for AD1 includes member devices "1,1", "3,1" and "5,1"; however, "3,1" and "5,1" are not members of AD1. Consequently, from the AD1 broadcast zone, only "1,1" is added to the consolidated broadcast zone. • The broadcast zone for AD2 includes member devices "2,1", "3,1", and "4,1". Even though "2,1" is a member of AD1, it is not a member of AD2 and so is not added to the consolidated broadcast zone. • Device "3,1" is added to the consolidated broadcast zone because of its membership in the AD2 broadcast zone. When a switch receives a broadcast packet it forwards the packet only to those devices which are zoned with the sender and are also part of the consolidated broadcast zone. You can check whether a broadcast zone has any invalid members that cannot be enforced in the current AD context. Refer to "Validating a zone" on page 323 for complete instructions. Broadcast zones and FC-FC routing If you create broadcast zones in a metaSAN consisting of multiple fabrics connected through an FC router, the broadcast zone must include the IP device that exists in the edge or backbone fabric as well as the proxy device in the remote fabric. See Chapter 24, "Using FC-FC Routing to Connect Fabrics," for information about proxy devices and the FC router. Fabric OS Administrator's Guide 311 53-1002745-02
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