HP StorageWorks 8/40 Brocade Fabric OS Administrator's Guide v6.3.0 (53-100133 - Page 271
Broadcast zones and Admin Domains,
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Broadcast zones 11 Devices that are not members of the broadcast zone can send broadcast packets, even though they cannot receive them. A broadcast zone can have domain,port, WWN, and alias members. Broadcast zones do not function in the same way as other zones. A broadcast zone does not allow access within its members in any way. If you want to allow or restrict access between any devices, you must create regular zones for that purpose. If two devices are not part of a regular zone, they cannot exchange broadcast or unicast packets. To restrict broadcast frames reaching broadcast-incapable devices, create a broadcast zone and populate it with the devices that are capable of handling broadcast packets. Devices that cannot handle broadcast frames must be kept out of the broadcast zone so that they do not receive any broadcast frames. You create a broadcast zone the same way you create any other zone except that a broadcast zone must have the name "broadcast" (case-sensitive). You can set up and manage broadcast zones using the standard zoning commands, which are described in "Zone creation and maintenance" on page 233. Broadcast zones and Admin Domains Each Admin Domain can have only one broadcast zone. However, all of the broadcast zones from all of the Admin Domains are considered as a single consolidated broadcast zone. Broadcast packets are forwarded to all the ports that are part of the broadcast zone for any Admin Domain, have membership in that Admin Domain, and are zoned together (in a regular zone) with the sender of the broadcast frame. Figure 27 illustrates how broadcast zones work with Admin Domains. Figure 27 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 27 Broadcast zones and Admin Domains "3,1; 4,1" Fabric OS Administrator's Guide 229 53-1001336-01
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