Reference Guide

Brocade Fabric OS Command Reference 73
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bcastShow
bcastShow
Displays broadcast routing information.
Synopsis bcastshow
Description Use this command to display the broadcast routing information for all ports in the switch. The broadcast routing
information indicates all ports that are members of the broadcast distribution tree: ports that are able to send and
receive broadcast frames.
Normally, all F_Ports and FL_Ports are members of the broadcast distribution tree. The broadcast path selection
protocol selects the E_Port members of this tree in a manner designed to prevent broadcast routing loops.
The following fields are displayed:
Group
The multicast group ID of the broadcast group (always 256).
Member Fx_Ports
A map of all F_Ports and FL_Ports ports in the broadcast tree.
Member E_Ports
A map of all E_Ports in the broadcast tree.
The broadcast routing information for the ports is displayed as a set of hexadecimal bit maps. Each bit in a bit map
represents a port, with the least significant bit in each row representing port 0, 32, 64, and so on.
Notes The output from this command may vary depending on the hardware platform.
The execution of this command is subject to Virtual Fabric restrictions that may be in place. Refer to "Using Fabric
OS Commands" and "Command Availability" for details.
Operands None
Examples To display the broadcast routing information for all ports in the switch:
switch:admin> bcastShow
Group Member Ports Member ISL Ports
----------------------------------------
256 0x00012083 0x00002080
0x00000440 0x00000400
0x00770000 0x00700000
0x00008200 0x00000000
0x00000001 0x00000000
In this example from a switch with 128 ports, the member ports consist of ports 7, 13, 42, 84, 85, and 86. The final
Member Ports bit set represents the embedded port (frames sent to be handled by firmware).and is typically set.
SEE ALSO portRouteShow