3Com corebuilder 3500 Implementation Manual page 133

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Key Guidelines for Implementation

If you want to specify a multicast limit for a trunk, be sure to apply it

to the trunk's anchor port (lowest-numbered port) only. However, be

aware that the multicast limit applies to each link in the trunk (that is,

it is not an aggregate).

You can enable STP with trunks. You may find it useful to configure a

backup trunk that STP places in the blocking state. See Chapter 8 for

more information about trunking.

If you have specified

as the VLAN mode and you want to

administer bridge port address options, you must specify the correct

VLAN interface index because each VLAN in

unique address table.

The system includes an "ignore STP mode" option that affects VLAN

configurations. See Chapter 9 for more information or see the

Command Reference Guide.

GVRP is useful only when there are other switches or NICs in the

network that support GVRP.

You can define up to 32 bridge ports on the system. One

consideration is that if you configure two or more ports of any

technology type to form a trunk (a single logical bridge port), the

system counts all ports in the trunk toward the bridge port limit.