McDATA 3000 manual Using the Spantree Portfast Command for Cisco Routers, Where

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Using the Spantree

Portfast Command for

Cisco Routers

This appendix provides information about the spantree portfast command for Cisco routers.

When a WAN link goes down and comes back up quickly, the virtual circuit may take from 30 to 90 seconds to re-establish itself. The spantree portfast command allows the Cisco router port that is directly connected to the UltraNet Edge 3000 to recover faster.

Issuing the Spantree Portfast Command

Issue the spantree portfast command only when faster recovery for the UltraNet Edge 3000 is necessary.

NOTE: The information contained in the following section was obtained from Cisco Customer Support.

set spantree portfast [mod_num/port_num] [enabledisable]

where:

mod_num	Number of the module.
port_num	Number of the port on the module
enable	Enables the spanning-tree port fast-start feature on the port.
disable	Disables the spanning-tree port fast-start feature on the port.
	By default the port fast-start feature is disabled.

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