CSS 11501 spanning-tree question

smc — Wed, 06 Oct 2004 13:36:39 GMT

Hi,

Have a CSS 11501 and am confused about the documentation on spanning -tree

Cisco says the CSS has a default priority of 32768 according to this example:

http://www.cisco.com/en/US/products/hw/contnetw/ps792/products_configuration_guide_chapter09186a00801ee706.html

but in this example:

http://www.cisco.com/en/US/products/hw/contnetw/ps789/products_configuration_example09186a00801e16c7.shtml

they state that the default bridge priority for a interface/vlan pair (on a trunk)is 128 !!

Does cisco differentiate between the default, out-of-the box spanning-tree setting and do they use a different default-value for spanning-tree regarding trunks ?

Thanks

Radboud

Re: CSS 11501 spanning-tree question

Gilles Dufour — Fri, 08 Oct 2004 06:20:51 GMT

the bridge priority mentioned in the 2nd command is actually the port-priority which has a value between 0-250 while the true bridge priority configured outside of the interface has a value from 0 - 65535.

The following info from the CSS CLI clearly indicates the command 'bridge priority' on the interface is actually a confusing name

GILLES(config-if[ 2/1])# bridge priority ?

Port spanning-tree priority (command is renamed to port-priority)

As you can see the command was renamed port-priority but the old command is still present.

Regards,

Gilles.

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CSS 11501 spanning-tree question

Re: CSS 11501 spanning-tree question