Assigning Packets to Priority Queues

[d.fraga]

Hi,

I am configuring a Layer 3 switch and the configuration will be similar to our Cat2948G. While setting up the access-lists I came across this statement.

access-list 110 permit ip any any precedence critical

which goes with

priority-list 1 protocol ip high list 110

Can someone tell me what these statments are suppose to accomplish?

Thanks

David

access-list 110 permit ip any any precedence critical

priority-list 1 protocol ip high list 110

[Hieu Cao]

It's a form of QoS to prioritize IP traffic marked with "ip precedence critical - which has a value of 5 or DSCP EF (46)" to give VoIP packets high priority processing.

Check out this link for more info..

http://cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a00800b75b0.html#25711

HTH,

hieu