Hi
I understand with "standard" QoS, you would map and match relevant traffic, and then set an attribute such as IP Precedence.
For instance, supposing I wanted to set QoS for TFTP traffic, I would enter the following in global config mode;
mls qos access-list 101 permit udp any any eq tftp class-map tftp match access-group 101 policy-map precedence class tftp set ip precedence 5 interface range fa0/1 - 10 service-policy input precedence
Couple of questions;
a) On ACL 101, do I not need to enter 'permit ip any any' at the end because of the implicit deny at the end, or because the ACL is just to match a class of traffic is this unnecessary? b) If I wanted to configure similar for VoIP, how would this be done? Does VoIP have a port number (searched, but can't find), or can I type along the lines access-list 101 permit tcp any any eq voip (I get an error on my switch)?
Using auto-QoS, according to the Sybex book I could enter;
mls qos interface fa0/1 auto qos voip cisco-phone
But will this actually give VoIP any priority over other traffic?
Thanks.