I have a 887VA in a live environment that needs QOS for VoIP - choppy calls....
I'm a novice with QOS, so have been playing with my 861.
This is what I'm trying...
ip access-list extended VOIP
permit tcp any any range 6000 6049
permit tcp any any eq 5060
class-map match-any VoIP
match access-group name VOIP
priority percent 50
set dscp ef
ip nbar protocol-discovery
service-policy output VOIPQOS
I a few questions....
1. - Is this correct generally - will this priortise VoIP traffic over everything else.
2. - Should this be on fa4 or dialer0 - it's PPPoE, or doesn't it matter since FA4's upstream is dialer0 anyway
3. - The router that really needs this is an 887, so which interface do I put this on - ATM0?
4. - I get an error on the set dscp ef command on the 861 - is this because I'm wrong, or the 861 doesn't do this, and what ramifications will this have?
Sorry for the probably dumb questions, but my Cisco knowlege is learnt in the field - so VPNs etc I'm happy with but QOS is a dark hole at the moment!