I am currently trying QoS for video conferencing,
And the main protocol of video conferencing is H.323, current setting on the port which end point plugged in is: (cat3750)
switchport access vlan 10
switchport mode access
switchport voice vlan 110
switchport port-security maximum 2
switchport port-security aging time 1
switchport port-security violation restrict
switchport port-security aging type inactivity
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
macro description cisco-phone | cisco-phone
spanning-tree bpduguard enable
service-policy input AutoQoS-Police-CiscoPhone
basically autoQoS from cisco.
Can I get advice on?
1. Is above base QoS from Cisco including video conferencing? If not, what I should include? And how can I do it?
2. If I have 1G Ethernet link for a WAN do I need QoS on WAN interface? If I do, what I should do? If it is cat6500, will it cause performance issue? What about if wan router is cat3750?
Sorry for the silly question, Could anyone help me?
Any comments will be appreciated
Thanks in advance
You will need the port to trust dscp from the video-device: mls qos trust dscp
A phone wil not be connected so you may remove the phone-qos settings.
You will also need to map the corresponding dscp value to a cos value.
Mostly this is CS4 - cos4 which is a default value but check it anyway.
You must also verify that there is sufficient bandwidth reserved for CS4 traffic in the WAN.