Hey -
I want to enable some real QoS at a new site as opposed to auto-qos. The site is going to have a 1002 router and 2, 3750X switches. The phone are going to be Nortel. I'm thinking of enabling VLAN-based QoS. I'm referring to a Nortel document for QoS to a Cisco 3750.
Here is my config related to QoS on the 3750X
mls qos srr-queue input buffers 70 30
mls qos
!
class-map match-all voice
match access-group name voice-traffic
!
policy-map voice-policy
class voice
trust dscp
!
interface GigabitEthernet1/0/1
switchport mode access
switchport access vlan 2
switchport voice vlan 10
mls qos vlan-based
spanning-tree portfast
spanning-tree bpduguard enable
!
interface Vlan10
ip addr 10.10.10.1 255.255.255.0
service-policy input voice-policy
!
ip access-list extended voice-traffic
permit ip 10.10.10.0 0.0.0.255 any
!
On the router:
class-map match-any IN
match ip dscp ef
class-map match-any VOICE
match ip dscp ef
!
policy-map IN
class IN
set ip dscp ef
policy-map QoS
class VOICE
priority percent 30
!
interface GigabitEthernet0/0/0
description CONNECTION TO CORE SWITCH
ip address 172.20.1.138 255.255.255.252
negotiation auto
service-policy input IN
service-policy output QoS
!
interface Serial0/1/0
description WAN CIRCUIT FROM SITE 2 TO SITE 1
ip address 172.20.1.114 255.255.255.252
ip flow ingress
dsu bandwidth 44210
framing c-bit
cablelength 10
service-policy output QoS
!
First off, This is a call center with 30 or so people - is VLAN-based QoS the way to go in this situation.
Must I also apply the "mls qos vlan-based" command on the trunk ports between the switches and the L3 port connecting to the router?
Like I said - I'm taking a stab at this - does it appear correct?
Thank you.
