03-06-2009 11:02 AM - edited 03-06-2019 04:26 AM
Hello:
I'm currently running "auto qos voip cisco-phone" on access ports to trust markings from Cisco phones. I also want do some marking on the data Vlan for those ports, and was wondering if I can do VLAN-based QoS for the data traffic, while running "auto qos voip cisco-phone" to honor markings for voice traffic? Can I run these at the same time? Here's an example of what I want to do:
class-map match-any MISSION-CRITICAL
match access-group name ACL1
class-map match-any NETWORK-CTL
match access-group name ACL2
policy-map MARK-EDGE-POLICY1
class NETWORK-CTL
set dscp cs2
class MISSION-CRITICAL
set dscp af21
interface FastEthernet1/0/1
switchport access vlan 22
switchport voice vlan 122
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
mls qos trust device cisco-phone
mls qos vlan-based
mls qos trust cos
auto qos voip cisco-phone
spanning-tree portfast
!
!
<snip>
!
interface Vlan22
ip address 10.1.2.1 255.255.255.0
ip helper-address 10.1.0.3
service-policy input MARK-EDGE-POLICY1
!
interface Vlan122
ip address 10.1.122.1 255.255.255.0
ip helper-address 10.1.0.3
!
Would this be an acceptable marking method for both the voice and data traffic?
Thanks in advance for any input.
03-06-2009 12:27 PM
Hi,
The configuration you have on fa1/0/1 is all related to COS which is in the layer 2 header (makes sense as this is a layer 2 switchport).
The service-policy applied to the Vlan interface is setting the DSCP/QoS values in the Layer 3 header.
On your switch you should also have some configuration relating to cos to dscp mappings and vice versa, however I'm not exactly sure what happens in your scenario. Maybe there is a QoS guru online who will know??
Regards
03-06-2009 12:44 PM
Sorry, I probably should've specified this, but I'm doing the cos-to-dscp mappings that auto-qos automatically sets up, so assume that DSCP marking for voice would be mapped appropriately.
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