Cisco 6500 - Modification from auto qos voip trust
I'm in the unfortunate need of modifying from our previously working simplistic QoS over the WAN, configured only for voice. I have control of only the core switch, not the site router. We have a completely Cisco based voice setup, with Cisco phones (set up with auto-qos as well at the port level) and a centralized Cisco CallManager cluster over the WAN. I need to modify the following on the port going to the router:
interface GigabitEthernet1/1
description To WAN Router
switchport
switchport access vlan 100
switchport mode access
speed 1000
duplex full
wrr-queue bandwidth 50 255
wrr-queue queue-limit 75 15
wrr-queue random-detect min-threshold 2 70 100
wrr-queue random-detect max-threshold 2 90 100
wrr-queue cos-map 1 2 0
wrr-queue cos-map 2 1 1 2 3 4
wrr-queue cos-map 2 2 6 7
mls qos trust cos
auto qos voip trust
I need to add the capability to add both an additional class for a prioritized data application, lets call it bitching-erp-users-because
I know that I will have to remove auto qos voip trust if I apply a different policy, but I'm unsure what's practically applied -in- auto-qos policy to reapply it with the additional classes. I'm also unsure of the correct way to apply the two data classes in such a way as to ensure the priority of the one application, and the bulk application of the rest.
Internet, please don't fail me now.
interface GigabitEthernet1/1
description To WAN Router
switchport
switchport access vlan 100
switchport mode access
speed 1000
duplex full
wrr-queue bandwidth 50 255
wrr-queue queue-limit 75 15
wrr-queue random-detect min-threshold 2 70 100
wrr-queue random-detect max-threshold 2 90 100
wrr-queue cos-map 1 2 0
wrr-queue cos-map 2 1 1 2 3 4
wrr-queue cos-map 2 2 6 7
mls qos trust cos
auto qos voip trust
I need to add the capability to add both an additional class for a prioritized data application, lets call it bitching-erp-users-because
I know that I will have to remove auto qos voip trust if I apply a different policy, but I'm unsure what's practically applied -in- auto-qos policy to reapply it with the additional classes. I'm also unsure of the correct way to apply the two data classes in such a way as to ensure the priority of the one application, and the bulk application of the rest.
Internet, please don't fail me now.
Soulja
I don't know the details of you network, but what you could do is create an ACL that permits the networks your voice traffic resides on. Then create a class map to match it. Then create a policy map to set the voice class with a high dscp value. Then repeat for the special application. Create an acl to match the ports or networks that the special applicattion is sourcing from or to. The rest of the traffic that you don't mark will just use class default.
ASKER
That's what I was thinking as well. I'm a bit unsure what all is marked related to voice though in order to duplicate "auto qos voip trust." I'm assuming call-control and conversation, but I'm having a hard time finding the actual matching done when using that statement.
I know everything coming from the equipment is pre-marked, but I guess the question is ... to what?
I know everything coming from the equipment is pre-marked, but I guess the question is ... to what?
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My understanding and someone can correct me if I am wrong, if you remove:
mls qos trust cos
auto qos voip trust
The interface will ignore the markings that the equipment is sending. You can then just apply your own policy inbound on that interface.
mls qos trust cos
auto qos voip trust
The interface will ignore the markings that the equipment is sending. You can then just apply your own policy inbound on that interface.
ASKER
Okay, worth a shot. More info once I try applying something.
ASKER
Soulja, I was able to get a working implementation, although it's a bit rough. Thanks for leading me down the right path.
ASKER
I had to modify based on my needs, but the answer was great in helping me see what I should do.
What did you come up with if you don't mind me asking?