I have a number of switches in my network, and a number of VLANs running across each. I want to guarantee 1 particular VLAN is given priority when traffic is heavy, to ensure quality of the connection.
Recommended QoS practice is to deploy it end to end. Your proposed setting will only affect output queues of the interface on this one particular switch. In any case, you should at least define which COS belongs to what queue using
mls qos srr-queue output cos-map queue X threshold X COS-NUMBER
Along with setting the COS on the switch ports, you have to assin the bandwidth to the internal switchport queues for handling the traffic with the priority. By default if you have the COS value set as the priority 5, the last port queue will become the strict priority queue and will get the guranted bandwidth of 40 % on the ports. You have to allocate the bandwidth on the switchports as well using the command " wrr-queue bandwidth ".
You have to map the proper COS value to the respective queue so that it gets the guaranted bandwitdh using the command "wrr-queue map cos " command. You can also map the COS to DSCP vlaues and then trust the dscp vlaue on the trunk ports if you want the end-end QOS to be extended over the WAN.
Please see the link below for QOS config on 3560 switches:
I don't see any problem with that. On the 3560, Ingress Queues go 90/10, and Egress goes 25/25/25/25. Traffic that is CoS 5 goes in to Q2 of the Ingress Queue and Q1 of Egress. You might want to use "priority-queue out" to make sure Q1 on the Egress side gets prioritized.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.