Custom Search

To advertise on this site email advertise@goatnetworking.com

How to configure egress queuing on a Cisco 3560

Site Admin
User avatar
Posts: 368
Joined: Wed Jan 04, 2012 2:36 pm

How to configure egress queuing on a Cisco 3560

Postby admin » Tue Mar 20, 2012 12:29 pm

mls qos ------> Enables QOS on the switch
mls qos map cos-dscp 0 8 16 24 32 46 48 56 ------> Sets the COS-DSCP values

Here is a good example of how you can configure the queues.

mls qos srr-queue output cos-map queue 1 threshold 3 5
mls qos srr-queue output cos-map queue 2 threshold 2 6 7
mls qos srr-queue output cos-map queue 2 threshold 3 4
mls qos srr-queue output cos-map queue 3 threshold 3 3
mls qos srr-queue output cos-map queue 4 threshold 1 2
mls qos srr-queue output cos-map queue 4 threshold 3 0 1


interface range FastEthernet2/1 - 48

srr-queue bandwidth share 10 10 60 20 ------> Queue = 10%, 10%, 60%, 20%
srr-queue bandwidth shape 10 0 0 0 ------> Does not allow the priority queue to exceed 10% of bandwidth
priority-queue out ------> enables priority queue

***I use the 10,10,60,20 method on the LAN. You may want to adjust it to fit your needs.
10% = Priority traffic (For me, Voice)
10% = Network Management (Voice Control, Network management like SSH, RDP, SNMP etc..)
60% = Business critical traffic
20% = Everything else

**Your COS to Queue mappings may need adjusting depending on your needs. I found these to work just fine for me.

Return to QOS

Twitter Facebook

Who is online

Users browsing this forum: No registered users and 1 guest