07-29-2010 10:18 AM - edited 03-06-2019 12:14 PM
Hi,
I'm looking for the following solution. I want to put CoS 3 and 5 in the queue 2. When CoS 5 packets reach the 75% of the queue 2 they have to be dropped. But the frames with CoS 3 should continue to fill queue until it reach its maximim.
Thanks a lot in advance.
07-29-2010 11:16 AM
Hi,
You can use srr-queue to assign certain threshold to certain DHCP value
have a look at this paper for more info:
HTH
Reza
07-29-2010 11:42 AM
Hi Reza,
Your answer doesn't help me. I know well that I can assign packets according the DSCP or CoS to queues and threshold. I need solution how to do the WTD of this queue according the CoS value.
07-29-2010 12:31 PM
The solution should look something like this:
mls qos srr-queue output cos-map queue 2 threshold 1 5
mls qos srr-queue output cos-map queue 2 threshold 2 3
mls qos queue-set output 1 threshold 2 75 100 100 100
and than applied on interface:
queue-set 1
I need somebody to prove this solution.
07-29-2010 01:38 PM
I did load this on a 3750-E but it does not seem to work.
may be I am missing someting
here is the config:
mls qos srr-queue output cos-map queue 2 threshold 1 5
mls qos srr-queue output cos-map queue 2 threshold 2 3
mls qos queue-set output 2 threshold 2 75 100 100 100
mls qos
!
interface TenGigabitEthernet1/0/1
switchport trunk encapsulation dot1q
switchport trunk native vlan 899
switchport trunk allowed vlan 100,101
switchport mode trunk
queue-set 2
end
Here is the show command;
Switch-B(config-if)#do sh mls qos queue-set 2
Queueset: 2
Queue : 1 2 3 4
----------------------------------------------
buffers : 25 25 25 25
threshold1: 100 75 100 100
threshold2: 100 100 100 100
reserved : 50 100 50 50
maximum : 400 100 400 400
Switch-B(config-if)#
Switch-B(config-if)#do sh mls qos queue-set 1
Queueset: 1
Queue : 1 2 3 4
----------------------------------------------
buffers : 25 25 25 25
threshold1: 100 75 100 100
threshold2: 100 100 100 100
reserved : 50 100 50 50
maximum : 400 100 400 400
Switch-B(config-if)#
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