Hi All,
I have spend a considerable amount of time trying to get me head around the QOS marking between the 3750 and the 3850. Basically please look at the configuration below, I have attempted to map the configurations from my 3750 to my 3850 but there is a-little confusion on my part that I would like somebody to clear up.
3750 --- Maps COS frames to fresh hold in each queue simple enough
mls qos srr-queue output cos-map queue 1 threshold 3 5
mls qos srr-queue output cos-map queue 2 threshold 3 3 6 7
mls qos srr-queue output cos-map queue 3 threshold 3 2 4
mls qos srr-queue output cos-map queue 4 threshold 2 1
mls qos srr-queue output cos-map queue 4 threshold 3 0
threshold values assigned to each queue
switch1#show mls qos queue-set 2
Queueset: 2
Queue : 1 2 3 4
----------------------------------------------
buffers : 16 6 17 61
threshold1: 149 118 41 42
threshold2: 149 118 68 72
reserved : 100 100 100 100
maximum : 149 235 272 242
Now I need to translate this to 3850 MQC Config....
class mapmatch-any cos7
match cos 7
class mapmatch-any cos6
match cos 6
class mapmatch-any cos5
match cos 5
class mapmatch-any cos4
match cos 4
class mapmatch-any cos3
match cos 3
class mapmatch-any cos2
match cos 2
class mapmatch-any cos1
match cos 1
class mapmatch-any cos1
match cos 0
policy map Queue-Limit
class Queue_1
queue-limit cos 5 percent 100 < --- threshold 3 is by default 100% so I believe this threshold in the queue should be 100%
class Queue_2
queue-limit cos 3 percent 100 < --- threshold 3 is by default 100% so I believe this threshold in the queue should be 100%
queue-limit cos 6 percent 100 < --- threshold 3 is by default 100% so I believe this threshold in the queue should be 100%
queue-limit cos 7 percent 100 < --- threshold 3 is by default 100% so I believe this threshold in the queue should be 100%
class Queue_3
queue-limit cos 2 percent 100 < --- threshold 3 is by default 100% so I believe this threshold in the queue should be 100%
queue-limit cos 4 percent 100 < --- threshold 3 is by default 100% so I believe this threshold in the queue should be 100%
class Queue_4
queue-limit cos 1 percent 72 < --- threshold 2 is 72 percent
queue-limit cos 0 percent 100 < --- threshold 3 is by default 100% so I believe this threshold in the queue should be 100%
Just confirming that my thinking makes sense. It looks correct to me.
kind regards
Carl Williams
