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Question on 'sh queueing int' after applying QoS config on 6500 linecard

I'm applying the following QoS config to a 10 gig line card with 1P7Q8T queueing structure. Basically, I'm setting up queue 2 for best-effort at 60% and the priority queue for telepresence and voice at 30%, queue 1 at 5% and the rest of the queues at 1%.

int t1/1

wrr-queue queue-limit 5 60 1 1 1 1 1

wrr-queue bandwidth 5 60 1 1 1 1 1

priority-queue queue-limit 30

wrr-queue random-detect 1

wrr-queue random-detect 2

wrr-queue random-detect 3

wrr-queue random-detect 4

wrr-queue random-detect 5

wrr-queue random-detect 6

wrr-queue random-detect 7

wrr-queue random-detect max-threshold 1 100 100 100 100 100 100 100 100

wrr-queue random-detect min-threshold 1 80 100 100 100 100 100 100 100

wrr-queue random-detect max-threshold 2 100 100 100 100 100 100 100 100

wrr-queue random-detect min-threshold 2 80 100 100 100 100 100 100 100

wrr-queue random-detect max-threshold 3 100 100 100 100 100 100 100 100

wrr-queue random-detect min-threshold 3 80 100 100 100 100 100 100 100

wrr-queue random-detect max-threshold 4 100 100 100 100 100 100 100 100

wrr-queue random-detect min-threshold 4 80 100 100 100 100 100 100 100

wrr-queue random-detect max-threshold 5 100 100 100 100 100 100 100 100

wrr-queue random-detect min-threshold 5 80 100 100 100 100 100 100 100

wrr-queue random-detect max-threshold 6 100 100 100 100 100 100 100 100

wrr-queue random-detect min-threshold 6 80 100 100 100 100 100 100 100

wrr-queue random-detect max-threshold 7 100 100 100 100 100 100 100 100

wrr-queue random-detect min-threshold 7 80 100 100 100 100 100 100 100

wrr-queue cos-map 1 1 1

wrr-queue cos-map 2 1 0

wrr-queue cos-map 3 1 2

wrr-queue cos-map 4 1 3

wrr-queue cos-map 5 1 6

wrr-queue cos-map 6 1 7

priority-queue cos-map 1 4 5

mls qos trust dscp

When I do a 'show run int t1/1'  I don't understand a couple things.  Here's the 'show run':

interface TenGigabitEthernet1/1
no ip address
shutdown
wrr-queue bandwidth 5 60 1 1 1 1 1
priority-queue queue-limit 30
wrr-queue queue-limit 5 60 1 1 1 1 1
wrr-queue random-detect min-threshold 1 80 100 100 100 100 100 100 100
wrr-queue random-detect min-threshold 2 80 100 100 100 100 100 100 100
wrr-queue random-detect min-threshold 3 80 100 100 100 100 100 100 100
wrr-queue random-detect min-threshold 4 80 100 100 100 100 100 100 100
wrr-queue random-detect min-threshold 5 80 100 100 100 100 100 100 100
wrr-queue random-detect min-threshold 6 80 100 100 100 100 100 100 100
wrr-queue random-detect min-threshold 7 80 100 100 100 100 100 100 100
wrr-queue random-detect max-threshold 1 100 100 100 100 100 100 100 100
wrr-queue random-detect max-threshold 2 100 100 100 100 100 100 100 100
wrr-queue random-detect 4
wrr-queue random-detect 5
wrr-queue random-detect 6
wrr-queue random-detect 7
wrr-queue cos-map 1 1 1
wrr-queue cos-map 2 1 0
wrr-queue cos-map 3 1 2
wrr-queue cos-map 4 1 3
wrr-queue cos-map 5 1 6
wrr-queue cos-map 6 1 7
priority-queue cos-map 1 4 5
mls qos trust dscp
end

Questions:

1.  Why does this show only two 'max-threshold', only for queues 1 & 2 - not for the other queues like is does for 'min-threshold'

2.  Why does it show 'wrr-queue random-detect' for queues 4,5,6,7 and not for queues 1,2,3?

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Question on 'sh queueing int' after applying QoS config on 6500

It is the same thing, the default has queues 4-7 disabled.

WRED disabled queues:     4 5 6 7

So when we enable them, they are added to the running configuration.

Thanks,

Jeff

5 REPLIES
Cisco Employee

Question on 'sh queueing int' after applying QoS config on 6500

Is it possible to get a show module from your 6500? 

Different line cards have different queueing strategies.

Thanks,

Jeff

New Member

Question on 'sh queueing int' after applying QoS config on 6500

Here's the sho mod: The line card in question is module 1.

ROC-RS6509-EngLab>sh mod

Mod Ports Card Type                              Model              Serial No.

--- ----- -------------------------------------- ------------------ -----------

  1    4  CEF720 4 port 10-Gigabit Ethernet      WS-X6704-10GE      SAL1530KUT5

  2   48  SFM-capable 48 port 10/100/1000mb RJ45 WS-X6548-GE-TX     SAD0813095Y

  3    6  Firewall Module                        WS-SVC-FWM-1       SAD1148022X

  4   24  CEF720 24 port 1000mb SFP              WS-X6724-SFP       SAD075006BY

  5    2  Supervisor Engine 720 (Active)         WS-SUP720-BASE     SAD075201GN

  8   10  WiSM WLAN Service Module               WS-SVC-WISM-1-K9   SAD102800P2

Cisco Employee

Question on 'sh queueing int' after applying QoS config on 6500

So anytime there is a default configuraiton, it does not show up in the running configuration.

Here is the default of a show queueing interface on a 6704 line card:

F340.05.06-6500-2#show queueing interface ten2/1 Interface TenGigabitEthernet2/1 queueing strategy: Weighted Round-Robin

Port QoS is enabled

Port is untrusted

Extend trust state: not trusted [COS = 0]

Default COS is 0

   Queueing Mode In Tx direction: mode-cos

   Transmit queues [type = 1p7q8t]:

   Queue Id   Scheduling Num of thresholds

   -----------------------------------------

       01         WRR                 08

       02         WRR                 08

       03         WRR                 08

       04         WRR                 08

       05         WRR                 08

      06         WRR                 08

       07         WRR                 08

       08         Priority           01

   WRR bandwidth ratios: 100[queue 1] 150[queue 2] 200[queue 3]

0[queue 4]   0[queue 5]   0[queue 6]   0[queue 7]

   queue-limit ratios:     50[queue 1] 20[queue 2] 15[queue 3]

0[queue 4]   0[queue 5]   0[queue 6]   0[queue 7] 15[Pri Queue]

   queue tail-drop-thresholds

   --------------------------

   1     70[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

   2     70[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

   3     100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

   4     100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

   5     100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

   6     100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

   7     100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

   queue random-detect-min-thresholds

   ----------------------------------

     1   40[1] 70[2] 70[3] 70[4] 70[5] 70[6] 70[7] 70[8]

     2   40[1] 70[2] 70[3] 70[4] 70[5] 70[6] 70[7] 70[8]

     3   70[1] 70[2] 70[3] 70[4] 70[5] 70[6] 70[7] 70[8]

     4   100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

     5   100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

     6   100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

     7   100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

   queue random-detect-max-thresholds

   ----------------------------------

     1   70[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

     2   70[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

     3   100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

     4   100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

     5   100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

     6   100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

     7   100[1] 100[2] 100[3] 100[4] 100[5] 100[6] 100[7] 100[8]

Since we arent changing the MAX, the command does not show up in the show run.

Let me know if you have any further questions.

Thanks,

Jeff

New Member

Question on 'sh queueing int' after applying QoS config on 6500

One last question.

Any idea why the sh run only shows wrr-queue random-detect for 4,5,6,7 and not 1,2,3?

wrr-queue random-detect max-threshold 2 100 100 100 100 100 100 100 100

wrr-queue random-detect 4

wrr-queue random-detect 5

wrr-queue random-detect 6

wrr-queue random-detect 7

wrr-queue cos-map 1 1 1

Cisco Employee

Question on 'sh queueing int' after applying QoS config on 6500

It is the same thing, the default has queues 4-7 disabled.

WRED disabled queues:     4 5 6 7

So when we enable them, they are added to the running configuration.

Thanks,

Jeff

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