From: gladston@br.ibm.com
Date: Mon Sep 05 2005 - 14:01:28 GMT-3
Thanks Chris,
It is clear now about dual FIFO queue size.
Reading again the doc you suggested...
....I did not notice before, but 'queue-limit xxx' under CBWFQ does not
change the Output queue size of the class class-default.
The strange is that it works for other class, like class 'silver' on the
following test.
It is necessary to use 'frame-relay holdq <size>', under map-class, to
change the size of queue class-default. And this command just change the
size of the class-default.
Any comments appreciated.
Tests:
policy-map Manage-queue-under-FRTS
class silver
bandwidth 16
queue-limit 400 <-------------
class class-default
fair-queue
queue-limit 500 <-------------
Rack2R5(config-pmap-c)#do sh fram pvc 502
Service-policy output: Manage-queue-under-FRTS
Class-map: silver (match-all)
137 packets, 12604 bytes
1 minute offered rate 0 bps, drop rate 0 bps
Match: ip precedence 6
Queueing
Output Queue: Conversation 25
Bandwidth 16 (kbps) Max Threshold 400 (packets)
<--------------------------
(pkts matched/bytes matched) 0/0
(depth/total drops/no-buffer drops) 0/0/0
Class-map: class-default (match-any)
155 packets, 157073 bytes
1 minute offered rate 5000 bps, drop rate 0 bps
Match: any
Queueing
Flow Based Fair Queueing
Maximum Number of Hashed Queues 16
(total queued/total drops/no-buffer drops) 0/0/0
Output queue size 0/max total 600/drops 0 <----------------------------
Rack2R5(config-pmap-c)#map-class frame-relay Shaping-for-R2
Rack2R5(config-map-class)#fram holdq 333
Rack2R5(config-map-class)#do sh fram pvc 502
PVC Statistics for interface Serial0/0 (Frame Relay DTE)
Service-policy output: Manage-queue-under-FRTS
Class-map: silver (match-all)
348 packets, 31921 bytes
1 minute offered rate 0 bps, drop rate 0 bps
Match: ip precedence 6
Queueing
Output Queue: Conversation 25
Bandwidth 16 (kbps) Max Threshold 400 (packets)
(pkts matched/bytes matched) 0/0
(depth/total drops/no-buffer drops) 0/0/0
Class-map: class-default (match-any)
385 packets, 389436 bytes
1 minute offered rate 6000 bps, drop rate 0 bps
Match: any
Queueing
Flow Based Fair Queueing
Maximum Number of Hashed Queues 16
(total queued/total drops/no-buffer drops) 0/0/0
Output queue size 0/max total 333/drops 0
Cordialmente,
------------------------------------------------------------------
Alaerte Gladston Vidali
IBM Global Services - SO
Tel.55+11+2121-2879 Fax:55+11+2121-2449
"Chris Lewis \(chrlewis\)" <chrlewis@cisco.com>
05/09/2005 11:21
To
Alaerte Gladston Vidali/Brazil/IBM@IBMBR, <ccielab@groupstudy.com>
cc
Subject
RE: Dual Fifo Queue Size
AFAIK, that is the only way to change these values, I don't think you
can change them independently of each other.
http://www.cisco.com/en/US/tech/tk543/tk544/technologies_tech_note09186a
00800a4754.shtml
Has a good discussion of this in case you haven't seen it.
Chris
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
gladston@br.ibm.com
Sent: Monday, September 05, 2005 7:57 AM
To: ccielab@groupstudy.com
Subject: Dual Fifo Queue Size
Do you know if it is possible to change the size of the interface high
queue when enabling dual fifo on the interface?
I could just change it indirectly, using 'hold-queue 3000 ou'.
It seems the high queue is two times the normal queue.
Output queue: high size/max/dropped 0/6000/0
Output queue: 0/3000 (size/max)
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