From: Bob Sinclair (bsin@cox.net)
Date: Fri Apr 29 2005 - 19:22:33 GMT-3
Gladston,
As Odom so well points out, the shape average command defaults to Be equal to
Bc. If you want no Be, you must explicitly set it to zero, as below:
policy-map SHAPE
class class-default
shape average 96000 9600 0
R1#sh policy-map int
Serial1/0
Service-policy output: SHAPE
Class-map: class-default (match-any)
2 packets, 650 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: any
Traffic Shaping
Target/Average Byte Sustain Excess Interval Increment
Rate Limit bits/int bits/int (ms) (bytes)
96000/96000 1200 9600 0 100 1200
Bob Sinclair
CCIE #10427, CCSI 30427, CISSP
www.netmasterclass.net
----- Original Message -----
From: gladston@br.ibm.com
To: ccielab@groupstudy.com
Sent: Friday, April 29, 2005 4:18 PM
Subject: Byte Limit on CB Shaping
Do you know how to configure Be when using CB Shaping?
On the following example I did not specified it, and it defaults to 9600
(Wendell's DQoS indicates that too)
As the Byte Limit showed is Bc + Be (2400), I am considering it is really
using Be. (which would be the same with GTS, that shows Be = Bc and byte limit
equaus Be/8 + Bc/8).
Would you agree?
Rack2R3#sh pol
Rack2R3#sh policy-map int ser 1/3
Serial1/3
Service-policy output: shape-all
Class-map: class-default (match-any)
468 packets, 418802 bytes
5 minute offered rate 3000 bps, drop rate 0 bps
Match: any
Traffic Shaping
Target/Average Byte Sustain Excess Interval Increment
Rate Limit bits/int bits/int (ms) (bytes)
96000/96000 2400 9600 9600 100 1200
Adapt Queue Packets Bytes Packets Bytes Shaping
Active Depth Delayed Delayed Active
- 0 389 417671 0 0 no
Service-policy : rtp
Class-map: rtp (match-all)
0 packets, 0 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: protocol rtp audio
Queueing
Strict Priority
Output Queue: Conversation 24
Bandwidth 32 (kbps) Burst 800 (Bytes)
(pkts matched/bytes matched) 0/0
(total drops/bytes drops) 0/0
Class-map: class-default (match-any)
468 packets, 418802 bytes
5 minute offered rate 3000 bps, drop rate 0 bps
Match: any
R3 config:
ip cef
!
class-map match-all rtp
match protocol rtp audio
!
!
policy-map rtp
class rtp
priority 32
policy-map shape-all
class class-default
shape average 96000 9600
service-policy rtp
!
int ser 1/3
encap frame-relay
ip address 142.20.23.3 255.255.255.0
ip router isis
isis circuit-type level-2-only
isis authentication mode md5 level-2
isis authentication key-chain Isis-authen
frame-relay map clns 200 broadcast
frame-relay map ip 142.20.23.2 200 broadcast
service-policy output shape-all
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