From: Hedi Abdelkafi (Hedi.Abdelk@simac.lu)
Date: Sat Nov 09 2002 - 06:08:34 GMT-3
Hi,
I'm trying to configure LLQ in my lab but I have problem to understand how it really works.
I have the following topology :
R1----Ethernet Hub---------R3-----Serial/56Kbps------R4
R2----------|
I would like that all ICMP packets from R1 to R4 will be given higher priority (in term of bandwidth) than all other traffic (example ICMP from R2 to R4).
On R3 :
class-map match-all PRIORITY
match access-group 100
!
policy-map LLQ
class PRIORITY
priority 50 32
class class-default
bandwidth percent 1
access-list 100 permit icmp host 10.0.1.1 host 20.0.1.1 REM : 10.0.1.1 is R1 Ethernet interface and 20.0.0.1 is R4 Ethernet interface.
interface Serial0
.....
max-reserved-bandwidth 90
service-policy output LLQ
Now, when I launch two ICMP flow (one from R1 to R4 and the other one from R2 to R4), all ICMP traffic from R1 is dropped and all traffic from R2 is NOT dropped.
This is opposite result that I would like to have !!!
R3#sh policy-map interface serial 0
Serial0
Service-policy output: LLQ
Class-map: PRIORITY (match-all)
1942 packets, 2321728 bytes
5 minute offered rate 24000 bps, drop rate 21000 bps
Match: access-group 100
Queueing
Strict Priority
Output Queue: Conversation 24
Bandwidth 50 (kbps) Burst 32 (Bytes)
(pkts matched/bytes matched) 1514/1678016
(total drops/bytes drops) 1514/1678016
Class-map: class-default (match-any)
3482 packets, 3421800 bytes
5 minute offered rate 27000 bps, drop rate 0 bps
Match: any
Queueing
Output Queue: Conversation 25
Bandwidth 1 (%) Max Threshold 64 (packets)
(pkts matched/bytes matched) 2213/2395425
(depth/total drops/no-buffer drops) 0/0/0
What's wrong is my config ?
Any advices (even on how LLQ is working) ?
Thanks for your help.
Bye
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