From: mihai (mihai@ngnpath.com)
Date: Wed May 30 2007 - 08:16:10 ART
Here is what I can see on R3 and is similar to all the routers involved
in this small test.
r3#sh access-lists
Extended IP access list 100
10 permit icmp any any echo (65 matches)
20 permit icmp any any echo-reply (40 matches)
r3#
Before flooding the s1/3:
r5#ping 6.6.6.6
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 6.6.6.6, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 28/31/32 ms
r5#
Flooding started:
r3#sh int s1/3
Serial1/3 is up, line protocol is up
Hardware is CD2430 in sync mode
Internet address is 155.1.36.3/24
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec,
reliability 255/255, txload 255/255, rxload 239/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:01:26
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: Class-based queueing
Output queue: 7/1000/64/0 (size/max total/threshold/drops)
Conversations 3/8/16 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 28 kilobits/sec
30 second input rate 60000 bits/sec, 15 packets/sec
30 second output rate 64000 bits/sec, 16 packets/sec
1288 packets input, 661412 bytes, 0 no buffer
Received 11 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1406 packets output, 696106 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
r3#
r3#sh policy-map int s1/3
Serial1/3
Service-policy output: p-icmp
Class-map: icmp (match-all)
59 packets, 6136 bytes
30 second offered rate 2000 bps, drop rate 0 bps
Match: access-group 100
Queueing
Strict Priority
Output Queue: Conversation 24
Bandwidth 20 (kbps) Burst 500 (Bytes)
(pkts matched/bytes matched) 59/6136
(total drops/bytes drops) 0/0
Class-map: class-default (match-any)
3040 packets, 1510159 bytes
30 second offered rate 69000 bps, drop rate 3000 bps
Match: any
r3#sh policy-map int s1/3
Serial1/3
Service-policy output: p-icmp
Class-map: icmp (match-all)
74 packets, 7696 bytes
30 second offered rate 2000 bps, drop rate 0 bps
Match: access-group 100
Queueing
Strict Priority
Output Queue: Conversation 24
Bandwidth 20 (kbps) Burst 500 (Bytes)
(pkts matched/bytes matched) 74/7696
(total drops/bytes drops) 0/0
Class-map: class-default (match-any)
3098 packets, 1539943 bytes
30 second offered rate 69000 bps, drop rate 3000 bps
Match: any
r3#
r3#sh access-lists
Extended IP access list 100
10 permit icmp any any echo (185 matches)
20 permit icmp any any echo-reply (175 matches)
r3#
Tarun Pahuja wrote:
> Mihai,
> What does the show output of Policy-Map say, do you see any
> packets being matched and being put in the prority queue?
>
> Thanks,
> Tarun
>
>
>
>
> On 5/29/07, mihai <mihai@ngnpath.com> wrote:
>> Hi all,
>>
>> Not sure what's going on ...
>> Here is what I have:
>>
>> R5 --Eth--R3--Serial with clock rate 64k--R6
>>
>> IP connectivity ok and ping from R5 to R6 ~ 6x ms
>> Start rtr on R5 to bring the serial between R3 and R6 to 100% usage.
>> Ping from R5 to R6 ~ 800 ms
>>
>> I would like to test priority command with MQC for ping traffic (icmp)
>> My expectation is to get RTT around 6x ms with priority command in place.
>>
>> This is not happening ... and I can't figure out what I'm doing wrong.
>>
>> MQC related config:
>>
>> class-map match-all t1
>> match access-group 100
>> !
>> policy-map p-t1
>> class t1
>> priority 16
>>
>> access-list 100 permit icmp any any echo
>> access-list 100 permit icmp any any echo-reply
>>
>> Service policy output p-t1 on R5,R3 and R6.
>>
>> Any idea what's wrong with this test of mine?
>> Thx.
>>
>> Mihai
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Fri Jun 01 2007 - 06:55:22 ART