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rate limiting help


Hi, my isp provider is limiting my server's traffic by port. but there are some data rsync in my local network. so i told them change into base on ip limited.

I read the document on cisco web site and  in

and it support class /  class-map and police police map command and also MLS QOS COS and the isp's switch infos are:

Switch#show version

Cisco Internetwork Operating System Software

IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA5a, RELEASE SOFTWARE (fc2)

Copyright (c) 1986-2005 by cisco Systems, Inc.

Compiled Fri 16-Sep-05 15:18 by antonino

Image text-base: 0x80010000, data-base: 0x80566000

ROM: Bootstrap program is C2950 boot loader

Switch uptime is 1 year, 10 weeks, 5 days, 6 hours, 41 minutes

System returned to ROM by power-on

System image file is "flash:/c2950-i6q4l2-mz.121-22.EA5a.bin"

cisco WS-C2950-24 (RC32300) processor (revision Q0) with 21025K bytes of memory.

Processor board ID FOC0728X34B

Last reset from system-reset

Running Standard Image

24 FastEthernet/IEEE 802.3 interface(s)

32K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address: 00:12:80:E2:DB:C0

Motherboard assembly number: 73-5781-13

Power supply part number: 34-0965-01

Motherboard serial number:  FOC082683HW

Power supply serial number: DAB0847LP19

Model revision number: Q0

Motherboard revision number: A0

Model number: WS-C2950-24

System serial number: FOC0728X34B

Configuration register is 0xF

and the below command is i searched:


Switch(config)#mls qos

Switch(config)#access-list 10 permit

Switch(config)#access-list 100 permit any

Switch(config)#access-list 11 permit

Switch(config)#access-list 111 permit any

Switch(config)# class-map user1-up

Switch(config-cmap)# match access-group 10

Switch(config-cmap)# exit 

Switch(config)# class-map user2-up

Switch(config)# class-map user1-down

Switch(config-cmap)# match access-group 100

switch(config)# class-map user2-down

Switch(config-cmap)# match access-group 111

Switch(config-cmap)# exit   

Switch(config)# policy-map user1-up //定义PC1上行的速率为1M 

Switch(config-pmap)# class user1-up 

Switch(config-pmap-c)# trust dscp 信任差分服务代码点,用来对每一类流量实施各种QOS策略,用户进来的数据包的DSCP缺省都为0 

Switch(config-pmap-c)# police 1000000 65536 exceed-action drop 任何超过策略限制速率的通信流将会被丢弃(bits、bytes)

Switch(config)# policy-map user2-up //定义PC2上行的速率为2M 

Switch(config-pmap)# class user2-up 

Switch(config-pmap-c)# trust dscp

Switch(config-pmap-c)# police 2000000 65536 exceed-action drop 

Switch(config)# policy-map user-down

Switch(config-pmap)# class user1-down

Switch(config-pmap-c)# trust dscp 

Switch(config-pmap-c)# police 1024000 1024000 exceed-action drop 

Switch(config-pmap-c)# exit 

Switch(config-pmap)# class user2-down

Switch(config-pmap-c)# trust dscp 

Switch(config-pmap-c)# police 2048000 1024000 exceed-action drop 

Switch(config-pmap-c)# exit


and here is my questions:

1、Can C2950-I6Q4L2-M support MLS QOS ?

2、I told the guy not using MLS QOS , Can just using Police and Class map to limited rate base on ip?

3、the isp guy said that this plamform(C 2950) not support MLS can not upate the ios to support it, is ture?

4、if it can upate ios to support MLS QOS ,which ios can do is?

thanks! sorry for the terrible english

johnson chen

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