Do the ports of cisco catalyst 2950 switch support rate limit?

[parazhang]

Now we want to limit the ports of 2950 switch to certain bandwidth,such as 512K,1M,2M etc..,Input and/or Output direction,If we can do,how should we deal with?

 

[rossiya]

This seems to be a popular question. First the 2950 must be 'enhanced image'. Also you can only regulate the input, not the output. The 10/100 ports can be regulated in one megabit increments, while the gbics are regulated in multiples of eight megabits

I am waiting on another thread to see if it is possible to prioritize traffic at the same time

 

[parazhang]

ok,thx!
BTW,could you tell me how to write the IOS CLI commands?

best regards

 

[rossiya]

Sure it's very easy to limit a port:

!
class-map match-all match-any
match access-group 1
!
policy-map 8Mbps
class match-any
police 16000000 32768 exceed-action drop
!
.....
!
interface FastEthernet0/24
description "customer downlink to LAN"
service-policy input 8Mbps
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
description "uplink to core router"

Notice I named it 8mbps though it is actually configured for 16mbits and 32k/megabit for bursting. Notice that 'match-any' is my class name, which is bad form as it is an IOS reserved word

 

[parazhang]

thank u very much.
but by my workmate's viewpoint,the upper feature only applies on 2950G platform,not 2950 that only with 10/100 ports,is it true?

 

[parazhang]

BTW,I have see your question "Cisco Catalyst 2950G-24 Port EI Software priority rate-limit",I have a best ebook of QoS,maybe it can help u resolve this question,but I don't know how to send it to u,pls contact me
skypearazhang1120

 

[rossiya]

I think the 10/100 2950s are not EI, only the 2950s with gigabit ports have the EI AFAIK. The 10/100 is probably an SI

Yeah if you have the book title I can buy it no problems

 

[parazhang]

aha,it's an ebook,and if you want,i'll send it to you free.