Rate Limiting feature on Cat3550 Switch

[valastra]

Hello,

Can somebody give me docs on how to configure rate limiting feature of Cat3550 switch. What is the required IOS image for this feature.

Looking forward to hear your great ideas.

Thank you.

Vivira

[zaoaz]

Hi,

Cat3550 swithced dont support traffic shaping. But you can use qos commands, you can use policy maps for rate limiting. you can use this link for qos on 3550,

http://www.cisco.com/en/US/products/hw/switches/ps646/products_configuration_guide_chapter09186a0080212067.html

[sbhadrav@cisco.com]

In a catalyst switch (WS-C3550X-48P) we have the following configurations:
#show run interface g1/0/27
Building configuration...
Current configuration : 155 bytes!
interface GigabitEthernet1/0/27
switchport access vlan 2
switchport mode access
speed 10                        ! Set Interface speed to 10 Mbps
srr-queue bandwidth limit 10    ! Limit BW to 10% of the set speed
spanning-tree portfast
end
#
I have been trying to limit the interface rate to 1 Mbps but what I see is this:

#show interfaces g1/0/27 | include rate
Queueing strategy: fifo
 5 minute input rate 7643000 bits/sec, 683 packets/sec
5 minute output rate 348000 bits/sec, 516 packets/sec
The output rate is less than the intended limit but the input rate is nearly 7 times greater!