Throttling Host Bandwidth on Layer 2 Access Switch?

Answered Question
Sep 22nd, 2010

Is there a way to limit bandwith on an access port? For example based on the configuration below:

interface fastethernet0/1

description Server

switchport mode access

switch acc vlan 10

speed 100

duplex full

spanning-tree portfast

I'm familiar with rate limiting and QoS at the layer 3 level, but would like to do it at the switch port level.

Thanks in advance.

I have this problem too.
0 votes
Correct Answer by Julio Garcia about 6 years 2 months ago

hi David,

This is how i do it ...

make a policy

policy-map 10Mbps-LIMIT
  class class-default
   police cir 10000000 bc 1000000 be 1000000 conform-action transmit exceed-action drop

then on layer 2 switch port..

int x/x

service-policy input 10Mbps-LIMIT

one caveat, i think you can only do in (IN) direction only

im not an expert by any means , but i spent ages trying to find a way that actually works.

try it out and let me kno.

Correct Answer by Lei Tian about 6 years 2 months ago

Hi,

Check 'Campus QoS Design' section in this doc.

http://www.cisco.com/en/US/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoSDesign.html

The untrust model configuration has examples of policing.

HTH,

Lei Tian

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Overall Rating: 5 (2 ratings)
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Lei Tian Wed, 09/22/2010 - 05:47

Hi,

Most switches support ingress policing on physical access port; what platform are you using?

Regards,

Lei Tian

davidhuynh5 Wed, 09/22/2010 - 10:55

Cat3560, Cat4506, and Cat6506. Sample config wuold be appreciated. Thanks.

Correct Answer
Julio Garcia Wed, 09/22/2010 - 14:40

hi David,

This is how i do it ...

make a policy

policy-map 10Mbps-LIMIT
  class class-default
   police cir 10000000 bc 1000000 be 1000000 conform-action transmit exceed-action drop

then on layer 2 switch port..

int x/x

service-policy input 10Mbps-LIMIT

one caveat, i think you can only do in (IN) direction only

im not an expert by any means , but i spent ages trying to find a way that actually works.

try it out and let me kno.

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