VLAN Bandwidth Management

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Mar 17th, 2006
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How we can share a Bandwidth in a VLAN,

I mean share a Bandwidth in a single VALN Clients,

can we do it through a IOS configuration or is there any hardware for this solution,

Note: Currently we are using L3(3550) & L2(2950) switches.

L2 in VTP client Mode, L3 in VTP Server Mode, and all VLANS are creat in L3 Switches.

Thank You

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nethelper Fri, 03/17/2006 - 05:38
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what exactly are you trying to accomplish ? Do you want to assign a certain bandwidth to a single client in a VLAN ?



mansoor_nawaz78 Fri, 03/17/2006 - 19:57
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Thank You, for a reply,

I would like to share a Bandwidth between all Clients of VLAN, e.g

If i define a VLAN "320" i apply a fix bandwidth to this VLAN, 256Kbps, now every client of this VLAN share this bandwidth, if 4 Client in VLAN 320, every client share 64K, if 10 Client in 320 VLAN every cleint share 25.6K Bandwidth.

I am waiting for ur reply,

Thank You Again

nethelper Sat, 03/18/2006 - 00:23
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Hello Mansoor,

understood, thanks for the clarification. I am not sure if this sort of dynamic bandwidth allocation is possible with just the IOS on the 3750. You can definitely police the bandwidth per user, but this would be a static allocation:


class class-default

police 100000 12500 exceed-action policed-dscp-transmit


interface FastEthernet0/1

service-policy output LIMIT_BANDWIDTH

service-policy input LIMIT_BANDWIDTH

This example would limit each port to 100K of traffic, in case more traffic is sent, that traffic would be marked down according to a policed DSCP map...



mansoor_nawaz78 Sat, 03/18/2006 - 01:14
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Ok thank you,

I am using this sort of configuration, but i would like to limt the Bandwidth in a VLAN.


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