VLAN priority on the Catalyst 2950 trunk port

Unanswered Question
Dec 25th, 2008

Hello!

I have a Catalyst 2950 switch. It have one ethernet port with trunk:


interface FastEthernet0/1

switchport trunk allowed vlan 2,92

switchport mode trunk

spanning-tree portfast trunk


The port is connected on radio-channel with 2 Mbps bandwidth. The Vlan 2 have big traffic every time.

Can i do that all traffic on Vlan 92 will have MIN 64 kbps free bandwidth every time on this radio-channel?

Thanks. Dev

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Giuseppe Larosa Thu, 12/25/2008 - 09:12

Hello Dev,

you would need modular QoS to do that and I don't think C2950 supports it


So, I may be wrong, but I don't think you can do it.


Edit:

actually 2950 supports modular QoS inbound so if you can classify and mark traffic on the internal vlans/ports you can then provide some resources to traffic marked in some way.


see


http://www.cisco.com/en/US/docs/switches/lan/catalyst2950/software/release/12.1_22_ea11x/configuration/guide/swqos.html#wp1044930


however, this can work outbound direction only.

on traffic received on fas0/1 you have few to none control.


Hope to help

Giuseppe


DevDimonTSNG Thu, 12/25/2008 - 09:31

Ok, I will study this more later. I hope I will can to resolve this problem by QoS


Thanks

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