From: Nikolai Tsankov (ntsankov@san.rr.com)
Date: Thu Oct 07 2004 - 23:28:14 GMT-3
I see your point, it could make QoS administration easier overall for the
whole switch, or a cluster of switches. A single service policy applied to
a range of interfaces would make it easier, if that is what you mean...
Nikolai
-----Original Message-----
From: Carlos G Mendioroz [mailto:tron@huapi.ba.ar]
Sent: Thursday, October 07, 2004 2:54 AM
To: nikolai
Cc: Groupstudy Email (E-mail)
Subject: Re: Classifying Traffic on a Per-Port Per-VLAN Basis by Using
Class Maps
What about using the same configuration for all your access ports,
independently of which vlan they belong ?
If you look at the port level, it may sound senseless, but if you look
at the switch level, it may be easier to mantain/understand.
Just a thought.
nikolai wrote:
> I am a bit confused about the functionality & application of this QoS
> feature. Cisco says that "It is supported only on an ingress port
> configured as a trunk, or as a static-access port", but I can't understand
> how would an access port deal with the class with a "match vlan", if it is
> receiving only its own VLAN frames. I can, however, see that a trunk port
> would benefit from matching VLAN IDs and manipulating them as configured.
>
> Here is the example form Cisco's 3550 config guide:
> ***************************************************
> Switch(config)# class-map match-any dscp_class
> Switch(config-cmap)# match ip dscp 9
> Switch(config-cmap)# exit
>
> Switch(config)# class-map match-all vlan_class
> Switch(config-cmap)# match vlan 10 20-30 40
> Switch(config-cmap)# match class-map dscp_class
> Switch(config-cmap)# exit
>
> Switch(config)# policy-map policymap2
> Switch(config-pmap)# class vlan_class
> Switch(config-pmap-c)# police 80000 8000 exceed-action drop
> Switch(config-pmap-c)# exit
> Switch(config-pmap)# exit
>
> Switch(config)# interface gigabitethernet0/1
> Switch(config-if)# service-policy input policymap2
> **************************************************
> Thanks,
>
> Nikolai Tsankov
> niko@4ovek.com
>
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-- Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
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