Ethernet Switches & Routers

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New Contributor
Posts: 3
Registered: ‎01-19-2014

How to change DSCP values on outbound Interface only for specific networks

Good afternoon all,

  I have some networks being routed out a ve and I would like to look at them and if they are certain subnets, I would like to change or make their DSCP values AF31

 

On the ve Interface I currently have an inbound Access List so assuming I can put some type of outbound list on the ve to change dscp values?

 

Currently I am allowing the following networks to route out the Interface (IPs changed for security)

 

100.126.86.0 0.0.0.255
100.126.92.0 0.0.0.63
100.126.92.128 0.0.0.63

........
110.126.92.128 0.0.0.63
110.126.86.0 0.0.0.255
110.126.92.0 0.0.0.63

 

I would like to somehow be able to say any traffic sourced from the first 3 networks above should have their DSCP values changed to AF31 and all other traffic is unchanged.

 

I am totally new to QoS/CoS and have to get this implemented in the very near future so hoping that someone can give me an example of a configuration that might accomplish this.

 

my Virtual Ethernet is currently configured as follows:

 

interface ve 205
port-name *_CustomerSite_*
ip address 192.168.255.49/30
ip access-group CustomerSite in

 

 

I can provide whatever additional information may be necessary to assist. 

 

I really appreciate any feedback and guidance

 

Thanks

Wally

 

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