Define a route-map to apply priority to the packet.
route-map ApplyPriority permit 10
match ip address 101
set ip precedence
route-map ApplyPriority permit 20
where. precedence value = 0-7
Apply this route-map on a policy routing configuraiton.
int e0
ip policy route-map ApplyPriority
Please note, that in this configuraiton, all packets coming via ethernet 0 matching access-list 101 wil be marked with the assigned prirority in the TOS bit field.
Also note that Policy routing causes, the router to process switch the packets
which can be an overhead.
Another way to mark packets say if you are using Voice over IP , is to do that in the dial-peer itself.
We have just implemented the method proposed by "thisisshanky". A question I am struggling with:
We have a central location "A" connected to the internet, and a satellite site "B" which is connected to A by a 128kbps leased circuit. We need to give priority on this link to a particular server at B.
We have applied this IP priority config to the 1720 router at B, as follows:
conf t
access-list 1 permit 10.10.17.11
priority-list 1 protocol ip high list 1
priority-list 1 interface Serial0 high
priority-list 2 default low
interface Serial0
priority-group 1
Now I am thinking that we will need to apply a similar config to the 3661 router at A, giving priority to traffic destined for the server at B. If we don't do this, then surely all packets will travel across the link to B before being queued?
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