[c-nsp] OER Question

Bruce Pinsky bep at whack.org
Tue Dec 6 20:26:40 EST 2011

M K wrote:
> Hi all,
> i have the below OER question
> i have been trying since a while but i am not sure about the solution
> can anyone please help ?
> Configure R4 to be the master controller and R1 and R2 to be the Border routers.
> The OER implementation should be optimized such that when the
> packets with a DSCP of 41 is passing through the network, it is routed out to
> R1 exit interface and also, when a DSCP of 31 is passing through, it is routed
> out to R2 exit interface.
> You are allowed to create extended ACL with one entry to accomplish this task.
> Set active probes only
> For traffic going from Vlan 44 to YY.YY.55.5, set jitter as 40, delay as 20, probe frequency as 2.
> Enable constant probe via all exit interfaces.
> R5 -- SW2 -- SW1 -- R1 F0/0
> R1 S0/0 -- R4 S0/0 , R4 S0/1 -- R2 S0/0
> R2 F0/0 -- SW4 -- SW3
> all the switches are trunk interconnected

The wording on this question sounds suspiciously like a Cisco certification 
question and that you are fishing for an answer.


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