eigrp autonomous system number 2

[Silverblade]

Is it possible that 2 Autonomous system numbers learn their routing tabels from each other?
I searched all kind of cisco documents and ccna books, but i can't find a clear anwser to the question.

The reason i want to do this is the following:

I,ve got multiple sites that have to ways out of the lan network to another network where they connect to a server.
But because of the load on the dsl lines i want to split the traffic over the 2 lines and only when one of the two lines goes down all trafic will be rerouted to the one that is still up and running.

I hope one of you can tell me the anwser.

tnx in advance

 

[jeter]

I'm thinking only if you redistribute EIGRP into each other....








Spc NVARNG
Tek-TIP Member 19,650

 

[zymurgy01]

You can use route redistribution and or policy mapping.

 

[zymurgy01]

router eigrp 3
redistribute eigrp 5 route-map to_eigrp_3
default-metric 10000 100 255 1 1500

!--- Redistributes EIGRP 5 into EIGRP 3, setting the tags


!--- according to the route map "to_eigrp_3"



router eigrp 5
redistribute eigrp 3 route-map to_eigrp_5
default-metric 10000 100 255 1 1500

!--- Redistributes EIGRP 3 into EIGRP 5


!--- Routes with tag 33 will not be redistributed


!--- due to route map "to_eigrp_5"
!--- Though the default-metric command is not required
!--- when redistributing between different EIGRP processes,
!--- you can use it optionally as shown above to advertise
!--- the routes with specific values for calculating the metric.


route-map to_eigrp_3 deny 10
match tag 55

!--- Route-map statement used to deny any routes that have a tag


!--- of "55" from being redistributed into EIGRP 3


!--- Notice the routes tagged with "55" should be the EIGRP 3 routes


!--- that are redistributed into EIGRP 5


route-map to_eigrp_3 permit 20
set tag 33

!--- Route-map statement used to set the tag on routes


!--- redistributed from EIGRP 5 to EIGRP 3 to "33"


route-map to_eigrp_5 deny 10
match tag 33

!--- Route-map statement used to deny any routes that have a tag


!--- of "33" from being redistributed into EIGRP 5


!--- Notice the routes tagged with "33" should be the EIGRP 5 routes


!--- that are redistributed into EIGRP 3


route-map to_eigrp_5 permit 20
set tag 55

!--- Route-map statement used to set the tag on routes


!--- redistributed from EIGRP 3 to EIGRP 5 to "55"

 

[Silverblade]

Thanks! a star for all of you

 

[zymurgy01]

Welcome, just glad I could help.