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Webcast-Catalyst9k
New Member

Changing the metrics in EIGRP

I have a R1 connected to WAN01 and WAN02 routers.  Both WAN routers redistributing EIGRP routes from the Hub location and my R1 receving the route such as 172.16.1.0 via both WAN01 and WAN02.

I am going the change the metrics on WAN02

router bgp 65100

redistribute EIGRP 100 route-map CHANGE

no auto-summary

route-map CHANGE permit 10

match ip address 99

set metric 2142999 100 255 1 1500

access-list 99 permit 172.16.1.0 0.0.0.255

The question is by changing the metric on WAN02, my R1 will only receive 172.16.10 from WAN01, and will only install the same route from WAN02 when  my WAN01 goes down.  Will changing the metric effect on the actual bandwidth and delay of the interface when the traffic is pass through WAN02 to 172.16.1.0.

Thanks

2 REPLIES
Hall of Fame Super Blue

Re: Changing the metrics in EIGRP

abbas.ali wrote:

I have a R1 connected to WAN01 and WAN02 routers.  Both WAN routers redistributing EIGRP routes from the Hub location and my R1 receving the route such as 172.16.1.0 via both WAN01 and WAN02.

I am going the change the metrics on WAN02

router bgp 65100

redistribute EIGRP 100 route-map CHANGE

no auto-summary

route-map CHANGE permit 10

match ip address 99

set metric 2142999 100 255 1 1500

access-list 99 permit 172.16.1.0 0.0.0.255

The question is by changing the metric on WAN02, my R1 will only receive 172.16.10 from WAN01, and will only install the same route from WAN02 when  my WAN01 goes down.  Will changing the metric effect on the actual bandwidth and delay of the interface when the traffic is pass through WAN02 to 172.16.1.0.

Thanks

Changing the metric does not have any affect on the actual throughput of the interfaces. It will not affect either. If you change the metric be aware that R1 will still receive the advertisement from WAN02 but it should prefer the route from WAN01.

Jon

New Member

Re: Changing the metrics in EIGRP

Hi John,

Thanks for your quick reply.  That exactly what I want.  I want R1 to receive route from WAN02 as well, but doesn't want to be  installed into a routing table until WAN01 goes down.

I just wanted to make sure that I don't introduce any latency by changing the metrics on WAN02 in a case WAN01 goes down and then WAN02 becomes a successor for the route to 172.16.1.10 from R1.

Thanks again !

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