packet loss monitoring and automatic rerouting

marcusaureliusbrutus

Hi,

I need an expert recommendation on the best way to monitor routes for packet loss and implement a failover mechanism should packet loss be encountered.
I am a bit familiar with sla and object tracking however I am not sure whether these options would allow the below scenario.

scenario:

5 pings to a remote IP
3 out of 5 ping failures or more would activate track applied on static route.

Also, is there a dynamic protocol that covers packet loss as well and not just a link failure?

Thanks in advance.

Cucumber

I would not call myself an expert, but you might want to take a look at Cisco's IOS Embedded Event Manager technology (EEM) for things like that.

Good luck.

ilcram19-2

marcusaureliusbrutus wrote: »

Hi,

I need an expert recommendation on the best way to monitor routes for packet loss and implement a failover mechanism should packet loss be encountered.
I am a bit familiar with sla and object tracking however I am not sure whether these options would allow the below scenario.

scenario:

5 pings to a remote IP
3 out of 5 ping failures or more would activate track applied on static route.

Also, is there a dynamic protocol that covers packet loss as well and not just a link failure?

Thanks in advance.

yes it would with sla tracking you can set up a back up route,
like below

ip route 1.1.1.1 255.255.255.255 192.168.1.1 track 1


ip sla 1
icmp-echo 1.1.1.1 source-ip 10.1.2.1
timeout 1000
frequency 30
ip sla schedule 1 life forever start-time now

so if the host stops responding it will use that new route.

im not an expert but i've done this a few time an it works