i'm running ip sla for isp failover/failback on an isr 1900 with below configuration:
track 1 ip sla 1 reachability delay down 180 ip sla 1 icmp-echo 22.214.171.124 source-interface FastEthernet0/0 timeout 500 threshold 250 frequency 1 ip sla schedule 1 life forever start-time now
When i do a cable pull test(pulling cable from isp1 interface and put back)failover/failback works fine. Sometimes, during actual outages, it fails over fine but does not failback. Does running icmp-echo instead of another method effect this? Is it better to make the icmp target the isp modem instead of a dns server on the internet?
I know the basics for Cisco routers and switches but what I want to know is, if I set up VTP on a switch, is there a way to send it through routers to other switches? This will probably end up more hassle than gain, but it's interesting and cool to p...