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Pinging routers for network status
On Sun, 17 December 2000, John Fraizer wrote: > On Sat, 16 Dec 2000 [email protected] wrote: > > We at SAVVIS run continous pings to every backbone router that we > > own. (John - this does not include our ATM switches, we have no way to > > monitor latency between them). But if, say, our connection to Sprint or > > Um, sure you do. You know your atm mesh and (hopefully) you have an IP > address bound up on the switch itself so you can gather snmp statistics > from the box. Most network providers ping their routers for network status. Several providers even track RTT to detect changes. But very few customers connect to routers. Comparing the performance you see with HP Openview or similar products with the performance customers see remains an interesting question. Sometimes C&W's or AT&T's traffic web site does show a problem. But there are also problems that don't show up in intra-network pings. In particular IGP/BGP routing issues can result in severe access network problems, but no problem with the internal provider network mesh used for pings.