From all the replies I have received, I don't think anything open
Well, True. But the idea is to have a full mesh of 'n' sensors each doing 'tests' to the remaining n-1 sensors. Finding asymmetric routes should be trivial as I plan to feed it my router configs from rancid, for detecting interfaces that belong to the same router. ( Of course, this can't be extended to the Internet in genral. ) source fits the bill. Going to the mines to write my own. Good bye cruel world... On 3/29/06, Valdis.Kletnieks@vt.edu <Valdis.Kletnieks@vt.edu> wrote:
On Tue, 28 Mar 2006 16:07:27 PST, Ashe Canvar said:
2. actively detect routing changes / failover to redundant paths using traceroutes i.e. alert if SFO->CHG->NYC changes to SFO->LXE->HOU->NYC ( link state protocols suck as far as testing backup paths go)
Two words: "Asymmetric routes". Just be aware of the implications.