North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Open Source BGP Route Optimization?
Andrew - Supernews <[email protected]> wrote: >>>>>> "Per" == Per Gregers Bilse <[email protected]> writes: > > Per> But that wasn't really the point. If I telnet to all border > Per> routers and do 'sh ip b' I can get all tables too; likewise if I > Per> have a starting point and do a lot of LS traceroutes; and maybe > Per> even via SNMP (haven't checked what various MIBs support). > > You can get the received routes via SNMP. I've done this manually on > occasion for the purposes of doing "what-if" analysis of potential > traffic plans - take a dump of all available external routes via SNMP, > apply to that the proposed policy with regard to selecting the best > route, then correlate the resulting route choices with known traffic > statistics to determine the resulting utilisation levels of each > external link. This has proven useful in a number of situations where > radical changes to external routing were being made, to avoid > unexpectedly overloading particular links. I would had liked to had been able to have done such things in the past. I was thinking about having a go at writing something, but it's not like I have enough time as it is, and our network isn't really big enough to warrant it. Though I am interested in what tools already exist to support this (more out of curiousity than need). A quick google search threw up a couple of research papers and IP/MPLSView (www.wandl.com), but I presume others on this list will know of more? Sam
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