All things related to multicast

["S.Grant" <>]

Do you still need someone to play with this tool for testing purposes?  

-Shirl
----- Original Message ----- 
From: "Chris Rapier" 
<>
To: 
<>
Sent: Thursday, January 20, 2000 3:04 PM
Subject: An MSDP Dump Tool


> Recently I was forwarded a request about an MSDP dumping tool. I believe
> they were looking for something that would sit on (actually jump on and
> off) a port and request SA_TLV packets. 
> 
> So I wrote one as an exercise. Its a pretty basic perl program but it
> seems to do  what was requested with some level of ability. I'm aware
> that this might not be the most efficient tool and it, in fact, might
> have some significant problems. I want to actively encourage your
> critiques, comments, and suggestions. As I'm not on this list yet be
> sure to CC me in any replies.
> 
> You can find the tool at:
> 
> http://www.ncne.nlanr.net/tools/multicast.html
> Its near the bottom of the page. 
> I've been calling it msdpdump.
> The code itself contains most of the documentation and I hope the
> comments will explain some of the choices I made during the writing of
> this.
> 
> I also created an online version that I should have on the production
> web server inside of 10 minutes. You'll be able to access that at
> http://www.ncne.nlanr.net/cgi-bin/webmsdpdump 
> 
> If you try out the online version please be aware that it only peers
> with two router (namely ours) and the routine to back off from a busy
> port and then continue is somewhat unproven (but getting more practice
> as time goes on). We're also seeing a problem that might be caused by
> the peer going through a firewall. Hopefully we'll resolve that soon but
> for now it just slows down tool a little bit (1 second wait time between
> connection attempts after a failure).
> 
> However, what you can do with the online version is compare a router
> that peers only with the vBNS (beast.psc.net) and a router that only
> peers with Abilene(killifish.psc.net). That might prove interesting to
> some.
> 
> Again, please send me any comments or suggestions. I'm looking for your
> input to improve the utility of this tool.
> 
> Chris Rapier
> Network Programmer Flunky Type
> NCNE NLANR ES
>