I have seen it happen in lab environments. For the most part, it isn't pretty. It's the worst with OSPF as it isn't possible to get to 100k+ prefixes in ISIS (cap is 32k I believe due to LSP sizes & max fragments) In my lab, I had to reboot all my cisco devices (4700's, 7513's, 2600's & access servers) Some simply locked or rebooted themselves, others became inoperable. Further, one needs to purge the LSA's from the LSDB, otherwise, they will continue to try and flood which makes the problem hard to fix when your originating router doesn't accept commands from the cli :)
At 10:50 PM 4/5/2002 -0500, MADMAN wrote: >You hit the nail on the head and this is why I think synchronization is a >legacy >default attribute. If you redistributed the Internet routing table into an >IGP I think >you would not like the results. I have not tried this, has anyone???? > > Dave > >"[EMAIL PROTECTED]" wrote: > > > I'm no BGP guru, but I would have thought also that redistributing *full > > routes* (as opposed to a default) into your IGP might overload internal > > routers rather badly. The original poster referred to 2600s and 3600s > > inside the AS. > > > > JMcL > > ----- Forwarded by Jenny Mcleod/NSO/CSDA on 05/04/2002 09:36 am ----- > > > > "Lomker, Michael" > > Sent by: [EMAIL PROTECTED] > > 05/04/2002 08:38 am > > Please respond to "Lomker, Michael" > > > > > > To: [EMAIL PROTECTED] > > cc: > > Subject: RE: BGP question [7:40525] > > > > > Why is redistribution into an IGP a big no - no? My > > > understanding is that this is what people usually do. > > > > You'd have to be careful about advertising those routes back out to BGP > > again. There was a famous case of someone bringing down the Internet by > > creating such a loop. Needless to say, their ISP shouldn't have been > > accepting advertisements for networks that the company didn't own. >-- >David Madland >CCIE# 2016 >Sr. Network Engineer >Qwest Communications Inc. >612-664-3367 >[EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=40680&t=40525 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
