> A little word of advice for those that use BGP: Don't use 15.1(1)SY and > 15.1(1)SY1. > They have a nasty little BGP bug that can create black holes or loops > for random prefixes due to stale RIB entries of withdrawals that are not > processed correctly (CSCuh43027). > Some withdrawn prefixes are being removed from the BGP table, but not from > the RIB! > It's very hard to debug and even notice as it usually only affects a > couple thousand prefixes, but it's > annoying. > A lot of 15.1, 15.2. and 15.3 trains have the same issues, so be careful > also on the 7600 "S" train. > It is fixed in 15.1(2)SY and 15.2(4)S4 only. > So if you want to use 15.1 on Sup720/Sup2T, use 15.1(2)SY.
A couple THOUSAND? Sheesh that's half of my IGP, I think I'd notice that! (in a few hours) I don't have access to view the bug details, does this impact VPNv4 prefixes? Thanks Ross _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
