|
North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: AGIS v BBN
> AGIS upgraded its router at the Sprint NAP to an RSP (from SP/SSP), and at > the same time had to upgrade the FDDI interface. It hasn't really worked > right since. It turns out through experimentation, any return traffic > coming through Pennsauken dies on that router. So we've essentially taken > the Sprint NAP router off the net while we figure out what's wrong. [That, > by the way, is why it's so important to see as many networks in as many > places as possible.] > > We've spent the time since try to determine if we have: > > - a FDDI problem When switching cards/upgrading things, you could try setting the old mac address in software for the new fddi interface, if the fddi card itself is new (has a different mac address). This is a common problem with hot-swapping ethernets - switches and other routers sometimes don't expire arp properly. > - an RSP problem > - an undesirable SMDS/IOS interaction (we use SMDS to get into Pennsauken > from our net) 11.0.9 works weel for us on 7505s. > - some other undesireable hardware/IOS interaction > - routing or other configuration on the Pennsauken router > - routing or other configuration on any other router > > I'll let you know what we find out. We've pretty much eliminated routing > or FDDI, and are looking at SMDS/IOS or some other config issue. > > Peter These things are a bitch... Good luck, Avi - - - - - - - - - - - - - - - - -
|