I am most worried about software releases to fix bugs in switches, etc. It is well know the 8600 line had serious bugs in MAC table/ FDB when ran in clustered environments that had to be addresses with subsequent software releases. Also, our CSE1000 gets about 30 patches a year for discovered bugs, and even custom patches for issues we have surface in just our simple environment. Yes, I can find someone to come in a help with config changes, replacing a dead piece of hardware, etc. But how will we address an issue that needs a new software rev or patch bug fix? Our server guys would pee their pants if they have servers running an OS that MS stops supporting and thus releasing monthly security patches for. 10 years ago you would never have convinced me I would worry about a huge hardware vendor going under and me be concerned for reasons of subsequent software support on in place hardware. Not sure about you guys but I have my 8600’s buried deep in the core of a worldwide network that cannot endure ANY selective downtime. I would assume a core swap out that went perfect would need 30-60 minutes of downtime just for the physical portions of unracking/ rerack or repatching fiber and GIG copper links, etc., even if the configs in the new brand cores worked perfect. But that is hoping for an awful lot. There has not been 6 months that have gone by in our 5 years on the CSE1000 VOIp platform that we have not ran into an operational issue (usually around VOIP virtual trucks and 1 way speach path) that Nortel has not had to write a custom patch to fix something. Who can/ will write those pathces for our vendor we pay maint. to for the CSE1000?