carrier with core boxes without vendor support and warranty? this is interesting =)
the manufacturer (Marconi) that built those ATM boxes has long been out of business. the SP hold on to those boxes for as long as they can, but eventually realized that a single nasty solar flare can take down the whole network.
but yes, going back to the point, mpls over atm core is very much possible.
need to check though if the boxes to be used. will we replace the whole core or will we keep the legacy stuff etc.
the new network will be built side-by-side with the old network. the only part of the old network that will be present on the new network when all is said and done are the fibers/radios. Users will be migrated slowly and until everything is moved, the old network will be kept running. the end users made it clear that they can't and won't tolerate just even a single day of downtime
bottomline, this goes down to the capability of our boxes and the skill and knowledge of the design & implementation guys
the boxes are carrier grade, top-of-the-line routers. I've tested the majority of the requirements so i'm fairly confident these routers can deliver. the physical layout is nailed down too, after all, we are using existing fibers.
my biggest worries are the OAM guys. they are well versed with ATM but IP/MPLS is a whole new level for them. i'm building this network to support all the requirements but that also means it is going to be a little complicated than a regular flat IP network
Grabe lalalim nyo na mga master alam ko CCNA thread lang po to hindi CCNP, CCIE. =D
do you really just want to limit your horizon to CCNA?