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From approximately 1300-1400 EST we experienced a cisco IOS feature which caused significant instability in our network.

Is this the "no router bgp <insert your AS>" feature?

Sounds like in inexperienced tech whining. So, where is the cheese? --- "Don't go with a spineless ISP; we have more backbone." Alex Rubenstein -- alex@nac.net -- KC2BUO -- www.nac.net net @ccess corporation, 201-983-0725 -- 201-983-0725