R(config-router)# neighbor NEIGH-ADDR maximum-prefix MAX [TH] [restart TIMER] [warning-only]
! MAX = maximum number of routes
! TH = When the number of received routes reaches TH% of MAX, the router generates a warning. Default: 75
! restart TIMER = The session will be reestablished after the TIMER expires. If not configured, it will remain shutdown.
! warning-only = doesn't shutdown, but issues a warnign (syslog)