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How many route entries a 2821 router or 881 router can support

                   One of our client wants to know "How many route entries a 2821 router or 881 router can support"

Such as the 3750 can support 11k routes in ‘desktop routing’ mode. But I want to know the limitations on routers.

Thank you,

1 REPLY 1
Sergey Fer
Beginner

Many more than 3750 It depends on DRAM volume available. Catalyst has limitation in hardware-based CEF, not in routing table itself. 2821 is software-based and having 1GB DRAM it can support BGP Full View. I do not recommend you to do it in production, but router can do it. There are some hundreds of thousands routes in Full View nowaday.