Using Multiple Routing ProtocolsUsing Multiple Routing Protocols
There are several reasons you may need to run multiple routing protocols in
your network. Some include:
■ Migrating from one routing protocol to another, where both protocols
will run in the network temporarily
■ Applications that run under certain routing protocols but not others
■ Areas of the network under different administrative control (“layer 8”
issues)
■ A multi-vendor environment in which some parts of the network
require a standards-based protocol