This object caps the maximum number of routes the VRF instance is permitted to add to the routing information base, with -1 indicating no limit has been configured. Administrators set this to guard against a misbehaving customer routing process or route leak from consuming excessive memory or CPU on the provider edge device. For example, a provider might cap a small business VRF at 5000 routes to contain the impact of an accidental full BGP table injection from the customer side.