An RR is a single point of failure, therefore at least a second RR may be configured in order to provide redundancy. As it is an additional peer for the other 10 routers, it approximately doubles the number of CLI statements, requiring an additional statements in this case. In a BGP multipath environment the additional RR also can benefit the network by adding local routing throughput if the RRs are acting as traditional routers instead of just a dedicated RR server role.
An RR is a single point of failure therefore at least a second RR may be configured in order to provide redundancy As it is an additional peer for the other 10 routers it approximately doubles the number of CLI statements requiring an additional statements in this case In a BGP multipath environment the additional RR also can benefit the network by adding local routing throughput if the RRs are acting as traditional routers instead of just a dedicated RR server role