BGP Prefix Limit Configuration in Cisco, Juniper and Nokia - Interop

BGP Prefix Limit

Maximum Prefix-limit is used to control the BGP peer not to overload your BGP routing table and it helps to avoid the situation. let's explore how to configure in Cisco, Juniper, and Nokia router

Cisco Configuration

 !

router bgp 300

 neighbor 192.168.1.1

  address-family ipv4 unicast

   maximum-prefix <max-limit> <percentage> <Actions>

  !

 !

Juniper  Configuration

edit protocol
bgp {
        group nokia {
            neighbor 192.168.0.1 {
                family inet {
                    unicast {
                        prefix-limit {
                            maximum 1000;
                            teardown;
                        }
                    }

Nokia Configuration

/configure router bgp

            group "juniper"

                type external

                local-as 100

                neighbor 192.168.0.2

                    prefix-limit <family> <prefix-limit>

                    peer-as 200

                exit