[j-nsp] juniper-nsp Digest, Vol 159, Issue 8

[William McLendon]

I don’t know whether it is officially supported or not, but I was able to get v6 working in a lab environment with MC-LAG, even with OSPF3 running and working over it as well.

In v4 world you must configure VRRP to have the ARP sync work properly (this bit us on a MC-LAG running OSPF where one would not expect to actually need VRRP running), I suspect you may have to also configure VRRPv6 to have ND entries sync properly.

below is snippet of IRB config of what worked in our lab — again, this was not a production environment:


    irb {
        arp-l2-validate;
        unit 1001 {
            family inet {
                mtu 1500;
                address 192.168.1.3/24 {
                    arp 192.168.1.2 l2-interface ae0.0 mac 64:64:9b:4a:a5:00;
                    vrrp-group 1 {
                        virtual-address 192.168.1.1;
                        priority 100;
                        accept-data;
                    }
                }
            }
            family inet6 {
                mtu 1500;
                address 2001:db8:0:1::3/64 {
                    ndp 2001:db8:0:1::2 l2-interface ae0.0 mac 64:64:9b:4a:a5:00;
                    vrrp-inet6-group 101 {
                        virtual-inet6-address 2001:db8:0:1::1;
                        priority 100;
                        accept-data;
                    }
                }
                address fe80::120e:7e03:e9b1:ab80/64 {
                    ndp fe80::6664:9b03:e94a:a500 l2-interface ae0.0 mac 64:64:9b:4a:a5:00;
                }
            }
        }


Thanks,


Will