One of my router configured with 4 loopback addresses and advertised in OSPF.My question is as per my knowledge, if you have more than one loopback addresses configured on router then it select as router ID based on highest ip address. then what does it make sense to configure so many LB addresses instead of one as well to advertise them into OSPF.
Perhaps another scenario where you might want multiple loopback interfaces configured and advertised into OSPF might be that you are configuring a pool of addresses to use with Remote Access VPN or Remote Access Services/Dial Access. You want the subnet of the address pool advertised into your network so that devices in your network have routes to this pool of addresses. An easy way to do this is to configure another loopback interface on the router (in addition to the loopback used as the RID for OSPF) and to give the extra loopback an address in the subnet of the pool, and to have a network statement in OSPF matching the extra loopback.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...