642-691 BGP+MPLS Difference between Router Descriptor (RD) and Route Target (RT) Studying towards the SPEDGE (great word Cisco!) tonight and couldn't quite define exactly Route Descriptors and Route Targets. So lets try First off it might be important (and obvious) to note both RT
642-691 BGP+MPLS %BGP-4-VPNV4NH_MASK and OSPF advertising loopback as /32 by default Recently when doing some MPLS VPN lab work I came across the error %BGP-4-VPNV4NH_MASK: Nexthop 4.4.4.4 may not be reachable from neigbor 2.2.2.2 - not /32