www.m00nie.com
  • Home
  • Subnet Calculator
  • Type9 Password Tool
  • Type7 Password Tool
  • Subnetting Practice
  • IP to NSAP
Sign in Subscribe

MPLS

A collection of 2 posts
Difference between Router Descriptor (RD) and Route Target (RT)
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 and RDs will only ever be configured and used on PE nodes! P and CE
Jul 9, 2013 2 min read
%BGP-4-VPNV4NH_MASK and OSPF advertising loopback as /32 by default
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 mask It occurs because by default OSPF advertises loopback interfaces with a /32 mask even if you
Oct 18, 2010 3 min read
Page 1 of 1
www.m00nie.com © 2025
  • home
Powered by Ghost