Nov 18 2008
When an MPLS VPN customer is dual homed, SOO can be used to prevent routing loops as well as sub optimal routing.
Toplology as below.
Using Site of Origin community with BGP
I’ve used EIGRP between CE1 and CE3 to demonstrate the sub optimal routing.(its only suboptimal if you want to route traffic between sites using the backdoor link, which isnt always the case)
Nov 17 2008
Topology is as below.
MPLS VPN using EBGP as the PE-CE routing protocol
Nov 17 2008
Here is a short video showing how to configure an MPLS core infrastructure. The video covers basic serial and ethernet configurations, IP addressing, ISIS, MPLS and BGP VPNv4 configurations. The network topology can be seen in the diagram below.
MPLS Core Infrastructure
Nov 14 2008
*here are several techniques for creating unique system IDs:
1. Start numbering 1, 2, 3, 4, and so on.
2. Use Media Access Control (MAC) addresses.
3. Convert and use the loopback IP address as below.
*taken from Cisco web site
