Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

OSPF Topology

Hey Guys,

So I am trying to setup a lab and trying to work out the best topology for OSPF.


  • 2 x Data Centers.
  • Pair of ASR routers at each DC running as a resilient pair.
  • 2 x 1GB LAN Links the between the DC's.

The idea is the physical topology woudl be like this, essentially creating a route loop:

DC1-ASR1 Int 1: - Link to DC1-ASR2

DC1-ASR1 Int 2: - Link to DC2-ASR1

DC1-ASR1 Int 3: - Link to WANA

DC1-ASR1 Int 4: - Link to LANA

DC1-ASR2 Int 1: - Link to DC1-ASR1

DC1-ASR2 Int 2: - Link to DC2-ASR2

DC1-ASR2 Int 3: - Link to WANA

DC1-ASR2 Int 4: - Link to LANA

DC2-ASR1 Int 1: - Link to DC2-ASR2

DC2-ASR1 Int 2: - Link to DC1-ASR1

DC2-ASR1 Int 3: - Link to WANB

DC2-ASR1 Int 4: - Link to LANB

DC2-ASR2 Int 1: - Link to DC2-ASR1

DC2-ASR2 Int 2: - Link to DC1-ASR2

DC2-ASR2 Int 3: - Link to WANB

DC2-ASR2 Int 4: - Link to LANB

What is the best practice for the OSPF routing topology? IE what areas do I put each link in?

The LAN and WAN subnets need to be routable between both DC's.



Everyone's tags (3)
CreatePlease login to create content