Hey Guys,
So I am trying to setup a lab and trying to work out the best topology for OSPF.
Setup:
- 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.
Thanks
David
