Hi Forum

I have a setup I would like to run past you all to discuss the best way to configure this solution.
All routers are CCR-1016 devices.

Layer 2 Connectivity
A-R1 to A-R2 is a 10Gbps connection via redundant switches.
B-R1 to B-R2 is a 10Gbps connection via redundant switches.
A-R1 to B-R1 1Gbps national QinQ circuit
A-R2 to B-R2 1Gbps national QinQ circuit

ASN200
Each router has a 1Gbps circuit into ASN200

ASN300
Has been assigned a /22 to advertise to the world.
I would like to break into two /23 IP Ranges.
Advertise 2 X /24 and 1 x /23 from each location A & B

Config completed so far:

BGP established from A-R1,R2 to ASN 200
BGP established from B-R1,R2 to ASN 200
BGP is being advertised correctly to the world /24 and /23 working
BGP has AS Prepend on R2 devices to allow R1 to be preferred.

To do:
I need to connect all the routers together to share the BGP routes I am learning from ASN200 and make best path decisions.
When setting up BGP (iBGP) between any R1 to R2 router I was seeing routes flapping in and out of the tables + the CPU on both routers going to 100% (not sure why)
I have not yet connected A routers to B routers via national transit links.

Any help would be appreciated for route redistribution as wel as the flapping issues.

Tx

Not quite sure what your question is...

But having said that, you will also need to create an ibgp session between all of your routers (mesh) unless you are doing a RR (route reflector) config.

Hi

Thanks for the reply - I have tested a few scenarios.

When I bring BGP up A-R1 to B-R1 the BGP comes up but no routes are passed between them.
There are no filters applied at all.


Any ideas ?

--M--

Hi there

To update my last point:

Only a few routes are being passed between them - I am expecting around 40K from A to B and 5K from B to A

Any thoughts ?

--M--