[quagga-users 11291] Re: Stupid BGP question / problem

sthaug at nethelp.no sthaug at nethelp.no
Mon Jan 4 21:27:41 GMT 2010


> Cisco ---> Dell-01 <----- Another Provider #1
>               |
>               |
>            Dell-02 <----- Another Provider #2
> 
> Cisco, Dell-01 and Dell-02 are all in the same ASN
> 
> Provider 1 and 2 are different providers
> 
> 
> I can bring BGP up from Cisco to Dell-01 (iBGP)
> I can bring BGP up from Dell-01 to Dell-02 (iBGP)
> 
> The providers all come up as well (eBGP)
> 
> The issue is that routes announced by Cisco to Dell-01 DO NOT propagate
> to Dell-02

This is expected when these are all in the same AS (i.e. running IBGP).
You need a full IBGP mesh.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no


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