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BGP propagation time

Thu Jul 12, 2018 5:52 pm

I have 2 CCR:
1036em - BGP Edge
1008 - BRAS
They are connected via eBGP. When I connect client to BRAS via PPPoE - new route on 1036 is visible after ~70 sec. What can i do with it?
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Re: BGP propagation time

Thu Jul 12, 2018 8:39 pm

Full tables? That's all you can do, unfortunately. The BGP implementation isn't amazing (constant scanning of tables), single-core, and the CCR's individual cores are not amazing for computation.

Alternatively look at this excellent EU MUM talk for how to use CHR on 64-bit Intel for higher convergence speeds: ... 562405.pdf
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Re: BGP propagation time

Thu Jul 12, 2018 9:10 pm

Maybe make a separate BGP instance for internal routing?
I use BGP only there and for me it is fast. But I don't have internet tables.
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Re: BGP propagation time

Thu Jul 12, 2018 11:23 pm

Excuse my ignorance, dont have any experience with pppoe bras, but if you have just two devices, why you dont just make static aggregated route to your bras?

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