[AusNOG] Downstream BGP Config

[Adam Nock]

Hi James

I'd like to add, consider your SLA handling to your client carefully.

Your treading new ground (for yourselves) so you dont want to be stuck with a short turnaround SLA and find yourselves in a situation where you just cant get things working properly.

At the same time, take into account your upstream providers SLA's for the same type of service option. Last thing you want is to breach your client contract because your upstream has their own policies that cause delays.

Regards
Adam


________________________________________
From: ausnog-bounces at lists.ausnog.net [ausnog-bounces at lists.ausnog.net] On Behalf Of Julien Goodwin [ausnog at studio442.com.au]
Sent: Tuesday, 1 May 2012 9:26 PM
To: James Mcintosh
Cc: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] Downstream BGP Config

On 01/05/12 18:50, James Mcintosh wrote:
> Hi Noggers,
>
> We use BGP upstream with our upstream carriers but now for the first
> time we have been asked by one of our larger customers to allow them to
> advertise their own IP block and AS number.
>
> We've never had a customer with this requirement before.
>
> I'm hoping some of the experienced admins on the list could comment on
> what we need to consider.
>
> Also a sample config for IOS would be super helpful as my BGP knowledge
> is pretty basic.

I'll add one thing to what Macca said.

Have a plan for *when* someone advertises the internet to you and you
accept it (eg, Telstra/Dodo just recently).

Pretty much every serious BGP managing engineer has done this at one
point, even if only by not properly filtering peers[1].

Do you know how to troubleshoot BGP down due to max prefixes? Do you
have a *printed* copy of the 24/7 NOC lines for all your transit
providers so you can come back once they've cut you off?

Thanks,
Julien

1: No I don't care if you, $READER, never have, the vast majority of
engineers have at least configured up such a scenario, even if they've
not been burnt by it (yet).
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