will ISP peer with 2 local WAN routers?

Adam Greene maillist at webjogger.net
Fri Aug 16 21:21:18 UTC 2013


Thanks, Justin. Yes, we considered that option, too. But then if one WAN
router goes down, the customer will only have connectivity through a single
upstream provider. We'd prefer to maintain connectivity to both even if a
router fails. Switches in front of the routers is no problem.

-----Original Message-----
From: Justin Vocke [mailto:justin.vocke at gmail.com] 
Sent: Friday, August 16, 2013 4:47 PM
To: Adam Greene
Cc: <nanog at nanog.org>
Subject: Re: will ISP peer with 2 local WAN routers?

The gotcha with that is then you need a switch in front of the routers. I'd
just setup a carrier on each router and run ibgp between.

Sent from my iPhone

On Aug 16, 2013, at 3:35 PM, "Adam Greene" <maillist at webjogger.net> wrote:

> Hi guys,
> 
> 
> 
> I have a customer who peers via eBGP with Lightpath aka Cablevision 
> (AS
> 6128) and Level3 (AS 3356) and wants to do some dual-WAN router
redundancy.
> 
> 
> 
> I have heard that carriers will sometimes agree to set up a /29 WAN 
> subnet for a customer and peer with (2) customer routers.
> 
> 
> 
> The customer is delaying on providing me with the proper circuit ID & 
> contact information to be able to call Lightpath and Level3 directly 
> and find out if they will do this, so I thought of asking this list.
> 
> 
> 
> Is anyone aware if Lightpath and Level3 will agree to something like this?

> 
> 
> 
> Thanks,
> 
> Adam
> 
> 
> 
> 
> 




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