[137896] in North American Network Operators' Group
Re: BGP Failover Question
daemon@ATHENA.MIT.EDU (Owen DeLong)
Tue Feb 22 13:44:30 2011
From: Owen DeLong <owen@delong.com>
In-Reply-To: <AANLkTikicoV_pP508X6ck_zafV6sCc1iGcHcLjqABQ1Q@mail.gmail.com>
Date: Tue, 22 Feb 2011 10:38:55 -0800
To: Hammer <bhmccie@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Assuming that he has provider independent space (why run full BGP feeds =
if you
are not multihomed?), then, actually it's about on par and less =
disruptive in
general. Add new provider, wait a day or two, then disconnect old =
provider.
If he's using provider assigned space, then, the big hurdle is switching =
to provider
independent (requires a renumber), but, that's a good idea for a variety =
of reasons.
I would hardly call the type and frequency of outages described a "whim" =
when
using that as a reason to change providers. Sounds like he is suffering
severe impact to his business.
Owen
On Feb 22, 2011, at 10:15 AM, Hammer wrote:
> I'm not argueing that at all. But it wasn't relevent to the question =
at
> hand. And depending on the scale of your business dumping providers is =
not
> something done on a whim. It's not like your fed up with DSL and want =
to
> convert to Cable.
>=20
>=20
> -Hammer-
>=20
> "I was a normal American nerd."
> -Jack Herer
>=20
>=20
>=20
>=20
>=20
> On Tue, Feb 22, 2011 at 12:11 PM, Bret Clark =
<bclark@spectraaccess.com>wrote:
>=20
>> On 02/22/2011 12:23 PM, Hammer wrote:
>>=20
>>> As Max stated, you can set triggers based on thresholds that are =
monitered
>>> via multiple methods in Cisco IOS. That way you could force the =
route down
>>> dynamically. There's always a risk when letting the machines do the
>>> thinking
>>> but this would help in situations like this. Can't speak for other =
vendors
>>> but I'm sure the features are similar.
>>>=20
>>> Well as someone else stated, if an upstream provider can't provide =
BGP
>> reliably then it's time to give them the boot. Once in a year, okay, =
but
>> beyond that, then it's time to read riot act with that provider.
>> Bret
>>=20
>>=20
