[116861] in North American Network Operators' Group
Re: Alternatives to storm-control on Cat 6509.
daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Sun Aug 23 02:31:21 2009
Date: Sun, 23 Aug 2009 08:30:30 +0200 (CEST)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: NANOG list <nanog@nanog.org>
In-Reply-To: <200908222143090.32BF5B92.16410@clifden.donelan.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Sat, 22 Aug 2009, Sean Donelan wrote:
> But in a service provider network (or any managed network), is there any
> reason why a customer needs to hear other customer's broadcasts? In
> practice, are there any useful broadcast messages in a multi-customer
> environment that can't/shouldn't be proxied by the network operator or
> handled other ways.
Not that I know of, ISPs have successfully done L2 isolation of customers
for 10 years and I haven't heard of any problems with it.
Only bad part really is that if the customer is allowed several IPs and
you use local-proxy-arp then traffic between customer computers will go
via the ISP, which is one of the reasons I advocate the use of a home CPE
router for IPv6, it's just a cleaner handoff.
--
Mikael Abrahamsson email: swmike@swm.pp.se
