nanog mailing list archives

Re: Alternatives to storm-control on Cat 6509.


From: Mikael Abrahamsson <swmike () swm pp se>
Date: Sun, 23 Aug 2009 08:30:30 +0200 (CEST)

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


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