nanog mailing list archives

Re: RIP Justification


From: Julien Goodwin <nanog () studio442 com au>
Date: Thu, 30 Sep 2010 14:13:11 +1000

On 30/09/10 13:42, Mark Smith wrote:
One of the large delays you see in OSPF is election of the designated
router on multi-access links such as ethernets. As ethernet is being
very commonly used for point-to-point non-edge links, you can eliminate
that delay and also the corresponding network LSA by making OSPF treat
the link as a point-to-point link e.g.

int ethernet0
  ip ospf network point-to-point


If your implementation doesn't support point-to-point mode for an
interface, point-to-multipoint mode on an ethernet would achieve
something somewhat equivalent.

Do any implementations go point-to-point automatically if an ethernet
has a /30 or /31 mask?


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