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Re: [OSPF] Immediate Replying Hello

"Acee Lindem (acee)" <acee@cisco.com> Wed, 31 January 2018 12:47 UTC

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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "rui.valadas@tecnico.ulisboa.pt" <rui.valadas@tecnico.ulisboa.pt>, "ospf@ietf.org" <ospf@ietf.org>
Thread-Topic: [OSPF] Immediate Replying Hello
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Date: Wed, 31 Jan 2018 12:47:28 +0000
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Subject: Re: [OSPF] Immediate Replying Hello
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Hi Rui,

It is not a standard. However, it is a technique used by many implementations to speed adjacency formation when a hello packet is received and the neighbor state is less than two-way. At least one of the implementations with witch with I have been associated would unicast the hello.

Hope this helps,
Acee

From: OSPF <ospf-bounces@ietf.org> on behalf of "rui.valadas@tecnico.ulisboa.pt" <rui.valadas@tecnico.ulisboa.pt>
Date: Wednesday, January 31, 2018 at 3:28 AM
To: OSPF WG List <ospf@ietf.org>
Subject: [OSPF] Immediate Replying Hello

Hi,

Many OSPF implementations include the Immediate Replying Hello feature, which I believe is not standard.

The only reference I found is the draft “Update to OSPF Hello procedure, draft-kou-ospf-immediately-replying-hello-02.txt” which has expired.

Are vendors following what is written in this draft? Is there a document from any vendor that details this feature?

Thanks.

Rui Valadas

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