Subject: Holdtime in Hello Message

From: "karim Zamani" <[email-masked]>
Date: Wed, 25 Oct 2000 23:26:51 -0400

Hi,

I'm getting a bit confused about the Holdtime included in the Hello messages. 

In the actual PIM-SM RFC, it says that the Hello packet includes a Holdtime set to [Hello-Holdtime]. The neighbor uses it to time out its neighbor's state.

However, in the new re-written spec  I noticed that it says that the router can use either the Holdtime sent by the neighbor or the local [Hello-Holdtime] in case the Hello packet didn't have the Holdtime. What if the local [Hello-Holdtime] is different from the neighbor's?

Is it mandatory that Hello packets carry the Holdtime?

Do PIM implementations ignore Hello packets with no Holdtime?

Thanks.
--
Karim.