Subject: [L2tpext] draft-ietf-l2tpext-failover-01 query

From: "Chris Hellberg" <[email-masked]>
Date: Sun, 27 Jul 2003 03:17:13 +1200

Hi,

Does anyone have any code or reports of trials with the mechanism? I've been having a few thoughts on the passing of state between a LAC and two LNSs. With the failover mechanism, there's a concept of hinting to the "backup" LNS on the session ID it would prefer to use. 

Would I be correct in thinking that the passing of upper-layer state information (such as IP address for an IPv4-encapsulated tunnel, DNS, WINS, etc) would need to be handled by upper-layer protocols such as PPP? 

Would this also mean that most PPP implementations would need to cope with suddenly having to start LCP again in the middle of a session, or does this capability happen with most stacks today anyway?

Cheers,

Chris

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