COPS key management question

[vinay <mietf@yahoo.com>]

Hi
Section 4.2 ( Key Maintenance) in RFC 2748 mentions :
It is good practice to regularly change keys. Keys
MUST be configurable such
that their lifetimes overlap allowing smooth
transitions between keys. At
the midpoint of the lifetime overlap between two keys,
senders should
transition from using the current key to the
next/longer-lived key.
Meanwhile, receivers simply accept any identified key
received within its
configured lifetime and reject those that are not. 
Does this mean that everytime a key is changed, the
open session should be closed
and the security and sequence number negotiation be
done again ( i.e. by
reconnecting and sending an OPN message with the new
key id in the integrity
object after closing the previous session ..) ?
Thanks,
Vinay



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