Looks fine to me.
jak
----- Original Message -----
From: <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Tuesday, July 20, 2004 12:54 AM
Subject: [psg.com #256] Eliminate random delay in RS transmission
Issue:
-------
This issue was raised in order to speed movement detection
for mobile nodes. The random delay added before sending
router solicitation slows down movement detection significantly.
In Seoul, we agreed to allow the removal of this delay after
handovers.
Suggestion:
-----------
The current version of 2461bis contains the following text
in 6.3.7
Before a host sends an initial solicitation, it SHOULD delay the
transmission for a random amount of time between 0 and
MAX_RTR_SOLICITATION_DELAY. This serves to alleviate congestion when
many hosts start up on a link at the same time, such as might happen
after recovery from a power failure. If a host has already performed
a random delay since the interface became (re)enabled (e.g., as part
of Duplicate Address Detection [ADDRCONF]) there is no need to delay
again before sending the first Router Solicitation message. In some
cases, the random delay MAY be omitted if necessary. For instance, a
mobile node, using [MIPv6], moving to a new link would need to
discover such movement as soon as possible to minimize the amount of
packet losses resulting from the change in its topological movement.
Router Solicitations provide a useful tool for movement detection in
Mobile IPv6 as they allow mobile nodes to determine movement to new
links. Hence, if a mobile node received link layer information
indicating that movement might have taken place, it MAY send a Router
Solicitation immediately, without random delays. The strength of such
indications should be assessed by the mobile nodeÃs implementation
and is outside the scope of this specification.
(I'll remove the non ASCII character in the next rev).
Hesham
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