Hi Mitchell,
I don't think everyone knows which problem or draft you are referring
too (at least I didn't).
Thanks,
Acee
On Jul 29, 2009, at 1:43 PM, Mitchell Erblich wrote:
Group,
I had a discussion whether this older problem and solution is
still
a valid problem in today's routers.
My assumption is that since the time that thus draft was written
that a core interface media has moved from 100Mb to 10Gb. Due
to this and more efficient processors, this is no longer an
issue.
Secondary items that lessen this are:
* when a number of IP datagrams are recieved, the
systems
move to a polling mode to effectively decrease the
number of
interrupt per packets,
* grouping a larger number of LSAs together should
minimize
the internal fragmentation and minimize the total
number
of packets and reduce the byte count recieved by the
size
of headers,
* and IP now has ECN support in addition to OSPFs acks
Thus, if a byte count of the LSAs (non DNA LSAs) to be
refreshed is
tracked, the new and Refreshed LSAs, then the LSAs need minimal
dispersion, to keep the active bit rate that will prevent rexmits
and
keep the cpu load below 5%.
IMO, if the number of LSAs to be refreshed from one router is
excessive, todays routers can process / spread out all of the
LSAs within
within a few secs without consuming even 5% of the interface's
bandwidth..
Mitchell Erblich
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