Yes, I have implied "normal Internet traffic"... ;)
In reduced cases there is possible to get more throughput definitely.
-----------------------------------------------------
Basil (Vasily) V. Dolmatov CCIE# 5347
LightCom Corp. http://www.lightcom.ru
> -----Original Message-----
> From: Siva Valliappan [mailto:svalliap@cisco.com]
> Sent: Thursday, December 14, 2000 10:38 PM
> To: Basil Dolmatov
> Cc: routerman@briefcase.com; cisco-nsp@puck.nether.net
> Subject: Re: [nsp] Deferred Packets
>
>
> depends i think. on my home lan, if i do a FTP to FTP, between my laptop
> to desktop, i can occasionally get as high as 8 mbps, since there is
> no other hosts on the wire, and the traffic is all large packets in
> 1 direction, and small acks every so often in the other direction.
> with a large number of hosts, all of them chatting intermittently, then
> you are going to decay and see a max performance of about 2 to 3 megs
> per second [max], but with just 2 hosts, the performance is quite a bit
> better. i think there's a pretty nice formula discussing this in
> Andrew Tanenbaum's book... or was it Radia Perlmann's? i forget.
>
> cheers
> .siva
>
> >
> >
> > Yes. Normal.
> >
> > Mister Routerman, you will never get more than 2Mb other 10Mb
> _half-duplex_
> > connection, and
> > 1Mb traffic is quite the position, when collision effects are become
> > visible.
> > Yes, deferred packets _will_be_ up to several percents at 1Mb/sec load.
> >
> > -----------------------------------------------------
> > Basil (Vasily) V. Dolmatov CCIE# 5347
> > LightCom Corp. http://www.lightcom.ru
> >
> > > -----Original Message-----
> > > From: routerman@visto.com [mailto:routerman@visto.com]On Behalf
> > > Of A Routerman
> > > Sent: Thursday, December 14, 2000 8:26 PM
> > > To: dol@office.east.ru; cisco-nsp@puck.nether.net
> > > Subject: RE: [nsp] Deferred Packets
> > >
> > >
> > > Normal? Even at low traffic rates of less than 1MB on a 10MB
> > > circuit? I would expect collisions certainly but don't
> > > understand why packets would be deferred (i.e how is the circuit
> > > that busy that packets have to be deferred given our traffic
> > > load). Over the course of 1 week we have over 70,000 deferred
> > > packets - seems high in relation to traffic (over 1% of total
> traffic).
> > >
> > > Thoughts?
> > >
> > >
> > > -----Original Message-----
> > > From: Basil Dolmatov dol@office.east.ru
> > > Sent: Thu, 14 Dec 2000 20:25:37 +0300
> > > To: routerman@briefcase.com, cisco-nsp@puck.nether.net
> > > Subject: RE: [nsp] Deferred Packets
> > >
> > >
> > >
> > > "Deferred" packets are absolutely normal at _any_ half-duplex links.
> > >
> > >
> > > -----------------------------------------------------
> > > Basil (Vasily) V. Dolmatov CCIE# 5347
> > > LightCom Corp. http://www.lightcom.ru
> > >
> > > > -----Original Message-----
> > > > From: routerman@visto.com [mailto:routerman@visto.com]On Behalf
> > > > Of A Routerman
> > > > Sent: Thursday, December 14, 2000 7:42 PM
> > > > To: cisco-nsp@puck.nether.net
> > > > Subject: [nsp] Deferred Packets
> > > >
> > > >
> > > > I have an issue that is causing too much hair loss :)
> > > >
> > > > We have a two 3640's connected to two Foundry switch/routers.
> > > > Then behind our 3640's we have two 2924xl switches that have a
> > > > connection to each 3640 (and the siwtches are trnked). We run
> > > > HSRP between the routers on the back end.
> > > >
> > > > The issue we see is on the front end between the 3640's and the
> > > > Foundry's. It is a 10 half duplex connection and we are seeing
> > > > about 1% of total traffic as deferred packets on the Cisco's. No
> > > > errors on the Foundry's. The link is only utilized at about 8%
> > > > (less than 1MB).
> > > >
> > > > Trying to determine why we are getting deferred packets and what
> > > > could be causing them. Some say it is "normal" to have deferred
> > > > packets on a 10 half (as well as collisions of course). Others
> > > > say it is a problem in that the Cisco is trying to send packets
> > > > and senses the network is busy so defers the packets.....
> > > >
> > > > Anyone else seen this? Normal? Causes of deferred packets are?
> > > >
> > > > Thanks in advance
> > > > __________________________________________________________________
> > > > _________
> > > > Visit http://www.visto.com/info, your free web-based
> > > > communications center.
> > > > Visto.com. Life on the Dot.
> > > >
> > >
> > >
> > >
> > > __________________________________________________________________
> > > _________
> > > Visit http://www.visto.com/info, your free web-based
> > > communications center.
> > > Visto.com. Life on the Dot.
> > >
> >
>
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