From: Richard Dumoulin (richard.dumoulin@vanco.es)
Date: Thu Jul 29 2004 - 19:37:32 GMT-3
I would say when you set load interval to 30 seconds, the router calculates
the bandwidth consumed in intervals of 30 seconds. This is it takes the
amount of bits that have been going through the interface during 30 seconds
and then compare to the dialer load threshold which is a percentage of the
available bandwidth,
--Richard
-----Original Message-----
From: ccie2be [mailto:ccie2be@nyc.rr.com]
Sent: viernes, 30 de julio de 2004 0:30
To: Wang Dehong-DWANG1; Kenneth Wygand; Daniel Sheedy; Brian McGahan
Cc: ccielab@groupstudy.com
Subject: Re: Dialer load threshhold & load-interval interaction
Does anybody know if the load-interval command affects the load calculation
used by the dialer load-threshold command?
The smallest value possible with the load-interval command is 30 seconds.
Does that mean that after dialer load-threshold has brought up the second
bri circuit, it will take at least 30 of the load being less than the
threshold before load-threshold will take down the 2nd bri?
Also, it seems that dialer load-threshold kick-ins very quickly after the
load exceeds the load threshold value. How does the router determine, by
default, for how long the load must exceed load-threshold before kicking in?
In other words, suppose the load exceeds the load threshold for only 3
seconds, will the 2nd circuit be brought up?
How 'bout 5 seconds? etc?
Thanks in advance
----- Original Message -----
From: "Wang Dehong-DWANG1" <Dehong.Wang@motorola.com>
To: "'ccie2be'" <ccie2be@nyc.rr.com>; "Kenneth Wygand"
<KWygand@customonline.com>; "Daniel Sheedy" <dansheedy@gmx.net>; "Wang
Dehong-DWANG1" <Dehong.Wang@motorola.com>; "Brian McGahan"
<bmcgahan@internetworkexpert.com>
Cc: <ccielab@groupstudy.com>
Sent: Thursday, July 29, 2004 5:59 PM
Subject: RE: Dialer load threshhold vs. ppp multilink
>
> I felt the same way after I looked at doc CD..
>
> Usage Guidelines
> When the cumulative load of all UP links (a number n) exceeds the load
threshold the dialer adds an extra link and when the cumulative load of all
UP links minus one (n - 1) is at or below load threshold then the dialer can
bring down that one link. The dialer will make additional calls or drop
links as necessary but will never interrupt an existing call to another
destination
>
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fdia
l_r/drfd.htm#wp1123269
>
> -----Original Message-----
> From: ccie2be [mailto:ccie2be@nyc.rr.com]
> Sent: Thursday, July 29, 2004 4:49 PM
> To: Kenneth Wygand; Daniel Sheedy; Wang Dehong-DWANG1; Brian McGahan
> Cc: ccielab@groupstudy.com
> Subject: Re: Dialer load threshhold vs. ppp multilink
>
>
> Dan,
>
> I believe you're mistaken. Dialer load-threshold will also drop a
> channel if the load remains below the load-threshold long enough.
> Remember, the period during which the load is evaluated is determined
> by the dialer interval-period which, by default, uses 300 seconds (5
> minutes).
>
> Does anybody disagree?
>
> But, on the other hand, it doesn't take 5 minutes for utilization to
exceed
> the load-threshold for the 2nd channel to be added. Go figure.
>
>
>
> ----- Original Message -----
> From: "Daniel Sheedy" <dansheedy@gmx.net>
> To: "Wang Dehong-DWANG1" <Dehong.Wang@motorola.com>
> Cc: <ccielab@groupstudy.com>
> Sent: Thursday, July 29, 2004 4:08 PM
> Subject: Re: Dialer load threshhold vs. ppp multilink
>
>
> > Hi Dehong,
> >
> > I was looking through the commands and found this one about number
> > 3.
> >
> > Use the ppp multilink load-threshold command for dynamic bandwidth
> > (dial-on-demand) systems in which MLP will need to dial additional
> > links
> as
> > needed to increase the bandwidth of a connection. When the load on
> > the bundle interface exceeds the set value, links are added. When
> > the load
on
> > the bundle interface drops below the set value, links are dropped.
> >
> >
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/dial
_r/dia_n1g.htm#wp1135540
> >
> > So, if the questions asks that the link should add the link at a
> > certain load, and then remove it when it drops down below this
> > level, then the multilink load-threshold is the way to go. Whereas
> > the dialer load will just add it, and then timeout when it is bored
> > (has nothing
interesting).
> >
> > Dan Sheedy
> >
> >
> > _______________________
> > Subject: RE: Dialer load threshhold vs. ppp multilink
> >
> >
> > > good to know the more details. I thought that load threshold and
> multilink
> > are bond together too :) Now my question is what should be used if
> > you
are
> > just asked to bring the second link up if the traffic on first
> > channel exceed some point, say 70%.
> > >
> > > 1. load threshold only
> > > 2. load threshold with ppp multilink
> > > 3. ppp multlink load threshold
> > >
> > > thanks.
> > >
> > > - Dehong
> >
> > ____________________________________________________________________
> > ___
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> >
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