[mrtg] traffic not showing more than 930mbps on the link

Forthofer Russ Russ.Forthofer at ssfhs.org
Wed Jul 25 14:23:45 CEST 2007

125000000 bytes (your MaxBytes value)  * 8 (bits per byte) = 1Gigabit.
Increase your MaxBytes value.


	From: mrtg-bounces at lists.oetiker.ch
[mailto:mrtg-bounces at lists.oetiker.ch] On Behalf Of reena SINGH
	Sent: Wednesday, July 25, 2007 6:31 AM
	To: Steve Shipway; mrtg at lists.oetiker.ch
	Subject: Re: [mrtg] traffic not showing more than 930mbps on the
	Dear Sir,
	I am using SNMPv2. Configuration of the link is as follows:-
	Target[routers]: 1:public at 192.168.1.x:::::2 +
2:public at 192.168.1.x:::::2
	+ 3:public at 192.168.1.x:::::2
	MaxBytes[routers]: 125000000
	Title[routers]: Total Speed for the Routers
	But it shows the traffic only upto 1 Gb. Whereas traffic of my
link is more than 1Gb.
	So, plz help me. can you have any idea that how can i use SNMP
	Thanks & Regards
	Steve Shipway <s.shipway at auckland.ac.nz> wrote:

		It's in the FAQ.  You need to use SNMPv2 or SNMPv3
because SNMPv1 only uses 16bit counters, which roll over in the polling
window if you have 1Gb traffic.  See the MRTG manual for how to specify
SNMPv2 - you add ':::::2' to the end of the Target definition.

		From: mrtg-bounces at lists.oetiker.ch
[mailto:mrtg-bounces at lists.oetiker.ch] On Behalf Of reena SINGH
		Sent: Saturday, 21 July 2007 22:08
		To: mrtg at lists.oetiker.ch
		Subject: Re: [mrtg] traffic not showing more than
930mbps on the link
		Dear all,
		Thanks Eric, Thanks Daniel . Now its working properly
with snmp v2 . problem was in MaxBytes setting. By MaxBytes setting
125000000 i can get traffic upto 1000 megabits.
		MaxBytes[routers]: 125000000
		One thing more, we can aggregate more than 5 interfaces.
		Now can anybody suggest  me how to get more than 1000
megabits traffic on the link? Is it only depend on MaxBytes setting or i
have to do some more configuration. what will be MaxBytes setting?
		Thanks in advance
		Reena Singh
		New Delhi, India.
		On 7/18/07, Daniel J McDonald
<dan.mcdonald at austinenergy.com> wrote:
		> On Wed, 2007-07-18 at 01:16 -0700, reena SINGH wrote:
		> >  Dear all,
		> > i have configured the MRTG Server on the unix
machine for multi
		> > routers. it shows the graph of each interfaces
properly. i have
		> > aggreated some links also. it also show the traffic
properly less
		> > 930 mbps. but it not showing the traffic more than
930 mbps . it
		> > saturated on 930 mbps when trafic goes more than
		> > i have tried for both SNMP v2 & v4.
		> mrtg has no support for snmp v4, whatever that might
be.  Just 1, 2c,
		> and 3
		> >  for SNMP v2 traffic got saturated on 930 mbps,
whereas with SNMP
		v4 i
		> > can not get the aggregated traffic.
		> When adding 5 interfaces like this, if there are
roll-overs, mrtg
		> distinguish which individual counter is rolling over.
I can't
		> this working properly.
		> Better would be to create 5 targets, then use
routers2.cgi to create
		> stacked graph meta-target.
		> >
		In addition to what Daniel stated I jut wanted to add -
Are you sure
		the MaxBytes setting is correct? 125000000 is only 1000
megabits or
		depending on how your conversion (kibi vs kilo) 953

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