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

[reena SINGH]

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 v3.
  Thanks & Regards
  Reena


Steve Shipway <s.shipway at auckland.ac.nz> wrote:
        v\:* {behavior:url(#default#VML);}  o\:* {behavior:url(#default#VML);}  w\:* {behavior:url(#default#VML);}  .shape {behavior:url(#default#VML);}                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.
   
  Steve
   
        
---------------------------------
  
  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
than
> > 930 mbps. but it not showing the traffic more than 930 mbps . it
got
> > saturated on 930 mbps when trafic goes more than 930mbps.
> > 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
can't
> distinguish which individual counter is rolling over.  I can't
imagine
> this working properly.
>
> Better would be to create 5 targets, then use routers2.cgi to create
a
> stacked graph meta-target.
> >


Reena,

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 megabits.




    
    
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