Interface Traffic re-init problem

jerome · Joined: 29 Oct 2007 Posts: 5

Hi,

I'm installing a new server in order to replace an old one. It's running Centos 4.6. I have installed Cacti 0.8.7b et Spine 0.8.7a, with rpmforge. After few problems with spine usage ... almost everything is ok ... except one thing :
The graph of traffic usage for my network interface.

When the value is going over 114Mbits/s, the graph is reseting to zero .. going up .. up until 114Mb/s. It does the same while going down ... once it's arriving to zero, it restart to 114Mb/s until the real zero.

I'm having the same problem using Cacti 0.8.6i with cmd.php on the same server.

The server is running Centos 4.6, Cacti (0.8.6 or 0.8.7), net-snmp-5.1.2 & rrdtools-1.2.23

On a Debian one (Lenny/Sid ...

), I don't have this problem with 0.8.6i

Anyone one had also this problem and solved it ? Any help is welcome

Thanks
Jerome

TheWitness · Posted: Fri Jul 25, 2008 12:38 pm Post subject:

snmpV2c and 64bit counters.

TheWitness

jerome · Joined: 29 Oct 2007 Posts: 5

Thanks for helping

But I wonder why it is working on a Debian with snmp v1 and 32bits counter ?

[edit]In fact, I don't know if it is 32 or 64 counters on the debian one, but for sure it is snmp v1

TheWitness · Posted: Fri Jul 25, 2008 1:35 pm Post subject:

I would suggest that it is not working. But you know those debian guys. Who knows, they might have hacked the snmpd to return 64bit data on 32bit counters.

TheWitness

jerome · Joined: 29 Oct 2007 Posts: 5

How could I verify if cacti using 64 or 32 counters ?

here a pic of the 'correctly running' cacti, I don't have pic of the new one with the encountered problem because I've re-installed it this afternoon to try differents settings

TheWitness · Posted: Fri Jul 25, 2008 2:27 pm Post subject:

1) Edit the device, verify the snmp version in use
2) Hit "Create Graphs"
3) Select the interface stat's dropdown
4) Search for this interface
5) Foreach Graph Type Select It from the Dropdown Until The Line becomes Greyed out. That will be it. It's not too intrinsic at this point.

TheWitness

jerome · Joined: 29 Oct 2007 Posts: 5

Thanks for your help ! I'm learning many things tonight

So I confirm it's using snmp v1 and a 32bits counter .. and I get the graph attached in my previous message

Jerome

TheWitness · Posted: Fri Jul 25, 2008 3:56 pm Post subject:

Very intersting, do the following:

snmpwalk -c <yourcommunity> -v 1 <hostInQuestion> .1.3 > file_for_larry.txt

Then either e-mail or PM to me.

Larry