[ifIndex] => 4

[ifDescr] => eth0

[ifType] => ethernetCsmacd

[ifMtu] => 1500

[ifSpeed] => 1000000000

[ifPhysAddress] => 8:x0:xe:xc:ex:xe

[ifAdminStatus] => up

[ifOperStatus] => up

[ifLastChange] => 0:0:00:00.00

[ifInOctets] => 529940242

[ifInUcastPkts] => 225555807

[ifInNUcastPkts] => 0

[ifInDiscards] => 0

[ifInErrors] => 0

[ifInUnknownProtos] => 0

[ifOutOctets] => 1075923292

[ifOutUcastPkts] => 280183099

[ifOutNUcastPkts] => 0

[ifOutDiscards] => 0

[ifOutErrors] => 0

[ifOutQLen] => 0

[ifSpecific] => zeroDotZero

[ifName] => eth0

[ifInMulticastPkts] => 0

[ifInBroadcastPkts] => 0

[ifOutMulticastPkts] => 0

[ifOutBroadcastPkts] => 0

[ifHCInOctets] => 56364515090

[ifHCInUcastPkts] => 225555807

[ifHCInMulticastPkts] => 0

[ifHCInBroadcastPkts] => 0

[ifHCOutOctets] => 275953830236

[ifHCOutUcastPkts] => 280183099

[ifHCOutMulticastPkts] => 0

[ifHCOutBroadcastPkts] => 0

[ifHighSpeed] => 1000

[ifPromiscuousMode] => false

[ifConnectorPresent] => true

[ifAlias] => 

[ifCounterDiscontinuityTime] => 0:0:00:00.00

Linux 3.10.9-xxxx-grs-ipv6-64 (Debian 7)

This interface support IPv4 & IPv6 and I actually have some traffic on it.

At first I thougth it was a probleme with IPv4 + v6 but I also got an old machine with IPv4 only and this machine got empty graph too.

Any idea to solve this ?

Maxence