Get Wan Bandwidth via SNMP

Forum|Forum|9 years ago
March 1, 2017
2 replies
33550 views

Hi

I want to monitor each WAN Interface Traffic via SNMP, to get output similar to the value in Interface History Widget only via SNMP

Is there any way to get Wan1 and Wan2 Current Bandwidth?

I looked in to Fortigate MIB and the only Bandwidth MIB I Found is "fgHaStatsNetUsage" - Network Usage of Cluster (HA)

I dont Think this is the one I need,

any ideas?

Best answer by Alby23

You should use InOctects and OutOctects for the relevant interfaces, read those values every "x" time (i.e. every 60 seconds) then perform a delta between the last data and the previous one.

In this way you'll have the number of octet in 60 seconds; if you multiply that number by 8, you'll have the bits.

After that a simple math formula and you have the average Mbps for that time interval.

Alby23Answer

New Member

You should use InOctects and OutOctects for the relevant interfaces, read those values every "x" time (i.e. every 60 seconds) then perform a delta between the last data and the previous one.

In this way you'll have the number of octet in 60 seconds; if you multiply that number by 8, you'll have the bits.

After that a simple math formula and you have the average Mbps for that time interval.

jintrah_FTNT

Staff

Hi,

Below oids can be used

IF-MIB:interfaces.ifTable.ifEntry.ifInOctets - 1.3.6.1.2.1.2.2.1.10

IF-MIB:interfaces.ifTable.ifEntry.ifOutOctets -1.3.6.1.2.1.2.2.1.16

one_co_ilAuthor

New Member

Tanks it's working more or less

but there still some issue, how can i tell when the value is reset?

for now i calc the values Delta with 10s delay, somtimes i get negetive value because the Values reset and the second Value is lower the the first

tspark

New Member

We use PRTG Network Monitor and their built-in SNMP bandwidth sensor. It works great when needing real-time and historic bandwidth usage. However I have found that with the latest version of FortiOS (5.4.4), we're not getting accurate bandwidth readings on VLANS, however the physical interfaces are still reporting as they should. I have not yet tried 5.6.0.