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Saud_Marwat_326's avatar
Saud_Marwat_326
Icon for Nimbostratus rankNimbostratus
Aug 31, 2017

Inbound/Outbound bandwidth usage on interface exceeded the threshold

Hi i am receiving the alarm "Outbound bandwidth usage on interface exceeded the threshold" i.e; 100% on HAVLAN Of F5 LTM Devices.Is it Normal or critical?How to resolve this issue?  
application delivery
BIG-IP
LTM
Jad_Tabbara__J1's avatar
Jad_Tabbara__J1
Icon for Cirrostratus rankCirrostratus
Sep 05, 2017

Hello Saud,

I guess you are using VE BIG IP because usually this alarm occurs when your system has exceed the max allowed throughput rate subscribed in your license.

To display this rate using advanced shell command line, type the following command:

grep "perf_VE_throughput_Mbps" /config/bigip.license

Source : https://support.f5.com/csp/article/K14356

It is a critical alarm, because when the threshold is reached, the system will start dropping connections...

You can use following command to list the number of ingress/egress packets that have been dropped by each TMM :

tmctl -d blade tmm/if_shaper

Source: https://support.f5.com/csp/article/K15831

If that was the issue then you will need to upgrade your license...

Regards