BigIP F5 models in Spectrum showing memory threshold of 99% consistently

Products

• Spectrum

Issue/Introduction

BigIP F5 models in Spectrum showing memory threshold of 99% consistently

Environment

Release: Any
Component:

Cause

Spectrum uses the sysMultiHostUsed (Spectrum attribute id 0x3b71af3) and sysMultiHostTotal (Spectrum attribute id 0x3b71af2) to compute memory on the F5 devices. These attributes are defined in the F5-BIGIP-SYSTEM-MIB as follows:

 

sysMultiHostTotal OBJECT-TYPE

        SYNTAX Counter64

        MAX-ACCESS read-only

        STATUS current

        DESCRIPTION

                "The total host memory in bytes (not including TMM) for the specified host."

        ::= { sysMultiHostEntry 2 }

 

sysMultiHostUsed OBJECT-TYPE

        SYNTAX Counter64

        MAX-ACCESS read-only

        STATUS current

        DESCRIPTION

                "The host memory in bytes currently in use (not including TMM) for the specified host."

        ::= { sysMultiHostEntry 3 }

 

Manually computing memory based on these attribute values shows Spectrum is computing memory correctly according.

Resolution

No resolution in Spectrum as Spectrum is computing memory correctly based on the values read from the device for the sysMultiHostUsed and sysMultiHostTotal attributes.