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Increase Shared Buffer Pool

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Increase Shared Buffer Pool

By default, the switch allocates 44.42 MB of the total 64 MB of global buffer space to shared buffers. The switch allocates the remaining buffer space to dedicated buffers (ingress and egress). You can decrease the global dedicated buffer space from the default value. effectively increasing the global shared buffer space to up to 60 MB.

You can also define a dedicated buffer profile to increase or decrease the dedicated buffer allocated to an individual port. This feature is particularly useful for decreasing dedicated buffer space on unused or down ports, thereby increasing dedicated buffer space available to active ports.

Product / Application Software Introduced Release
QFX5220-32CD Junos OS Evolved 23.2R1
QFX5220-128C Junos OS Evolved 23.2R1
QFX5230-64CD Junos OS Evolved 24.4R1
QFX5240-64QD Junos OS Evolved 24.4R1
QFX5240-64QD Junos OS Evolved 23.4R2
QFX5240-64OD Junos OS Evolved 24.4R1
QFX5240-64OD Junos OS Evolved 23.4R2
QFX5241-64OD Junos OS Evolved 23.4X100-D40
QFX5241-64QD Junos OS Evolved 23.4X100-D40
QFX5241-32OD Junos OS Evolved 25.4R1
QFX5241-32OD Junos OS Evolved 23.4X100-D43
QFX5241-32OD Junos OS Evolved 23.4X100-D40
QFX5250-64OE-L Junos OS Evolved 25.2X100-D20