Reference Guide

SNMP Support for Buffer Statistics Tracking
SNMP support for buffer statistics tracking (BST) counters is implemented in the F10-FPSTATS MIB. BST counters allow you to
better monitor system resources and allocate buffer memory.
BST counters include the Max Use Count statistic, which provides the maximum counter value over a period of time.
In the F10-FPSTATS MIB, the following tables display BST counters:
● fpEgrQBuffSnapshotTable: Retrieves BST statistics from the egress port used in a buffer. This table displays a snapshot of
the buffer cells used by unicast and multicast data and control queues.
●
fpIngPgBuffSnapshotTable: Retrieves BST statistics from the ingress port for the shared and headroom cells used in a
priority group. The snapshot of the ingress shared cells and the ingress headroom cells used for each priority group are
displayed in this table when PFC is enabled. This table is indexed by stack-unit index, port number and priority-group number.
● fpStatsPerPgTable: Retrieves information on the allocated Min cells, shared cells, and headroom cells for each priority group,
the mode in which the buffer cells are allocated (static or dynamic), and the used Min cells, shared cells, and headroom cells
for each priority group. The table returns a value of 0 if the allocation mode is static and a value of 1 if the allocation mode is
dynamic. This table is indexed by stack-unit number, port number and priority-group number.
626 Quality of Service (QoS)