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MIB Reference

AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S V200R009

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A collection of collision histograms for a particular set of interfaces, including statistical information of CSMA/CD sub layer of Ethernet.

The indexes of this table are ifIndex and dot3CollCount.




Max Access


Implemented Specifications


Integer32 (1..16)


The number of per-frame media collisions for which a particular collision histogram cell represents the frequency on a particular interface.

This object is implemented as defined in the corresponding MIB files.




A count of individual MAC frames for which the transmission (successful or otherwise) on a particular interface occurs after the frame has experienced exactly the number of collisions in the associated dot3CollCount object.

This object is implemented as defined in the corresponding MIB files.

Creation Restriction

No entry can be created in this table.

Modification Restriction

The entries in this table cannot be modified.

Deletion Restriction

The entries in this table cannot be deleted.

Access Restriction

The device must contain an interface to read the table. The number of packets after the statistics can be read only if the interface and the number of collisions are specified. This function can only be supported by the 21143 chip in half-duplex mode.

Updated: 2019-07-19

Document ID: EDOC1000174090

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