XYLAN-HREX-MIB :: xylanHrexCollisionLengthAvg

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › XYLAN-HREX-MIB › xylanHrexCollisionLengthAvg

xylanHrexCollisionLengthAvg

Module: XYLAN-HREX-MIB

OID (symbolic): XYLAN-HREX-MIB::xylanHrexCollisionLengthAvg

OID (numeric): 1.3.6.1.4.1.800.2.31.3.8

Node type: OBJECT-TYPE

Type: Counter

Access: read-only

Description: The average collision chain length currently in use in the HRE-X.

What is xylanHrexCollisionLengthAvg?

This read-only Counter reports the average hash-collision chain length currently in use in the HRE-X PseudoCAM. An admin uses this alongside the maximum chain length to judge overall hash-table health and lookup performance on the HRE-X. For example, a rising average chain length across the whole PseudoCAM signals it may be time to run a hash optimization.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.800.2.31.3.8
snmpwalk -v2c -c public <target> XYLAN-HREX-MIB::xylanHrexCollisionLengthAvg

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.800.2.31.3.8.1
snmpget -v2c -c public <target> XYLAN-HREX-MIB::xylanHrexCollisionLengthAvg.1

Start monitoring Xylan/Alcatel OmniSwitch chassis (IP/IPX packet-forwarding counter, CAM/hash-table-utilization status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the XYLAN-HREX-MIB::xylanHrexCollisionLengthAvg OID value, configure state conditions and alerts, and monitor any Xylan/Alcatel OmniSwitch chassis (IP/IPX packet-forwarding counter, CAM/hash-table-utilization status) from a single console.

OID Breakdown

Upper-level ancestors (9 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.800xylanXYLAN-BASE-MIB
1.3.6.1.4.1.800.2xylanArchXYLAN-BASE-MIB
1.3.6.1.4.1.800.2.31xylanHrexArchXYLAN-BASE-MIB
Numeric OIDNameModule
1.3.6.1.4.1.800.2.31.3xylanHrexUtilizationXYLAN-HREX-MIB
1.3.6.1.4.1.800.2.31.3.8xylanHrexCollisionLengthAvgXYLAN-HREX-MIB