All MIBs › XYLAN-HREX-MIB › xylanHrexCacheFree
xylanHrexCacheFree
Module: XYLAN-HREX-MIB
OID (symbolic): XYLAN-HREX-MIB::xylanHrexCacheFree
OID (numeric): 1.3.6.1.4.1.800.2.31.3.6
Node type: OBJECT-TYPE
Type: Counter
Access: read-only
Description: The total number of HRE-X cache entries that are currently not in use.
What is xylanHrexCacheFree?
This read-only Counter reports the number of HRE-X cache entries currently not in use, out of the total configured. An admin monitors this for cache exhaustion, since a depleted forwarding cache can force more traffic through slower software-based lookups. For example, a free-entry count consistently near zero during peak traffic suggests the HRE-X cache is undersized for the current flow volume.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.800.2.31.3.6 snmpwalk -v2c -c public <target> XYLAN-HREX-MIB::xylanHrexCacheFree
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.800.2.31.3.6.1 snmpget -v2c -c public <target> XYLAN-HREX-MIB::xylanHrexCacheFree.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::xylanHrexCacheFree 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 OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.800 | xylan | XYLAN-BASE-MIB |
| 1.3.6.1.4.1.800.2 | xylanArch | XYLAN-BASE-MIB |
| 1.3.6.1.4.1.800.2.31 | xylanHrexArch | XYLAN-BASE-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.800.2.31.3 | xylanHrexUtilization | XYLAN-HREX-MIB |
| 1.3.6.1.4.1.800.2.31.3.6 | xylanHrexCacheFree | XYLAN-HREX-MIB |