CISCO-UNIFIED-FIREWALL-MIB :: cufwUrlfResTotalRequestCacheSize

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-UNIFIED-FIREWALL-MIBcufwUrlfResTotalRequestCacheSize

cufwUrlfResTotalRequestCacheSize

Module: CISCO-UNIFIED-FIREWALL-MIB

OID (symbolic): CISCO-UNIFIED-FIREWALL-MIB::cufwUrlfResTotalRequestCacheSize

OID (numeric): 1.3.6.1.4.1.9.9.491.1.3.2.1

Node type: OBJECT-TYPE

Type: Gauge32

Access: read-only

Description: The amount of memory occupied by all the caches used in the firewall to cache pending URL access requests.

What is cufwUrlfResTotalRequestCacheSize?

This Gauge32, in KBytes, reports how much memory all the firewall's caches for pending URL access requests are currently occupying. An admin can watch this to understand memory pressure coming specifically from queued, not-yet-answered URL lookups. A steadily climbing value here alongside growing cufwUrlfNumServerTimeouts would suggest requests are piling up in the pending cache because the filtering server isn't keeping up.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.491.1.3.2.1
snmpwalk -v2c -c public <target> CISCO-UNIFIED-FIREWALL-MIB::cufwUrlfResTotalRequestCacheSize

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.491.1.3.2.1.1
snmpget -v2c -c public <target> CISCO-UNIFIED-FIREWALL-MIB::cufwUrlfResTotalRequestCacheSize.1

Start monitoring Cisco ASA firewalls / IOS zone-based firewall devices with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCO-UNIFIED-FIREWALL-MIB::cufwUrlfResTotalRequestCacheSize OID value, configure state conditions and alerts, and monitor any Cisco ASA firewalls / IOS zone-based firewall devices from a single console.

OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.9ciscoCAT2600-MIB
1.3.6.1.4.1.9.9ciscoMgmtCISCO-SMI
Numeric OIDNameModule
1.3.6.1.4.1.9.9.491ciscoUnifiedFirewallMIBCISCO-UNIFIED-FIREWALL-MIB
1.3.6.1.4.1.9.9.491.1ciscoUnifiedFirewallMIBObjectsCISCO-UNIFIED-FIREWALL-MIB
1.3.6.1.4.1.9.9.491.1.3cuFwUrlFilterGrpCISCO-UNIFIED-FIREWALL-MIB
1.3.6.1.4.1.9.9.491.1.3.2cufwUrlFilterResourceUsageCISCO-UNIFIED-FIREWALL-MIB
1.3.6.1.4.1.9.9.491.1.3.2.1cufwUrlfResTotalRequestCacheSizeCISCO-UNIFIED-FIREWALL-MIB