All MIBs › CISCO-UNIFIED-FIREWALL-MIB › cufwConnNumHalfOpen
cufwConnNumHalfOpen
Module: CISCO-UNIFIED-FIREWALL-MIB
OID (symbolic): CISCO-UNIFIED-FIREWALL-MIB::cufwConnNumHalfOpen
OID (numeric): 1.3.6.1.4.1.9.9.491.1.1.4.1.1.6
Node type: OBJECT-TYPE
Type: Gauge32
Access: read-only
Description: The number of connections that are currently in the process of being established, corresponding to the protocol denoted by 'cufwConnProtocol'.
What is cufwConnNumHalfOpen?
This gauge reports the number of connections for the specific protocol denoted by cufwConnProtocol that are currently in the process of being established but have not yet reached the established state. An admin checks this per-protocol figure to see which protocol is contributing to an elevated global half-open count. For example, if the global half-open count is climbing, checking this table would show the admin whether it's driven by one specific protocol's incomplete handshakes, useful for pinpointing a targeted flood.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.491.1.1.4.1.1.6 snmpwalk -v2c -c public <target> CISCO-UNIFIED-FIREWALL-MIB::cufwConnNumHalfOpen
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.491.1.1.4.1.1.6.1 snmpget -v2c -c public <target> CISCO-UNIFIED-FIREWALL-MIB::cufwConnNumHalfOpen.1
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OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.9 | ciscoMgmt | CISCO-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.9.491 | ciscoUnifiedFirewallMIB | CISCO-UNIFIED-FIREWALL-MIB |
| 1.3.6.1.4.1.9.9.491.1 | ciscoUnifiedFirewallMIBObjects | CISCO-UNIFIED-FIREWALL-MIB |
| 1.3.6.1.4.1.9.9.491.1.1 | cuFwConnectionGrp | CISCO-UNIFIED-FIREWALL-MIB |
| 1.3.6.1.4.1.9.9.491.1.1.4 | cuFwConnectionSummaryTables | CISCO-UNIFIED-FIREWALL-MIB |
| 1.3.6.1.4.1.9.9.491.1.1.4.1 | cufwConnSummaryTable | CISCO-UNIFIED-FIREWALL-MIB |
| 1.3.6.1.4.1.9.9.491.1.1.4.1.1 | cufwConnSummaryEntry | CISCO-UNIFIED-FIREWALL-MIB |
| 1.3.6.1.4.1.9.9.491.1.1.4.1.1.6 | cufwConnNumHalfOpen | CISCO-UNIFIED-FIREWALL-MIB |