All MIBs › ALTEON-CHEETAH-LAYER7-MIB › urlMaintStatHalfOpens
urlMaintStatHalfOpens
Module: ALTEON-CHEETAH-LAYER7-MIB
OID (symbolic): ALTEON-CHEETAH-LAYER7-MIB::urlMaintStatHalfOpens
OID (numeric): 1.3.6.1.4.1.1872.2.5.5.2.1.3.4
Node type: OBJECT-TYPE
Type: Gauge32
Access: read-only
Description: The number of outstanding TCP connections have been half opened. This statistics is valid only when URL parsing has been turned on. It is incremented when the switch respond to TCP SYN packet and decremented upon receiving TCP SYN ACK packet from the requester.
What is urlMaintStatHalfOpens?
Reports the current number of TCP connections that are in a half-open state, meaning the switch has responded to a SYN but has not yet received the client's SYN-ACK. A high or growing value may indicate a SYN flood attack or connectivity issues.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1872.2.5.5.2.1.3.4 snmpwalk -v2c -c public <target> ALTEON-CHEETAH-LAYER7-MIB::urlMaintStatHalfOpens
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1872.2.5.5.2.1.3.4.1 snmpget -v2c -c public <target> ALTEON-CHEETAH-LAYER7-MIB::urlMaintStatHalfOpens.1
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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 |
| 1.3.6.1.4.1.1872 | alteon | ALTEON-PRIVATE-MIBS |
| 1.3.6.1.4.1.1872.2 | private_mibs | ALTEON-PRIVATE-MIBS |
| 1.3.6.1.4.1.1872.2.5 | aws_switch | ALTEON-ROOT-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.1872.2.5.5 | layer7 | ALTEON-CHEETAH-LAYER7-MIB |
| 1.3.6.1.4.1.1872.2.5.5.2 | layer7Stats | ALTEON-CHEETAH-LAYER7-MIB |
| 1.3.6.1.4.1.1872.2.5.5.2.1 | urlStats | ALTEON-CHEETAH-LAYER7-MIB |
| 1.3.6.1.4.1.1872.2.5.5.2.1.3 | urlMaintStats | ALTEON-CHEETAH-LAYER7-MIB |
| 1.3.6.1.4.1.1872.2.5.5.2.1.3.4 | urlMaintStatHalfOpens | ALTEON-CHEETAH-LAYER7-MIB |