All MIBs › CISCO-IETF-DHCP-SERVER-EXT-MIB › cDhcpv4ServerSubnetFreeAddressHighEnable
cDhcpv4ServerSubnetFreeAddressHighEnable
Module: CISCO-IETF-DHCP-SERVER-EXT-MIB
OID (symbolic): CISCO-IETF-DHCP-SERVER-EXT-MIB::cDhcpv4ServerSubnetFreeAddressHighEnable
OID (numeric): 1.3.6.1.4.1.9.10.122.1.6.5
Node type: OBJECT-TYPE
Type: TruthValue
Access: read-write
Description: This object specifies if the DHCP module should generate 'cDhcpv4ServerSubnetFreeAddressHigh' notifications.
If value of this object is 'true', then the notification is generated when the number of available IPv4 addresses for a particular subnet has fallen below the value of cDhcpv4ServerSubnetFreeAddrHighThreshold for that subnet.
If it is 'false', the notification is not generated.
What is cDhcpv4ServerSubnetFreeAddressHighEnable?
This read-write setting enables or disables a notification that fires when the count of free IPv4 addresses in a subnet crosses a configured high threshold, used to signal address pool recovery or utilization changes.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.10.122.1.6.5 snmpwalk -v2c -c public <target> CISCO-IETF-DHCP-SERVER-EXT-MIB::cDhcpv4ServerSubnetFreeAddressHighEnable
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.10.122.1.6.5.1 snmpget -v2c -c public <target> CISCO-IETF-DHCP-SERVER-EXT-MIB::cDhcpv4ServerSubnetFreeAddressHighEnable.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.9.10.122.1.6.5.1 s <value>
Start monitoring Cisco IOS router/switch configured as a DHCP server with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCO-IETF-DHCP-SERVER-EXT-MIB::cDhcpv4ServerSubnetFreeAddressHighEnable OID value, configure state conditions and alerts, and monitor any Cisco IOS router/switch configured as a DHCP server from a single console.
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 |
| 1.3.6.1.4.1.9.10 | ciscoExperiment | CISCO-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.10.122 | ciscoIetfDhcpSrvExtMIB | CISCO-IETF-DHCP-SERVER-EXT-MIB |
| 1.3.6.1.4.1.9.10.122.1 | ciscoIetfDhcpv4SrvExtMIBObjects | CISCO-IETF-DHCP-SERVER-EXT-MIB |
| 1.3.6.1.4.1.9.10.122.1.6 | cDhcpv4CfgObjects | CISCO-IETF-DHCP-SERVER-EXT-MIB |
| 1.3.6.1.4.1.9.10.122.1.6.5 | cDhcpv4ServerSubnetFreeAddressHighEnable | CISCO-IETF-DHCP-SERVER-EXT-MIB |