All MIBs › IPV6-MIB › ipv6IfStateChange
ipv6IfStateChange
Module: IPV6-MIB
OID (symbolic): IPV6-MIB::ipv6IfStateChange
OID (numeric): 1.3.6.1.2.1.55.2.0.1
Node type: NOTIFICATION-TYPE
Description:
An ipv6IfStateChange notification signifies that there has been a change in the state of an ipv6 interface. This notification should be generated when the interface's operational status transitions to or from the up(1) state.
This object is obsoleted by IF-MIB::linkUp and IF-MIB::linkDown notifications.
What is ipv6IfStateChange?
This notification is generated when an IPv6 interface transitions to or from the up state, signaling a change in interface operational status. Although this object is now obsoleted in favor of the newer IF-MIB::linkUp and IF-MIB::linkDown notifications, it was historically used to alert management systems about IPv6 interface flaps. Legacy monitoring systems may still expect this alarm when troubleshooting IPv6 connectivity issues.
Examples
Send this trap to an SNMP manager — replace <manager> with the IP or hostname of your monitoring server (SNMPv2c):
snmptrap -v2c -c public <manager> '' IPV6-MIB::ipv6IfStateChange snmptrap -v2c -c public <manager> '' 1.3.6.1.2.1.55.2.0.1
Listen for incoming traps on the manager host (-f keeps it in the foreground, -Lo prints to stdout — useful for testing):
snmptrapd -f -Lo -c /dev/null authCommunity log public
Example snmptrapd log entry:
zoo11-linux.zoo [UDP: [192.168.30.111]:61584->[192.168.30.10]:162]: DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (131911824) 15 days, 6:25:18.24 SNMPv2-MIB::snmpTrapOID.0 = OID: IPV6-MIB::ipv6IfStateChange
OID Breakdown
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | BIANCA-BRICK-PPP-MIB |
| 1.3.6 | dod | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1 | internet | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1.2 | mgmt | BKTEL-HFC862-BASE-MIB |
| 1.3.6.1.2.1 | mib_2 | CHECKPOINT-MIB-2 |
| 1.3.6.1.2.1.55 | ipv6MIB | IPV6-MIB |
| 1.3.6.1.2.1.55.2 | ipv6Notifications | IPV6-MIB |
| 1.3.6.1.2.1.55.2.0 | ipv6NotificationPrefix | IPV6-MIB |
| 1.3.6.1.2.1.55.2.0.1 | ipv6IfStateChange | IPV6-MIB |