All MIBs › RAPID-CITY › rcSmltIstLinkDown
rcSmltIstLinkDown
Module: RAPID-CITY
OID (symbolic): RAPID-CITY::rcSmltIstLinkDown
OID (numeric): 1.3.6.1.4.1.2272.1.21.18
Node type: NOTIFICATION-TYPE
Description: A rcSmltIstLinkDown trap signifies that the split MLT link is from up to down.
What is rcSmltIstLinkDown?
This notification (trap) is sent when a split MLT (Multi-Link Trunking) link transitions from up to down, indicating a link failure in a redundant trunk group. MLT uses multiple parallel links for aggregated bandwidth and redundancy; a single link down doesn't break the trunk but reduces capacity. An operator subscribes to this trap to be alerted immediately when trunk redundancy is compromised.
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> '' RAPID-CITY::rcSmltIstLinkDown snmptrap -v2c -c public <manager> '' 1.3.6.1.4.1.2272.1.21.18
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]:60809->[192.168.30.10]:162]: DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (161004425) 18 days, 15:14:04.25 SNMPv2-MIB::snmpTrapOID.0 = OID: RAPID-CITY::rcSmltIstLinkDown
Start monitoring Bay Networks/Nortel Accelar and Ethernet Routing Switch (ERS) chassis switches with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the RAPID-CITY::rcSmltIstLinkDown OID value, configure state conditions and alerts, and monitor any Bay Networks/Nortel Accelar and Ethernet Routing Switch (ERS) chassis switches from a single console.
OID Breakdown
Upper-level ancestors (6 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 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.2272 | rapidCity | RAPID-CITY |
| 1.3.6.1.4.1.2272.1 | rcMgmt | RAPID-CITY |
| 1.3.6.1.4.1.2272.1.21 | rcTraps | RAPID-CITY |
| 1.3.6.1.4.1.2272.1.21.18 | rcSmltIstLinkDown | RAPID-CITY |