All MIBs › RAPID-CITY › rcnSmltIstLinkDown
rcnSmltIstLinkDown
Module: RAPID-CITY
OID (symbolic): RAPID-CITY::rcnSmltIstLinkDown
OID (numeric): 1.3.6.1.4.1.2272.1.21.0.18
Node type: NOTIFICATION-TYPE
Description:
A rcSmltIstLinkDown trap signifies that the split MLT link is from up to down.
What is rcnSmltIstLinkDown?
This notification (trap) signals that a Split MLT (Multi-Link Trunk) interswitch link has transitioned from up to down, indicating a loss of connection in a redundant link pair. Split MLT provides high availability by bonding multiple links between switches; this trap alerts administrators to a failure requiring investigation. An operator receiving this trap should verify the physical link status and check for hardware or configuration 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> '' RAPID-CITY::rcnSmltIstLinkDown snmptrap -v2c -c public <manager> '' 1.3.6.1.4.1.2272.1.21.0.18
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]:59549->[192.168.30.10]:162]: DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (145237149) 16 days, 19:26:11.49 SNMPv2-MIB::snmpTrapOID.0 = OID: RAPID-CITY::rcnSmltIstLinkDown
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 |
| 1.3.6.1.4 | private | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1.4.1 | enterprises | ANIROOT-MIB |
| 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 |
| 1.3.6.1.4.1.2272.1.21.0 | rcTrapsMib | RAPID-CITY |
| 1.3.6.1.4.1.2272.1.21.0.18 | rcnSmltIstLinkDown | RAPID-CITY |