All MIBs › RFC1286-MIB › dot1dSrPortDuplicateSegmentDiscards
dot1dSrPortDuplicateSegmentDiscards
Module: RFC1286-MIB
OID (symbolic): RFC1286-MIB::dot1dSrPortDuplicateSegmentDiscards
OID (numeric): 1.3.6.1.2.1.17.3.1.1.15
Node type: OBJECT-TYPE
Type: Counter
Access: read-only
Description: The number of frames that have been discarded by this port because the routing descriptor field contained a duplicate segment identifier.
What is dot1dSrPortDuplicateSegmentDiscards?
This counter tracks the number of frames this port has discarded because the routing descriptor field contained a duplicate segment identifier, which typically indicates a routing loop. Admins treat a nonzero or rising value as a red flag for a source routing loop or duplicate segment number assignment somewhere in the network. Discovering this counter incrementing rapidly would prompt an audit of segment numbering across all bridges.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.17.3.1.1.15 snmpwalk -v2c -c public <target> RFC1286-MIB::dot1dSrPortDuplicateSegmentDiscards
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.17.3.1.1.15.1 snmpget -v2c -c public <target> RFC1286-MIB::dot1dSrPortDuplicateSegmentDiscards.1
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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 |
| 1.3.6.1.2 | mgmt | AXON-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| 1.3.6.1.2.1.17 | dot1dBridge | BRIDGE-MIB |
| 1.3.6.1.2.1.17.3 | dot1dSr | BRIDGE-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.17.3.1 | dot1dSrPortTable | RFC1286-MIB |
| 1.3.6.1.2.1.17.3.1.1 | dot1dSrPortEntry | RFC1286-MIB |
| 1.3.6.1.2.1.17.3.1.1.15 | dot1dSrPortDuplicateSegmentDiscards | RFC1286-MIB |