CTRON-IGMP-MIB :: ctIGMPDiscoveredRouterEgressPortList

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › CTRON-IGMP-MIB › ctIGMPDiscoveredRouterEgressPortList

ctIGMPDiscoveredRouterEgressPortList

Module: CTRON-IGMP-MIB

OID (symbolic): CTRON-IGMP-MIB::ctIGMPDiscoveredRouterEgressPortList

OID (numeric): 1.3.6.1.4.1.52.4.1.3.5.1.8.1.4

Node type: OBJECT-TYPE

Type: PortList

Access: read-only

Description: The set of bridge ports that IGMP believes has valid egress.

What is ctIGMPDiscoveredRouterEgressPortList?

Lists the bridge ports the switch currently believes have a valid multicast router egress path, i.e. the subset of discovered-router ports it trusts enough to actually forward multicast traffic toward.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.1.3.5.1.8.1.4
snmpwalk -v2c -c public <target> CTRON-IGMP-MIB::ctIGMPDiscoveredRouterEgressPortList

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.1.3.5.1.8.1.4.1
snmpget -v2c -c public <target> CTRON-IGMP-MIB::ctIGMPDiscoveredRouterEgressPortList.1

Start monitoring Cabletron/Enterasys Layer 2/3 switch (IGMP snooping) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CTRON-IGMP-MIB::ctIGMPDiscoveredRouterEgressPortList OID value, configure state conditions and alerts, and monitor any Cabletron/Enterasys Layer 2/3 switch (IGMP snooping) from a single console.

OID Breakdown

Upper-level ancestors (11 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.52cabletronCabletron-MIB
1.3.6.1.4.1.52.4mibsCT-PRIORITY-QUEUING
1.3.6.1.4.1.52.4.1ctronCTRON-MIB-NAMES
1.3.6.1.4.1.52.4.1.3ctNetworkCTRON-MIB-NAMES
1.3.6.1.4.1.52.4.1.3.5ctIGMPBranchCTRON-MIB-NAMES
Numeric OIDNameModule
1.3.6.1.4.1.52.4.1.3.5.1ctIGMPCTRON-IGMP-MIB
1.3.6.1.4.1.52.4.1.3.5.1.8ctIGMPDiscoveredRouterTableCTRON-IGMP-MIB
1.3.6.1.4.1.52.4.1.3.5.1.8.1ctIGMPDiscoveredRouterEntryCTRON-IGMP-MIB
1.3.6.1.4.1.52.4.1.3.5.1.8.1.4ctIGMPDiscoveredRouterEgressPortListCTRON-IGMP-MIB