CTRON-FNBTR-MIB :: ctronFnbBypass

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › CTRON-FNBTR-MIB › ctronFnbBypass

ctronFnbBypass

Module: CTRON-FNBTR-MIB

OID (symbolic): CTRON-FNBTR-MIB::ctronFnbBypass

OID (numeric): 1.3.6.1.4.1.52.4.1.2.6.1.1.1.1.4

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: Denotes the bypass status of the current Token Ring board.

What is ctronFnbBypass?

Reports and controls whether this Token Ring board's FNB bypass relay is enabled(3) or disabled(2), letting traffic route around the board. Admins enable bypass before removing or servicing a board so the FNB ring stays intact for the other boards, then disable it once the board is reinserted and operational. An admin would set ctronFnbBypass to enabled(3) on a slot before hot-swapping that Token Ring board, preventing a ring break during the swap.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.6.1.1.1.1.4
snmpwalk -v2c -c public <target> CTRON-FNBTR-MIB::ctronFnbBypass

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.6.1.1.1.1.4.1
snmpget -v2c -c public <target> CTRON-FNBTR-MIB::ctronFnbBypass.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.52.4.1.2.6.1.1.1.1.4.1 i <value>

Start monitoring Cabletron MMAC-family chassis with Token Ring modules (FNB backplane) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CTRON-FNBTR-MIB::ctronFnbBypass OID value, configure state conditions and alerts, and monitor any Cabletron MMAC-family chassis with Token Ring modules (FNB backplane) from a single console.

OID Breakdown

Upper-level ancestors (12 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
1.3.6.1.4.1.52.4.1.2ctDataLinkCTRON-MIB-NAMES
1.3.6.1.4.1.52.4.1.2.6ctTokenRingCTRON-MIB-NAMES
1.3.6.1.4.1.52.4.1.2.6.1ctTokenRingFnbCTRON-MIB-NAMES
Numeric OIDNameModule
1.3.6.1.4.1.52.4.1.2.6.1.1ctronFnbTRCTRON-FNBTR-MIB
1.3.6.1.4.1.52.4.1.2.6.1.1.1ctronFnbTRTableCTRON-FNBTR-MIB
1.3.6.1.4.1.52.4.1.2.6.1.1.1.1ctronFnbTREntryCTRON-FNBTR-MIB
1.3.6.1.4.1.52.4.1.2.6.1.1.1.1.4ctronFnbBypassCTRON-FNBTR-MIB