IB-SM-MIB :: ibSmPortInfoLinkWidthActive

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › IB-SM-MIB › ibSmPortInfoLinkWidthActive

ibSmPortInfoLinkWidthActive

Module: IB-SM-MIB

OID (symbolic): IB-SM-MIB::ibSmPortInfoLinkWidthActive

OID (numeric): 1.3.6.1.3.117.7.1.3.1.1.13

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-only

Description: Currently active link width. Indicated as follows: 1: 1x; 2: 4x; 8: 12x; other values reserved.

What is ibSmPortInfoLinkWidthActive?

The link width currently in use: 1 is 1x, 2 is 4x, 8 is 12x. If a port shows 1x when 4x is supported, the link has degraded, often due to a bad cable or connector, and performance will drop accordingly.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.3.117.7.1.3.1.1.13
snmpwalk -v2c -c public <target> IB-SM-MIB::ibSmPortInfoLinkWidthActive

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.3.117.7.1.3.1.1.13.1
snmpget -v2c -c public <target> IB-SM-MIB::ibSmPortInfoLinkWidthActive.1

Start monitoring InfiniBand subnet manager node/switch (vendor-neutral IETF standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IB-SM-MIB::ibSmPortInfoLinkWidthActive OID value, configure state conditions and alerts, and monitor any InfiniBand subnet manager node/switch (vendor-neutral IETF standard) from a single console.

OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.3experimentalAPERTUS-NPG-MIB
1.3.6.1.3.117pmIB-PM-MIB
Numeric OIDNameModule
1.3.6.1.3.117.7ibSmMIBIB-SM-MIB
1.3.6.1.3.117.7.1ibSmMIBObjectsIB-SM-MIB
1.3.6.1.3.117.7.1.3ibSmPortInfoIB-SM-MIB
1.3.6.1.3.117.7.1.3.1ibSmPortInfoTableIB-SM-MIB
1.3.6.1.3.117.7.1.3.1.1ibSmPortInfoEntryIB-SM-MIB
1.3.6.1.3.117.7.1.3.1.1.13ibSmPortInfoLinkWidthActiveIB-SM-MIB