Fabric Commands

nv show ib device

	nv show ib device [<device-id>] Shows InfiniBand devices' information.
Syntax Description	device-id	Optional: show information only for the specified IB device
Default	N/A
History	25.02.2002 25.02.8008 Updated output and added note
Example	# IB routing disabled admin@nvos:~$ nv show ib device Device Type IB Subnet GUID LID ------ -------- ------------------ ----------------------- --- ASIC1 Quantum3 infiniband-default B8:E9:24:03:00:00:B9:00 1 ASIC2 Quantum3 infiniband-default B8:E9:24:03:00:00:B9:20 3 ASIC3 Quantum3 infiniband-default B8:E9:24:03:00:00:B9:40 6 ASIC4 Quantum3 infiniband-default B8:E9:24:03:00:00:B9:60 8 SYSTEM B8:E9:24:03:00:00:B9:00 # IB routing enabled with num-of-swids 4 admin@nvos:~$ nv show ib device Device Type IB Subnet GUID LID ------ -------- ------------------ ----------------------- --- ASIC1 Quantum3 infiniband-default B8:E9:24:03:00:00:B9:00 1 ASIC1 Quantum3 infiniband-1 B8:E9:24:03:00:00:B9:01 0 ASIC1 Quantum3 infiniband-2 B8:E9:24:03:00:00:B9:02 0 ASIC1 Quantum3 infiniband-3 B8:E9:24:03:00:00:B9:03 0 ASIC2 Quantum3 infiniband-default B8:E9:24:03:00:00:B9:20 3 ASIC2 Quantum3 infiniband-1 B8:E9:24:03:00:00:B9:21 0 ASIC2 Quantum3 infiniband-2 B8:E9:24:03:00:00:B9:22 0 ASIC2 Quantum3 infiniband-3 B8:E9:24:03:00:00:B9:23 0 ASIC3 Quantum3 infiniband-default B8:E9:24:03:00:00:B9:40 6 ASIC3 Quantum3 infiniband-1 B8:E9:24:03:00:00:B9:41 0 ASIC3 Quantum3 infiniband-2 B8:E9:24:03:00:00:B9:42 0 ASIC3 Quantum3 infiniband-3 B8:E9:24:03:00:00:B9:43 0 ASIC4 Quantum3 infiniband-default B8:E9:24:03:00:00:B9:60 8 ASIC4 Quantum3 infiniband-1 B8:E9:24:03:00:00:B9:61 0 ASIC4 Quantum3 infiniband-2 B8:E9:24:03:00:00:B9:62 0 ASIC4 Quantum3 infiniband-3 B8:E9:24:03:00:00:B9:63 0 SYSTEM B8:E9:24:03:00:00:B9:00
REST API	GET https://<id>/nvue_v1/ib/device GET https://<id>/nvue_v1/ib/device/{device-id}
Related Commands	nv action change system profile ib-routing num-of-swids
Notes	By default (IB routing disabled), only the infiniband-default subnet is listed. With IB routing enabled, each ASIC displays a separate GUID and LID entry per subnet.

nv show ib device ib-subnet

	nv show ib device <device-id> ib-subnet [<subnet-name>] Shows InfiniBand devices' subnet information.
Syntax Description	device-id	Specified IB device (e.g., ASIC1, SYSTEM)
	ib-subnet	IB subnet name (e.g., infiniband-default, infiniband-1)
Default	N/A
History	25.02.8008
Example	`admin@nvos:~$ nv show ib device ASIC2 ib-subnet IB Subnet GUID LID ------------------ ----------------------- --- infiniband-1 B8:E9:24:03:00:00:B9:21 0 infiniband-2 B8:E9:24:03:00:00:B9:22 0 infiniband-3 B8:E9:24:03:00:00:B9:23 0 infiniband-default B8:E9:24:03:00:00:B9:20 3 admin@nvos:~$ nv show ib device ASIC2 ib-subnet infiniband-1 operational ---- ----------------------- guid B8:E9:24:03:00:00:B9:21 lid 0`
REST API	GET https://<id>/nvue_v1/ib/device/{device-id}/ib-subnet GET https://<id>/nvue_v1/ib/device/{device-id}/ib-subnet/{ib-subnet-id}
Related Commands	nv show ib device nv action change system profile ib-routing num-of-swids
Notes

Last updated: June 01, 2026