ibdiagnet InfiniBand Fabric Diagnostic Tool User Manual v2.8.0

InfiniBand Security

When MKEY protection is enabled by the Subnet Manager on the fabric devices, following command options should be used in ibdiagnet:

Parameter

Description

--m_key <m_key>

Specifies constant MKey for the fabric. The MKey value should be specified when a single MKEY is shared by all InfiniBand devices.

The mkey value can be obtained from the opensm.conf file (m_key parameter).

--m_key_files <path to key files directory>

Specifies the path to the directory with the key_files (guid2lid, guid2mkey, neighbors, guid2cckey, guid2vskey).

Key files usually provided by opensm in /var/cache/opensm/.

Example of guid2mkey/guid2cckey/guid2vskey file:

Copy
Copied!
            

0x0002c9000000001e 0x0000000000000111 0x0002c9000000002a 0x0000000000000222 0x0002c90000000026 0x0000000000000333 0x0002c90000000006 0x0000000000000444

Example of guid2lid file:

Copy
Copied!
            

0x0002c9000000004b 0x0027 0x0027 0x0002c9000000002a 0x001a 0x001b 0x0002c90000000006 0x0004 0x0005 0x0002c90000000047 0x000e 0x000e

Example of neighbours file:

Copy
Copied!
            

0x0002c9000000004d:4 0x0002c9000000000e:1 0x0002c9000000004b:1 0x0002c9000000002e:1 0x0002c90000000049:2 0x0002c90000000022:1 0x0002c90000000006:1 0x0002c9000000004d:2

Example:

Copy
Copied!
            

ibdiagnet --mkey 0x00ff ibdiagnet --m_key_files /var/cache/opensm/ ibdiagnet --m_key_files /tmp/opensm_mkey_files/

Aggregation Management Key (AM key) is sent in SHARP Management MADs to the Aggregation nodes. (default 0). Aggregation management key is configured in SHARP Aggregation Manager configuration file.

Parameter

Description

--am_key <am_key>

Specifies constant am_key.
AM Key parameter value format: 0x<hex_value>

--am_key_file <path_to_am_key_file>

Specifies the path to am_key_file: guid2am_key.
The guid2am_key file includes pair of values GUID and key in the following format:
0x<guid_hex_value> 0x<am_key_hex_value>

Example of guid2amkey file:

Copy
Copied!
            

0x0000000000000111 0x0000000000000001 0x0000000000000222 0x2 0x0000000000000333 0x0000000003 0x0000000000000444 0x0000000000000004

Example:

Copy
Copied!
            

ibdiagnet --am_key 0x0000000000000123 ibdiagnet --am_key 0x123 ibdiagnet --am_key_file /tmp/guid2am_key ibdiagnet --am_key_file /tmp/am_keys

© Copyright 2023, NVIDIA. Last updated on May 23, 2023.