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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | FILES | EXAMPLES | SEE ALSO | AUTHOR | COLOPHON |
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IBTRACERT(8) Open IB Diagnostics IBTRACERT(8)
ibtracert - trace InfiniBand path
ibtracert [options] [<lid|guid> [<startlid> [<endlid>]]]
ibtracert uses SMPs to trace the path from a source GID/LID to a
destination GID/LID. Each hop along the path is displayed until
the destination is reached or a hop does not respond. By using the
-m option, multicast path tracing can be performed between source
and destination nodes.
-n, --no_info
simple format; don't show additional information
-m show the multicast trace of the specified mlid
-f, --force
force route to destination port
Addressing Flags
-G, --Guid The address specified is a Port GUID
-L, --Lid The address specified is a LID
-s, --sm_port <smlid> use 'smlid' as the target lid for SA
queries.
--ports-file <ports-file> Specify a ports file.
This file contains multiple source and destination lid or guid
pairs. See FILES section.
Port Selection flags
-C, --Ca <ca_name> use the specified ca_name.
-P, --Port <ca_port> use the specified ca_port.
Local port Selection
Multiple port/Multiple CA support: when no IB device or port is
specified (see the "local umad parameters" below), the libibumad
library selects the port to use by the following criteria:
1. the first port that is ACTIVE.
2. if not found, the first port that is UP (physical link up).
If a port and/or CA name is specified, the libibumad library
attempts to fulfill the user request, and will fail if it is
not possible.
For example:
ibaddr # use the first port (criteria #1 above)
ibaddr -C mthca1 # pick the best port from "mthca1" only.
ibaddr -P 2 # use the second (active/up) port from the first available IB device.
ibaddr -C mthca0 -P 2 # use the specified port only.
Debugging flags
-d raise the IB debugging level. May be used several times
(-ddd or -d -d -d).
-e show send and receive errors (timeouts and others)
-h, --help show the usage message
-v, --verbose
increase the application verbosity level. May be used
several times (-vv or -v -v -v)
-V, --version show the version info.
Configuration flags
-t, --timeout <timeout_ms> override the default timeout for the
solicited mads.
--node-name-map <node-name-map> Specify a node name map.
This file maps GUIDs to more user friendly names. See FILES
section.
-y, --m_key <key>
use the specified M_key for requests. If non-numeric value
(like 'x') is specified then a value will be prompted for.
--config, -z <config_file> Specify alternate config file.
Default:
/ssd11/FOSS/rdma-core/build/etc/infiniband-diags/ibdiag.conf
CONFIG FILE
/ssd11/FOSS/rdma-core/build/etc/infiniband-diags/ibdiag.conf
A global config file is provided to set some of the common options
for all tools. See supplied config file for details.
NODE NAME MAP FILE FORMAT
The node name map is used to specify user friendly names for nodes
in the output. GUIDs are used to perform the lookup.
This functionality is provided by the opensm-libs package. See
opensm(8) for the file location for your installation.
Generically:
# comment
<guid> "<name>"
Example:
# IB1
# Line cards
0x0008f104003f125c "IB1 (Rack 11 slot 1 ) ISR9288/ISR9096 Voltaire sLB-24D"
0x0008f104003f125d "IB1 (Rack 11 slot 1 ) ISR9288/ISR9096 Voltaire sLB-24D"
0x0008f104003f10d2 "IB1 (Rack 11 slot 2 ) ISR9288/ISR9096 Voltaire sLB-24D"
0x0008f104003f10d3 "IB1 (Rack 11 slot 2 ) ISR9288/ISR9096 Voltaire sLB-24D"
0x0008f104003f10bf "IB1 (Rack 11 slot 12 ) ISR9288/ISR9096 Voltaire sLB-24D"
# Spines
0x0008f10400400e2d "IB1 (Rack 11 spine 1 ) ISR9288 Voltaire sFB-12D"
0x0008f10400400e2e "IB1 (Rack 11 spine 1 ) ISR9288 Voltaire sFB-12D"
0x0008f10400400e2f "IB1 (Rack 11 spine 1 ) ISR9288 Voltaire sFB-12D"
0x0008f10400400e31 "IB1 (Rack 11 spine 2 ) ISR9288 Voltaire sFB-12D"
0x0008f10400400e32 "IB1 (Rack 11 spine 2 ) ISR9288 Voltaire sFB-12D"
# GUID Node Name
0x0008f10400411a08 "SW1 (Rack 3) ISR9024 Voltaire 9024D"
0x0008f10400411a28 "SW2 (Rack 3) ISR9024 Voltaire 9024D"
0x0008f10400411a34 "SW3 (Rack 3) ISR9024 Voltaire 9024D"
0x0008f104004119d0 "SW4 (Rack 3) ISR9024 Voltaire 9024D"
PORTS FILE FORMAT
The ports file can be used to specify multiple source and
destination pairs. They can be lids or guids. If guids, use the
-G option to indicate that.
Generically:
# comment
<src> <dst>
Example:
73 207
203 657
531 101
> OR <
0x0008f104003f125c 0x0008f104003f133d
0x0008f1040011ab07 0x0008f104004265c0
0x0008f104007c5510 0x0008f1040099bb08
Unicast examples
ibtracert 4 16 # show path between lids 4 and 16
ibtracert -n 4 16 # same, but using simple output format
ibtracert -G 0x8f1040396522d 0x002c9000100d051 # use guid addresses
Multicast example
ibtracert -m 0xc000 4 16 # show multicast path of mlid 0xc000 between lids 4 and 16
ibroute(8)
Hal Rosenstock
< <hal.rosenstock@gmail.com> >
Ira Weiny
< <ira.weiny@intel.com> >
This page is part of the rdma-core (RDMA Core Userspace Libraries
and Daemons) project. Information about the project can be found
at ⟨https://github.com/linux-rdma/rdma-core⟩. If you have a bug
report for this manual page, send it to
linux-rdma@vger.kernel.org. This page was obtained from the
project's upstream Git repository
⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2025-08-11. (At
that time, the date of the most recent commit that was found in
the repository was 2025-08-04.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
2018-04-02 IBTRACERT(8)
Pages that refer to this page: ibroute(8)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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