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.TH IBNETDISCOVER 8 "January 3, 2008" "OpenIB" "OpenIB Diagnostics"
.SH NAME
ibnetdiscover \- discover InfiniBand topology
.SH SYNOPSIS
.B ibnetdiscover
[\-d(ebug)] [\-e(rr_show)] [\-v(erbose)] [\-s(how)] [\-l(ist)] [\-g(rouping)] [\-H(ca_list)] [\-S(witch_list)] [\-R(outer_list)] [\-C ca_name] [\-P ca_port] [\-t(imeout) timeout_ms] [\-V(ersion)] [\--node-name-map <node-name-map>] [\-p(orts)] [\-h(elp)] [<topology-file>]
.SH DESCRIPTION
.PP
ibnetdiscover performs IB subnet discovery and outputs a human readable
topology file. GUIDs, node types, and port numbers are displayed
as well as port LIDs and NodeDescriptions. All nodes (and links) are displayed
(full topology). Optionally, this utility can be used to list the current
connected nodes by nodetype. The output is printed to standard output
unless a topology file is specified.
.SH OPTIONS
.PP
.TP
\fB\-l\fR, \fB\-\-list\fR
List of connected nodes
.TP
\fB\-g\fR, \fB\-\-grouping\fR
Show grouping. Grouping correlates IB nodes by different vendor specific
schemes. It may also show the switch external ports correspondence.
.TP
\fB\-H\fR, \fB\-\-Hca_list\fR
List of connected CAs
.TP
\fB\-S\fR, \fB\-\-Switch_list\fR
List of connected switches
.TP
\fB\-R\fR, \fB\-\-Router_list\fR
List of connected routers
.TP
\fB\-s\fR, \fB\-\-show\fR
Show more information
.TP
\fB\-\-node\-name\-map\fR <node-name-map>
Specify a node name map. The node name map file maps GUIDs to more user friendly
names. See file format below.
.TP
\fB\-p\fR, \fB\-\-ports\fR
Obtain a ports report which is a
list of connected ports with relevant information (like LID, portnum,
GUID, width, speed, and NodeDescription).
.SH COMMON OPTIONS
Most OpenIB diagnostics take the following common flags. The exact list of
supported flags per utility can be found in the usage message and can be shown
using the util_name -h syntax.
# Debugging flags
.PP
\-d raise the IB debugging level.
May be used several times (-ddd or -d -d -d).
.PP
\-e show send and receive errors (timeouts and others)
.PP
\-h show the usage message
.PP
\-v increase the application verbosity level.
May be used several times (-vv or -v -v -v)
.PP
\-V show the version info.
# Other common flags:
.PP
\-C <ca_name> use the specified ca_name.
.PP
\-P <ca_port> use the specified ca_port.
.PP
\-t <timeout_ms> override the default timeout for the solicited mads.
Multiple CA/Multiple Port Support
When no IB device or port is specified, the port to use is selected
by the following criteria:
.PP
1. the first port that is ACTIVE.
.PP
2. if not found, the first port that is UP (physical link up).
If a port and/or CA name is specified, the user request is
attempted to be fulfilled, and will fail if it is not possible.
.SH TOPOLOGY FILE FORMAT
The topology file format is human readable and largely intuitive.
Most identifiers are given textual names like vendor ID (vendid), device ID
(device ID), GUIDs of various types (sysimgguid, caguid, switchguid, etc.).
PortGUIDs are shown in parentheses (). For switches, this is shown on the
switchguid line. For CA and router ports, it is shown on the connectivity lines. The IB node is identified followed by the number of ports and a quoted
the node GUID. On the right of this line is a comment (#) followed by the
NodeDescription in quotes. If the node is a switch, this line also contains
whether switch port 0 is base or enhanced, and the LID and LMC of port 0.
Subsequent lines pertaining to this node show the connectivity. On the
left is the port number of the current node. On the right is the peer node
(node at other end of link). It is identified in quotes with nodetype
followed by - followed by NodeGUID with the port number in square brackets.
Further on the right is a comment (#). What follows the comment is
dependent on the node type. If it it a switch node, it is followed by
the NodeDescription in quotes and the LID of the peer node. If it is a
CA or router node, it is followed by the local LID and LMC and then
followed by the NodeDescription in quotes and the LID of the peer node.
The active link width and speed are then appended to the end of this
output line.
An example of this is:
.nf
#
# Topology file: generated on Tue Jun 5 14:15:10 2007
#
# Max of 3 hops discovered
# Initiated from node 0008f10403960558 port 0008f10403960559
Non-Chassis Nodes
vendid=0x8f1
devid=0x5a06
sysimgguid=0x5442ba00003000
switchguid=0x5442ba00003080(5442ba00003080)
Switch 24 "S-005442ba00003080" # "ISR9024 Voltaire" base port 0 lid 6 lmc 0
[22] "H-0008f10403961354"[1](8f10403961355) # "MT23108 InfiniHost Mellanox Technologies" lid 4 4xSDR
[10] "S-0008f10400410015"[1] # "SW-6IB4 Voltaire" lid 3 4xSDR
[8] "H-0008f10403960558"[2](8f1040396055a) # "MT23108 InfiniHost Mellanox Technologies" lid 14 4xSDR
[6] "S-0008f10400410015"[3] # "SW-6IB4 Voltaire" lid 3 4xSDR
[12] "H-0008f10403960558"[1](8f10403960559) # "MT23108 InfiniHost Mellanox Technologies" lid 10 4xSDR
vendid=0x8f1
devid=0x5a05
switchguid=0x8f10400410015(8f10400410015)
Switch 8 "S-0008f10400410015" # "SW-6IB4 Voltaire" base port 0 lid 3 lmc 0
[6] "H-0008f10403960984"[1](8f10403960985) # "MT23108 InfiniHost Mellanox Technologies" lid 16 4xSDR
[4] "H-005442b100004900"[1](5442b100004901) # "MT23108 InfiniHost Mellanox Technologies" lid 12 4xSDR
[1] "S-005442ba00003080"[10] # "ISR9024 Voltaire" lid 6 1xSDR
[3] "S-005442ba00003080"[6] # "ISR9024 Voltaire" lid 6 4xSDR
vendid=0x2c9
devid=0x5a44
caguid=0x8f10403960984
Ca 2 "H-0008f10403960984" # "MT23108 InfiniHost Mellanox Technologies"
[1](8f10403960985) "S-0008f10400410015"[6] # lid 16 lmc 1 "SW-6IB4 Voltaire" lid 3 4xSDR
vendid=0x2c9
devid=0x5a44
caguid=0x5442b100004900
Ca 2 "H-005442b100004900" # "MT23108 InfiniHost Mellanox Technologies"
[1](5442b100004901) "S-0008f10400410015"[4] # lid 12 lmc 1 "SW-6IB4 Voltaire" lid 3 4xSDR
vendid=0x2c9
devid=0x5a44
caguid=0x8f10403961354
Ca 2 "H-0008f10403961354" # "MT23108 InfiniHost Mellanox Technologies"
[1](8f10403961355) "S-005442ba00003080"[22] # lid 4 lmc 1 "ISR9024 Voltaire" lid 6 4xSDR
vendid=0x2c9
devid=0x5a44
caguid=0x8f10403960558
Ca 2 "H-0008f10403960558" # "MT23108 InfiniHost Mellanox Technologies"
[2](8f1040396055a) "S-005442ba00003080"[8] # lid 14 lmc 1 "ISR9024 Voltaire" lid 6 4xSDR
[1](8f10403960559) "S-005442ba00003080"[12] # lid 10 lmc 1 "ISR9024 Voltaire" lid 6 1xSDR
.fi
When grouping is used, IB nodes are organized into chasses which are
numbered. Nodes which cannot be determined to be in a chassis are
displayed as "Non-Chassis Nodes". External ports are also shown on the
connectivity lines.
.SH 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.
.TP
\fBGenerically:\fR
# comment
.br
<guid> "<name>"
.TP
\fBExample:\fR
# IB1
.br
# Line cards
.br
0x0008f104003f125c "IB1 (Rack 11 slot 1 ) ISR9288/ISR9096 Voltaire sLB-24D"
.br
0x0008f104003f125d "IB1 (Rack 11 slot 1 ) ISR9288/ISR9096 Voltaire sLB-24D"
.br
0x0008f104003f10d2 "IB1 (Rack 11 slot 2 ) ISR9288/ISR9096 Voltaire sLB-24D"
.br
0x0008f104003f10d3 "IB1 (Rack 11 slot 2 ) ISR9288/ISR9096 Voltaire sLB-24D"
.br
0x0008f104003f10bf "IB1 (Rack 11 slot 12 ) ISR9288/ISR9096 Voltaire sLB-24D"
.br
.br
# Spines
.br
0x0008f10400400e2d "IB1 (Rack 11 spine 1 ) ISR9288 Voltaire sFB-12D"
.br
0x0008f10400400e2e "IB1 (Rack 11 spine 1 ) ISR9288 Voltaire sFB-12D"
.br
0x0008f10400400e2f "IB1 (Rack 11 spine 1 ) ISR9288 Voltaire sFB-12D"
.br
0x0008f10400400e31 "IB1 (Rack 11 spine 2 ) ISR9288 Voltaire sFB-12D"
.br
0x0008f10400400e32 "IB1 (Rack 11 spine 2 ) ISR9288 Voltaire sFB-12D"
.br
.br
# GUID Node Name
.br
0x0008f10400411a08 "SW1 (Rack 3) ISR9024 Voltaire 9024D"
.br
0x0008f10400411a28 "SW2 (Rack 3) ISR9024 Voltaire 9024D"
.br
0x0008f10400411a34 "SW3 (Rack 3) ISR9024 Voltaire 9024D"
.br
0x0008f104004119d0 "SW4 (Rack 3) ISR9024 Voltaire 9024D"
.br
.SH AUTHORS
.TP
Hal Rosenstock
.RI < halr@voltaire.com >
.TP
Ira Weiny
.RI < weiny2@llnl.gov >