User Manual

Table Of Contents
Rev 4.60
Mellanox Technologies
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.pcap format. This file can be loaded by the Wireshark tool (www.wireshark.org) for graphical
traffic analysis.
This provides the ability to analyze network behavior and performance, and to debug applica-
tions that send or receive RDMA network traffic. Run "ibdump -h" to display a help message
which details the tools options.
8.3.5.1 ibdump Synopsis
8.3.5.2 ibdump Options
The table below lists the various ibdump flags of the command.
8.3.6 smpquery
Provides a basic subset of standard SMP queries to query Subnet management attributes such as
node info, node description, switch info, and port info.
8.3.6.1 smpquery Applicable Hardware
All InfiniBand devices.
- ibdump
Table 14 - ibdump Flags and Options
Flag Description
-d, --ib-dev=<dev> Use RDMA device <dev> (default first device found)
The relevant devices can be listed by running the 'ibv_devinfo' command.
-i, --ib-port=<port> Use port <port> of IB device (default 1)
-w, --write=<file> Dump file name (default "sniffer.pcap")
'-' stands for stdout - enables piping to tcpdump or tshark.
-o, --output=<file> Alias for the '-w' option. Do not use - for backward compatibility
-b, --max-burst=<log2 burst> log2 of the maximal burst size that can be captured with no packets loss.
Each entry takes ~ MTU bytes of memory (default 12 - 4096 entries)
-s, --silent Do not print progress indication.
--mem-mode <size> When specified, packets are written to file only after the capture is
stopped. It is faster than default mode (less chance for packet loss), but
takes more memory. In this mode, ibdump stops after <size> bytes are
captured
--decap Decapsulate port mirroring headers. Should be used when capturing
RSPAN traffic.
-h, --help Display this help screen.
-v, --version Print version information.