Scroll to navigation

mfsnetdump(8) This is part of MooseFS mfsnetdump(8)


mfsnetdump - dump network traffic as mfs packets


mfsnetdump [-r PCAP_FILE] [-i INTERFACE] [-p PORT_RANGE] [-f PCAP_FILTER] [-c PCOUNT] [-s MBYTES] [-e COMMANDS] [-o COMMANDS] [-x] [-y] [-n]


mfsnetdump is an internal diagnostic tool similar to tcpdump, but specialized for MooseFS.


specify PCAP file to read packets from
dump packets using given network interface
show only packets from given port range (default range is 9419-9422, so by default only MFS packets are shown)
define pcap filter to filter packets
dump only PCOUNT packets and exit
dump only first MBYTES bytes of each packet
do not display given commands
show only given commands
do not display mfs maintenance commands (such as CSTOMA_SPACE or CLTOMA_FUSE_TIME_SYNC)
do not display open/close connections packets
show ANTOAN_NOP command (disabled by default)


Report bugs to <>.


Copyright (C) 2021 Jakub Kruszona-Zawadzki, Core Technology Sp. z o.o.

This file is part of MooseFS.

MooseFS is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2 (only).

MooseFS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with MooseFS; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1301, USA or visit

August 2021 MooseFS 3.0.116-1