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FRR-ISISD(8)			      FRR			  FRR-ISISD(8)

NAME
       frr-isisd - an IS-IS routing engine for use with	FRRouting.

SYNOPSIS
       isisd [-h] [-v]

       isisd [-d|-t|-dt] [-C] [-f config-file] [-i pid-file] [-z zclient-path]
       [-u user] [-g group] [-A	vty-addr] [-P vty-port]	[-M  module[:options]]
       [-N pathspace] [--vty_socket vty-path] [--moduledir module-path]

DESCRIPTION
       isisd  is a routing component that works	with the FRRouting routing en-
       gine.

OPTIONS
       OPTIONS available for the isisd command:

   HELP	AND VERSION
       -h, --help
	      Print a short description	of the daemon's	command	line options.

       -v, --version
	      Print version and	build information for the daemon.

       Both of these options inhibit normal  operation	and  will  immediately
       exit.

   PROCESS CONTROL
       These options control background	operation:

       -d, --daemon
		 Launches  the	process	in background/daemon mode, forking and
		 detaching from	the terminal.

	      The parent process will delay its	exit  until  the  daemon/child
	      has  finished  its initialization	and has	entered	its main loop.
	      This is important	for zebra startup because  the	other  daemons
	      will attempt to connect to zebra.	A return from zebra -d guaran-
	      tees its readiness to accept these connections.

       -t, --terminal
	      Opens an interactive VTY session on the terminal,	 allowing  for
	      both state and configuration operations.	Note that the terminal
	      starts operating after startup has completed and the  configura-
	      tion file	has been loaded.

	      The process will exit when end of	file is	detected on the	termi-
	      nal.  It is possible to daemonize	a process started with -t (but
	      without  -d)  by sending SIGQUIT to the process (normally	mapped
	      to a ^keypress.)

       The combination of --daemon and --terminal will delay the  daemon  from
       going into background until the terminal	session	ends (by end of	file.)

       If  the	process	 receives SIGINT (e.g. a ^C keypress) in this mode, it
       will exit instead of daemonizing.

       It is safe to suspend (SIGTSTP /	^Z) the	terminal session opened	by the
       previous	 two  options;	 this  will only stop the terminal but not the
       protocol	daemon itself (which runs in a separate	second process.)

   CONFIGURATION AND PATHS
       The following options control configuration and file  system  locations
       for frr processes:

       -f, --config_file config-file
	      Specify  a  configuration	file to	be used	instead	of the default
	      /etc/frr/<daemon>.conf file.

	      Note that	the daemon will	attempt	to write to this file  if  the
	      write  file  command  is	issued on its VTY interface or through
	      vtysh.

       -C, --dryrun
	      Load the configuration file and check its	validity, then exit.

       -i, --pid_file pid-file
	      Output  a	 pid  file  to	a  location  other  than  the  default
	      /var/run/frr/<daemon>.pid.

       -z, --socket zclient-path
	      Override the path	of the ZAPI socket used	to communicate between
	      zebra  and  the  various	protocol  daemons.  The	  default   is
	      /var/run/frr/zserv.api.	The  value  of this option must	be the
	      same across all daemons.

       -N, --pathspace pathspace
	      Insert pathspace into all	default	paths, changing	 the  defaults
	      to:

	      /etc/frr/pathspace/<daemon>.conf	  /var/run/frr/pathspace/<dae-
	      mon>.pid			   /var/run/frr/pathspace/<daemon>.vty
	      /var/run/frr/pathspace/zserv.api

	      '.'  and	'/'  characters	will not be accepted in	pathspace, but
	      the empty	string will be accepted.

	      Note that	this only changes the respective defaults, it  has  no
	      effect  on the respective	path if	the -f,	-i, -z or --vty_socket
	      options are used.

	      The purpose of this option is to easily group  all  file	system
	      related bits together for	running	multiple fully-separate	"logi-
	      cal routers" on a	system,	particularly with Linux	network	 name-
	      spaces.	Groups of daemons running with distinct	pathspace val-
	      ues will be completely unaware of	each other and not interact in
	      any way.

	      This  option  does  not  do any system setup (like network name-
	      spaces.) This must be done by the	user, for example by running:

	      ip netns exec namespace <daemon> -N namespace

   PROCESS CREDENTIALS
       -u, --user user
	      (default:	frr)

       -g, --group group
	      (default:	frr)

	      Change the user/group which the daemon will switch to.

       -S, --skip_runas
	      Skip setting the process effective user and group.

       Note that there is an additional	group, frrvty,	which  controls	 group
       ownership  of the VTY sockets.  The name	of this	group cannot currently
       be changed, and user must be a member of	this group.

   VTY SETUP
       These following options control the daemon's VTY	 (interactive  command
       line) interface.	 The interface is available over TCP, using the	telnet
       protocol, as well as through the	vtysh frontend.

       -A, --vty_addr vty-addr
	      Specify an IP/IPv6 address to bind the TCP VTY interface to.  It
	      is  generally recommended	to specify ::1 or 127.0.0.1.  For rea-
	      sons of backwards	compatibility, the default is to listen	on all
	      interfaces.

       -P, --vty_port vty-port
	      Override	the  daemon's  default TCP VTY port (each daemon has a
	      different	default	value upwards of 2600, listed below.)	Speci-
	      fying 0 disables the TCP VTY interface.

	      Default ports are::

		 zebra		 2601
		 ripd		 2602
		 ripngd		 2603
		 ospfd		 2604
		 bgpd		 2605
		 ospf6d		 2606
		 isisd		 2608
		 babeld		 2609
		 nhrpd		 2610
		 pimd		 2611
		 ldpd		 2612
		 eigrpd		 2613
		 pbrd		 2615
		 staticd	 2616
		 bfdd		 2617
		 fabricd	 2618
		 vrrpd		 2619

	      Port 2607	is used	for ospfd's Opaque LSA API.

       --vty_socket vty-path
	      Overrides	 the  directory	 used  for  the	 <daemon>.vty sockets.
	      vtysh connects to	these sockets in order to access each daemon's
	      VTY.  Default: /var/run/frr[/<pathspace>]

	      NB: Unlike the other options, this option	specifies a directory,
	      not a full path.

	      This option is primarily used by the SNAP	packaging system,  its
	      semantics	 may change.  It should	not be necessary in most other
	      scenarios.

   MODULE LOADING
       frr supports optional dynamically loadable modules, although these  can
       only  be	 loaded	 at  startup.	The  set of available modules may vary
       across distributions and	packages, and modules may be available for in-
       stallation as separate packages.

       -M, --module module[:options]
	      Load a module named module, optionally passing options to	it.

	      If  there	 is a '/' character in module, the value is assumed to
	      be a pathname to a module.

	      If there is no '/' character, the	module directory (see next op-
	      tion)  is	 searched  first  for  a  module named "<daemon>_<mod-
	      ule>.so",	then for "<module>.so".	 This allows for a  module  to
	      exist in variations appropriate for particular daemons, e.g. ze-
	      bra_snmp and bgp_snmp, with the correct one selected by -M snmp.

	      The meaning of options is	specific to the	module	being  loaded.
	      Most modules currently ignore it.

	      Modules  are  loaded in the order	as listed on the command line.
	      This is not generally relevant.

       --moduledir module-path
	      Look for modules in the module-path directory instead of the de-
	      fault  /usr/lib/frr/modules.   (This path	is not affected	by the
	      -N option.)

       The list	of loaded modules can be inspected at runtime  with  the  show
       modules VTY command.

FILES
       /usr/lib/frr/isisd
	      The default location of the isisd	binary.

       /etc/frr/isisd.conf
	      The default location of the isisd	config file.

       $(PWD)/isisd.log
	      If  the  isisd  process  is configured to	output logs to a file,
	      then you will find this file in the directory where you  started
	      isisd.

WARNING
       This  man page is intended to be	a quick	reference for command line op-
       tions. The definitive document is the info file frr 7.5.1 or the	 docu-
       mentation available on the project website at https://frrouting.org/.

DIAGNOSTICS
       The  daemon  may	 log  to  standard output, to a	VTY, to	a log file, or
       through syslog to the system logs. FRR supports many debugging options,
       see the Info file, web docs or source for details.

SEE ALSO
       frr-zebra(8),   vtysh(1),   frr-ripd(8),	 frr-ripngd(8),	 frr-ospfd(8),
       frr-ospf6d(8), frr-bgpd(8), frr-isisd(8), frr-babeld(8),	 frr-nhrpd(8),
       frr-pimd(8),  frr-pbrd(8),  frr-ldpd(8),	frr-eigrpd(8), frr-staticd(8),
       frr-fabricd(8), frr-vrrpd(8), mtracebis(8) https://frrouting.org/

BUGS
       FRR eats	bugs for breakfast. If you  have  food	for  the  maintainers,
       please email <dev@lists.frrouting.org>.

COPYRIGHT
       2017, FRR

7.5.1				 Sep 11, 2021			  FRR-ISISD(8)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | FILES | WARNING | DIAGNOSTICS | SEE ALSO | BUGS | COPYRIGHT

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