zeppelin(8)						       Maintenance Commands						       zeppelin(8)

NAME

       zeppelin - ATM LAN Emulation client demon (LED) Zeppelin

SYNOPSIS

       zeppelin  [-b ] [-c LECS_address | -s LES_address] [-e esi] [-n VLAN_name] [-m mesg_mask] [-l listen_address | selector] [-i interface_num-
       ber] [-I physical_interface_number] [-t 1516|1580|4544|9234|18190] [-1 ] [-2 ] [-p ] [-F logfile] [-f Fore_specific_name]

DESCRIPTION

       A LAN Emulation Client is an entity in an ATM endstation that performs data forwarding, address resolution and other control functions.	It
       uses  the  LUNI interface when communicating with other components in emulated LANs. It provides upper protocol layers a MAC like interface
       similar to IEEE 802.3/Ethernet or IEEE 802.5/Token Ring LAN.

       LAN Emulation client code is divided into two parts: user space application LAN Emulation Demon called (LED) zeppelin(8),  and  the  kernel
       component.  Zeppelin is responsible for control operations needed in LAN Emulation clienthood. It forms the necessary VCCs and receives all
       the LE control frames and acts accordingly. It also controls the operation of the LEC kernel component.

       Linux LEC supports only Ethernet type of emulated LAN.

       SIGHUP causes restart of the LEC. All resources are released and zeppelin is started.

OPTIONS

       -b     Run in background (i.e. in a forked child process) after initializing kernel interface.

       -c LECS_address
	      ATM address of lecs(8) (Lan Emulation Configuration Server), if not set, Well-Known server address is used.

       -s LES_address
	      ATM address of les(8) (Lan Emulation Server), can be used in bypassing configuration phase in joining emulated Lan i.e lecs  address
	      is not used.

       -e esi Mac address to use when communicating in Emulated LAN. E.g. 00:20:22:23:04:05 .

       -n VLAN_name
	      Name  of the virtual LAN to which joining is requested.  This is used in LE_CONFIGURE_REQUEST to LECS or LE_JOIN_RESPONSE to LES, if
	      configuration phase is bypassed.

       -m mesg_mask
	      Sometimes one wants to know more what is happening in LE daemon e.g. when nothing works. This is a hexadecimal  long  value  setting
	      global message mask. 0 = No messages, ffff = All messages.

       -l listen_address | selector
	      Local ATM address that zeppelin uses as local binding point in signalling. Use this if you are running more than one client or a set
	      of LE servers. The local ATM address can be specified by either giving the full ATM address or the desired selector byte.

       -i interface_number
	      Linux LEC supports up to 40+8 network interfaces. The interface_number tells zeppelin to which of these  to  attach.  Ethernet  type
	      network  interfaces  are numbered from "lec0" to "lec39" and Token Ring interfaces are from "lec40" to "lec47". These parameters are
	      tweakable during the kernel compile, see <linux/atmlec.h>.

       -I physical_interface_number
	      The physical interface this LANE client should bind to. If your host has multiple ATM network cards, you	can  use  this	option	to
	      choose which card this zeppelin will use.

       -t MTU The MTU of ELAN to join. You need to also use ifconfig(8) to set the MTU of the LANE interface.

       -1     Run as LANEv1 client. This is the default.

       -2     Run as LANEv2 client. This is required by MPOA.

       -p     Enable  proxy.  When  started with this option, it is possible to bridge packets between ATM and Ethernet. That is, you can use LANE
	      interfaces with normal bridging. See the Bridging mini-Howto for more info.

       -F logfile
	      Instead of writing debug messages to stderr, write the messages to the file logfile. Use syslog as the file name	to  use  the  sys-
	      log(3) facility.

       -f Fore specific name
	      The LANE servers on Fore ATM switches can display a special name if a client can supply one. This name shows with command 'conf lane
	      les show advanced'.

TOKEN RING CONSIDERATIONS

       A number of lec interfaces is reserved for Token Ring ELANs when the kernel is compiled with Token Ring (CONFIG_TR) support. See  the  dis-
       cussion	about  interface_number command line option above. The Linux Token Ring LANE client does not support bridging between legacy Token
       Ring and ATM parts of the ELAN, so using the -p option is not recommended. Token Ring support has received less testing than  its  Ethernet
       counterpart.

FILES

       /var/run/lec[interface number].pid
	      The file containing the process id of zeppelin.

BUGS

       John Bonham died 1980 and Led Zeppelin broke.

       Please report any other bugs to Heikki Vatiainen <hessu@cs.tut.fi>

AUTHORS

       Marko Kiiskila, TUT <carnil@cs.tut.fi> and Heikki Vatiainen, TUT <hessu@cs.tut.fi>

SEE ALSO

       lecs(8), mpcd(8), atmsigd(8), les(8), qos(7)

Linux								   Nov 29, 1999 						       zeppelin(8)