zeppelin - ATM LAN Emulation client demon (LED) Zeppelin
zeppelin [-b ] [-c LECS_address | -s LES_address] [-e esi]
[-n VLAN_name] [-m mesg_mask] [-l listen_address | selector]
[-i interface_number] [-I physical_interface_number]
[-t 1516|1580|4544|9234|18190] [-1 ] [-2 ] [-p ] [-F logfile]
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.
-b Run in background (i.e. in a forked child process) after
initializing kernel interface.
ATM address of lecs(8) (Lan Emulation Configuration Server), if
not set, Well-Known server address is used.
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.
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.
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
-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.
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
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.
Instead of writing debug messages to stderr, write the messages
to the file logfile. Use syslog as the file name to use the
-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
discussion 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
The file containing the process id of zeppelin.
John Bonham died 1980 and Led Zeppelin broke.
Please report any other bugs to Heikki Vatiainen <firstname.lastname@example.org>
Marko Kiiskila, TUT <email@example.com> and Heikki Vatiainen, TUT
lecs(8), mpcd(8), atmsigd(8), les(8), qos(7)