1LADVD(8)                    System Manager's Manual                   LADVD(8)
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NAME

6       ladvd - send link layer advertisements
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SYNOPSIS

9       ladvd [ -a ] [ INTERFACE ] [ INTERFACE ] ...
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DESCRIPTION

12       ladvd  sends LLDP (Link Layer Discovery Protocol) advertisements on all
13       available interfaces. This makes connected  hosts  visible  on  managed
14       switches. By default it will run as a privilege-separated daemon. Addi‐
15       tional protocols can be enabled using the -C, -E, -F  and  -N  options.
16       Optionally  a list of interfaces which ladvd should utilize can be sup‐
17       plied. Please note that only physical or bond/bridge interfaces can  be
18       specified, vlan interfaces can only be auto-detected.
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INTERFACES

21       ladvd detects and uses all configured (UP) physical Ethernet interfaces
22       by default, wireless interfaces can be enabled via the -w option. Addi‐
23       tionally ladvd will recognize bundled interfaces (bridges, bonding) and
24       use these to transmit additional information. The result is  that  nor‐
25       mally  it  should  not  be necessary to specify interfaces on the ladvd
26       command-line. The only reason for specifying interfaces is  to  explic‐
27       itly exclude a particular interface.
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OPTIONS

30       -a     Auto-enable  protocols  based  on received packets (also enables
31              receive mode).
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33       -d     Dump pcap-compatible packets to stdout which  can  be  piped  to
34              tcpdump  (via "| tcpdump -r -") or redirected to a file for fur‐
35              ther analysis.
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37       -e interface
38              Exclude a particular interface, no packets will  be  transmitted
39              on this interface.
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41       -f     Run in the foreground and send logging to stderr.
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43       -h     Print usage instructions.
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45       -m interface
46              The management interface for this host. Addresses on this inter‐
47              face are auto-detected (IPv4 and IPv6).
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49       -n     Use addresses of the management interface specified via  -m  for
50              all interfaces.
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52       -o     Run only once, useful for quick troubleshooting.
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54       -r     Receive packets, and use them for various features.
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56       -s     Be silent, don't transmit any packets.
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58       -q     Use each interface's hwaddr the generate the chassis-id TLV. Not
59              recommended because the chassis-id should be the  same  for  all
60              interfaces.
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62       -t     Use Tun/Tap interfaces.
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64       -u user
65              Switch to this user (defaults to ladvd)
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67       -v     Increase logging verbosity.
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69       -w     Use wireless interfaces.
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71       -y     Save  received  peer  hostname and port description in interface
72              descriptions (requires SIOCSIFDESCR support) or Linux ifAliases.
73              This also enables receive mode.
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75       -z     Save  received peer hostname and port name in interface descrip‐
76              tions (requires SIOCSIFDESCR support) or Linux  ifAliases.  This
77              also enables receive mode.
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79       -c <CC>
80              Specify  a  two-letter  ISO 3166 country code (required for LLDP
81              location support).
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83       -l <location>
84              Specify the physical location of the host.
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86       -L     Enable LLDP (Link Layer Discovery Protocol).
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88       -C     Enable CDP (Cisco Discovery Protocol).
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90       -E     Enable EDP (Extreme Discovery Protocol).
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92       -F     Enable FDP (Foundry Discovery Protocol).
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94       -N     Enable NDP (Nortel Discovery Protocol) formerly called SynOptics
95              Network Management Protocol (SONMP).
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AUTHOR

98       Sten Spans <sten@blinkenlights.nl>
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102ladvd                            July 19, 2009                        LADVD(8)
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