NAME¶

lldpctl — control LLDP daemon

SYNOPSIS¶

lldpctl

[-d] [-L location] [-P policy] [-O poe] [-o poe] [interface ...]

DESCRIPTION¶

The lldpctl program controls lldpd(8) daemon. When no specific option is given, lldpctl displays the list of discovered neighbors along with some of their advertised capabilities. If some interfaces are given, only those interfaces will be displayed. The options are as follows:

-d

Enable more debugging information.

-f format

Choose the output format. Currently plain, xml and keyvalue formats are available. The default is plain.

-L location

Enable the transmission of LLDP-MED location TLV for the given interfaces. This option can be repeated several times to enable the transmission of the location in several formats. Several formats are accepted:

Coordinate based location

The format of location is 1:48.85667:N:2.2014:E:117.47:m:1 The first digit is always 1. It is followed by the latitude, a letter for the direction ( E or W for East or West), the longitude and a letter for the direction ( N or S ). The next figure is the altitude. It can be expressed in meters (the next letter is then m ) or in floors (the letter should be f ). The last digit is the datum. It can either be 1 (WGS84), 2 (NAD83) or 3 (NAD83/MLLW).

Civic address

The location can be expressed as an address. The format of the location is then 2:FR:6:Commercial Rd:3:Roseville:19:4 The first digit is always 2. The next two letters are the country code. Then, arguments are paired to form the address. The first member of the pair is a digit indicating the type of the second member. Here is the list of valid types:

0

Language

1

National subdivisions

2

County, parish, district

3

City, township

4

City division, borough, ward

5

Neighborhood, block

6

Street

16

Leading street direction

17

Trailing street suffix

18

Street suffix

19

House number

20

House number suffix

21

Landmark or vanity address

22

Additional location info

23

Name

24

Postal/ZIP code

25

Building

26

Unit

27

Floor

28

Room number

29

Place type

128

Script

ECS ELIN

This is a numerical string using for setting up emergency call. The format of the location is then the following: 3:0000000911 where the first digit should be 3 and the second argument is the ELIN number.

When setting a location for a given port, all previous locations are erased. To erase all location, just use the empty string. There is currently no way to get the location from the command line.

-P policy

Enable the transmission of LLDP-MED Network Policy TLVs for the given interfaces. This option can be repeated several times to specify different policies. Format (without spaces!):

App-Type : U : T : VLAN-ID : L2-Prio : DSCP

App-Type

Valid application types (see ANSI/TIA-1057 table 12):

1

Voice

2

Voice Signaling

3

Guest Voice

4

Guest Voice Signaling

5

Softphone Voice

6

Video Conferencing

7

Streaming Video

8

Video Signaling

U

Unknown Policy Flag.

0

Network policy for the specified application type is defined.

1

Network policy for the specified application type is required by the device but is currently unknown. This is used by Endpoint Devices, not by Network Connectivity Devices.

T

Tagged Flag.

0

Untagged VLAN. In this case the VLAN ID and the Layer 2 Priority are ignored and only the DSCP value has relevance.

1

Tagged VLAN.

VLAN-ID

IEEE 802.1q VLAN ID (VID). A value of 1 through 4094 defines a VLAN ID. A value of 0 means that only the priority level is significant.

L2-Prio

IEEE 802.1d / IEEE 802.1p Layer 2 Priority, also known as Class of Service (CoS), to be used for the specified application type.

1

Background

2

Spare

0

Best Effort (default)

3

Excellent Effort

4

Controlled Load

5

Video

6

Voice

7

Network Control

DSCP

DiffServ/Differentiated Services Code Point (DSCP) value as defined in IETF RFC 2474 for the specified application type. Value: 0 (default per RFC 2475) through 63. Note: The class selector DSCP values are backwards compatible for devices that only support the old IP precedence Type of Service (ToS) format. (See the RFCs for what these values mean.)

Examples:

1:0:1:500:6:46

Voice (1): not unknown (0), tagged (1), VLAN-ID 500, l2 prio Voice (6), DSCP 46 (EF, Expedited Forwarding)

2:0:1:500:3:24

Voice Signaling (2): not unknown (0), tagged (1), VLAN-ID 500, l2 prio Excellent Effort (3), DSCP 24 (CS3, Class Selector 3)

-O poe

Enable the transmission of LLDP-MED POE-MDI TLV for the given interfaces. One can act as a PD (power consumer) or a PSE (power provider). No check is done on the validity of the parameters while LLDP-MED requires some restrictions:

• PD shall never request more power than physical 802.3af class.
• PD shall never draw more than the maximum power advertised by PSE.
• PSE shall not reduce power allocated to PD when this power is in use.
• PSE may request reduced power using conservation mode
• Being PSE or PD is a global paremeter, not a per-port parameter. lldpctl does not enforce this: a port can be set as PD or PSE. LLDP-MED also requires for a PSE to only have one power source (primary or backup). Again, lldpctl does not enforce this. Each port can have its own power source. The same applies for PD and power priority. LLDP-MED MIB does not allow this kind of representation.

This option is distinct of -o option. You may want to use both options at the same time.

The format of this option is (without spaces):

type : source : priority : value

type

Valid types are:

PSE

Power Sourcing Entity (power provider)

PD

Power Device (power consumer)

source

Valid sources are:

0

Unknown

1

For PD, the power source is the PSE. For PSE, the power source is the primary power source.

2

For PD, the power source is a local source. For PSE, the power source is the backup power source or a power conservation mode is asked (the PSE may be running on UPS for example).

3

For PD, the power source is both the PSE and a local source. For PSE, this value should not be used.

priority

Four priorities are available:

0

Unknown priority

1

Critical

2

High

3

Low

value

For PD, the power value is the total power in tenth of watts required by a PD device from the PSE device. This value should range from 0 to 1023 tenth of watts.

-o poe

Enable the transmission of Dot3 POE-MDI TLV for the given interfaces. One can act as a PD (power consumer) or a PSE (power provider). This option is distinct of the -O option. You might want to use both. Contrary to LLDP-MED POE-MDI TLV, Dot3 POE-MDI TLV are strictly per-port values.

The format of this option is (without spaces):

type : supported : enabled : paircontrol : powerpairs : class [ : powertype : source : priority : requested : allocated ]

type

Valid types are:

PSE

Power Sourcing Entity (power provider)

PD

Power Device (power consumer)

powerpairs

Valid sources are:

1

The signal pairs only are in use.

2

The spare pairs only are in use.

class

Five classes are available:

1

class 0

2

class 1

3

class 2

4

class 3

5

class 4

0

no class

supported, enabled and paircontrol can be set to to 0 or 1. supported means that MDI power is supported on the given port. enabled means that MDI power is enabled on the given port. paircontrol is used to indicate if the pair selection can be controlled on the given port.

powertype, source, priority (and remaining values) are optional. They are only requested in conformance with 802.3at. type should be either 1 or 2. For the possible values of the next two fields, see the possible values of source and priority for LLDP-MED MDI/POE. requested and allocated are respectively the PD requested power value and the PSE allocated power value. This should be expressed in tenth of watts from 1 to 255.

FILES¶

/var/run/lldpd.socket

Unix-domain socket used for communication with lldpd(8).

SEE ALSO¶

lldpd(8)

AUTHORS¶

The lldpctl program was written by Vincent Bernat ⟨bernat@luffy.cx⟩.