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Introduction

LLDP-MED (Media Endpoint Discovery) is published by the Telecommunications Industry Association (TIA). It is an extension to LLDP that operates between endpoint devices and network connectivity devices. LLDP-MED specifically provides support for voice over IP (VoIP) applications and provides the following capabilities:

  • Capabilities Discovery—allows LLDP-MED endpoints to determine the capabilities that the connected device supports and has enabled. It can be used to indicate whether the connected device is a phone, a switch, a repeater, etc.
  • Voice VLAN Configuration—provides a mechanism for a switch to notify a device which VLAN to use, which enables ―plug and play‖ networking.
  • Power Management—provides information related to how the device is powered, power priority, and how much power the device needs.
  • Inventory Management—provides a means to manage device and the attributes of the device such as model number, serial number, software revision, etc.
  • Location Identification Discovery—provides location information from the switch to the device when making an emergency call.


In addition to the TLVs advertised by LLDP, LLDP-MED also supports advertising the following TLVs:

  • LLDP-MED capabilities TLV
  • Network policy TLV
  • Power management TLV
  • Inventory management TLV
  • Location identification TLV (not supported by IP phones)


Info:

  • Feature is available in the software 2.24.12 or higher.
  • LLDP-MED is by default enabled on the Maxwell.
  • LLDP-MED configuration is done on the Switch and not in the Maxwell.
  • No reboot is needed if VLAN is changed by LLDP.
  • If no LLDP packages are received anymore, the device will switch back to the normal mode.



Web-interface

You can change the following settings in the Maxwell Web-interface:

  • Enable LLDP
  • Packet Interval

Go to: Settings - Network - LAN - LLDP



Auto provisioning
Provisioning parameterValue
NET.LLDP.Active1 = Enabled
0 = Disabled
NET.LLDP.PacketInterval1 - 3600 seconds, default 60

Example:

<param name="NET.LLDP.Active" value="1"/>

<param name="NET.LLDP.PacketInterval" value="60"/>



TLV type
TLV typeTLV name
0End of LLDPDUSupported
1Chassis IDSupported
2Port IDSupported
3Time To LiveDefault value = 240 seconds
4Port descriptionLAN PORT
5System nameMaxwell3 (Or other Maxwell name)
6System descriptionLinux 3.4.20-rt31-gc-01.016+ #1 PREEMPT Thu Aug 2 16:17:49 UTC 2018 armv5tejl
7System capabilities

.... .... .... ...0 = Other: Not capable
.... .... .... ..0. = Repeater: Not capable
.... .... .... .0.. = Bridge: Not capable
.... .... .... 0... = WLAN access point: Not capable
.... .... ...0 .... = Router: Not capable
.... .... ..1. .... = Telephone: Capable
.... .... .0.. .... = DOCSIS cable device: Not capable
.... .... 0... .... = Station only: Not capable

8Management addressIPv4 (f.e. "172.29.8.241" and IPv6 (f.e. "fe80::7e2f:80ff:fed6:c25f") are sent separately
127Extended Power-via-MDI

01.. .... = Power Type: PD Device (1)
..01 .... = Power Source: 1 PSE
.... 0010 = Power Priority: High (2)
Power Value: 8900 mW

Network Policy

Application Type: Voice (1)
1... .... .... .... .... .... = Policy: Unknown
.0.. .... .... .... .... .... = Tagged: No
...0 0000 0000 000. .... .... = VLAN Id: 0
.... .... .... ...0 00.. .... = L2 Priority: 0
.... .... .... .... ..00 0000 = DSCP Priority: 0

Inventory - Model NameMaxwell 3 PRO
Inventory - Manufacturer NameGigaset
Inventory - Serial Number<Device MAC address>
Inventory - Software Revision3.4.20-rt31-gc-01.016+
Inventory - Firmware Revision2.24.12-release default
Committee - Media Capabilities

.... .... .... ...1 = LLDP-MED Capabilities: Capable
.... .... .... ..1. = Network Policy: Capable
.... .... .... .1.. = Location Identification: Capable
.... .... .... 1... = Extended Power via MDI-PSE: Capable
.... .... ...1 .... = Extended Power via MDI-PD: Capable
.... .... ..1. .... = Inventory: Capable
Class Type: Endpoint Class III (3)

Committee - Media CapabilitiesMedia Capabilities (0x01)
MAC/PHY Configuration/Status

Auto-Negotiation Support/Status: 0x03
.... ...1 = Auto-Negotiation: Supported
.... ..1. = Auto-Negotiation: Enabled
PMD Auto-Negotiation Advertised Capability: 0x0400
.... .... .... ...0 = 1000BASE-T (full duplex mode): Not capable
.... .... .... ..0. = 1000BASE-T (half duplex mode): Not capable
.... .... .... .0.. = 1000BASE-X (-LX, -SX, -CX full duplex mode): Not capable
.... .... .... 0... = 1000BASE-X (-LX, -SX, -CX half duplex mode): Not capable
.... .... ...0 .... = Asymmetric and Symmetric PAUSE (for full-duplex links): Not capable
.... .... ..0. .... = Symmetric PAUSE (for full-duplex links): Not capable
.... .... .0.. .... = Asymmetric PAUSE (for full-duplex links): Not capable
.... .... 0... .... = PAUSE (for full-duplex links): Not capable
.... ...0 .... .... = 100BASE-T2 (full duplex mode): Not capable
.... ..0. .... .... = 100BASE-T2 (half duplex mode): Not capable
.... .1.. .... .... = 100BASE-TX (full duplex mode): Capable
.... 0... .... .... = 100BASE-TX (half duplex mode): Not capable
...0 .... .... .... = 100BASE-T4: Not capable
..0. .... .... .... = 10BASE-T (full duplex mode): Not capable
.0.. .... .... .... = 10BASE-T (half duplex mode): Not capable
0... .... .... .... = Other or unknown: Not capable
Same in inverse (wrong) bitorder
0... .... .... .... = 1000BASE-T (full duplex mode): Not capable
.0.. .... .... .... = 1000BASE-T (half duplex mode): Not capable
..0. .... .... .... = 1000BASE-X (-LX, -SX, -CX full duplex mode): Not capable
...0 .... .... .... = 1000BASE-X (-LX, -SX, -CX half duplex mode): Not capable
.... 0... .... .... = Asymmetric and Symmetric PAUSE (for full-duplex links): Not capable
.... .1.. .... .... = Symmetric PAUSE (for full-duplex links): Capable
.... ..0. .... .... = Asymmetric PAUSE (for full-duplex links): Not capable
.... ...0 .... .... = PAUSE (for full-duplex links): Not capable
.... .... 0... .... = 100BASE-T2 (full duplex mode): Not capable
.... .... .0.. .... = 100BASE-T2 (half duplex mode): Not capable
.... .... ..0. .... = 100BASE-TX (full duplex mode): Not capable
.... .... ...0 .... = 100BASE-TX (half duplex mode): Not capable
.... .... .... 0... = 100BASE-T4: Not capable
.... .... .... .0.. = 10BASE-T (full duplex mode): Not capable
.... .... .... ..0. = 10BASE-T (half duplex mode): Not capable
.... .... .... ...0 = Other or unknown: Not capable
Operational MAU Type: 100BaseTXFD - 2 pair category 5 UTP, full duplex mode (0x0010)

Link Aggregation

[Expert Info (Warning/Protocol): TLV has been deprecated]
[TLV has been deprecated]
[Severity level: Warning]
[Group: Protocol]
Aggregation Status: 0x01
.... ...1 = Aggregation Capability: Yes
.... ..0. = Aggregation Status: Disabled
Aggregated Port Id: 0

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