Link Layer Discovery Protocol (LLDP) for Avaya Telephones

Link Layer Discovery Protocol (LLDP)

Link Layer Discovery Protocol (LLDP) is an open standards layer 2 protocol IP Telephones use to advertise their identity and capabilities and to receive administration from an LLDP server. LAN equipment can use LLDP to manage power, administer VLANs, and provide some administration.

The transmission and reception of LLDP is specified in IEEE 802.1AB-2005. The 9600 Series IP Telephones use Type-Length-Value (TLV) elements specified in IEEE 802.1AB-2005, TIA TR-41 Committee - Media Endpoint Discovery (LLDP-MED, ANSI/TIA-1057), and Proprietary elements. LLDP Data Units (LLDPDUs) are sent to the LLDP Multicast MAC address (01:80:c2:00:00:0e).

9600 Series IP Telephones running SIP Release 2.0 software support IEEE 802.1AB if the value of the configuration parameter LLDP_ENABLED is "1" (On) or "2" (Auto). If the value of LLDP_ENABLED is “0” (off), the transmission and reception of Link Layer Discovery Protocol (LLDP) is not supported. When the value of LLDP_ENABLED is “2”, the transmission of LLDP frames will not begin until or unless an LLDP frame is received, and the first LLDP frame will be transmitted within 2 seconds after the first LLDP frame is received. Once transmission begins, an LLDPDU will be transmitted every 30 seconds.

Note:

There could be a delay of up to 30 seconds in telephone initialization if the file server address is delivered by LLDP and not by DHCP.

These telephones:

●do not support LLDP on the secondary Ethernet interface.

●will not forward frames received with the 802.1AB LLDP group multicast address as the destination MAC address between the Ethernet line interface and the secondary Ethernet interface.

A 9600 Series IP Telephone initiates LLDP after receiving an LLDPDU message from an appropriate system. Once initiated, the telephones send an LLDPDU every 30 seconds with the following contents:

Table 13: LLDPDU Transmitted by 9600 Series SIP IP Telephones

Category	TLV Name (Type)	TLV Info String (Value)

Basic Mandatory	Chassis ID	IPADD of telephone, IANA Address Family
		Numbers enumeration value for IPv4, or
		subtype 5:Network address.
		MAC address of the telephone.
Basic Mandatory	Port ID	MAC address of the telephone.
		120 seconds.
Basic Mandatory	Time-To-Live	120 seconds.

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Issue 2 December 2007 101

9600 specifications

The Avaya 9600 series is a robust line of desktop phones designed to meet the needs of modern business communication. Tailored for users who require advanced functionalities, the 9600 series offers a rich set of features that enhance productivity and collaboration in the workplace.

One of the standout features of the Avaya 9600 series is its high-resolution graphical display. The intuitive interface with customizable menu options makes it easy for users to navigate through various functions and settings. The color screen enhances visibility and allows for clearer visual communication, essential for today’s fast-paced business environments.

In terms of audio quality, the Avaya 9600 series excels with high-definition voice technology. Users can benefit from crystal-clear audio, which minimizes misunderstandings during calls and enhances remote collaboration. The phones are equipped with full-duplex speakerphone functionality, ensuring that all parties can be heard clearly during conference calls.

Another significant characteristic of the Avaya 9600 series is its support for a wide range of communication protocols, including Voice over IP (VoIP) and SIP (Session Initiation Protocol). This versatility enables seamless integration with various communication systems, making the 9600 series suitable for companies of all sizes. The phones can connect to both cloud-based and on-premise solutions, allowing businesses to choose the best communication strategy for their needs.

User personalization is a key aspect of the 9600 series. The phones come with programmable function keys that allow users to customize their setup according to individual preferences and frequently used features. Additionally, the series supports Bluetooth and USB connectivity, enabling users to connect a variety of headsets and accessories for enhanced audio options.

Security is paramount in business communications, and the Avaya 9600 series addresses this with advanced security features. The phones support encryption protocols to protect sensitive information during calls, ensuring that businesses can communicate confidentially without the risk of eavesdropping.

Lastly, the Avaya 9600 series is designed for scalability. As organizations grow, the phones can easily be integrated into existing systems or expanded to accommodate additional users without requiring significant changes to the infrastructure.

In summary, the Avaya 9600 series is a powerful communication tool that combines advanced features, superior audio quality, and robust security to empower businesses. Its adaptability and user-friendly design make it a preferred choice for organizations aiming to enhance their communication efficiency and productivity.