LLDP and LLDP-MED Configuration Examples
323
LLDP, LLDP-MED OVERVIEW
LLDP (Link Layer Discovery Protocol – IEEE 802.1AB) provides a standards-based Layer 2
protocol for enabling network switches to advertise themselves and learn about adjacent
connected LLDP devices. LLDP-MED (LLDP Media specific – ANSI/TIA-1057) is an extension
to LLDP to provide auto-configuration and exchange of media related information, such as
Voice VLAN and QoS, and is designed to provide enhanced VoIP deployment and management.
Typically phones will need information such as QoS settings and also location information.
Since these network settings are specific to a location, or connection point, then having the
IP-Phone auto discover this information from the local Ethernet switch reduces setup within
other areas of the network, e.g. DHCP, and eases Moves, Adds and Changes of devices.
The following example describes how to set up LLDP/LLDP-MED for an access port on a
ProCurve Networking 5300xl Ethernet switch. Commands may differ depending upon
manufacturer and model. (LLDP instructions for the ProCurve 2600, 3500, 5300 and 5400
model switches are the same.) Instructions in the sections below only contain a subset of CLI
commands available. Please read the device documentation to determine the correct instruction
set to use.
CONFIGURATION OVERVIEW
A number of parameters within the Layer 2 access switch need to be configured in order to
advertise the correct LLDP/LLDP-MED information to the end devices.
LLDP-MED includes information regarding the voice VLAN ID, DSCP and Priority and supports
both tagged and untagged voice devices. However, since Untagged voice devices do not include
the VLAN header or L2 Priority information, the Switch Access Port parameters will need to
reflect this and apply policy changes at the ingress port. This is described further in “Connecting
non-VLAN enabled voice devices to the network” on page 329.
By default, LLDP and LLDP-MED are enabled, and default Priority and DSCP values are already
defined for voice services. All that is required is to identify the voice VLAN with "voice" service
and assign the voice VLAN to the required ports.
LLDP-MED ADVERTISING INFORMATION DETERMINATION
LLDP-MED has the capability to provide the following information to the voice devices
connected to the network switch:
•
VLAN ID
•
Priority
•
DSCP
The information advertised by LLDP-MED is obtained from various switch settings. These
settings need to be configured in order to get the correct information on the relevant port. Note
Note:
For additional clarity, the user input is shown in bold font within this appendix.
Summary of Contents for MiVOICE BUSINESS
Page 1: ...Mitel MiVoice Business RELEASE 7 2 ENGINEERING GUIDELINES ...
Page 15: ...Chapter 1 ABOUT THIS DOCUMENT ...
Page 16: ......
Page 22: ...Engineering Guidelines 8 ...
Page 23: ...Chapter 2 SYSTEM OVERVIEW ...
Page 24: ......
Page 28: ...Engineering Guidelines 14 ...
Page 29: ...Chapter 3 TYPICAL CONFIGURATIONS ...
Page 30: ......
Page 73: ...Chapter 4 PHONES AND VOICE APPLICATIONS ...
Page 74: ......
Page 95: ...Phones and Voice Applications 81 Figure 9 ICP Connection Paths and Limitations ...
Page 100: ...Engineering Guidelines 86 ...
Page 101: ...Chapter 5 POWER ...
Page 102: ......
Page 128: ...Engineering Guidelines 114 ...
Page 129: ...Chapter 6 PERFORMANCE ...
Page 130: ......
Page 135: ...Chapter 7 APPLICATIONS ...
Page 136: ......
Page 142: ...Engineering Guidelines 128 ...
Page 143: ...Chapter 8 EMERGENCY SERVICES ...
Page 144: ......
Page 151: ...Chapter 9 IP NETWORKING ...
Page 152: ......
Page 167: ...Chapter 10 LICENSING ...
Page 168: ......
Page 183: ...Chapter 11 BANDWIDTH CODECS AND COMPRESSION ...
Page 184: ......
Page 209: ...Chapter 12 NETWORK CONFIGURATION CONCEPTS ...
Page 210: ......
Page 244: ...Engineering Guidelines 230 ...
Page 245: ...Chapter 13 NETWORK CONFIGURATION SPECIFICS ...
Page 246: ......
Page 309: ...Appendix A CAT 3 WIRING ...
Page 310: ......
Page 315: ...CAT 3 Wiring 301 Figure 55 CX MX MXe AX and LX Minimum Cable Standard ...
Page 316: ...Engineering Guidelines 302 ...
Page 317: ...Appendix B INSTALLATION EXAMPLES ...
Page 318: ......
Page 335: ...Appendix C LLDP AND LLDP MED CONFIGURATION EXAMPLES ...
Page 336: ......
Page 347: ...Appendix D VOIP AND VLANS ...
Page 348: ......
Page 353: ...Appendix E VOIP SECURITY ...
Page 354: ......
Page 381: ... ...