Configuring LLDP global parameters

When LLDP is enabled, the default values of its parameters are set. You can change the configuration of these parameters in LLDP configuration mode.

Specifying a system name for the Extreme device hardware

The global system name for LLDP is useful for differentiating between devices. By default, the host name from the chassis/entity management information base is used. By specifying a descriptive system name, you may find it easier to distinguish the device with LLDP. The following example changes the system name to Extreme_Alpha.

device(conf-lldp)# system-name Extreme_Alpha

Specifying an LLDP system description

The default system description depends on the device type. For example, the default description for an SLX 9540 router is Extreme SLX9540 Router.

Extreme recommends that you use the operating system version for the description or use the description from the chassis/entity management information base (MIB).

Do not use special characters, such as #$!@, as part of the system name and description. The following example specifies the IT_1.6.2_LLDP_01 system description.

device(conf-lldp)# system-description IT_1.6.2_LLDP_01

Specifying a user description for LLDP

A user description for LLDP is for network administrative purposes and is not seen by neighboring devices. The following example specifies the LLDP-installed-jan-25 description.

device(conf-lldp)# description Extreme-LLDP-installed-jan-25

Enabling and disabling the receiving and transmitting of LLDP frames

By default both transmit and receive for LLDP frames is enabled.

The following example enables only receiving of LLDP frames.
```
device(conf-lldp)# mode rx
```
The following example enables only transmitting of LLDP frames.
```
device(conf-lldp)# mode tx
```

Configuring the transmit frequency of LLDP frames

The default transmit frequency of LLDP frames is 30 seconds. You can change the frequency from 4 to 180 seconds. The following example changes the frequency to 45 seconds.

device(conf-lldp)# hello 45

Configuring the hold time for receiving devices

By default, four consecutive LLDP hello packets can be missed before removing the neighbor information. You can configure from 1 to 10 consecutive LLDP hello packets that can be missed before removing the neighbor information. The following example configures the 6 consecutive LLDP hello packets.

device(conf-lldp)# multiplier 6

Advertising the optional LLDP TLVs

By default, the port description and system name are advertised

You can advertise the rest of the optional LLDP TLVs. The following example advertises the management address, capabilities, name and description of the device, and user-configured port.

device(conf-lldp)# advertise optional-tlv management-address port-description system-capabilities system-name system-description

Configuring the advertisement of LLDP organizationally-specific TLVs

You have the option of advertising dot1.tlv and dot3.tlv. The following example advertise dot1.tlv.

Note

Extreme does not recommend advertising dot1.tlv and dot3.tlv LLDPs if your network contains Converged Network Adapters (CNAs) from non-Extreme vendors. Functionality problems can occur.

device(conf-lldp)# advertise dot1-tlv