Technical data

BLADE OS 5.1 Application Guide
88
 Chapter 6: Link Layer Discovery Protocol BMD00136, November 2009
The LLDP information to be distributed by the G8000 ports, and that which has been collected from
other LLDP stations, is stored in the switch’s Management Information Base (MIB). Network
Management Systems (NMS) can use Simple Network Management Protocol (SNMP) to access
this MIB information. LLDP-related MIB information is read-only.
Changes, either to the local switch LLDP information or to the remotely received LLDP
information, are flagged within the MIB for convenient tracking by SNMP-based management
systems.
For LLDP to provide expected benefits, all network devices that support LLDP should be consistent
in their LLDP configuration.
Enabling or Disabling LLDP
Global LLDP Setting
By default, LLDP is enabled on the G8000. To turn LLDP off or on, use the following commands:
Transmit and Receive Control
The G8000 can also be configured to transmit or receive LLDP information on a port-by-port basis.
By default, when LLDP is globally enabled on the switch, G8000 ports transmit and receive LLDP
information (see the tx_rx option below). To change the LLDP transmit and receive state, the
following commands are available:
To view the LLDP transmit and receive status, use the following commands:
>> # lldp enable (Turn LLDP off globally)
or
>> # no lldp enable (Turn LLDP on globally)
>> # interface port 1 (Select a switch port)
>> (config-if)# lldp admin-status tx_rx (Transmit and receive LLDP)
>> (config-if# lldp admin-status tx_only (Only transmit LLDP)
>> (config-if# lldp admin-status rx_only (Only receive LLDP)
>> (config-if# no lldp admin-status (Do not participate in LLDP)
>> # show lldp port (View LLDP status of all ports)
or
>> # show interface port <n> lldp (View status of the selected port)