Time-To-Live For Received Information; Lldp Example Configuration - IBM RackSwitch G8000 Application Manual

Time-to-Live for Received Information

LLDP Example Configuration

© Copyright IBM Corp. 2011
Each remote device LLDP packet includes an expiration time. If the switch port does
not receive an LLDP update from the remote device before the time-to-live clock
expires, the switch will consider the remote information to be invalid, and will
remove all associated information from the MIB.
Remote devices can also intentionally set their LLDP time-to-live to 0, indicating to
the switch that the LLDP information is invalid and must be immediately removed.
1. Turn LLDP on globally.
RS G8000(config)# lldp enable
2. Set the global LLDP timer features.
RS G8000(config)# lldp transmission-delay 30
RS G8000(config)# lldp transmission-delay 2
RS G8000(config)# lldp holdtime-multiplier 4
RS G8000(config)# lldp reinit-delay 2
RS G8000(config)# lldp trap-notification-interval
between)
3. Set LLDP options for each port.
RS G8000(config)# interface port <n>
RS G8000(config-if)# lldp admin-status tx_rx
RS G8000(config-if)# lldp trap-notification
notifications)
RS G8000(config-if)# lldp tlv all
RS G8000(config-if)# exit
4. Enable syslog reporting.
RS G8000(config)# logging log lldp
5. Verify the configuration settings:
RS G8000(config)# show lldp
6. View remote device information as needed.
RS G8000(config)# show lldp remote-device
or
RS G8000(config)# show lldp remote-device <index number>
(Transmit each 30 seconds)
(No more often than 2 sec.)
(Remote hold 4 intervals)
(Wait 2 sec. after reinit.)
5(Minimum 5 sec.
(Select a switch port)
(Transmit and receive LLDP)
(Enable SNMP trap
(Transmit all optional information)
Chapter 26. Link Layer Discovery Protocol
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