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Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) User Manual

Page 1917

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LLDP, LLDP-MED and Voice VLAN Introduction and Configuration

Software Reference for x310 Series Switches

C613-50046-01 REV A

AlliedWare Plus

TM

Operating System - Version 5.4.4C

70.13

Advanced LLDP configuration

The configuration procedure above and the defaults for other settings suit most networks. Use the following
commands for fine tuning if necessary.
Timer intervals should be long enough not to create unnecessarily high numbers of advertisements when there
are topology changes. However, be aware that if the intervals are long, a neighbor’s information can continue
to be stored after its information has changed, or after it is disconnected.

12.

awplus#

configure terminal

Enter Configuration mode.

13.

awplus(config)#

interface <port-list>

Enter Interface Configuration mode for the switch
ports.

14.

awplus(config-if)#

lldp management-address

Override the default LLDP management address
advertised through this port if required. This must
be an IPv4 address that is already configured on
the device. To see the management address that
will be advertised, use the

show lldp local-info

command on page 71.39

.

15.

awplus(config-if)#

lldp notifications

By default, SNMP notifications are not transmitted.
Enable them for these ports if required. (SNMP
LLDP traps (notifications) must also be enabled.)

16.

awplus(config-if)#

exit

Return to Global Configuration mode.

17.

awplus(config)#

lldp timer <5-32768>

The transmit interval determines how often
regular LLDP transmits advertisements from each
port. The transmit interval must be at least four
times the transmission delay.
Default: 30 seconds

18.

awplus(config)#

lldp notification-interval <5-

3600>

The notification interval determines the minimum
interval between sending SNMP notifications
(traps).
Default: 5 seconds

19.

awplus(config)#

lldp tx-delay <1-8192>

A series of successive changes over a short period
of time can trigger the agent to send a large
number of LLDPDUs. To prevent this, there is a
transmission delay timer. This establishes a
minimum length of time that must elapse
between successive LLDP transmissions. The
transmission delay cannot be greater than a
quarter of the transmit interval.
Default: 2 seconds

20.

awplus(config)#

lldp reinit <1-10>

Reinitialization delay timer determines the
minimum time after disabling LLDP on a port
before it can reinitialize.
Default: 2 seconds

21.

awplus(config)#

lldp holdtime-multiplier <2-

10>

The transmit interval is multiplied by the holdtime
multiplier to give the Time To Live (TTL) value that
is advertised to neighbors.
Default: 4

22.

awplus(config)#

exit

Return to Privileged Exec mode.

Clear data

If necessary, you can clear either neighbor information or LLDP statistics for particular ports or all ports.

23.

awplus#

clear lldp table [interface ]

Clear the information from the table of neighbor
information.

24.

awplus#

clear lldp statistics [interface ]

Clear LLDP statistics (packet and event counters).

Table 70-4: Configuration procedure for LLDP

(cont.)