Time-to-live for received information – Blade ICE RACKSWITCH G8124-E User Manual

Page 352

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BLADEOS 6.5.2 Application Guide

352 Chapter 25: Link Layer Discovery Protocol

BMD00220, October 2010

To view detailed information for a remote device, specify the Index number as found in the
summary. For example, in keeping with the sample summary, to list details for the first remote
device (with an

Index

value of 1), use the following command:

Note –

Received LLDP information can change very quickly. When using show commands, it is

possible that flags for some expected events may be too short-lived to be observed in the output.

Time-to-Live for Received Information

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 should be immediately removed.

RS G8124(config)# show lldp remote-device 1

Local Port Alias: 3

Remote Device Index

: 1

Remote Device TTL

: 99

Remote Device RxChanges : false

Chassis Type

: Mac Address

Chassis Id

: 00-18-b1-33-1d-00

Port Type

: Locally Assigned

Port Id

: 23

Port Description

: 7

System Name

:

System Description : BNT 1/10Gb Uplink Ethernet Switch Module,

flash image: version 5.1.0,

boot image: version 5.1.0.12

System Capabilities Supported : bridge, router

System Capabilities Enabled

: bridge, router

Remote Management Address:

Subtype

: IPv4

Address

: 10.100.120.181

Interface Subtype

: ifIndex

Interface Number

: 128

Object Identifier

:

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