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Lldp non-strict-med-tlv-order-check, Lldp non-strict-med-tlv-order, Check – Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) User Manual

Page 1937

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LLDP Commands

Software Reference for x310 Series Switches

C613-50046-01 REV A

AlliedWare Plus

TM

Operating System - Version 5.4.4C

71.11

lldp non-strict-med-tlv-order-check

Use this command to enable non-strict order checking for LLDP-MED advertisements it
receives. That is, use this command to enable LLDP to receive and store TLVs from LLDP-
MED advertisements even if they do not use standard TLV order.

Use the no variant of this command to disable non-strict order checking for LLDP-MED
advertisements, that is, to set strict TLV order checking, so that LLDP discards any LLDP-
MED TLVs that occur before the LLDP-MED Capabilities TLV in an advertisement.

Syntax

lldp non-strict-med-tlv-order-check

no lldp non-strict-med-tlv-order-check

Default

By default TLV non-strict order checking for LLDP-MED advertisements is disabled. That is,
strict order checking is applied to LLDP-MED advertisements, according to ANSI/TIA-1057,
and LLDP-MED TLVs in non-standard order are discarded.

Mode

Global Configuration

Usage

The ANSI/TIA-1057 specifies standard order for TLVs in LLDP-MED advertisements, and
specifies that if LLDP receives LLDP advertisements with non-standard LLDP-MED TLV
order, the TLVs in non-standard order should be discarded. This implementation of LLDP-
MED follows the standard: it transmits TLVs in the standard order, and by default discards
LLDP-MED TLVs that occur before the LLDP-MED Capabilities TLV in an advertisement.
However, some implementations of LLDP transmit LLDP-MED advertisements with non-
standard TLV order. To receive and store the data from these non-standard
advertisements, enable non-strict order checking for LLDP-MED advertisements using this
command.

Examples

To enable strict TLV order checking, use the commands:

To disable strict TLV order checking, use the commands:

Related Commands

show running-config lldp

awplus#

configure terminal

awplus(config)#

lldp tlv-order-check

awplus#

configure terminal

awplus(config)#

no lldp tlv-order-check