Cisco Catalyst LLDP – Cisco LLDP Configuration Guide

ciscocisco-catalystlldp

I am following the guide that is listed here for enabling LLDP on my Cisco Catalyst 3560G switch.

In short I entered the following into my switch.

Switch# configure terminal
Switch(config)# lldp run
Switch(config)# interface GigabitEthernet 0/5
Switch(config-if)# lldp transmit
Switch(config-if)# lldp receive
Switch(config-if)# end

What I am confused about however is that LLDP is enabled on all ports not just 0/5. This is actually what I wanted but I am curious if specifying 0/5 which I am forced to do or it doesn't recognize the command has any implications?

P.S.

If anyone has a better title for this let me know. I am very new to switches and layer 2 networking protocols.

Best Answer

Summarizing the conversation of this post the command

interface GigabitEthernet 0/5

Was not doing anything since LLDP was enabled globally already. This would however allow you to disable LLDP on an interface and have it enabled on every other port. I don't see a huge use for enabling it on just one port other than being explicit but maybe someone else can fill in this knowledge gap.

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