CDP or LLDP both run at Layer2
We don’t need even ip addressing on neighboring devices to see one
another
CDP
|
LLDP
|
Cisco Proprietary
|
Open Standard
|
CDP tends to more lightweight protocol as compared to LLDP
|
We have availability to do more customization with LLDP
|
LLDP control what information is
sent between neighbors. We can send a collection of attribute and these
attribute control type, length and value description. That often abbreviated
TLV. We have variety of TLV
|
CDP enabled by default
To Enable LLDP in Cisco Switch
Ø Sw1(config)#lldp run
For controlling the LLDP to what information sent to
neighbors
Ø Sw1(config)# lldp tlv-select ?
To Show more information about neighbors
Ø Sw1#show lldp neighbors
Ø Sw1#show lldp neighbors detail
To Disable LLDP in particular interface
Ø Sw1(config)#interface fastethernet 1/0/1
Ø Sw1(config-if)#no lldp receive
Ø Sw1(config-if)# no lldp transmit
Conclusion: - LLDP
can give us very similar information like CDP. Infact bit more information we
have more granular control over what information get exchanged and its Vendor
inoperable
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