Cisco Small Business 200 Series

Administration
Control Packet Handling
Cisco Small Business 200E Series Advanced Smart Switch Command Reference 23
2
Control Packet Handling
You can use the commands described in this section to control how the switch
handles packets of the Cisco Discovery Protocol (CDP), Link Layer Discovery
Protocol (LLDP), or 802.1X protocol.
protocol cdp
Use this command to drop or forward Cisco Discovery Protocol (CDP) packets.
CDP enables directly connected devices to share information such as their IP
addresses, capabilities, and software versions. Although the switch does not use
CDP to share its own information, by default it forwards CDP packets on behalf of
connected devices within a VLAN.
protocol cdp {drop | forward}
Syntax Descriptions
Default
CDP packets are forwarded.
Command Modes
Global Config
protocol {lldp | dot1x}
Use this command to drop, forward, or terminate Link Layer Discovery Protocol
(LLDP) or IEEE 802.1X Extensible Authentication Protocol over LAN (EAPOL)
packets.
protocol {lldp | dot1x} {drop | forward | terminate}
Parameter Description
drop The switch drops all CDP packets.
forward The switch forwards all CDP packets.