CLI Reference Guide

Chapter 11 | Interface Commands
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Command Usage
Use the no discard command to allow CDP or PVST packets to be forwarded to
other ports in the same VLAN which are also configured to forward the specified
packet type.
Example
The following example forwards CDP packets entering port 5.
Console(config)#interface ethernet 1/5
Console(config-if)#discard cdp
Console(config-if)#
flowcontrol This command enables flow control. Use the no form to disable flow control.
Syntax
[no] flowcontrol
Default Setting
Disabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
Flow control can eliminate frame loss by “blocking” traffic from end stations or
segments connected directly to the switch when its buffers fill. When enabled, back
pressure is used for half-duplex operation and IEEE 802.3-2002 (formally IEEE
802.3x) for full-duplex operation.
Example
The following example enables flow control on port 5.
Console(config)#interface ethernet 1/5
Console(config-if)#flowcontrol
Console(config-if)#