Cisco Catalyst 4500 series Administration Manual page 406

Configuring Optional Interface Features
To configure flow control, perform this task:
Command
Step 1
Switch# configure terminal
Step 2
Switch(config)# interface
interface-id
Step 3
Switch(config-if)# flowcontrol
{receive | send} {off | on |
desired}
Step 4
Switch(config-if)# end
Step 5
Switch(config)# end
This example shows how to configure flow control on an oversubscribed Gigabit Ethernet port 7/5:
Switch# configure terminal
Switch(config)# interface g7/5
Switch(config-if)# flowcontrol send on
Switch(config-if)# end
Switch)# show interfaces gigabitEthernet 7/5 capabilities
GigabitEthernet7/5
Model:
Type:
Speed:
Duplex:
Trunk encap. type:
Trunk mode:
Channel:
Broadcast suppression: percentage(0-100), hw
Flowcontrol:
VLAN Membership:
Fast Start:
Queuing:
CoS rewrite:
ToS rewrite:
Inline power:
SPAN:
UDLD:
Link Debounce:
Link Debounce Time:
Port Security:
Dot1x:
Maximum MTU:
Multiple Media Types:
Diagnostic Monitoring: N/A
Switch)# show flowcontrol interface GigabitEthernet 7/5
Port
---------
Gi7/5
This example shows the output of the show interfaces and show flow control commands on an
non-oversubscribed Gigabit Ethernet port 5/5:
Switch# show interfaces gigabitEthernet 5/5 capabilities
GigabitEthernet5/5
Model:
Type:
Speed:
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
8-24
Purpose
Enters global configuration mode.
Enters interface configuration mode and specifies the interface to be
enabled for flowcontrol.
Configures a Gigabit Ethernet port to send or receive pause frames.
Returns to configuration mode.
Returns to privileged EXEC mode.
WS-X4548-GB-RJ45-RJ-45
10/100/1000-TX
10,100,1000,auto
half,full,auto
802.1Q,ISL
on,off,desirable,nonegotiate
yes
rx-(off,on,desired),tx-(off,on,desired)
static, dynamic
yes
rx-(N/A), tx-(1p3q1t, Sharing/Shaping)
yes
yes
no
source/destination
yes
no
no
yes
yes
1552 bytes (Baby Giants)
no
Send FlowControl Receive FlowControl
admin oper admin
-------- -------- -------- --------
on off desired
WS-X4306-GB-Gbic
No Gbic
1000
RxPause TxPause
oper
------- -------
off 0 0
Chapter 8 Configuring Interfaces
OL-30933-01