Flow-Control - H3C s3600 series Command Manual

System View: return to User View with Ctrl+Z.
[Sysname] interface Ethernet 1/0/1
[Sysname-Ethernet1/0/1] shutdown
[Sysname-Ethernet1/0/1]
%Apr 5 07:25:37:634 2000 Sysname L2INF/5/PORT LINK STATUS CHANGE:- 1 -
Ethernet1/0/1 is DOWN
[Sysname-Ethernet1/0/1] undo shutdown
[Sysname-Ethernet1/0/1]
%Apr 5 07:25:56:244 2000 Sysname L2INF/5/PORT LINK STATUS CHANGE:- 1 -
Ethernet1/0/1 is UP
# Disable Ethernet 1/0/1 from outputting Up/Down log information and execute the shutdown
command or the undo shutdown command on Ethernet 1/0/1. No Up/Down log information is output
for Ethernet 1/0/1.
[Sysname-Ethernet1/0/1] undo enable log updown
[Sysname-Ethernet1/0/1] shutdown
[Sysname-Ethernet1/0/1] undo shutdown

flow-control

Syntax
flow-control
undo flow-control
View
Ethernet port view
Parameters
None
Description
Use the flow-control command to enable flow control on the current Ethernet port.
Use the undo flow-control command to disable flow control on the port.
Suppose flow control is enabled on both the local and peer switches. When congestion occurs on the
local switch,
the local switch sends a message to notify the peer switch of stopping sending packets to itself or
reducing the sending rate temporarily,
the peer switch will stop sending packets to the local switch or reduce the sending rate temporarily when
it receives the message; and vice versa. By this way, packet loss is avoided and the network service
operates normally.
By default, flow control is disabled on a port.
Examples
# Enable flow control on the Ethernet 1/0/1 port.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
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