Siemens S223 - Duplex Mode; Flow Control

UMN:CLI User Manual
SURPASS hiD 6615 S223/S323 R1.5
76 A50010-Y3-C150-2-7619
SWITCH(bridge)# show port 1
-------------------------------------------------------------------
NO TYPE PVID STATUS MODE FLOWCTRL INSTALLED
(ADMIN/OPER)
-------------------------------------------------------------------
1: Ethernet 1 Up/Up Force/Half/100 Off Y
SWITCH(bridge)# port speed 1 10
SWITCH(bridge)# show port 1
-------------------------------------------------------------------
NO TYPE PVID STATUS MODE FLOWCTRL INSTALLED
(ADMIN/OPER)
-------------------------------------------------------------------
1: Ethernet 1 Up/Up Force/Half/10 Off Y
SWITCH(bridge)#
5.2.4 Duplex Mode
Only unidirectional communication is practicable on half duplex mode, and bidirectional
communication is practicable on full duplex mode. By transmitting packet for two ways,
Ethernet bandwidth is enlarged two times- 10Mbps to 20Mbps, 100Mbps to 200Mbps.
To set duplex mode, use the following command.
Command Mode Description
port duplex PORTS {full | half} Bridge
Sets full or half duplex mode of specified port, enter the
port number.
The following is an example of configuring duplex mode of port 1 as half mode and show-
ing it.
SWITCH(bridge)# show port 1
-------------------------------------------------------------------
NO TYPE PVID STATUS MODE FLOWCTRL INSTALLED
(ADMIN/OPER)
-------------------------------------------------------------------
1: Ethernet 1 Up/Up Force/Full/100 Off Y
SWITCH(bridge)# port duplex 1 half
SWITCH(bridge)# show port 1
-------------------------------------------------------------------
NO TYPE PVID STATUS MODE FLOWCTRL INSTALLED
(ADMIN/OPER)
-------------------------------------------------------------------
1: Ethernet 1 Up/Down Force/Half/100 Off Y
SWITCH(bridge)#
5.2.5 Flow Control
Ethernet ports on the switches use flow control to restrain the transmission of packets to
the port for a period time. Typically, if the receive buffer becomes full, the port transmits a
pause packet that tells remote ports to delay sending more packets for a specified period
time. In addition, the Ethernet ports can receive and act upon pause packets from other
devices.