SMC Networks ES4704BD Manual page 154

Function: Enables the loopback test function for the network management port; the "no
loopback" command disables the loopback test the on network management port.
Command mode: Network management port configuration Mode
Default: Loopback test is disabled in network management port by default.
Usage Guide: Loopback test can be used to verify the network management port is
working normally. After loopback has been enabled, the port will assume a connection
established to itself, and all traffic sent from the port will be received at this very port.
Example: Enable loopback test in the network management port.
Switch(Config)#interface ethernet 0
Switch(Config-Ethernet0)#loopback
4.2.3.2.5 shutdown
Command: shutdown
no shutdown
Function: Shuts down the network management port; the "no shutdown" command
opens the port.
Command mode: Network management port configuration Mode
Default: Network management port is open by default.
Usage Guide: When network management port is shut down, no data frames are sent in
the port, and the port status displayed when the user typed "show interface" command
is "down".
Example: Enable the network management interface.
Switch(Config)#interface ethernet 0
Switch(Config-Ethernet0)#no shutdown
4.2.3.2.6 speed
Command: speed {auto| force10| force100}
Function: Sets port speed
Parameters: auto for auto-negotiation of speed; force10 for forced 10Mbps; force100
for forced half 100Mbps.
Command mode: Network management port configuration Mode
Default: Auto-negotiation for speed is set by default.
Usage Guide: According to IEEE 802.3, the auto-negotiation for port speed and duplex
are linked. If the port speed setting is auto-negotiation, the port duplex mode will also be
set to auto-negotiation automatically; if the port speed changes from auto-negotiation to
forced, the port duplex mode will also become forced full/half-duplex.
It is strongly recommended for users to set all port speed and duplex mode to
auto-negotiation, this can minimize protocol-related connection problems. If forced
speed/duplex mode needs to be set, the speed/duplex mode setting of both ends must
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