Nokia ESB26 User Manual page 46

5.
Setting the Backpressure Mode
The backpressure command, in Interface Configuration mode, changes the backpressure
mode. Backpressure is a technique for ensuring that a transmitting port does not send too
much data to a receiving port at a given time. When the buffer capacity of a receiving port is
exceeded, it sends a Jam message to the transmitting port to halt transmission.
Backpressure is available only if the port transmits or receives at Half Duplex speed.
By default, backpressure is disabled.
NOTE Backpressure is available only if the port transmits or receives at Half Duplex speed.
Command Syntax
device-name(config-if UU/SS/PP)#backpressure {enable | disable}
Argument Description
enable Enables backpressure on the configured interface.
disable Disables backpressure on the configured interface
Flow Control
Setting the
The flow control command, in Interface Configuration mode, changes the flow control mode.
Flow control is a technique for ensuring that a transmitting port does not send too much data
to a receiving port at a given time.
If a buffer on a port runs out of space, the port transmits a special packet that requests remote
ports to delay sending packets for a period of time. The flow control command is available
only if the port transmits or receives in Full Duplex.
By default the flow control is disabled.
NOTE The flow control command is available only if the port transmits or receives in Full Duplex.
Command Syntax
device-name(config-if UU/SS/PP)#flow control {enable | disable}
Argument Description
enable Enables flow control on the configured interface.
disable Disables flow control on the configured interface.
Setting the Port PVID
The default vlan command, in Interface Configuration mode, changes the default VLAN
(PVID) of the configured interface. The no form of this command changes the default VLAN
of the interface to VLAN 1.
MN700004 Rev 01
Ethernet Interface Configuration
Mode
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