Configuring Link Change Suppression On An Ethernet Interface - HP 3600 v2 series Configuration Manual
Hide thumbs
Also See for 3600 v2 series:
- Command reference manual (510 pages) ,
- Configuration manual (449 pages) ,
- Security configuration manual (398 pages)
Table of Contents
Advertisement
To do...
Enter system view
Enter Ethernet interface view
Enable flow control
Configuring link change suppression on an Ethernet interface
An Ethernet interface has two physical link states: up and down. Each time the physical link of an
interface goes up or comes down, the physical layer reports the change to the upper layers, and the
upper layers handle the change, resulting in increased overhead.
To prevent physical link flapping from affecting system performance, configure link change suppression
to delay the reporting of physical link state changes. When the delay expires, the interface reports any
detected change.
Link change suppression does not suppress administrative up or down events. When you shut down or
bring up an interface by using the shutdown or undo shutdown command, the interface reports the event
to the upper layers immediately.
Link-down event suppression enables an interface to suppress link-down events and start a delay timer
each time the physical link goes down. During this delay, the interface does not report the link-down
event, and the display interface brief or display interface command displays the interface state as UP. If
the physical link is still down when the timer expires, the interface reports the link-down event to the upper
layers.
Link-up event suppression enables an interface to suppress link-up events and start a delay timer each
time the physical link goes up. During this delay, the interface does not report the link-up event, and the
display interface brief or display interface command displays the interface state as DOWN. If the
physical link is still up when the timer expires, the interface reports the link-up event to the upper layers.
Configuring link-down event suppression
Follow these steps to enable an Ethernet interface to suppress link-down events:
To do...
Enter system view
Enter Ethernet interface view
Set a link-down event
suppression interval
Configuring link-up event suppression
Follow these steps to configure link-up event suppression on an Ethernet interface:
Use the command...
system-view
interface interface-type
interface-number
•
Enable TxRx flow control:
flow-control
•
Enable Rx flow control:
flow-control receive enable
Use the command...
system-view
interface interface-type
interface-number
link-delay delay-time
4
Remarks
—
—
Required
Use either command.
By default, Rx flow control is disabled
on an Ethernet interface.
Remarks
—
—
Required
Link-down event suppression is disabled by
default.
- Quick Links:
- Configuring a Combo Interface
Hide quick links:
Advertisement
Table of Contents
