HP FlexNetwork NJ5000, Руководство пользователя

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Item Description
the remote MDI mode.
•
When crossover cables are used, the local MDI mode must be the same as the
remote MDI mode, or the MDI mode of at least one end must be set to
auto
.
Flow Control
Enable or disable flow control on the port.
With flow control enabled at both sides, when traffic congestion occurs on the ingress
port, the ingress port sends a Pause frame notifying the egress port to temporarily
suspend the sending of packets. The egress port is expected to stop sending any new
packet when it receives the Pause frame. In this way, flow control helps to avoid
dropping of packets.
Flow control works only after it is enabled on both the ingress and egress ports.
Power Save
Enable or disable auto power-down on a port that is down.
By default, auto power-down is disabled on an Ethernet port that is down.
With auto power-down enabled on an Ethernet port that stays in the down state for a
certain period, the following events occur:
•
The device automatically stops supplying power to the port.
•
The port enters the power save mode.
When the Ethernet port comes up, the following events occur:
•
The device automatically restores power supply to the port.
•
The port resumes its normal state.
Max MAC Count
Set the MAC learning limit on the port:
•
User Defined
—
Select this option to set the limit manually.
•
No Limited
— Select this option to set no limit.
EEE
Enable or disable Energy Efficient Ethernet (EEE) on a link-up port.
With EEE enabled, when a link-up Ethernet port does not receive any packet for a
certain period, it automatically enters low power mode. When a packet arrives later, the
device restores power supply to the port and the port resumes its normal state.
Broadcast
Suppression
Set broadcast suppression on the port:
•
ratio
—
Sets the maximum percentage of broadcast traffic to the total bandwidth of
an Ethernet port. When you select this option, you must enter a percentage in the
box below.
•
pps
—
Sets the maximum number of broadcast packets that can be forwarded on
an Ethernet port per second. When you select this option, you must enter a
number in the box below.
•
kbps
— Sets the maximum number of kilobits of broadcast traffic that can be
forwarded on an Ethernet port per second. When you select this option, you must
enter a number in the box below.
Multicast
Suppression
Set multicast suppression on the port:
•
ratio
—
Sets the maximum percentage of multicast traffic to the total bandwidth of
an Ethernet port. When you select this option, you must enter a percentage in the
box below.
•
pps
— Sets the maximum number of multicast packets that can be forwarded on an
Ethernet port per second. When you select this option, you must enter a number in
the box below.
•
kbps
—
Sets the maximum number of kilobits of multicast traffic that can be
forwarded on an Ethernet port per second. When you select this option, you must
enter a number in the box below.
Unicast
Suppression
Set unicast suppression on the port:
•
ratio
—
Sets the maximum percentage of unicast traffic to the total bandwidth of an
Ethernet port. When you select this option, you must enter a percentage in the box
below.
•
pps
—
Sets the maximum number of unicast packets that can be forwarded on an
Ethernet port per second. When you select this option, you must enter a number in