HP Storage EVA Capacity Upgrades - Manual (Page 20)

20 Switch Management
Port Utilization and Health
This part of the Web page displays each port number, the port’s current health status, and a vertical
bar indicating the port utilization.
Port utilization measures the amount of traffic passing through a port over a period of time. The port
utilization indicated by the vertical bar reflects the average of the sum of the transmit (Tx) and receive
(Rx) utilization for that port.
A port number is displayed in one of four colors depending on the port’s current health:
Port utilization is measured by a vertical bar that moves upwards as utilization increases. The vertical
bar has the three distinct levels of utilization:
Serial Number A unique identification number assigned to each switch at the factory.
Hardware version The hardware version of the switch.
Switch up-time The duration of time that the switch has been operational. If the switch is rebooted
or power is cycled, this value is reset.
Item Status Indicators
Port Color Indication
Green An SFP is inserted into the port and a device is connected to the SFP.
Yellow May indicate one of the following conditions:
• The port is bypassed. An SFP may be inserted in the port but there may not be a device
connected to the SFP.
• The port is in loopback mode. There is no device connected to the port. The transmit and
receiver are connected together on the SFP transceiver.
• The switch is receiving an F8 Failure notification, so the port is bypassed to allow remaining
devices to proceed with initialization.
• The port is a failover link in a cascade and is not currently active.
Red May indicate one of the following conditions:
• An SFP transmitter fault has been detected.
• Ordered sets are being transmitted, so traffic cannot be passed through the port.
• A data timeout fault has been detected.
• A loss of received signal amplitude from the device has been detected.
• A loss of word synchronization for a specified time has been detected, which may be caused
by poor signal strength, intermittent line conditions, and so on.
Gray May indicate one of the following conditions:
• The port status cannot be determined.
• There is no SFP connector inserted in the port.
Bar Color Indication
Green The port is operating at optimal utilization.
Yellow The port is experiencing periods of heavy traffic.
Red The port has too much traffic on it and is not operating at desired levels. Some devices should
be transferred to other ports to improve port utilization.