Emulex 355 manual Port Utilization and Health, Port Color Indication Green, Yellow, Red, Gray

EMULEX MODEL 355 SAN STORAGE SWITCH	CHAPTER 3: SWITCH MANAGEMENT
USER’S GUIDE

Port Utilization and Health

Port utilization measures the amount of traffic passing into a port over a period of time. For example, if an initiator is transmitting data to a target, the initiator port displays a port utilization value (%) while the target port does not. If the same initiator is receiving data from the target, the target port displays a port utilization value (%) while the initiator port displays does not.

This part of the Web page displays each port number, the port’s current health status, and a vertical bar indicating the port utilization.

Tip: Rolling the mouse cursor over the port number displays the current port state.

A port number is displayed in one of three colors depending on the port’s current health:

Port Color	Indication
Green	An SFP is inserted into the port and a device is connected to the SFP.
Yellow	• Bypassed – The port is bypassed. An SFP may be inserted in the port but
	there may not be a device connected to the SFP.
	• Loopback – There is no device connected to the port. The transmit and
	receiver are connected together on the SFP transceiver.
	• LIPF8Present – If the switch is receiving an F8 Failure notification, the port
	is bypassed to allow remaining devices to proceed with initialization.
	• Redundant – The port is a failover link in a cascade and is not currently
	active.
Red	• TxFault – Detects an SFP transmitter fault.
	• DiagTx – Detects Ordered Sets being transmitted, so traffic cannot be
	passed through the port.
	• DataTimeout – Detects a data timeout fault.
	• RxLoss – Detects a loss of received signal amplitude from the device.
	• SyncLoss – Detects a loss of word synchronization for a specified time,
	which may be caused by poor signal strength, intermittent line conditions,
	and so on.
Gray	• Unknown – The port status cannot be determined.
	• NoSFP – There is no SFP connector inserted in the port.

Port utilization is measured by a vertical bar that moves upwards as utilization increases. The vertical bar has the three distinct levels of utilization:

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.

EMULEX CORPORATION 46

PART NUMBER 00041407-002 REV. B