Emulex 355 manual Managing Firmware and Configuration Files, Diagnostics, Bypass on Clock Delta

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

Diagnostics

The following settings are available.

Setting	Description
Port Control	The method for controlling a port. Options include:
	• auto – the default setting. The switch will automatically insert a
	port based on policy settings. This prevents the insertion of
	incompatible ports, which may cause disruption.
	• bypass – removes a port from the network. Use this mode to
	keep a device out of an initialization cycle when troubleshooting.
	• extLoopback – removes a port from the network and routes the
	port's receive signal back through the port's transmitter. Use this
	mode to isolate a specific zone for troubleshooting or to test a
	transceiver’s circuitry and attached media from the node end.
	• insert – allows ports whose transceivers cannot derive a valid
	clock or "K" character (Ordered Set) to join a zone. Use this
	mode cautiously – devices without valid characters may put bad
	data into a zone, causing the zone to go down.
Bypass on Clock Delta	The switch determines the relative frequency of the signal being
	received by a port to the internal switch clock. The result of this
	test allows the determination of how far apart in frequency the
	switch’s clock is in relation to the clock of the received signal – the
	clock delta. If the clock delta exceeds a set threshold, the switch is
	notified and the port may be bypassed if necessary. Typically,
	clock drift is slow enough to allow the removal and replacement of
	a defective part before the defective part begins to affect system
	performance.

Managing Firmware and Configuration Files

The Switch Files page displays information on the switch’s firmware and configuration files. To view the firmware and configuration files, click Switch > Files.

The Switch Files page appears.

Figure 3-11: Switch Files page

EMULEX CORPORATION 32

PART NUMBER 00041407-002 REV. B