Enterasys Networks 2S4082-25-SYS, 7S4280-19-SYS manual Troubleshooting Checklist

		Troubleshooting Checklist
Table 5-2 Troubleshooting Checklist (continued)
Problem	Possible Cause	Recommended Action
Cannot contact the	IP address not assigned.	Refer to the Enterasys Matrix DFE-Diamond/Platinum
module through		Series Configuration Guide for the IP address
in-band		assignment procedure.
management.
	Port is disabled.	Enable port. Refer to the Enterasys Matrix

DFE-Diamond/Platinum Series Configuration Guide for instructions to enable/disable ports.

Host Port policy and/or management VLAN is incorrectly configured, or not configured.

Verify that a management VLAN exists and that it is associated with the Host Port.

Refer to the Enterasys Matrix DFE-Diamond/Platinum Series Configuration Guide for information about Host Port and management VLAN configuration.

	No link to device.	Verify that all network connections between the
		network management station and the module are valid
		and operating.
		If the problem continues, contact Enterasys Networks
		for technical support.
Port(s) goes into	Loop condition detected.	Verify that Spanning Tree is enabled. Refer to the
standby for no		Enterasys Matrix DFE-Diamond/Platinum Series
apparent reason.		Configuration Guide for the instructions to set the type
		of STA.
		Review the network design and delete unnecessary
		loops.
		If the problem continues, contact Enterasys Networks
		for technical support.
User parameters	Position of Mode switch (7),	Reenter the lost parameters as necessary. Refer to the
(IP address, device	Persistent Data Reset, was	Enterasys Matrix DFE-Diamond/Platinum Series
and module name,	changed sometime before	Configuration Guide for the instructions to configure
etc.) were lost	either cycling power or	the device.
when the module	pressing the	If the problem continues, contact Enterasys Networks
power was cycled,	OFFLINE/RESET switch,
		for technical support.
the front panel	causing the user-entered
OFFLINE/RESET	parameters to reset to
switch was	factory default settings.
pressed.	Clear Persistent Data that
	was set through Local
	Management.
	The module was moved
	either from slot-to-slot or
	from chassis-to-chassis.

Enterasys NAC Controller Hardware Installation Guide 5-5