Cabletron Systems ZX-250 Performing Hardware Maintenance, Required Tools, Internal Components

Performing Hardware Maintenance Switch Administration

If a system failure occurs while the core dump feature is enabled, the SmartCell ZX-250 console appears similar to the example below. The SmartCell ZX-250 then begins sending images of its memory to the core dump files on the TFTP server.

Illegal access. Bus				Error.
IP: e0103288			PFP: e04be080
r0(pfp): e04be040				r1(sp): e04be0c0				r2(rip): e00dd7dc
r3	: 00000000			r4	: e00f8f0c			r5	: e0409f10
r6	: 00000003			r7	: e00f8f0c			r8	: e0409f40
r9	: 00000003			r10	: 00000030			r11	: e00f8f0f
r12	: 00000008			r13	: 00000001			r14	: e00d22f0
r15	: 00000008
d2000000:		Core Dump
Common DRAM dumped to /tftpboot/bobr/core_cmn
CPU DRAM dumped to /tftpboot/bobr/core_cpu
ffffffff ffffffff ffffffff ffffffff						*			*
d2000010:		ffffffff		ffffffff ffffffff		ffffffff	*	................	*
d2000020:		ffffffff		ffffffff ffffffff		ffffffff	*	................	*
d2000030:		ffffffff		ffffffff ffffffff		ffffffff	*	................	*
d2000040:		ffffffff		ffffffff ffffffff		ffffffff	*	................	*
d2000050:		ffffffff		ffffffff ffffffff		ffffffff	*	................	*
d2000060:		ffffffff		ffffffff ffffffff		ffffffff	*	................	*
d2000070:		ffffffff		ffffffff ffffffff		ffffffff	*	................	*
d2000080:		ffffffff		ffffffff ffffffff		ffffffff	*	................	*
d2000090:		ffff

SmartCell ZX Start-up Code

Cabletron Systems Inc.

Copy the information displayed on the console and send it to your Cabletron customer support representative along with the core dump files.

4.9PERFORMING HARDWARE MAINTENANCE

This section gives generic instructions about how to access all user upgradable and replaceable components in the SmartCell ZX-250 ATM switch.

4.9.1Required Tools

UNumber 1 Phillips head screw driver

USmall flat-blade screw driver

UMedium flat-blade screw driver

UCabletron-approved ESD grounding device (such as a wrist strap)

4.9.2Internal Components

Figure 4-5is a diagram of the internal components common to the SmartCell ZX-250 family of switches. The five major components of the ZX-250 are

UCPU board

UMain Switch Module

UI/O modules (at least two)

4-32 SmartCell ZX-250 User Guide