Cisco Cisco Nexus 7000 4-Slot Switch Troubleshooting Guide

Contributed by Ivan Shirshin and Naveen Venkateshaiah, Cisco TAC
Engineers.
May 15, 2015

Introduction
Problem: SpineControlBus Failure
     Solution
Problem: Bad Blocks Found on NVRAM
     Solution
Problem: Module 9 Compact Flash Failure
     Solution
Problem: N7K−M132XP−12 Linecard PortLoopback Test Failure
     Solution
Problem: N7K−M132XP−12 Linecard MODULE−4−MOD_WARNING
     Solution
Problem: N7K−M224XP−23L chico serdes sync loss Error
     Solution
Problem: N7K−F248XP−25 PrimaryBootROM and SecondaryBootROM Test Failures
     Solution
Problem: Temperature Sensor Failure
     Solution
Problem: Xbar Error/C7010−FAB−1 in Power Down State
     Solution
Problem: N7K−C7010−FAN−F Failed Fan Module
     Solution
Problem: %PLATFORM−2−PS_CAPACITY_CHANGE Power Supply Alarm
     Solution
Problem: %PLATFORM−5−PS_STATUS: PowerSupply X PS_FAIL Alarm
     Solution
Problem: Power Supply Issue on FEX
     Solution
Problem: N7K−AC−6.0KW Power Supplies are Reported as Fail
     Solution
Problem: Software Packet Drops
     Solution
Problem: USER−2−SYSTEM_MSG FIPS Self−test Failure System Error
     Solution

This document provides a brief explanation and solutions for common hardware and architecture issues for
Cisco Nexus 7000 Series switches that run Cisco NX−OS system software.

Note: The exact format of the syslog and error messages that this document describes can vary slightly. The