Cisco Problem and Solution

  PID: UCS-FI-6296UP Issue: need to upgrade to ver 4.1(1d)A New unit have version 2.1(3a) According to upgrade matrix, it needs to upgrade to 2.2(8m) first Via GUI While login in, having issue with authentication   Java issue Login Error: java.io.IOException: Invalid Http response Login Error: java.io.IOException: Server returned HTTP response code: 400 for URL ( Java issue ) Workaround: Rollback Java 7 to Update 25 or lower Uninstall others java version Login is working now Upgrading to 2.2(8m) Upload, activated Upgrading ver 4.1(1d)A Upload, activated Erase config Rack4-A# show version System version: 2.0(1w) Rack4-A# connect local-mgmt Cisco Nexus Operating System (NX-OS) Software TAC support: http://www.cisco.com/tac Copyright (c) 2002-2012, Cisco Systems, Inc. All rights reserved. The copyrights to certain works contained in this software are owned by other third parties and used and distributed under license. Certain components of this software

  Problem: trying to upgrade the stack switch C9300, but it failed because Switch 2 not enough space Front panel components of a Cisco Catalyst 9300L Series switch Figure 4.  C9300L-48P-4X Switch Front Panel 1 Beacon LED (UID button) 5 USB Type A storage port 2 Mode button 6 10/100/1000 PoE+ ports 3 Status LEDs 7 Fixed uplink ports 4 USB mini-Type B (console) port - - Solution:  To run on the clean up on the master switch  step1: make sure you back up the new IOS first, eg copy it to usb step2: run command to do clean up, it will remove un use bin and packages files             Switch# install remove inactive Step3: copy back the new ios from usb to flash Step4:  Switch# install add file flash:cat9k_lite_iosxe.16.09.02.SPA.bin activate commit - Switches will be upgraded and reboot

  Cisco Catalyst 3750V2-48PS Switch Problem: Switch 3 of the stack  is faulty ( dead ) Solution: Replace switch 3 after switch 3 replaced and stack cable connected from master switch it show switch 3 firmware mismatch  ( master switch IOS is different with new switch IOS ) #show switch detail master switch can access switch 3 flash, dir flash3: for example flash3 contain: directory c3750-ipbase-mz.122-35.SE5 we need to delete the directory and the file in it using /force and /recursive # delete /f /r flash2:c3750-ipbase-mz.122-35.SE5 after deleted copy IOS from the master to flash3 for example copy flash1:c3750-ipbasek9-mz-122-55.SE1.bin flash3: change boot var for switch 3 goto global config (config)#boot system switch 3 flash: c3750-ipbasek9-mz-122-55.SE1.bin #write mem #reload slot 3 switch 3 will reload and synch with other switch Task completed

Cisco 4331, user credential is not working and password recovery disabled Step by step solution to recover the access to the router  First, make sure you have a configuration backup because this following step will erase all the config Console to the router, using Terra Term Power cycle System Bootstrap, Version 11.1(4675) [kluk 143], INTERIM SOFTWARE Copyright (c) 1994-1996 by cisco Systems, Inc. C3600 processor with 32768 Kbytes of main memory Main memory is configured to 64 bit mode with parity disabled PASSWORD RECOVERY FUNCTIONALITY IS DISABLED program load complete, entry point: 0x80008000, size: 0x2733f4 When I see the word "Password Recovery Functionality is Disabled" Send CTRL Break  It will prompt a question to Reset to factory default PASSWORD RECOVERY IS DISABLED. Do you want to reset the router to factory default configuration and proceed [y/n] ? y Reset router configuration to factory default. It should boot to router prompt Now, you can re-configure it again 

After replacing UCSC-C220-M5SX, it does not boot, it boots to shell After replacing UCSC-C220-M5SX it boots to EFI shell Resolution step: on the BIOS, boot option I set to Boot Mode Legacy but on the Boot Option, it does not appear Local HDD Go to CIMC Configuring the Server Boot Order Before You Begin You must log in as a user with admin privileges to configure server boot order. Procedure Step 1    In the  Navigation  pane, click the  Server  tab. Step 2    On the  Server  tab, click  BIOS . The BIOS page appears. Step 3    In the Actions area, click  Configure Boot Order . A dialog box with boot order instructions appears. Step 4    Review the instructions, and then click  OK . The  Configure Boot Order  dialog box displays. Step 5    In the  Configure Boot Order  dialog box, update the following properties: Name Description Device Types  table The server boot options. You can select one or more of the following: HDD —Hard disk drive FDD —Floppy disk drive CDROM —Bootable CD-ROM PXE