Cisco Catalyst - Answered Questions & Fixed Issues


Hi,

Depending on the Supervisor Module model, most likely it's a standard Cisco's "password recovery procedure":

Connect to the console
Reboot the switch (power cycle)
Start pressing Ctrl-C till you get to the BOOTROM
Change boot configuration register to 0x2142 (confreg 0x2142)
Boot the switch. It will ignore confuguration and boot "empty".
Go to "enable mode".
Copy startup configuration to running configuration ("copy start run")
Change boot register back to 0x2102 (conf t -> conf 0x2102)
Write config (write mem)
Reboot

Good luck,

Mike / CCNP, CCDP, CCSP, CCVP

Headset Adapters for office phone system

Cisco Catalyst... | Answered on Jul 19, 2019 | 369 views


Here are a couple of ideas...

Check out ebay item #140197449460

- or-

http://www.cablesandkits.com/cisco-power-supplies-c-63.html

Cisco Catalyst... | Answered on Oct 01, 2018 | 525 views


There is a possibility of IOS® corruption, so better check on that before using warranty, RMA or dumpster/recycling


Error Message SW_VLAN-4-IFS_FAILURE: VLAN manager encountered file operation error: call = [chars] / code = [dec] ([chars]) / bytes transferred = [dec].


Explanation This message means that the VLAN manager received an unexpected error return from an IOS file system (IFS) call while reading the VLAN database. The first [chars] is the IFS operation that failed. The first [dec] is the error code, the second [chars] is the textual interpretation of the error code, and the second [dec] is the number of bytes transferred.


Recommended Action Copy the error message exactly as it appears on the console or in the system log, call your Cisco technical support representative, and provide the representative with the gathered information.

Cisco Catalyst... | Answered on Feb 05, 2017 | 558 views


flash_init first, then load_helper should work.

Cisco Catalyst... | Answered on May 13, 2017 | 2,057 views


http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/15-0_1_se/release/notes/OL25302.html

Cisco Catalyst... | Answered on Apr 30, 2015 | 545 views


Yes they do support stacking. Here is the info sheet.


Cisco Catalyst 2960 Series Switches Products Services

Cisco Catalyst... | Answered on Mar 06, 2015 | 328 views


Reset to default.

Cisco Catalyst... | Answered on Mar 06, 2015 | 254 views


just type in global configuration mode

(config) no username username (name of existing user)

Cisco Catalyst... | Answered on Feb 10, 2015 | 91 views


No. WS C2960S 48FPS uses the Universal image, but no license is required. The feature is bound to the hardware model type and cannot be changed. For convenience, a single software image is used for all Cisco Catalyst 2960-S Series Switches, regardless of whether they are a LAN Base or LAN Lite model.

Cisco Catalyst... | Answered on Jan 20, 2015 | 162 views


Hi

I have checked and no data found for that S/N

Thanks

Cisco Catalyst... | Answered on Nov 26, 2014 | 223 views


Hi

Instructions
telnet to the IP address of the Cisco switch
Enter the telnet access password for the Cisco swict when requested, and then the "Enter" key.
Type "enable" at the command prompt, and then the "Enter" key.
Enter the Privileged Exec password when requested at the command prompt, and then the "Enter" key. Then enter "configuration terminal" at the command prompt, and then the "Enter" key.
Type "interface fastethernet0/1," replacing the "fastethernet0/1" with the name of an interface in which you wish to enable PoE, and then the "Enter" key. Then, while in interface configuration mode, type "power inline auto" and then the "Enter" key. Repeat this step for each interface in which PoE is required.
Type "end" at the command prompt and then the "Enter" key, copy running-config
Below is some commands to run, I don't have any power on the interface but this will show you if this is working...
SW1#sh power inline fastEthernet 0/1
Available:360(w) Used:0(w) Remaining:360(w)
Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Fa0/1 auto off 0.0 n/a n/a 15.4
Run this command to see the interface is up.....
SW1# sh interface fastEthernet 0/1 ' in protocol
FastEthernet0/1 is up, line protocol is up (connected)
SW1#sh cdp interface fastEthernet 0/1
FastEthernet0/1 is up, line protocol is up
Encapsulation ARPA
Sending CDP packets every 60 seconds
Holdtime is 180 seconds


Thanks

Cisco Catalyst... | Answered on Nov 26, 2014 | 123 views


Fuel Temperature Sensor "B" Circuit High Input
- Faulty Fuel Temperature Sensor
- Fuel Temperature Sensor harness is open or shorted
- Fuel Temperature Sensor circuit poor electrical connection

Cisco Catalyst... | Answered on Aug 29, 2014 | 53 views


Asuming you have a sup720,
in the enable mode do a
erase const_nvram:
this is where the file vlan.dat is.
deleting that file is not allowed so eraseing the filesystem is the only option.

Cisco Catalyst... | Answered on Aug 25, 2014 | 170 views


Keep your 4-port and just purchase a netgear or linksys 8-port switch. This will increase your port count to 12, but you burn two ports on uplinking. If you need more ports, just get a 16-port switch then. I believe this will be the most cost effective solution.

Cisco Catalyst... | Answered on Jun 03, 2014 | 84 views


shut down the port and then no shut the port.

Cisco Catalyst... | Answered on Sep 08, 2014 | 349 views


You can only reset password this way:
1.
Attach a terminal or PC with terminal emulation (for example, Hyper Terminal) to the console port of the switch.
Use the following terminal settings:
  • Bits per second (baud): 9600
  • Data bits: 8
  • Parity: None
  • Stop bits: 1
  • Flow Control: Xon/Xoff
2.Unplug the power cable.
3. Hold down the mode button located on the left side of the front panel, while you reconnect the power cable to the switch
4. Release the Mode button when the SYST LED blinks amber and then turns solid green. When you release the Mode button, the SYST LED blinks green.
5. switch: flash_init
6. switch: load_helper
7. switch: dir flash:
8. switch: rename flash:config.text flash:config.old
Rename config.text to config.old. In that file the password is stored.
9. switch: boot
10. Enter "n" at the prompt to abort the initial configuration dialog
11. Type en to enable
12. Switch#rename flash:config.old flash:config.text
13. Switch#copy flash:config.text system:running-config
14. Overwrite the current passwords:
conf term
enable secret <new pass>
enable password <new pass>
line vty 0 15
password <new pass>
login
line con 0
password <new pass>

15. write memory
16. copy run start

Cisco Catalyst... | Answered on Jun 20, 2014 | 192 views


Too much heat.

Cisco Catalyst... | Answered on Mar 30, 2014 | 77 views


Hi,
This means that switch is in boot mode, In order to boot it use "dir flash:" and see if you can find a valid image in it. if it is there, use "boot flash:<image name>" to boot up the switch. in case there is no image we need to do an xmodem to recover the switch, we need to have a console cable connected in the console port and an image for 3560 on your system, Issue the command " copy xmodem:<image name> flash:<image name> " after this go to transfer file in the menu of hyperterminal and choose " send a file " browse the file and select protocol as "xmodem" this will take around 4 hours to copy and then you just need to enter " boot" and switch will be up.

Regards,

Harshit

Cisco Catalyst... | Answered on Mar 12, 2014 | 622 views


Try this http://tools.cisco.com/search/results/display?url=http%3a%2f%2fwww.cisco.com%2fc%2fdam%2fen%2fus%2fproducts%2fcollateral%2fswitches%2fnexus-4000-series-switches%2f6701_catswitch_guide_v7_r5.pdf&pos=5&query=WS-C3524-XL-EN

Cisco Catalyst®... | Answered on Mar 09, 2014 | 121 views

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