Cisco Catalyst - Recent Questions, Troubleshooting & Support


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


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


The Cisco 2960 has a life time warranty. Contact the seller and they should be able to get the switch exchanged at no cost.

Cisco Rf... | Answered on Sep 12, 2018


Following links might be helpful to you:

http://web.ivy.net/carton/rant/l3-switch/switch-l3intro.html

http://compnetworking.about.com/od/hardwarenetworkgear/f/layer3switches.htm

http://www.e-tutes.com/lesson8/networking_fundamentals_lesson8_3.htm

http://nixcraft.com/computer-networking-internet-broadband/454-difference-between-layer-3-switch-router.html

Thanks for contacting Fixya.

Cisco Catalyst... | Answered on Jun 29, 2018


flash_init first, then load_helper should work.

Cisco Catalyst... | Answered on May 13, 2017


There is a possibility of IOSĀ® 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


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


? You just register for an account. Choose a user name and password. A confirmation will be mailed to your existing email. Then just start loading pictures and looking for friends to add.

Cisco Catalyst... | Answered on Mar 04, 2015


just type in global configuration mode

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

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


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


Hi

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

Thanks

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


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


shut down the port and then no shut the port.

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


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


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


Hello,
I would be glad to help with this.
How many VLANs do you have? How many users per VLAN? Do you have a generic diagram (stripped of all company info) that you can share? Can you send me a "sh tech" from the core switch so I have a better feel for how things are configured?
Thanks!

Cisco Catalyst... | Answered on Jul 09, 2014

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