Cisco Catalyst - Recent Questions, Troubleshooting & Support
Reset password Catalyst 4006 Ethernet Switch
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
Fails post test:
POST: Inline Power
This is usually caused by a bad async controller where dc voltage is not supplied to the ports. There is nothing you can fix to make it pass the check.
Cisco 2960 power supply
The Cisco 2960 has a life time warranty. Contact the seller and they should be able to get the switch exchanged at no cost.
9/12/2018 11:04:18 AM •
Cisco Rf...
•
Answered
on Sep 12, 2018
Real diffrerent between Router & L3 switch
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.
!!! WARNING: The switch is not usable !!! 3560-24PS
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.
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FOC12085G1Z
Hi
I have checked and no data found for that S/N
Thanks
How to switch on poe function at switch port
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
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