Introduction This switch really is a Swiss Army knife — but like any multi-tool, it has its quirks. The blade isn’t the longest, it doesn’t do everything perfectly, but it gets the job done and it’s tough. I’ve used these for years now, and they still surprise me with how hardy they are. In this […]
Read More… from CRS112-8P-4S-IN Port security and DHCP Spoofing Protection
The com.fazecast.jSerialComm.SerialPort library in Java is a popular tool for working with serial communication. To listen for a response on a serial port, you’ll need to set up a serial port connection, configure it properly, and then continuously check for incoming data or use event-based mechanisms to listen for responses. Here’s a step-by-step guide to […]
Step 1 Unplug the power cable from the phone and then plug it back in. The phone begins its power up cycle. Step 2 While the phone is powering up, and before the Applications Menu button flashes on and off, press and hold #. Continue to hold # until the message LED on the handset flashes on […]
Step 1: Connect IP phone to PoE switch to Power it on. Step 2: While booting press “application button” which is blue look like globe in-between arrow buttons. Step 3: Then press **1 button to reset IP phone to factory default […]
Step 1 Unplug the phone’s LAN cable. Step 2 Wait 5 seconds. Step 3 Press and hold # button while plugging the phone back in. Step 4 Release the # button when the light on the handset blinks red 2 times Step 5 Press 123456789*0# in sequence.After you press these buttons, the phone goes through the factory reset process.If you press the buttons […]
Press Mode switch until SYST flashes green and then solid orange SYST After consoling into the switch (best practice is to be already cabled up and monitoring the boot to be sure) you will get to a selection where you will want to type flash_init The Steps Initialisation flash flash_init This command removes the configuration […]
How to Reset First pull in a serial cable pull the compact flash card from slot 0 (you may also need to remove slot 1) Turn on the router you will see the following until the router shows rommon> Readonly ROMMON initializedCompact Flash0: Not present All that’s then required to is type the following command […]
After powering down or removing your Cisco C3850 series switch you may want to reset it to defaults especially if you plan to sell or decommission […]