hp2810management
These switchses follow CISCO IOS command

Conneting to HP 2810 Switch for management
- cable rj45-usb

emulating a serial port over usb


Reset switch by pressing reset and clear at the same time releasing the reset and holding the clear
When the "test" led (left bottom) flashes, release the clear


- open a new terminal command window and run   dmesg | grep tty
  this is the result:
  mr@mr-HP-635-Notebook-PC:~$ dmesg | grep tty
[    0.000000] console [tty0] enabled
[26679.088965] usb 3-1: FTDI USB Serial Device converter now attached to ttyUSB0
[26716.310430] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[41754.248952] usb 3-1: FTDI USB Serial Device converter now attached to ttyUSB0
mr@mr-HP-635-Notebook-PC:~$ 


ttyUSB0 is the name usb port connected to my laptop

give rights to the device
 sudo chmod 666 /dev/ttyUSB0
 

run putty 
select serial instead of ssh

device name = /dev/ttyUSB0
speed 9600
bits 8
stop 1
no parity
flow control: xoff/xon

select the connect option on putty

this will open a new black screen. then press enter a couple of times to get connected

will ask for password, since we did a device reset, it will allows to connect, at this point 



we need to learn about VLAN  and truncking

exit will take out of  privilage mode
ena = enable will get me back into pivilage mode