1 Byte = 8 bit
1 Mb / 8 = 125 KByte
10 Mbit / 8 = 1,25 MByte
100 Mb / 8 = 12,5 MByte
#sh ver
#sh flash:
config.text
.bin (system)
vlan.dat (DB vlan)
There are several methods to choose from in order to backup and
restore a configuration:
TFTP Server :TFTPD32
FTP Server : Quick ‘n Easy FTP
Server 3.2 Lite
-
Use a TFTP server
-
Use an FTP server
-
Use a Terminal Emulation
Program
-
Automatic Backup of Configuration using the Kron
Method
-
Backup Configuration to a TFTP
Server
Level 1
http://it.wikipedia.org/wiki/Gigabit_EthernetLevel 2
Spanning-Tree Protocol - Cisco Discovery Protocol - VLAN Trunking Protocol
•The Spanning-Tree Protocol (STP) must run properly so that each customer VLAN builds a spanning tree that includes the local site and all remote customer sites across the service-provider infrastructure.Introduction
Requirements
Components Used
Conventions
Background Theory
Network Diagram
Command Summary
Example:
http://www.netsetup.it/networking-livello2/spanning-tree
Now - today is usedRapid Spanning Tree Protocol•The Cisco Discovery Protocol (CDP) must discover neighboring Cisco devices from local and remote customer VLAN sites.
#show cdp neighbors
Introduction
Prerequisites
Requirements
Components Used
Conventions
Configure Cisco Discovery Protocol
Enable/Disable CDP on a Cisco IOS Device
Enable/Disable CDP on an Interface
Known Issues on CDP
CDP Can Consume All Router Memory•The VLAN Trunking Protocol (VTP) must provide consistent VLAN configuration throughout all sites in a customer network.
VTP - VLAN Trunking Protocol ( NOT USED )
