CISCO OS
The name of Cisco Operating System is Cisco IOS (Internetwork Operating System). This OS runs on all Cisco routers and switches. IOS is a command line interface. The latest version of Cisco IOS is 15.4. If anyone wants to access IOS then we have to access it through console port. You will learn more about the mechanism of IOS in the future posts.
Note: you will learn more about subnetting in the next post.
Subnetting
When we divide a subnet into smaller networks those networks are called subnets. The art of dividing a network into subnets is called subnetting.Note: you will learn more about subnetting in the next post.
LOOPBACK ADDRESS
A Loopback address is an address that allows network engineers to test an IP without worrying of corrupted or broken hardwares or drivers.The range of loopback address is from 127.0.0.1 to 127.255.255.255. This is the reason that we cannot assign this IP range to any node.
Speed Of Ethernet
The first Ethernet wire was built in the early 90's and it was named as category 1. The latest Ethernet wire which we use in our pc nowadays is called category 6E. The speed of category 6E Ethernet Wires are as follows :- Ethernet = 10 mbps
- Fast Ethernet = 100 mbps
- Giga Ethernet = 1000mbps
- 10 Giga ethernet = 10,000 mbps
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