Ccna routing and Switching Complete Study Guide

DCE

Clocking provided by CSU/DSU to DTE device

Corp

S0/0

CSU/DSU

CSU/DSU

SF

We can easily configure the routers with a basic IP address and then enable the interface. 

Assuming the link to the ISP is up, the routers will start communicating using the default 

HDLC encapsulation. Let’s take a look at the Corp router configuration so you can see just 

how easy this can be:

Corp(config)#

int s0/0

Corp(config-if)#

ip address 172.16.10.1 255.255.255.252

Corp(config-if)#

no shut

 

Corp#

sh int s0/0

---

898

 

Chapter 21 

■

  Wide Area Networks

Serial0/0 is up, line protocol is up

  Hardware is PowerQUICC Serial

  Internet address is 172.16.10.1/30

  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,

     reliability 255/255, txload 1/255, rxload 1/255