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Lab: Configuring back-to-back Serial connections
Lab Objective:
The objective of this lab exercise is to configure back-to-back Serial interfaces between two Cisco routers. By default, router Serial interfaces receive their clocking information from an external device such as a CSU/DSU.
Lab Purpose:
Back-to-back Serial interface configuration is a fundamental skill. Because routers typically receive clocking from an external device such as a CSU/DSU, it is imperative to understand how to bring up a back-to-back Serial connection between two routers to set up your home lab, for example. As a Cisco engineer, as well as in the Cisco CCNA exam, you will be expected to know how to configure back-to-back Serial connections.
Certification Level:
This lab is suitable for both CCENT and CCNA certification exam preparation
Lab Difficulty:
This lab has a difficulty rating of 3/10
Readiness Assessment:
When you are ready for your certification exam, you should complete this lab in no more than 10 minutes
Lab Topology:
Please use the following topology to complete this lab exercise:
Task 1:
Configure the hostnames on routers R1 and R2 as illustrated in the topology.
Task 2:
Enable the Serial interfaces on R1 and R2. The Serial0/0 interface on R2 is identified as the DCE in the topology. Use the appropriate show command to verify that this interface is indeed the DCE.
Task 3:
Configure the DCE interface on R2 to providing clocking to R1. The clock speed should be 256Kbps. Remember that 1Kbps = 1000bps. Verify that R1 receives clocking information from R2.
Task 4:
Configure IP addressing on R1 and R2 Serial0/0 interfaces as illustrated in the topology.
Task 5:
Verify your interface status and ping between R1 and R2 to validate connectivity.
The objective of this lab exercise is to configure back-to-back Serial interfaces between two Cisco routers. By default, router Serial interfaces receive their clocking information from an external device such as a CSU/DSU.
Lab Purpose:
Back-to-back Serial interface configuration is a fundamental skill. Because routers typically receive clocking from an external device such as a CSU/DSU, it is imperative to understand how to bring up a back-to-back Serial connection between two routers to set up your home lab, for example. As a Cisco engineer, as well as in the Cisco CCNA exam, you will be expected to know how to configure back-to-back Serial connections.
Certification Level:
This lab is suitable for both CCENT and CCNA certification exam preparation
Lab Difficulty:
This lab has a difficulty rating of 3/10
Readiness Assessment:
When you are ready for your certification exam, you should complete this lab in no more than 10 minutes
Lab Topology:
Please use the following topology to complete this lab exercise:
Task 1:
Configure the hostnames on routers R1 and R2 as illustrated in the topology.
Task 2:
Enable the Serial interfaces on R1 and R2. The Serial0/0 interface on R2 is identified as the DCE in the topology. Use the appropriate show command to verify that this interface is indeed the DCE.
Task 3:
Configure the DCE interface on R2 to providing clocking to R1. The clock speed should be 256Kbps. Remember that 1Kbps = 1000bps. Verify that R1 receives clocking information from R2.
Task 4:
Configure IP addressing on R1 and R2 Serial0/0 interfaces as illustrated in the topology.
Task 5:
Verify your interface status and ping between R1 and R2 to validate connectivity.