Use Cisco 650-968 Discovery Protocol and show commands to verify the Layer 1 and Layer 2

Physical Topology


Required Resources
Task 1: Assign Responsibility for  650-968

Each Device (optional) Step 1: Review the lab topology together with your team members. Step 2: Assign responsibility for each device to a team member.
Device Responsibilities Table Device Description Responsible Team Member
Task 2: Load the Baseline Device Configuration Files
ip host name ip-addr
Step 1: Verify the existence and location of the lab configuration files.
show flash cd dir


show flash
ALS1#show flash:
Directory of flash:/
3 -rwx 916 Mar 1 1993 00:00:29 +00:00 vlan.dat 619 -rwx 6582 Mar 1 1993 00:10:09 +00:00 config.text 6 drwx 192 Oct 9 2009 13:00:50 +00:00 c2960-lanbasek9-mz.122-46.SE.bin 622 drwx 128 Oct 9 2009 13:03:05 +00:00 tshoot
ALS1#cd tshoot ALS1#dir Directory of flash:/tshoot/
623 -rwx 6582 Oct 9 2009 13:03:05 +00:00 Lab31-ALS1-Base-Cfg.txt 624 -rwx 6578 Oct 9 2009 12:32:48 +00:00 Lab41-ALS1-TT-A-Cfg.txt <output omitted>
Alternatively, you can see the contents of the directory by specifying its name using the dir command. For example:
ALS1#dir flash:/tshoot Directory of flash:/tshoot/
5 -rwx 6515 Oct 9 2009 14:39:42 +00:00 Lab31-ALS1-Base-Cfg.txt

show flash

R1#show flash: -#—length——-date/time——path
1 38266988 Sep 24 2009 17:47:14 c1841-advipservicesk9-mz.124-24.T1.bin
2 0 Oct 09 2009 12:32:06 tshoot
3 2288 Oct 09 2009 12:32:48 tshoot/Lab31-R1-Base-Cfg.txt

<output omitted>
Step 2: Erase the startup config from NVRAM.
ALS1#erase startup-config
Erasing the nvram filesystem will remove all configuration files! Continue?
Erase of nvram: complete

Step 3: Delete the VLAN database from flash (switches only).
ALS1#delete vlan.dat
Delete flash:vlan.dat? [confirm]
Step 4: Reload the device, but do not save the system configuration if prompted.
System configuration has been modified. Save? [yes/no]: no
Proceed with reload? [confirm]

*Oct 1 00:29:28.704: %SYS-5-RELOAD: Reload requested by console. Reload Reason: Reload command.
Step 5: When the device restarts, do not enter the initial configuration dialog, but terminate autoinstall if prompted.
Press RETURN to get started!
—System Configuration Dialog —Would you like to enter the initial configuration dialog? [yes/no]: no Would you like to terminate autoinstall? [yes]: Enter
Step 6: Copy the specified lab device configuration file from flash to the running config.
Switch>enable Switch#copy flash:/tshoot/Lab31-ALS1-Base-Cfg.txt running-config Destination filename [running-config]? Enter

Step 7: Copy the running config to the startup config.
ALS1#copy running-config startup-config
Building configuration…


admin enable

Step 8: Repeat Steps 1 through 7 for the other devices in the network.
Step 9: Configure the PCs.
Step 10: Test basic network connectivity between devices.
Note: Task 3: Analyze and Document the Physical Lab Topology Note:
Step 1: Review the physical topology diagram on page 1 of the lab.
connections of the lab topology.

show cdp
Device Links Table
From Device Interface To Device Interface Layer 1 and 2 Features and Protocols Used
From Device Interface To Device Interface Layer 1 and 2 Features and Protocols Used
Step 3: Map the VLANs used in the lab to the devices in the diagram.
VLAN Definition Table
VLAN # Name Description VLAN Members
Step 4: Analyze spanning tree for the Layer 2 switched domain.
Step 5: Diagram the spanning tree for VLAN 10.

Student Notes
Task 4: Analyze and Document the Logical Cisco 650-968 Exam Lab Topology Step 1: Review the logical lab diagram and the subnets.