L3 switch comprehensive experiment

 

Step 1: Configure The VTP domain and create a VLAN

3550:

3550 # vlan database

3550 (vlan) # vtp server

3550 (vlan) # vtp domain sy

3550 (vlan) # vtp password cisco

3550 (vlan) # vlan 2

3550 (vlan) # vlan 3

3550 (vlan) # vtp pruning

3550 (vlan) # exit

 

SW1:

SW1 # vlan database

SW1 (vlan) # vtp client

SW1 (vlan) # vtp domain sy

SW1 (vlan) # vtp password cisco

SW1 (vlan) # exit

 

Step 2: Set Relay

3550:

3550 (config) # int f0/0

3550 (config-if) # switchport trunk encapsulation dot1q

3550 (config-if) # switchport mode trunk

3550 (config-if) # end

3550 # show vtp status

VTP Version: 2

Configuration Revision: 2

Maximum VLANs supported locally: 256

Number of existing VLANs: 7

VTP Operating Mode: Server

VTP Domain Name: sy

VTP Pruning Mode: Enabled

VTP V2 Mode: Disabled

VTP Traps Generation: Disabled

 

SW1:

SW1 (config) # int f0/15

SW1 (config-if) # switchport trunk encapsulation dot1q

SW1 (config-if) # switchport mode trunk

SW1 (config-if) # end

SW1 # show vtp status

VTP Version: 2

Configuration Revision: 2

Maximum VLANs supported locally: 256

Number of existing VLANs: 7

VTP Operating Mode: Client

VTP Domain Name: sy

VTP Pruning Mode: Enabled

VTP V2 Mode: Disabled

VTP Traps Generation: Disabled

 

Step 3: add the port to the VLAN

SW1:

SW1 # conf t

SW1 (config) # int f0/1

SW1 (config-if) # switchport mode access

SW1 (config-if) # switchport access vlan 2

SW1 (config-if) # exit

SW1 (config) # int f0/2

SW1 (config-if) # switchport mode access

SW1 (config-if) # switchport access vlan 3

SW1 (config-if) # end

 

Step 4: configure Layer-3 switches to achieve interconnection between VLANs

3550

3550 # conf t

3550 (config) # ip routing

3550 (config) # int vlan 2

3550 (config-if) # ip address 192.168.2.1 255.255.255.0

3550 (config-if) # no shutdown

3550 (config-if) # exit

3550 (config) # int vlan 3

3550 (config-if) # ip address 192.168.3.1 255.255.255.0

3550 (config-if) # no shutdown

3550 (config-if) # end

 

Step 5: client Verification

PC1 # ping 192.168.3.3

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.3.3, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 216/284/336 MS

PC2 # ping 192.168.2.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.2.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 144/211/276 MS

Step 6: Enable the routing function on the layer-3 Switch

3550:

3550 (config) # int f0/1

3550 (config-if) # no switchport

3550 (config-if) # ip address 172.16.1.1 255.255.255.0

3550 (config-if) # no shutdown

3550 (config-if) # exit

3550 (config) # int f0/2

3550 (config-if) # no switchport

3550 (config-if) # ip address 172.16.2.1 255.255.255.0

3550 (config-if) # no shutdown

3550 (config-if) # exit

 

Step 7: Configure two routers and enable HSRP

R1:

R1 (config )#

R1 (config) # int f0/0

R1 (config-if) # no ip address

R1 (config-if) # ip address 172.16.1.2 255.255.255.0

R1 (config-if) # no shutdown

R1 (config-if) # speed100

R1 (config-if) # duplex full

R1 (config-if) # exit

R1 (config) # int f1/0

R1 (config-if) # ip address 10.0.0.254 255.255.255.0

R1 (config-if) # no shutdown

R1 (config-if) # speed100

R1 (config-if) # duplex full

R1 (config-if) # standby 1 ip 10.0.0.252

R1 (config-if) # standby 1 priority 200

R1 (config-if) # standby 1 preempt

R1 (config-if) # standby 1 track f0/0 10

R1 (config-if) # end

R1 # show standby brief

P indicates configured to preempt.

|

Interface Grp Prio P State Active Standby Virtual IP

Fa1/0 1 200 P Active local 10.0.0.253 10.0.0.252

 

 

R2:

R2 # conf t

R2 (config) # int f0/0

R2 (config-if) # ip address 172.16.2.2 255.255.255.0

R2 (config-if) # no shutdown

R2 (config-if) # speed100

R2 (config-if) # duplex full

R2 (config-if) # exit

R2 (config) # int f1/0

R2 (config-if) # ip address 10.0.0.253 255.255.255.0

R2 (config-if) # no shutdown

R2 (config-if) # speed100

R2 (config-if) # duplex full

R2 (config-if) # standby 1 ip 10.0.0.252

R2 (config-if) # end

 

Step 8: configure the Dynamic Routing Protocol

3550:

3550 (config) # router ospf 1

3550 (config-router) # network 192.168.2.0 0.0.255 area 0

3550 (config-router) # network 192.168.3.0 0.0.255 area 0

3550 (config-router) # network 172.16.1.0 0.0.255 area 0

3550 (config-router) # network 172.16.2.0 0.0.255 area 0

3550 (config-router) # end

 

R1:

R1 (config) # router ospf 2

R1 (config-router) # network 172.16.1.0 0.0.255 area 0

R1 (config-router) # network 10.0.0.0 0.0.255 are 0

R1 (config-router) # end

 

R2:

R2 (config) # router ospf 3

R2 (config-router) # network 172.16.2.0 0.0.255 area 0

R2 (config-router) # network 10.0.0.0 0.0.0.255 area 0

R2 (config-router) # end

R2 # show ip route

Gateway of last resort is not set

172.16.0.0/24 is subnetted, 2 subnets

O 172.16.1.0 [110/2] via 172.16.2.1, 00:03:39, FastEthernet0/0

[110/2] via 10.0.0.254, 00:03:39, FastEthernet1/0

C 172.16.2.0 is directly connected, FastEthernet0/0

10.0.0.0/24 is subnetted, 1 subnets

C 10.0.0.0 is directly connected, FastEthernet1/0

O 192.168.2.0/24 [110/2] via 172.16.2.1, 00:03:39, FastEthernet0/0

O 192.168.3.0/24 [110/2] via 172.16.2.1, 00:03:39, FastEthernet0/0

 

Step 9: client Verification

PC3 # ping 192.168.2.2,

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.2.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 288/337/432 MS

PC3 # ping 192.168.3.3

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.3.3, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 240/300/336 MS

PC1 # ping 192.168.3.3

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.3.3, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 192/231/288 MS