Cisco single-Arm routing technology

Cisco single-arm routing

Demand:

The VLAN is terminated through a three-layer interchange.

Ideas:

1. Create a VLAN

2. VLAN Partitioning is correct

3. Creating sub-interfaces

4. dividing sub-interfaces to VLANs

5. Configure the desired relay port

Topology:

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Steps:

1. Partitioning VLANs on SW1, SW2

SW1 (config) #vlan 10

SW1 (Config-vlan) #vlan 20

SW2 (config) #vlan 10

SW2 (Config-vlan) #vlan 20

View the VLAN under the current switch with show Vlan-s b

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2. Dividing the interface and establishing the trunk port

SW1 (config) #int F1/1

SW1 (config-if) #switchport Access VLAN 10

SW1 (config-if) #int F1/2

SW1 (config-if) #switchport Access VLAN 20

SW2 (config) #int F1/1

SW2 (config-if) #switchport Access VLAN 10

SW2 (config-if) #int F1/2

SW2 (config-if) #switchport Access VLAN 20

Check:

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SW1 (config-if) #int F1/15

SW1 (config-if) #switchport mode trunk //Create a relay port

SW2 (config-if) #int F1/15

SW2 (config-if) #switchport mode trunk

3. Configure the gateway for two switches:

SW1 (config) #ip default-gateway 192.168.10.1 //Configure switch default gateway

SW1 (config) #int vlan 1

SW1 (config-if) #ip add 192.168.10.10 255.255.255.0       

SW1 (config-if) #no shut

SW2 (config-if) #int VLAN 1

SW2 (config-if) #ip add 192.168.10.20 255.255.255.0

SW2 (config-if) #no shut

SW2 (config-if) #ex

SW2 (config) #ip Default-gateway 192.168.10.1

4. On the router creating sub-interfaces

R1 (config) #int f0/0.1

R1 (config-subif) #encapsulation dot1q //Define Encapsulation protocol type

R1 (config-subif) #ip add 192.168.1.1 255.255.255.0

R1 (config-subif) #no shut

R1 (config-subif) #int f0/0.2

R1 (config-subif) #encapsulation dot1q 20

R1 (config-subif) #ip add 192.168.2.1 255.255.255.0

R1 (config-subif) #no shut

R1 (config-subif) #int f0/0.10

R1 (config-subif) #encapsulation dot1q 1

R1 (config-subif) #ip add 192.168.10.1 255.255.255.0

R1 (config-subif) #no shut

Note: The gateway where the configured PC belongs to which VLAN the sub-interface is created should also be the gateway for the PC

5. Configure the IP of the PC

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6. Verification

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The experiment is over and successful.

This article is from the "share some personal experience" blog, be sure to keep this source http://hyang.blog.51cto.com/9415026/1587084

Cisco single-Arm routing technology