Configuring OSPF
OSPF Application Example
OmniSwitch AOS Release 7 Advanced Routing Configuration Guide
March 2011
page 1-33
Step 1: Prepare the Routers
The first step is to create the VLANs on each router, add an IP interface to the VLAN, assign a port to the
VLAN, and assign a router identification number to the routers. For the backbone, the network design in
this case uses slot 2, port 1 as the egress port and slot 2, port 2 as ingress port on each router. Router 1
connects to Router 2, Router 2 connects to Router 3, and Router 3 connects to Router 1 using 10/100
Ethernet cables.
Note.
The ports will be statically assigned to the router, as a VLAN must have a physical port assigned to
it in order for the router port to function. However, the router could be set up in such a way that mobile
ports are dynamically assigned to VLANs using VLAN rules. See the chapter titled “Defining VLAN
Rules” in the
OmniSwitch AOS Release 7 Network Configuration Guide.
The commands setting up VLANs are shown below:
Router 1
(using ports 2/1 and 2/2 for the backbone, and ports 2/3-5 for end devices):
-> vlan 31
-> ip interface vlan-31 vlan 31 address 31.0.0.1 mask 255.0.0.0
-> vlan 31 members port 2/1 untagged
-> vlan 12
-> ip interface vlan-12 vlan 12 address 12.0.0.1 mask 255.0.0.0
-> vlan 12 members port 2/2 untagged
-> vlan 10
-> ip interface vlan-10 vlan 10 address 10.0.0.1 mask 255.0.0.0
-> vlan 10 members port 2/3-5 untagged
-> ip router router-id 1.1.1.1
These commands created VLANs 31, 12, and 10.
•
VLAN 31 handles the backbone connection from Router 1 to Router 3, using the IP router port
31.0.0.1 and physical port 2/1.
•
VLAN 12 handles the backbone connection from Router 1 to Router 2, using the IP router port
12.0.0.1 and physical port 2/2.
•
VLAN 10 handles the device connections to Router 1, using the IP router port 10.0.0.1 and physical
ports 2/3-5. More ports could be added at a later time if necessary.
The router was assigned the Router ID of 1.1.1.1.
Router 2
(using ports 2/1 and 2/2 for the backbone, and ports 2/3-5 for end devices):
-> vlan 12
-> ip interface vlan-12 vlan 12 address 12.0.0.2 mask 255.0.0.0
-> vlan 12 members port 2/1 untagged
-> vlan 23
-> ip interface vlan-23 vlan 23 address 23.0.0.2 mask 255.0.0.0
-> vlan 23 members port 2/2 untagged
-> vlan 20
-> ip interface vlan-20 vlan 20 address 20.0.0.2 mask 255.0.0.0
-> vlan 20 members port 2/3-5 untagged
