Configuring ospf for a virtual link on switch b – HP 445946-001 User Manual

Page 151

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OSPF

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8.

Attach the network interface to the backbone.

>> OSPF Area (index) 1 # ../if 1 (Select OSPF menu for IP interface 1)

>> OSPF Interface 1 # aindex 0 (Attach network to backbone index)

>> OSPF Interface 1 # enable (Enable the backbone interface)

9.

Attach the network interface to the transit area.

>> OSPF Interface 1 # ../if 2 (Select OSPF menu for IP interface 2)

>> OSPF Interface 2 # aindex 1 (Attach network to transit area index)

>> OSPF Interface 2 # enable (Enable the transit area interface)

10.

Configure the virtual link.

11.

The

nbr

router ID configured in this step must be the same as the router ID that will be configured for

Switch B in step 2.

>> OSPF Interface 2 # ../virt 1 (Specify a virtual link number)

>> OSPF Virtual Link 1 # aindex 1 (Specify the transit area

for the virtual link)

>> OSPF Virtual Link 1 # nbr 10.10.14.1 (Specify the router ID

of the recipient)

>> OSPF Virtual Link 1 # enable (Enable the virtual link)

12.

Apply and save the configuration changes

>> OSPF Interface 2 # apply (Apply all changes)

>> OSPF Interface 2 # save (Save all changes)

Configuring OSPF for a virtual link on Switch B

1.

Configure IP interfaces on each network that will be attached to OSPF areas.

2.

Two IP interfaces are needed on Switch B: one for the transit area network on 10.10.12.0/24 and

one for the stub area network on 10.10.24.0/24.

>> # /cfg/l3/if 1 (Select menu for IP interface 1)

>> IP Interface 1 # addr 10.10.12.2 (Set IP address

on transit area network)

>> IP Interface 1 # mask 255.255.255.0 (Set IP mask

on transit area network)

>> IP Interface 1 # enable (Enable IP interface 1)

>> IP Interface 1 # ../if 2 (Select menu for IP interface 2)

>> IP Interface 2 # addr 10.10.24.1(Set IP address on stub area network)

>> IP Interface 2 # mask 255.255.255.0(Set IP mask on stub area network)

>> IP Interface 2 # enable (Enable IP interface 2)

3.

Configure the router ID.

4.

A router ID is required when configuring virtual links. This router ID should be the same one specified
as the target virtual neighbor (

nbr

) on Switch A.

>> IP Interface 2 # /cfg/l3/rtrid 10.10.14.1(Set static router ID)

5.

Enable OSPF.

>> IP# /cfg/l3/ospf/on

6.

Define the backbone.

7.

This version of switch software requires that a backbone index be configured on the non-backbone

end of the virtual link as follows:

>> Open Shortest Path First # aindex 0(Select the menu for area index 0)

>> OSPF Area (index) 0 # areaid 0.0.0.0(Set the area ID for OSPF area 0)

>> OSPF Area (index) 0 # enable (Enable the area)

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