Alteon OS Application Guide

Configuring OSPF for a Virtual Link on Switch #2

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

Two IP interfaces are needed on Switch #2: 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

# addr 10.10.12.2

(Select menu for IP interface 1)

>> IP Interface

1

(Set IP address on transit area net-

>> IP Interface 1 # mask 255.255.255.0

work)

(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)

2.Configure the router ID.

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 1 in Step 8 on page 208.

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

3.Enable OSPF.

>> IP# /cfg/l3/ospf/on(Enable OSPF on switch 2)

4. Define the backbone.

This version of Alteon OS 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)

5. Define the transit area.

>> OSPF Area (index) 0

# ../aindex 1

(Select menu for area index 1)

>> OSPF Area (index) 1

# areaid 0.0.0.1

(Set the area ID for OSPF area 1)

>> OSPF

Area

(index)

1

#

type transit

(Define area as transit type)

>> OSPF

Area

(index)

1

#

enable

(Enable the area)

42C4911, January 2007

Chapter 12: OSPF „ 209

Page 208 Page 210
Page 209
Image 209
Nortel Networks 42C4911 manual Configuring Ospf for a Virtual Link on Switch #2, # ../aindex
Page 208 Page 210

42C4911 specifications

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