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DES-7200 Configuration Guide Chapter 5 OSPF
Configuration
5-33
Multiple instances per link
SwitchA, SwitchB, SwitchC and SwitchD are in the same area (Area 0) and are
interconnected via vlan 100.
Application Requirements
On a broadcast link, especially within a same vlan, all switches will establish
adjacencies with each other, and this may result in increased system overhead
and network oscillation.
Application requirements: Switches in the same area are divided into several
groups, and OSPFv3 adjacencies can only be established between switches
belonging to the same group.
Configuration tips
By configuring multiple instances on the same link (the link on interface vlan100),
adjacency establishment by group can be realized (in this example, SwitchA and
SwitchB form a group, with instance ID being 1; SwitchC and SwitchD form a
group, with instance ID being 0).
By default, the instance ID for interface is 0. In this example, you only need to
configure the instance ID on Switch A and Switch B.
Configuration Steps
SwitchA
Step 1: Create VLAN and configure IPv6 address
SwitchA# conf