Link-Type Support - Extreme Networks ExtremeWare XOS Guide Manual

OSPFv3
Figure 72: Virtual link using area 1 as a transit area
Area 2
Virtual links are also used to repair a discontiguous backbone area. For example, in
connection between ABR1 and the backbone fails, the connection using ABR2 provides redundancy so
that the discontiguous area can continue to communicate with the backbone using the virtual link.
Figure 73: Virtual link providing redundancy
Area 1

Link-Type Support

You can manually configure the OSPFv3 link type for a VLAN.
Table 70: OSPFv3 link types
Link Type
Auto
560
Virtual link
ABR
Area 1
Virtual link
Area 2
ABR 1
Area 0
Number of Routers Description
Varies ExtremeWare XOS automatically determines the OSPFv3 link type
based on the interface type. This is the default setting.
ABR
Area 0
ABR 2
Area 3
Table 70 describes the link types.
ExtremeWare XOS 11.3 Concepts Guide
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Figure 73, if the
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