D-Link DES-3326 Virtual Interface Configuration, Description, Transit Area, Neighbor Router ID

DES-3326 Layer 3 Fast Ethernet Switch User’s Guide

Virtual Interface Configuration

Virtual Interfaces are used by OSPF to link areas that do not have a physical connection to the backbone (also called Area 0) or to link areas of the backbone itself that are discontinuous. This allows routing information to flow from an area that is physically disconnected from area 0 into area 0 by configuring an interface across one of the areas previously defined above.

To configure an OSPF Virtual Interface, highlight Virtual Interface Configuration and press Enter.

Figure 6-47. Virtual Interface Configuration screen

Note that the Hello Interval (Hello-Intv.), Dead Interval (Dead-Intv.), and Authorization Type (Auth. Type) must be the same for the Transit Area and the remote area’s Neighbor Router.

The following fields can be set:

	Parameter	Description
Action:<Add/Modify		This field can be toggled using the
>		space bar between Add/Modify and
		Delete. Add/Modify allows for the
		creation of a new OSPF Virtual
		Interface or changes to an existing
		OSPF Virtual Interface. Delete allows
		for the deletion of an existing OSPF
		Virtual Interface.
Transit Area		Allows the entry of an OSPF Area ID
ID:[	]	− previously defined on the switch −
		that allows a remote area to
		communicate with	the	backbone
		(area 0). A Transit Area cannot be a
		Stub Area or a Backbone.
Neighbor Router ID:[		The OSPF router ID for the remote
]		router. This is a 32-bit number in
		the form of an IP address
		(xxx.xxx.xxx.xxx)	that	uniquely
		identifies the remote area’s Area
		Border Router.

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