Netgear GS728TP Manuale Utente Pagina 252

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Routing
252
ProSafe M5300 Switch
Click REFRESH to show the latest OSPF Link State information.
Virtual Link Configuration
Use the OSPF Virtual Link Configuration page to create or configure virtual interface
information for a specific area and neighbor. A valid OSPF area must be configured before
this page can be displayed.
To display the Virtual Link Configuration page, click Routing OSPF Advanced Virtual
Link Configuration.
To configure an OSPF virtual link:
1. Use Area ID to enter the area ID of the OSPF area. Virtual links may be configured
between any pair of area border routers having interfaces to a common (non-backbone)
area.
2. Use Neighbor Router ID to enter the neighbor portion of a Virtual Link specification. Virtual
links may be configured between any pair of area border routers having interfaces to a
common (non-backbone) area.
Checksum The checksum is used to detect data corruption of an advertisement. This
corruption can occur while an advertisement is being flooded, or while it is
being held in a router's memory. This field is the checksum of the complete
contents of the advertisement, except the LS age field.
Options The Options field in the link state advertisement header indicates which
optional capabilities are associated with the advertisement. The options are:
Q: This enables support for QoS Traffic Engineering.
E: This describes the way AS-external-LSAs are flooded.
MC: This describes the way IP multicast datagrams are forwarded
according to the standard specifications.
O: This describes whether Opaque-LSAs are supported.
V: This describes whether OSPF++ extensions for VPN/COS are
supported.
Field Description
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