User Manual

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Users Manual of XGS-6350-24X4C
point-to-multipoint one. Between those routers which are not adjacent the routing information can be switched
through the virtual link.
The OSPFv3 point-to-multipoint interface can be set to be multipoint-to-point interface, through which multiple
routes of a host can be established. The OSPFv3 point-to-multipoint network, comparing with the
non-broadcast and multi-access network or the point-to-point network, has the following advantages:
 The point-to-multipoint network is easy to be set without generating DR.
 This kind of network do not require the full-mesh topology, so the construction cost is relatively low.
 This kind of networks are more reliable. Even if its virtual link fails, the connection can be maintained.
The network type of the routers is the broadcast type.
54.3.5 Setting the Parameters of the OSPFv3 Domain
The configurable domain parameters include: authentication, designating a stub area and specifying a weight
for a default summary route. Its authentication is based on password protection.
The stub area means that external routes cannot be distributed to this area. Instead, ABR generates a default
external route that enters the stub area, enabling the stub area to communicate with external networks of an
autonomous area. In order to make use of the attributes supported by the OSPF stub, the default route must
be used in the stub area. To further reduce LSAs that are forwarded to the stub area, you can forbid the
summary function on ABR.
Run the following command in router configuration mode to set the domain’s parameters:
Command Purpose
areaarea-idstub [no-summary]
Defines a stub area.
area area-iddefault-cost cost
Sets the weight of the default route of
the stub area.
As to those areas that are not backbone areas and do not connect the backbone areas directly or as to those
discontinuous areas, the OSPFv3 virtual link can be used to establish a logic connectivity. In order to create
a virtual link, you have to perform configuration at the two terminals of the virtual link. If only one terminal is
configured, the virtual link cannot work.
Run the following command in router configuration mode to set the domain’s parameters:
Command Purpose
areaarea-idvirtual-link neighbor-ID
[dead-intervaldead-value][ hello-inter
valhello-value][ retransmit-intervalretr
ans-value][ transmit-delaydly-value]
Establishes the virtual link.
54.3.6 Setting the Route Summary in the OSPFv3 Domain
With this function ABR can broadcast a summary route to other areas. In OSPFv3 ABR will broadcast each
network to other areas. If network IDs are distributed to be continuous, you can set ABR to broadcast a
summary route to other areas. The summary route can cover all networks in a certain range.
Run the following command in router configuration mode to set the address' range: