Zte ZXR10 GER, Руководство пользователя

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ZXR10 GER (V2.6.03) General Excellent Router User Manual Volume-I
202 Confidential and Proprietary Information of ZTE CORPORATION
Generating Default Route
An ASBR can be configured to advertise a default route to entire
OSPF domain. When a router uses a redistributed route, it
becomes an ASBR. By default, the ASBR cannot automatically
advertise the default route to entire OSPF domain. When a
command is used to configure a router to advertise a default
route, the router becomes an ASBR automatically.
This below procedure describes how to configure inter area route
aggregation in OSPF.
„
Router Command Line Interface has been accessed.
„
Make sure that OSPF is running on a network as described in
above basic OSPF configuration.
1. To configure a default route in order to inject into OSPF by
ASBR, use notify default route [ always ] [ metric < value >]
[ metric-type < type> ] [ route-map < map-tag >] command
in OSPF route mode as shown in Table 247.
T
A B L E
2 4 7 D
E F A U L T
R
O U T E
C
O M M A N D
Command Format
Command
Mode
Command
Function
notify default route
[always] [metric
< value >] [metric-type
< type> ] [route-map
< map-tag >]
OSPF Route
This configures
ASBR to advertise
the default route to
OSPF
Result: This sets ASBR to advertise the default route to
OSPF.
Configuring Virtual Links
OSPF typically requires coordination among many internal
routers: Area Border Routers (ABRs), which are routers
connected to multiple areas, and Autonomous System Boundary
Routers (ASBRs). At a minimum, OSPF-based routers or access
servers can be configured with all default parameter values, no
authentication, and interfaces assigned to areas.
In OSPF, all areas must be connected to a backbone area. If
there is a break in backbone continuity, or the backbone is
purposefully partitioned, there can be a virtual link.
The two endpoints of a virtual link are ABRs. The virtual link
must be configured in both routers. The configuration
information in each router consists of the other virtual endpoint
(the other ABR) and the non-backbone area that the two routers
have in common (called the transit area). Note that virtual links
cannot be configured through stub areas.
Introduction
Purpose
Prerequisite
Steps
Introduction
ABRs