Zte ZXR10 8900 Series Command Reference Manual page 44

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ZXR10 8900 Series Command Reference (IP Routing Volume I)
area <area-id> nssa [no-redistribution][default-information
Syntax
-originate [metric <metric-value>][metric-type <type>]][no-
summary]
no area <area-id> nssa [no-redistribution][default-informa
tion-originate][no-summary]
Syntax
Description
<area-id>
no-redistribution
default-information
-originate
metric <metric-val
ue>
metric-type <type>
no-summary
No NSSA area is defined.
Defaults
For the NSSA area, if there is a default advertisement of type 7
generated, the default cost value will be 1 and the type will be
ext-2.
1. This command is supported after the version 4.6.02 of plat-
Instructions
2. Area 0, stub area and the area with virtual links cannot be
3. It is allowed to simultaneously specify whether to forbid the
4. If the area does not exist, it will be created automatically.
5. On the ABR routers, Type 7 default routes can be generated
6. On the ABR routers, Type 3 default LSA can be generated by
7. When NSSA areas generate common Type 7 LSA, the selection
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Area identifier, a decimal number
(0~4294967295) or a dotted decimal IP
address
Do not redistribute the advertisement of
NSSA link state to the NSSA area
Generate the advertisement of the link state
of default route of Type 7
Cost value of the advertisement of the link
state of Type 7, range: 0~16777214
Type of the advertisement of the link state of
default route of Type 7, ext-1 or ext-2
Do not send the advertisement of the
summary link state to the NSSA area
form.
configured as the nssa area. One nssa area at most can be
configured on one router.
ABR from sending summary route information to the NSSA
area, whether to import the advertisement of external link
state of type 7 to the NSSA area, and whether to generate the
advertisement of default link state of type 7. Default: There
is no forbidding of the summary of routes. Routes of type 7 is
imported. There is no default route of type 7 generated.
by configuring the area nssa default-information originate
command.
configuring the area nssa no-summary command.
of FA follows the following rules.
i. If the next hop of a redistributed route is in the NSSA area
of OSPF, then it takes the next hop.
ii. Otherwise, traverse the addresses of all OSPF interfaces in
the NSSA area, but omit the unnumbered ptop interface.
iii. Select the loopback interface in the NSSA area. If there
are multiple loopback interfaces, select the one with the
biggest IP address.