Area Range - Enterasys SecureStack C2 C2G170-24 Configuration Manual

Parameters
external | inter‐
area | intra‐area
weight
Defaults
If route type is not specified, the distance value will be applied to all OSPF routes.
Mode
Router configuration: C2(su)‐>router(Config‐router)#
Usage
If several routes (coming from different protocols) are presented to the SecureStack C2, the
protocol with the lowest administrative distance will be chosen for route installation. By default,
OSPF administrative distance is set to 110. The distance ospf command can be used to change this
value, resetting OSPF's route preference in relation to other routes as shown in the table below.
Route Source
Connected
Static
OSPF
RIP
Example
This example shows how to change the default administrative distance for external OSPF routes to
100:
C2(su)->router(Config)#router ospf 1
C2(su)->router(Config-router)#distance ospf external 100

area range

Use this command to define the range of addresses to be used by Area Border Routers (ABRs)
when they communicate routes to other areas. Each SecureStack C2 stack can support up to 4
OSPF areas. The no form of this command stops the routes from being summarized.
Syntax
area area-id range ip-address ip-mask [advertise | no-advertise]
no area area-id range ip-address ip-mask
Applies the distance value to external (type 5 and type 7), to inter‐area, or to
intra‐area routes.
Note: The value for intra-area distance must be less than the value for
inter-area distance, which must be less than the value for external distance.
Specifies an administrative distance for OSPF routes. Valid values are 1 ‐
255.
Default Distance
0
1
Intra-area - 8; Inter-area - 10; External type 1 - 13; External type 2 - 150
15
SecureStack C2 Configuration Guide 20-21
area range