area range
Use this command to summarize OSPF routes at an area boundary. A single summary route is then advertised to other areas by the Area Border Routers (ABRs). Routing information is condensed at area boundaries and outside the area. If the network numbers in an area are assigned in a way such that they are contiguous, the ABRs can be configured to advertise a summary route that covers all the individual networks within the area that fall into the specified range.
Use the no parameter with this command to disable this function.
Command Syntax
area (A.B.C.D|<0-4294967295>) range (A.B.C.D/M | A.B.C.D A.B.C.D)
area (A.B.C.D|<0-4294967295>) range (A.B.C.D/M | A.B.C.D A.B.C.D) non-advertise
area (A.B.C.D|<0-4294967295>) range A.B.C.D A.B.C.D non-advertise
no area (A.B.C.D|<0-4294967295>) range (A.B.C.D/M | A.B.C.D A.B.C.D)
no area (A.B.C.D|<0-4294967295>) range (A.B.C.D/M | A.B.C.D A.B.C.D) not-advertise
Parameters
A.B.C.D
Area range prefix or length e.g. X.X.X.X/length
A.B.C.D
Area range prefix e.g. A.B.C.D
<0-4294967295>
OSPF Area ID as a decimal value.
A.B.C.D/M
The area range prefix and length.
not-advertise
Does not advertise this range.
Default
Range is advertised by default.
Command Mode
Router mode
Applicability
This command was introduced before OcNOS version 1.3.
Examples
#configure terminal
(config)#router ospf 100
(config-router)#area 1 range 192.16.0.0/24
(config)#router ospf 100
(config-router)#no area 1 range 192.16.0.0/24
Last modified date: 07-13-2023