2019-04-11 00:10:41 +02:00
|
|
|
# Four area topology
|
|
|
|
|
|
|
|
|
|
Topology taken from [this
|
|
|
|
|
image](https://networklessons.com/wp-content/uploads/2017/05/xis-is-multiple-areas-adjacencies.png.pagespeed.a.ic.tmdDcRdRK8.png)
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
------A3 ------A3 ------A4
|
|
|
|
|
| | | | | |
|
|
|
|
|
| R5 1|------|3 R6 1|------|2 R9 1|--- h9_1
|
|
|
|
|
| 2 | | 2 | | |
|
|
|
|
|
------ ------ ------
|
|
|
|
|
| |
|
|
|
|
|
| |
|
|
|
|
|
| |
|
|
|
|
|
------A3 ------A3
|
|
|
|
|
| 1 | | 1 |
|
|
|
|
|
| R7 2|------|3 R8 |
|
|
|
|
|
| | | 2 |
|
|
|
|
|
------ ------
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
------A1 ------A1 ------A2 ------A2
|
|
|
|
|
| | | 1 | | | | |
|
|
|
|
|
| R1 1|------|3 R2 2|------|3 R3 1|------|1 R4 |
|
|
|
|
|
| | | | | 2 | | |
|
|
|
|
|
------ ------ ------ ------
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
h3_1
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
## Area 1
|
|
|
|
|
|
|
|
|
|
Area ID: 49.0001
|
|
|
|
|
|
|
|
|
|
### R1
|
|
|
|
|
|
|
|
|
|
* NET: 49.0001.0100.0000.0001.00
|
|
|
|
|
* IS-type: level-1
|
|
|
|
|
|
|
|
|
|
Interface | Name | Circuit Type
|
|
|
|
|
----------|---------|---------------
|
|
|
|
|
0 | lo | -
|
|
|
|
|
1 | R1-eth1 | Level-1
|
|
|
|
|
|
|
|
|
|
### R2
|
|
|
|
|
|
|
|
|
|
* NET: 49.0001.0100.0000.0002.00
|
|
|
|
|
* IS-type: level-1-2
|
|
|
|
|
|
|
|
|
|
Interface | Name | Address/Subnet
|
|
|
|
|
----------|---------|---------------
|
|
|
|
|
0 | lo | -
|
|
|
|
|
1 | R2-eth1 | Level-2
|
|
|
|
|
2 | R2-eth2 | Level-2
|
|
|
|
|
3 | R2-eth3 | Level-1
|
|
|
|
|
|
|
|
|
|
## Area 2
|
|
|
|
|
|
|
|
|
|
Area ID: 49.0002
|
|
|
|
|
|
|
|
|
|
### R3
|
|
|
|
|
|
|
|
|
|
* NET: 49.0002.0100.0000.0003.00
|
|
|
|
|
* IS-type: level-1-2
|
|
|
|
|
|
|
|
|
|
Interface | Name | Address/Subnet
|
|
|
|
|
----------|---------|---------------
|
|
|
|
|
0 | lo | -
|
|
|
|
|
1 | R3-eth1 | Level-1
|
|
|
|
|
2 | R3-eth2 | -
|
|
|
|
|
3 | R3-eth3 | Level-2
|
|
|
|
|
|
|
|
|
|
### R4
|
|
|
|
|
|
|
|
|
|
* NET: 49.0002.0100.0000.0004.00
|
|
|
|
|
* IS-type: level-1
|
|
|
|
|
|
|
|
|
|
Interface | Name | Address/Subnet
|
|
|
|
|
----------|---------|---------------
|
|
|
|
|
0 | lo | -
|
|
|
|
|
1 | R4-eth1 | Level-1
|
|
|
|
|
|
|
|
|
|
## Area 3
|
|
|
|
|
|
|
|
|
|
Area ID: 49.0003
|
|
|
|
|
|
|
|
|
|
### R5
|
|
|
|
|
|
|
|
|
|
* NET: 49.0003.0100.0000.0005.00
|
|
|
|
|
* IS-type: level-1
|
|
|
|
|
|
|
|
|
|
Interface | Name | Address/Subnet
|
|
|
|
|
----------|---------|---------------
|
|
|
|
|
0 | lo | -
|
|
|
|
|
1 | R5-eth1 | Level-1
|
|
|
|
|
2 | R5-eth2 | Level-1
|
|
|
|
|
|
|
|
|
|
### R6
|
|
|
|
|
|
|
|
|
|
* NET: 49.0003.0100.0000.0006.00
|
|
|
|
|
* IS-type: level-1-2
|
|
|
|
|
|
|
|
|
|
Interface | Name | Address/Subnet
|
|
|
|
|
----------|---------|---------------
|
|
|
|
|
0 | lo | -
|
|
|
|
|
1 | R6-eth1 | Level-2
|
|
|
|
|
2 | R6-eth2 | Level-1-2
|
|
|
|
|
3 | R6-eth3 | Level-1
|
|
|
|
|
|
|
|
|
|
### R7
|
|
|
|
|
|
|
|
|
|
* NET: 49.0003.0100.0000.0007.00
|
|
|
|
|
* IS-type: level-1
|
|
|
|
|
|
|
|
|
|
Interface | Name | Address/Subnet
|
|
|
|
|
----------|---------|---------------
|
|
|
|
|
0 | lo | -
|
|
|
|
|
1 | R7-eth1 | Level-1
|
|
|
|
|
2 | R7-eth2 | Level-1
|
|
|
|
|
|
|
|
|
|
### R8
|
|
|
|
|
|
|
|
|
|
* NET: 49.0003.0100.0000.0008.00
|
|
|
|
|
* IS-type: level-1-2
|
|
|
|
|
|
|
|
|
|
Interface | Name | Address/Subnet
|
|
|
|
|
----------|---------|---------------
|
|
|
|
|
0 | lo | -
|
2019-04-15 21:08:27 +02:00
|
|
|
1 | R8-eth1 | Level-1-2
|
|
|
|
|
2 | R8-eth2 | Level-2
|
2019-04-11 00:10:41 +02:00
|
|
|
3 | R8-eth3 | Level-1
|
|
|
|
|
|
|
|
|
|
## Area 4
|
|
|
|
|
|
|
|
|
|
Area ID: 49.0004
|
|
|
|
|
|
|
|
|
|
### R9
|
|
|
|
|
|
|
|
|
|
* NET: 49.0004.0100.0000.0009.00
|
|
|
|
|
* IS-type: level-2-only
|
|
|
|
|
|
|
|
|
|
Interface | Name | Address/Subnet
|
|
|
|
|
----------|---------|---------------
|
|
|
|
|
0 | lo | -
|
|
|
|
|
1 | R9-eth1 | -
|
|
|
|
|
2 | R9-eth2 | Level-2
|
