
2 | 5 |
Router
Unswitched Data Switched Data
1
3
Router
4
Router
Disadvantages:
Shared data paths
All processing done on Layer 3
Slow softwarebased processing
Layer 3
Layer 2
|
|
| Router | Router |
|
|
| |||
|
|
| Process |
|
| Process |
|
|
| |
|
|
| ......Packets |
|
| ...... |
|
|
| |
|
|
|
|
| Packets |
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ......... |
| .... | ............ | .... | ..... |
| |||
|
|
|
| |||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Figure 8. Conventional Routers
The SP Switch Router provides near