Bridging/Routing Models 3-5
Figure 3-4 Bridging in the Traditional Bridging/Routing Model
In the traditional bridging/routing model, a packet is routed as follows
(see Figure 3-5):
1The packet enters the bridge/router.
2The bridge/router determines that the packet belongs to a recognized
routed protocol, so the packet is passed to the router.
3The router examines the destination network address and forwards the
packet to the interface (port) connected to the destination subnet.
Figure 3-5 Routing in the Traditional Bridging/Routing Model
1
Transmitting Host Destination Host
Interfaces (ports)
Router Bridge
2
Networks
3
Router vs. Bridge ?
1
Transmitting Host
3
Destination Host
Interfaces (ports)
Router Bridge
2
Networks
Router vs. Bridge ?