US Robotics USR2410 Bedienungsanleitung PDF herunterladen (Seite 40)

Figure 5-6: Directed Graph of Mesh Wireless Device Output Processing Block

Packets originating from the Mesh Wireless Device Input Processing and Packet Classification

block were sent to the TTLChecker element. If the time to live for a packet had not expired the

packet was sent to the wireless device. If it had expired, the generated ICMP error packet was

sent to the ip_demux IPClassifier. Packets from the Router Input Processing and Packet

Classification block also arrived to the output path via the ip_demux element.

Packets arriving at the ip_demux element were classified based on their destination IP address.

These destination could be the host router, mesh network, other network, or client network.

If the destination was the host router the packet was sent to the Router Output Processing block.

If the destination was the mesh network, or another network the packets were encapsulated in a

grid header containing the IP and MAC addresses of the host router. If these packets were

destined for another network, they were sent to the GridGatewayInfo element, to have their

destination IP address annotation set to the address of the gateway router. If not, they were sent to

a CheckIPHeader element to have their destination IP address annotation set. They were then sent

to the TTLChecker element, and handled as described above.

If a packet is addressed to the client adapter’s IP address, it is sent to the Router Output

Processing block. If it is destined for the client network, it is sent to the Client Device Output

Processing block.

5.3.4.4.

Router Input Processing and Packet Classification

This section describes the input processing done to packets originating from this router. This

would occur if a console session was started at that router or if an administrator was connected

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 106 107

Keine Kommentare

US Robotics USR2410 Bedienungsanleitung Seite 40