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Appendix - Classification Expressions
MDM9000 Satellite Modem
19.1.4 Expression: VLAN ID and Destination IP
The following picture shows the expression "VLAN ID" and ip4 DST net 10.101.0.23.
Use this expression to capture all incoming packets with a specific VLAN TAG and for a specific IP
address.
All other incoming packets are dropped.
The previous figure shows that IP traffic, with different VLAN ID tags, is forwarded towards a VLAN
on the remote site.
The following steps are taken:
Transmit
1. IP traffic is entering the MDM9000.
2. The traffic is inserted into the encapsulator.
3. The IP traffic is filtered according to the classification rule.
In this case "VLANID", IP packets with the VLAN ID tag 620 and ip4 DST net 10.101.0.23 are
further processed by the shaping tree (Trafnode and Node Remote MDM4).
4. IP traffic with an other "VLANID" and other ip4 dst is dropped!
5. The shaped traffic (vlan 620 and ip4 dst net 10.101.0.23) is inserted into a channel (Channel
Default).
6. A label can be assigned to the shaped traffic.
7. The shaped traffic is linked to a specific Input Stream Identifier (ISI8).
8. The shaped traffic is modulated and transmitted.
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