Preserving terminal network addresses over satellite networks when switching to a different satellite hub
An apparatus and a system to preserve Internet Protocol (IP) addressing over a space link is disclosed. The apparatus includes: a network interface; a space link interface; a configuration table comprising Very Small Aperture Terminal (VSAT) network information and a satellite hub table, wherein the VSAT network information comprises subnet and range information for a network linked to the network interface; and a VSAT registration module. The VSAT registration module is configured to: select a satellite hub from the satellite hub table for communicating with using the space link interface, register the apparatus with the selected hub, and advertise the local-network information by communicating a route based on the local-network information to the selected hub, wherein the local-network information is independent of the hub selected from the satellite hub table.
1. An apparatus to preserve Internet Protocol (IP) addressing over a space link, the apparatus comprising:
a network interface;
a space link interface;
a configuration table, disposed in a Very Small Aperture Terminal (VSAT), comprising Very Small Aperture Terminal (VSAT) network information and a satellite hub table, wherein the VSAT network information comprises subnet and range information for a network linked to the network interface; and
a VSAT registration module configured to:
select a satellite hub from the satellite hub table for communicating with using the space link interface,
register the apparatus with the selected hub, and
advertise the local-network information by communicating a route based on the local-network information to the selected hub,
wherein the local-network information is independent of the hub selected from the satellite hub table.
2. The apparatus of claim 1 , further comprising a router stack to communicate an IP datagram over the space link interface, wherein the IP datagram comprises the route based on the local-network information.
3. The apparatus of claim 1 , wherein the local-network information is based on a routing packet received over the network interface.
4. The apparatus of claim 1 , wherein the local network information comprises an IP address for the apparatus.
5. The apparatus of claim 1 , wherein the apparatus is configured to operate as a Very Small Aperture Terminal (VSAT).
6. The apparatus of claim 1 , wherein the VSAT registration module is configured to select the satellite hub based on one or more of space link availability, load on the hub, a communication latency, cost of the space link, or a combination thereof.
7. The apparatus of claim 1 , wherein the VSAT registration module is configured to advertise using a standard internet routing protocol compliant with the Border Gateway Protocol (BGP).
8. The apparatus of claim 1 , wherein the VSAT registration module is configured to register with a second hub selected from the satellite hub table, wherein the second hub is different than the selected hub.
9. The apparatus of claim 1 , wherein the satellite hub table comprises space link addressing information for a plurality of satellite hubs.
10. A system to preserve Internet Protocol (IP) addressing over a space link, the system comprising:
a Very Small Aperture Terminal (VSAT) comprising:
a network interface,
a space link interface, and
a configuration table comprising Very Small Aperture Terminal (VSAT) network information and a satellite hub table, wherein the VSAT network information comprises subnet and range information for a network linked to the network interface, and
a VSAT registration module configured to select a satellite hub from the satellite hub table for communicating with using the space link interface, register the apparatus with the selected hub, and advertise the local-network information by communicating a route based on the local-network information to the selected hub; and
a satellite hub comprising:
a registration module configured to register the VSAT, and
an advertise networks module to advertise the local network information from the VSAT,
wherein the local-network information is independent of the hub selected from the satellite hub table.
11. The system of claim 10 , wherein the local-network information is based on a routing packet received over the network interface.
12. The system of claim 10 , wherein the local network information comprises an IP address for the apparatus.
13. The system of claim 10 , wherein the VSAT registration module is configured to select the satellite hub based on one or more of space link availability, load on the hub, a communication latency, cost of the space link, or a combination thereof.
14. The system of claim 10 , wherein the VSAT registration module is configured to advertise using a standard internet routing protocol compliant with the Border Gateway Protocol (BGP).
15. The system of claim 10 , wherein the VSAT registration module is configured to register with a second hub selected from the satellite hub table, wherein the second hub is different than the selected hub.
16. The system of claim 10 , wherein the VSAT further comprises a router stack to communicate an IP datagram over the space link interface, wherein the IP datagram comprises the route based on the local-network information.
17. The system of claim 10 , wherein the satellite hub table comprises space link addressing information for a plurality of satellite hubs.