| 摘要 |
<p>The present invention relates to moving networks in communication systems. Anobject of the invention is to provide moving network nodes (205, 206) in a moving network(201) with the ability to simultaneously access several external access networks(211, 212, 213) accessible by different mobile routers (204, 207) such that adata packet directed to an address external to the moving network can be sent froma moving network node via any of the mobile routers (204, 207) and via a tunnel setupin any of the simultaneously accessible external accesses to a home agent (216)in a home network (215) of the mobile router. This is achieved by synchronizingbetween the mobile routers data regarding the external accesses of each mobilerouter, and, when a data packet is received at a first mobile router (204), thefirst mobile router selects external access based on the synchronized externalaccess information, information in the data packet and optionally also basedon access selection policies. If a selec ted access belongs to e.g. a second mobilerouter (207), the packet is forwarded from the first mobile router to the secondmobile router before it is sent to the home agent (215) via the tunnel setup throughthe selected access (211).</p> |
