CPC H04L 45/50 (2013.01) [H04L 12/4633 (2013.01); H04L 45/04 (2013.01); H04L 45/22 (2013.01); H04L 45/28 (2013.01)] | 20 Claims |
1. A method comprising:
receiving, at a gateway label edge router, a packet destined for a mobile domain that comprises a vehicle label edge router;
identifying, by the gateway label edge router and from among a plurality of primary domains, a particular primary domain that currently has a label switched connection with the mobile domain, wherein the label switched connection connects the vehicle label edge router of the mobile domain and a cluster label edge router of the particular primary domain;
sending, by the gateway label edge router, the packet to the cluster label edge router of the particular primary domain for transmission to the vehicle label edge router via the label switched connection; and
tracking, by the gateway label edge router, when the vehicle label edge router of the mobile domain establishes a new label switched connection with a second cluster label edge router of a different primary domain in the plurality of primary domains than that of the particular primary domain,
wherein a label switched path of the new label switched connection between the vehicle label edge router and the second cluster label edge router passes through one or more border nodes which execute a local handoff procedure to establish the new label switched connection.
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