| CPC H04L 47/13 (2013.01) [H04L 43/106 (2013.01)] | 20 Claims |

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1. A method comprising:
determining a shortest time interval heartbeat sub-set of at least two types of heartbeat traffic detected between a first gateway device and a second gateway device, wherein:
the first gateway device is communicatively connected to the second gateway device via a virtual uplink over a local area network (LAN) connection, and
the at least two types of heartbeat traffic in the shortest time interval heartbeat sub-set have shortest time intervals between heartbeats of heartbeat traffic detected between the first gateway device and the second gateway device;
determining that heartbeat responses from the second gateway device to the first gateway device are missing for both of the at least two types of heartbeat traffic in the shortest time interval heartbeat sub-set; and
suspending the virtual uplink between the first gateway device and the second gateway device.
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