/// <summary>Seek TAs.</summary>
protected override void SeekTAs(DateTime now)
{
Channel queue = new Channel();
queue.EnqueueEvent += HandleSeekTAs;
try {
ISender mcs = _iphandler.CreateMulticastSender();
_rpc.Invoke(mcs, queue, RPC_CLASS + ".SeekTAs", _realm);
} catch (SendException) {
/*
* On planetlab, it is not uncommon to have a node that does not allow
* Multicast, and it will throw an exception here. We just ignore this
* information for now. If we don't the heartbeatevent in the node
* will not execute properly.
*/
}
}