log.trace("registering " + local_addr + " under " + group_addr + " with GossipRouter");
stubs.clear();
for (InetSocketAddress host : initial_hosts) {
RouterStub stub=new RouterStub(host.getHostName(), host.getPort(), null);
stub.setConnectionListener(this);
stubs.add(stub);
}
connect(group_addr, local_addr);
startConnectionChecker();
}