Examples of org.jgroups.protocols.TUNNEL

org.jgroups.protocols.TUNNEL

Replacement for UDP. Instead of sending packets via UDP, a TCP connection is opened to a Router (using the RouterStub client-side stub), the IP address/port of which was given using channel properties router_host and router_port. All outgoing traffic is sent via this TCP socket to the Router which distributes it to all connected TUNNELs in this group. Incoming traffic received from Router will simply be passed up the stack.

A TUNNEL layer can be used to penetrate a firewall, most firewalls allow creating TCP connections to the outside world, however, they do not permit outside hosts to initiate a TCP connection to a host inside the firewall. Therefore, the connection created by the inside host is reused by Router to send traffic from an outside host to a host inside the firewall. @author Bela Ban

    }
    
    private void modifyChannel(JChannel... channels) throws Exception {
        for (JChannel c : channels) {
            ProtocolStack stack = c.getProtocolStack();
            TUNNEL t = (TUNNEL) stack.getBottomProtocol();
            String s = bindAddress + "[" + gr1.getPort() + "],";
            s+=bindAddress+"[" + gr2.getPort() + "]";
            t.setGossipRouterHosts(s);
            t.init();
        }        
    }

            merge.setMaxInterval(3000);
        }
    }


    private static void setReconnectInterval(JChannel channel) {
        TUNNEL tunnel=(TUNNEL)channel.getProtocolStack().getTransport();
        if(tunnel != null) {
            tunnel.setReconnectInterval(2000);
        }
    }

        if(merge != null) {
            merge.setMinInterval(1000);
            merge.setMaxInterval(3000);
        }


        TUNNEL tunnel=(TUNNEL)stack.getTransport();
        if(tunnel != null) {
            tunnel.setReconnectInterval(2000);
        }


        PING ping=(PING)stack.findProtocol(PING.class);
        if(ping != null) {
            ping.setGossipRefresh(1000);

Examples of org.jgroups.protocols.TUNNEL

Related Classes of org.jgroups.protocols.TUNNEL