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diff --git a/src/dev/net/etherbus.cc b/src/dev/net/etherbus.cc
new file mode 100644
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+/*
+ * Copyright (c) 2002-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Nathan Binkert
+ */
+
+/* @file
+ * Device module for modelling an ethernet hub
+ */
+#include "dev/net/etherbus.hh"
+
+#include <cmath>
+#include <deque>
+#include <string>
+#include <vector>
+
+#include "base/trace.hh"
+#include "debug/Ethernet.hh"
+#include "debug/EthernetData.hh"
+#include "dev/net/etherdump.hh"
+#include "dev/net/etherint.hh"
+#include "dev/net/etherpkt.hh"
+#include "params/EtherBus.hh"
+#include "sim/core.hh"
+
+using namespace std;
+
+EtherBus::EtherBus(const Params *p)
+    : EtherObject(p), ticksPerByte(p->speed), loopback(p->loopback),
+      event(this), sender(0), dump(p->dump)
+{
+}
+
+void
+EtherBus::txDone()
+{
+    devlist_t::iterator i = devlist.begin();
+    devlist_t::iterator end = devlist.end();
+
+    DPRINTF(Ethernet, "ethernet packet received: length=%d\n", packet->length);
+    DDUMP(EthernetData, packet->data, packet->length);
+
+    while (i != end) {
+        if (loopback || *i != sender)
+            (*i)->sendPacket(packet);
+        ++i;
+    }
+
+    sender->sendDone();
+
+    if (dump)
+        dump->dump(packet);
+
+    sender = 0;
+    packet = 0;
+}
+
+EtherInt*
+EtherBus::getEthPort(const std::string &if_name, int idx)
+{
+    panic("Etherbus doesn't work\n");
+}
+
+bool
+EtherBus::send(EtherInt *sndr, EthPacketPtr &pkt)
+{
+    if (busy()) {
+        DPRINTF(Ethernet, "ethernet packet not sent, bus busy\n", curTick());
+        return false;
+    }
+
+    DPRINTF(Ethernet, "ethernet packet sent: length=%d\n", pkt->length);
+    DDUMP(EthernetData, pkt->data, pkt->length);
+
+    packet = pkt;
+    sender = sndr;
+    int delay = (int)ceil(((double)pkt->length * ticksPerByte) + 1.0);
+    DPRINTF(Ethernet, "scheduling packet: delay=%d, (rate=%f)\n",
+            delay, ticksPerByte);
+    schedule(event, curTick() + delay);
+
+    return true;
+}
+
+EtherBus *
+EtherBusParams::create()
+{
+    return new EtherBus(this);
+}