Added a few todos.
diff --git a/core/api/src/main/java/org/onlab/onos/net/HostLocation.java b/core/api/src/main/java/org/onlab/onos/net/HostLocation.java
index 22673a6..626b027 100644
--- a/core/api/src/main/java/org/onlab/onos/net/HostLocation.java
+++ b/core/api/src/main/java/org/onlab/onos/net/HostLocation.java
@@ -1,13 +1,12 @@
 package org.onlab.onos.net;
 
-import java.util.Objects;
-
 /**
  * Representation of a network edge location where an end-station host is
  * connected.
  */
 public class HostLocation extends ConnectPoint {
 
+    // Note that time is explicitly excluded from the notion of equality.
     private final long time;
 
     public HostLocation(DeviceId deviceId, PortNumber portNumber, long time) {
@@ -25,18 +24,4 @@
         return time;
     }
 
-    @Override
-    public int hashCode() {
-        return 31 * super.hashCode() + Objects.hash(time);
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (obj instanceof HostLocation) {
-            final HostLocation other = (HostLocation) obj;
-            return super.equals(obj) && Objects.equals(this.time, other.time);
-        }
-        return false;
-    }
-
 }
diff --git a/core/api/src/main/java/org/onlab/onos/net/host/HostService.java b/core/api/src/main/java/org/onlab/onos/net/host/HostService.java
index 357fb61..a42e231 100644
--- a/core/api/src/main/java/org/onlab/onos/net/host/HostService.java
+++ b/core/api/src/main/java/org/onlab/onos/net/host/HostService.java
@@ -43,7 +43,6 @@
      * @param vlanId vlan identifier
      * @return set of hosts in the given vlan id
      */
-    // FIXME: change long to VLanId
     Set<Host> getHostsByVlan(VlanId vlanId);
 
     /**
@@ -62,6 +61,8 @@
      */
     Set<Host> getHostsByIp(IpAddress ip);
 
+    // TODO: consider adding Host getHostByIp(IpAddress ip, VlanId vlan);
+
     /**
      * Returns the set of hosts whose most recent location is the specified
      * connection point.