diff --git a/router/java/src/net/i2p/router/transport/udp/PacketHandler.java b/router/java/src/net/i2p/router/transport/udp/PacketHandler.java
index b0c20275e172f34d2275caea04816772e453740e..ea0908dcdaf18de95bb660e6066e521b866c2452 100644
--- a/router/java/src/net/i2p/router/transport/udp/PacketHandler.java
+++ b/router/java/src/net/i2p/router/transport/udp/PacketHandler.java
@@ -46,7 +46,11 @@ class PacketHandler {
     private static final int MAX_QUEUE_SIZE = 192;
     private static final int MIN_NUM_HANDLERS = 1;  // unless < 32MB
     private static final int MAX_NUM_HANDLERS = 1;
-    /** let packets be up to 30s slow */
+    /**
+     *  Let packets be up to this much skewed.
+     *  This is the same limit as in InNetMessagePool's MessageValidator.
+     *  There's no use making it any larger, as messages will just be thrown out there.
+     */
     private static final long GRACE_PERIOD = Router.CLOCK_FUDGE_FACTOR + 30*1000;
     private static final long MAX_SKEW = 90*24*60*60*1000L;