diff --git a/jetty-util/src/main/java/org/eclipse/jetty/util/Pool.java b/jetty-util/src/main/java/org/eclipse/jetty/util/Pool.java
index 703bdeda497..e638fdaf713 100644
--- a/jetty-util/src/main/java/org/eclipse/jetty/util/Pool.java
+++ b/jetty-util/src/main/java/org/eclipse/jetty/util/Pool.java
@@ -140,13 +140,13 @@ public class Pool<T> implements AutoCloseable, Dumpable
      * method called or be removed via {@link Pool.Entry#remove()} or
      * {@link Pool#remove(Pool.Entry)}.
      *
-     * @param maxReservations the max desired number of reserved entries,
+     * @param allotment the desired allotment, where each entry handles an allotment of maxMultiplex,
      * or a negative number to always trigger the reservation of a new entry.
      * @return a disabled entry that is contained in the pool,
      * or null if the pool is closed or if the pool already contains
-     * {@link #getMaxEntries()} entries.
+     * {@link #getMaxEntries()} entries, or the allotment has already been reserved
      */
-    public Entry reserve(int maxReservations)
+    public Entry reserve(int allotment)
     {
         try (AutoLock l = lock.lock())
         {
@@ -159,9 +159,8 @@ public class Pool<T> implements AutoCloseable, Dumpable
 
             // The pending count is an AtomicInteger that is only ever incremented here with
             // the lock held.  Thus the pending count can be reduced immediately after the
-            // test below, but never incremented.  Thus the maxReservations limit can be
-            // enforced.
-            if (maxReservations >= 0 && pending.get() >= maxReservations)
+            // test below, but never incremented.  Thus the allotment limit can be enforced.
+            if (allotment >= 0 && (pending.get() * getMaxMultiplex()) >= allotment)
                 return null;
             pending.incrementAndGet();
 
diff --git a/tests/test-distribution/src/test/java/org/eclipse/jetty/tests/distribution/DemoBaseTests.java b/tests/test-distribution/src/test/java/org/eclipse/jetty/tests/distribution/DemoBaseTests.java
index cd09de2517a..84bb102795f 100644
--- a/tests/test-distribution/src/test/java/org/eclipse/jetty/tests/distribution/DemoBaseTests.java
+++ b/tests/test-distribution/src/test/java/org/eclipse/jetty/tests/distribution/DemoBaseTests.java
@@ -26,6 +26,7 @@ import org.eclipse.jetty.client.api.ContentResponse;
 import org.eclipse.jetty.client.util.FormRequestContent;
 import org.eclipse.jetty.http.HttpStatus;
 import org.eclipse.jetty.util.Fields;
+import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
 import static org.hamcrest.MatcherAssert.assertThat;
@@ -70,6 +71,7 @@ public class DemoBaseTests extends AbstractDistributionTest
     }
 
     @Test
+    @Tag("external")
     public void testAsyncRest() throws Exception
     {
         String jettyVersion = System.getProperty("jettyVersion");