further rev responding to Joerg Ott

draft-ietf-lsvr-l3dl.xml

@@ -505,8 +505,9 @@
 
    <figure>
      <preamble>Sum up 32-bit unsigned ints in a 64-bit long, then take
-     the high-order section, shift it right, rotate, add it in, repeat
-     until zero.</preamble>
+     the high-order section, shift it right filling on the left with
+     zeros, rotate, add it in, repeat until the high order 32 bits are
+     all zero.</preamble>
 
      <artwork><![CDATA[
 
@@ -841,6 +842,10 @@ q-->
     authenticate is a failure to start the L3DL session, an ERROR PDU
     MUST BE sent (Error Code 3), and HELLOs MUST be restarted.</t>
 
+    <t>Although delay and jitter in responding with an OPEN were
+    specified above, beware of load created by long strings of
+    authentication failures and retries.</t>
+
     <t>The Serial Number is that of the last received and processed PDU.
     This allows a receiver sending an OPEN to tell the sender that the
     receiver wants to resume a session and the sender only needs to send