Errata & Questions for Fast Handoff Draft Version 08.

Sun Peng <[email protected]> Fri, 07 Nov 2003 18:57:08 +0800
Newsgroups gmane.ietf.mobileip
Message-ID <023301c3a51d$e3db2390$6c89a8c0@amasesp>
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1. Errata:

    Page 18, ICMP Fields/Code: should be 0, 1, 2, 3; 
    Page 27, 6.3.3 "Type value for FBACK is 10", should be changed to 
                           "Type value for FNA is 10";

2. Questions, welcome any comments. :)

   Page 19, Code Value =0, isn't it a must to provide New Prefix Information? 
                 otherwise, no way to construct New CoA.

   Page 30, The LLA option, if the length is in 8 octets, there is no way to figure
                 out the valid length of link-layer length. for example, 802.3, link-layer
                 addr length is 6 octets, the valid length of the entire option is 9 octets,
                 but the length field must be filled with 2, because 9 is not a multiple of
                 8. Shouldn't we use PAD options, instead of  specify the link layer length
                 in this way?


   Page 31 6.4.4. for NAACK options,  if new Care-of address is supplied,
                is it implies that the nCoa's life-time is the same
                as the life time for the Prefix in the router advertisement? 
                If so, I think it's better to state that. 

--------------------------------------
Sun Peng (Ph.D)
Associate Scientist 
Networking Department
Institute for Infocomm Research, 
Republic of Singapore

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<DIV><FONT face=Arial size=2>1. Errata:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>&nbsp;&nbsp;&nbsp; Page 18, ICMP Fields/Code: 
should be 0, 1, 2, 3; </FONT><FONT face=Arial size=2></FONT></DIV>
<DIV><FONT face=Arial size=2>&nbsp;&nbsp;&nbsp; Page 27, 6.3.3 "Type value for 
FBACK is 10", should be changed to </FONT></DIV>
<DIV><FONT face=Arial 
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
"Type value for FNA is 10";</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>2. Questions, welcome any comments. :)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>&nbsp;&nbsp; Page 19, Code Value =0, isn't it a 
must to provide New Prefix Information? </FONT></DIV>
<DIV><FONT face=Arial 
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
otherwise, no way to construct New CoA.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>&nbsp;&nbsp; Page 30, The LLA option, if the length 
is in 8 octets, there is no way to figure</FONT></DIV>
<DIV><FONT face=Arial 
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
&nbsp;out the valid length of link-layer length.</FONT><FONT face=Arial 
size=2>&nbsp;for example, 802.3, link-layer</FONT></DIV>
<DIV><FONT face=Arial 
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
addr length is 6 octets,&nbsp;the valid length&nbsp;of the entire option is 9 
octets,</FONT></DIV>
<DIV><FONT face=Arial 
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;but 
the length field must be filled with 2, because 9 is not a multiple 
of</FONT></DIV>
<DIV><FONT face=Arial 
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
8. Shouldn't we&nbsp;use PAD options, instead of&nbsp;&nbsp;specify the link 
layer length</FONT></DIV>
<DIV><FONT face=Arial 
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;in 
this way?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>&nbsp;&nbsp; Page 31 6.4.4. for NAACK 
options,&nbsp; if new Care-of address is supplied,</FONT></DIV>
<DIV><FONT face=Arial 
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
is it implies that the nCoa's life-time is the same</FONT></DIV>
<DIV><FONT face=Arial 
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
as the life time for the Prefix in the router advertisement? </FONT></DIV>
<DIV><FONT face=Arial 
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
If so, I think it's better to state that. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>--------------------------------------</FONT></DIV>
<DIV><FONT face=Arial size=2>Sun Peng (Ph.D)</FONT></DIV>
<DIV><FONT face=Arial size=2>Associate Scientist </FONT></DIV>
<DIV><FONT face=Arial size=2>Networking Department</FONT></DIV>
<DIV><FONT face=Arial size=2>Institute for Infocomm Research, </FONT></DIV>
<DIV><FONT face=Arial size=2>Republic of Singapore</FONT></DIV></BODY></HTML>

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