It needs a new transport layer protocol to promote IPv6
高 军安 <[email protected]> Tue, 30 Oct 2018 11:33:28 +0000
| Newsgroups | gmane.ietf.ops |
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<div id=3D"divtagdefaultwrapper" style=3D"font-size:12pt;color:#000000;font=
-family:Calibri,Helvetica,sans-serif;" dir=3D"ltr">
<p style=3D"margin-top:0;margin-bottom:0"></p>
<div>
<p style=3D"margin: 0px;"><font face=3D"Calibri">A new transport protocol s=
hould help</font></p>
<p style=3D"margin: 0px;"><font face=3D"Calibri"> </font></p>
<p style=3D"margin: 0px;"><font face=3D"Calibri">- to alleviate, if not to =
eliminate, the routing scalability problem,</font></p>
<p style=3D"margin: 0px;"><font face=3D"Calibri"> </font></p>
<p style=3D"margin: 0px;"><font face=3D"Calibri">- to phase out NAT t=
o eliminate processing delay caused by unnecessary middleboxes, and</font><=
/p>
<p style=3D"margin: 0px;"><font face=3D"Calibri"> </font></p>
<p style=3D"margin: 0px;"><font face=3D"Calibri">- to make more efficient u=
tilization of abundant IPv6 addresses.</font></p>
<br>
</div>
<p></p>
<p style=3D"margin-top:0;margin-bottom:0"></p>
<p style=3D"margin-top:0;margin-bottom:0">A new transport protocol called F=
SP is proposed:</p>
<p style=3D"margin-top:0;margin-bottom:0"><a class=3D"OWAAutoLink" id=3D"LP=
lnk989111" href=3D"https://datatracker.ietf.org/doc/draft-gao-flexible-sess=
ion-protocol/" previewremoved=3D"true">https://datatracker.ietf.org/doc/dra=
ft-gao-flexible-session-protocol/</a></p>
<p style=3D"margin-top:0;margin-bottom:0"><br>
</p>
<p style=3D"margin-top:0;margin-bottom:0"></p>
<p style=3D"background-color: transparent; color: rgb(0, 0, 0); font-family=
: Calibri,Helvetica,sans-serif,&quot;EmojiFont&quot;,&quot;Appl=
e Color Emoji&quot;,&quot;Segoe UI Emoji&quot;,NotoColorEmoji,&=
amp;quot;Segoe UI Symbol&quot;,&quot;Android Emoji&quot;,EmojiS=
ymbols; font-size: 16px; font-style: normal; font-variant: normal; font-wei=
ght: 400; letter-spacing: normal; margin-bottom: 0px; margin-top: 0px; orph=
ans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-tra=
nsform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spa=
cing: 0px;">
<span style=3D"font-size: 14.66px; margin-bottom: 0px; margin-left: 0px; ma=
rgin-right: 0px; margin-top: 0px;">Detailed motivations of designing FSP is=
explained in
<u><font color=3D"#0b0919">h<a class=3D"OWAAutoLink" id=3D"LPlnk946891" hre=
f=3D"https://datatracker.ietf.org/doc/draft-gao-fsp-motivations/" previewre=
moved=3D"true">ttps://datatracker.ietf.org/doc/draft-gao-fsp-motivations/</=
a></font></u></span><br style=3D"background-color: transparent; border-bott=
om-style: none; border-left-style: none; border-right-style: none; border-t=
op-style: none; color: rgb(0, 0, 0); cursor: auto; display: inline; font-fa=
mily: Calibri,Helvetica,sans-serif,&quot;EmojiFont&quot;,&quot;=
Apple Color Emoji&quot;,&quot;Segoe UI Emoji&quot;,NotoColorEmo=
ji,&quot;Segoe UI Symbol&quot;,&quot;Android Emoji&quot;,Em=
ojiSymbols; font-size: 16px; height: auto; -ms-user-select: text; outline-c=
olor: transparent; outline-style: none; outline-width: 0px; overflow-x: vis=
ible; overflow-y: visible; padding-bottom: 0px; padding-left: 0px; padding-=
right: 0px; padding-top: 0px; width: auto;">
</p>
<br>
<p style=3D"margin: 0px;"><font face=3D"Calibri">In short, FSP is a connect=
ion-oriented transport layer provides mobility, multi-homing and multi-path=
support by introducing the concept of 'upper layer thread ID' (ULTID), whi=
ch was firstly suggested in "Fuzzy-layering
and its suggestion" (https://mailarchive.ietf.org/arch/msg/ietf/u-6i-=
6f-Etuvh80-SUuRbSCDTwg).</font></p>
<p style=3D"margin: 0px;"><font face=3D"Calibri"> </font></p>
<p style=3D"margin: 0px;"><font face=3D"Calibri">An integrity check code (I=
CC) field associated with the ULTID is designed in the FSP header to protec=
t authenticity and optionally privacy of the FSP packet. An FSP packet is a=
ssumed to originate from the same source
if the ICC value associated with certain destination ULTID passes validati=
on, regardless of the source or destination address in the underlying layer=
..</font></p>
<p style=3D"margin: 0px;"><font face=3D"Calibri"> </font></p>
<p style=3D"margin: 0px;"><font face=3D"Calibri">The ULTID is assigned roug=
hly the same semantics with Security Parameter Index (SPI) in MOBIKE [RFC45=
55]. Either the weak key or the shared secret key is indexed by the source =
or destination ULTID in the local context
of the sender or the receiver, respectively.</font></p>
<p style=3D"margin: 0px;"><font face=3D"Calibri"> </font></p>
<p style=3D"margin: 0px;"><font face=3D"Calibri">FSP facilitates secret key=
installation by introducing the concept of transmit transaction. Mechanism=
of transmit transaction also provides the session-connection synchronizati=
on service to the upper layer.</font></p>
<p style=3D"margin: 0px;"><br>
</p>
<p style=3D"margin: 0px;"><br>
</p>
<p style=3D"margin: 0px;">FSP effectively separates the identifier role and=
routing locator role of the IPv6 address. The identifier role is localized=
while the routing locator role is kept global. By supporting mobility and =
multihoming at the transport layer
it alleviates the routing scalability problem caused by supporting mobilit=
y and multihoming at the network layer.</p>
<p style=3D"margin: 0px;"><br>
</p>
<p style=3D"margin: 0px;">When implemented over IPv6 abundance of IPv6 addr=
esses makes NAT obsolete. However FSP over UDP is still friendly to NAT.</p=
>
<p style=3D"margin: 0px;"><br>
</p>
<p style=3D"margin: 0px;">FSP eliminates the concept of <span style=3D"disp=
lay: inline !important; float: none; background-color: transparent; color: =
rgb(0, 0, 0); font-family: Calibri,Helvetica,sans-serif,"EmojiFont&quo=
t;,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,=
"Segoe UI Symbol","Android Emoji",EmojiSymbols; font-si=
ze: 16px; font-style: normal; font-variant: normal; font-weight: 400; lette=
r-spacing: normal; orphans: 2; text-align: left; text-decoration: none; tex=
t-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-=
space: normal; word-spacing: 0px;">
'</span>port number<span style=3D"display: inline !important; float: none; =
background-color: transparent; color: rgb(0, 0, 0); font-family: Calibri,He=
lvetica,sans-serif,"EmojiFont","Apple Color Emoji",&quo=
t;Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","And=
roid Emoji",EmojiSymbols; font-size: 16px; font-style: normal; font-va=
riant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-a=
lign: left; text-decoration: none; text-indent: 0px; text-transform: none; =
-webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;">'<=
/span>.
Instead it proposes to take use of the lower 32 bits of the 128-bit IPv6 a=
ddress as the 'upper layer thread ID'. It could considerably enhance alloca=
tion efficiency of the IPv6 address space.</p>
<p style=3D"margin: 0px;"><br>
</p>
<p style=3D"margin: 0px;"><br>
</p>
<p style=3D"margin: 0px;"></p>
<div>Jason (Jun-an), Gao</div>
<div>General Manager,</div>
<div>Information Technology Department<br>
Beijing Static Traffic Investment and Operation Co.,Ltd.</div>
<p></p>
<p></p>
</div>
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