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[Xen-devel] Problem with apache proxying between domains





I am experiencing some strangeness when using apache to proxy between
dom0 and a subdomain.  The problem strangely shows up only when using
the QuickTime browser plugin inside IE6 to fetch a 9Meg movie which is
served via a PHP page in the subdomain.

If I fetch the If I change the URLs to fetch via the proxy in dom0, the
quicktime browser plugin hangs.  The sniff headers below show that the
TCP window goes to 0, an indication that the plugin is not reading from
the socket.

I don't really know what to make of it.  Perhaps the networking setup is
dropping packets and/or otherwise corrupting the stream, causing the
quicktime browser plugin to stop reading bytes from the socket?

The attached network sniff header lines from Ethereal show the
communication between 216.254.100.240 (browser) and 216.254.100.205
(dom0) which proxies to 216.254.100.181 (dom1).  You will see that we go
to a ZeroWindow condition with about 3 Megs transferred out of the dom0
proxy.  At the tail end -- the TCP connection is then kept alive, but
the QuickTime plugin never becomes "enabled" and can't play the movie.

Fetching the same URL via CURL on the Windows host, dom0 host, or a
separate physical linux host works fine.  I also created a separate
Apache instance on a physically separate linux host, with the exact same
Rewrite rules.  Fetching the movie through this proxy works fine in both
the QuickTime plugin AND CURL.  I did this to eliminate the possibility
of some basic incompatibility between mod_proxy/mod_rewrite and
quicktime movies fetched by the quicktime browser plugin.

I have played with the ProxyIOBufferSize and ProxyBufferSize parameters
in the apache isntance in dom0, and have also tried various combinations
of bvt weights, warpback, etc.

Should I try to capture a sniff of xen-br0 during this interchage?  Will
that help?  WHen I tried this I think I only got partial data, perhaps
because of the xen domain scheduling causing missed packets.

No.     Time        Source                Destination           Protocol
Info
    62 4.649725    216.254.100.240       216.254.100.205       TCP
3889 > http [SYN] Seq=0 Ack=0 Win=64512 Len=0 MSS=1260
    63 4.650013    216.254.100.205       216.254.100.240       TCP
http > 3889 [SYN, ACK] Seq=0 Ack=1 Win=5840 Len=0 MSS=1460
    64 4.650064    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=1 Ack=1 Win=64512 Len=0
    68 4.650744    216.254.100.240       216.254.100.205       HTTP
GET /tiki-download_file.php?fileId=1 HTTP/1.1
    69 4.650961    216.254.100.205       216.254.100.240       TCP
http > 3889 [ACK] Seq=1 Ack=318 Win=6432 Len=0
    73 4.774515    216.254.100.205       216.254.100.240       HTTP
HTTP/1.1 200 OK[Unreassembled Packet]
    74 4.774607    216.254.100.205       216.254.100.240       HTTP
Continuation
    75 4.774664    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=2521 Win=64512 Len=0
    76 4.775122    216.254.100.205       216.254.100.240       HTTP
Continuation
    77 4.775191    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=3781 Win=64512 Len=0
    78 4.775245    216.254.100.205       216.254.100.240       HTTP
Continuation
    79 4.775742    216.254.100.205       216.254.100.240       HTTP
Continuation
    80 4.775772    216.254.100.205       216.254.100.240       HTTP
Continuation
    81 4.775794    216.254.100.205       216.254.100.240       HTTP
Continuation
    82 4.775850    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=8821 Win=64512 Len=0
    83 4.776754    216.254.100.205       216.254.100.240       HTTP
Continuation
    84 4.776821    216.254.100.205       216.254.100.240       HTTP
Continuation
    85 4.776842    216.254.100.205       216.254.100.240       HTTP
Continuation
    86 4.776863    216.254.100.205       216.254.100.240       HTTP
Continuation
    87 4.776885    216.254.100.205       216.254.100.240       HTTP
Continuation
    88 4.777030    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=15121 Win=64512 Len=0
    89 4.777948    216.254.100.205       216.254.100.240       HTTP
Continuation
    90 4.778014    216.254.100.205       216.254.100.240       HTTP
Continuation
    91 4.778037    216.254.100.205       216.254.100.240       HTTP
Continuation
    92 4.778060    216.254.100.205       216.254.100.240       HTTP
Continuation
    93 4.778081    216.254.100.205       216.254.100.240       HTTP
Continuation
    94 4.778150    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=21421 Win=61972 Len=0
    95 4.778210    216.254.100.205       216.254.100.240       HTTP
Continuation
    96 4.779062    216.254.100.205       216.254.100.240       HTTP
Continuation
    97 4.779114    216.254.100.205       216.254.100.240       HTTP
Continuation
    98 4.779137    216.254.100.205       216.254.100.240       HTTP
Continuation
    99 4.779158    216.254.100.205       216.254.100.240       HTTP
Continuation
   100 4.779180    216.254.100.205       216.254.100.240       HTTP
Continuation
   101 4.779224    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=28981 Win=54412 Len=0
   102 4.779280    216.254.100.205       216.254.100.240       HTTP
Continuation
   103 4.779720    216.254.100.205       216.254.100.240       HTTP
Continuation
   104 4.779760    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=31501 Win=51892 Len=0
   105 4.779804    216.254.100.205       216.254.100.240       HTTP
Continuation
   106 4.779828    216.254.100.205       216.254.100.240       HTTP
Continuation
   107 4.779848    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=32836 Win=50557 Len=0
   108 4.785314    216.254.100.205       216.254.100.240       HTTP
Continuation
   109 4.785359    216.254.100.205       216.254.100.240       HTTP
Continuation
   110 4.785383    216.254.100.205       216.254.100.240       HTTP
Continuation
   111 4.785405    216.254.100.205       216.254.100.240       HTTP
Continuation
   112 4.785426    216.254.100.205       216.254.100.240       HTTP
Continuation
   113 4.785482    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=39136 Win=44257 Len=0
   114 4.785564    216.254.100.205       216.254.100.240       HTTP
Continuation
   115 4.785589    216.254.100.205       216.254.100.240       HTTP
Continuation
   116 4.785604    216.254.100.205       216.254.100.240       HTTP
Continuation
   117 4.785632    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=42200 Win=41193 Len=0
   118 4.786417    216.254.100.205       216.254.100.240       HTTP
Continuation
   119 4.786460    216.254.100.205       216.254.100.240       HTTP
Continuation
   120 4.786484    216.254.100.205       216.254.100.240       HTTP
Continuation
   121 4.786507    216.254.100.205       216.254.100.240       HTTP
Continuation
   122 4.786531    216.254.100.205       216.254.100.240       HTTP
Continuation
   123 4.786569    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=48500 Win=34893 Len=0
   124 4.786621    216.254.100.205       216.254.100.240       HTTP
Continuation
   125 4.786643    216.254.100.205       216.254.100.240       HTTP
Continuation
   126 4.786668    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=50304 Win=33089 Len=0
   127 4.786790    216.254.100.205       216.254.100.240       HTTP
Continuation
   128 4.786813    216.254.100.205       216.254.100.240       HTTP
Continuation
   129 4.786838    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=52824 Win=30569 Len=0
   130 4.786876    216.254.100.205       216.254.100.240       HTTP
Continuation
   131 4.787473    216.254.100.205       216.254.100.240       HTTP
Continuation
   132 4.787513    216.254.100.205       216.254.100.240       HTTP
Continuation
   133 4.787537    216.254.100.205       216.254.100.240       HTTP
Continuation
   134 4.787559    216.254.100.205       216.254.100.240       HTTP
Continuation
   135 4.787580    216.254.100.205       216.254.100.240       HTTP
Continuation
   136 4.787620    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=60384 Win=23009 Len=0
   137 4.787674    216.254.100.205       216.254.100.240       HTTP
Continuation
   138 4.787700    216.254.100.205       216.254.100.240       HTTP
Continuation
   139 4.787726    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=62904 Win=20489 Len=0
   140 4.787774    216.254.100.205       216.254.100.240       HTTP
Continuation
   141 4.787903    216.254.100.205       216.254.100.240       HTTP
Continuation
   142 4.787929    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=65252 Win=18141 Len=0
   143 4.793555    216.254.100.205       216.254.100.240       HTTP
Continuation
   144 4.793639    216.254.100.205       216.254.100.240       HTTP
Continuation
   145 4.793665    216.254.100.205       216.254.100.240       HTTP
Continuation
   146 4.793690    216.254.100.205       216.254.100.240       HTTP
Continuation
   147 4.793712    216.254.100.205       216.254.100.240       HTTP
Continuation
   148 4.793771    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=71552 Win=11841 Len=0
   149 4.793854    216.254.100.205       216.254.100.240       HTTP
Continuation
   150 4.793879    216.254.100.205       216.254.100.240       HTTP
Continuation
   151 4.793895    216.254.100.205       216.254.100.240       HTTP
Continuation
   152 4.793916    216.254.100.205       216.254.100.240       HTTP
Continuation
   153 4.793942    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=75876 Win=7517 Len=0
   154 4.793995    216.254.100.205       216.254.100.240       HTTP
Continuation
   155 4.794468    216.254.100.205       216.254.100.240       HTTP
Continuation
   156 4.794499    216.254.100.205       216.254.100.240       HTTP
Continuation
   157 4.794520    216.254.100.205       216.254.100.240       HTTP
Continuation
   158 4.794544    216.254.100.205       216.254.100.240       HTTP
Continuation
   159 4.794580    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=82176 Win=1217 Len=0
   160 4.824230    216.254.100.240       216.254.100.205       TCP
[TCP Dup ACK 159#1] 3889 > http [ACK] Seq=318 Ack=82176 Win=64512 Len=0
   161 4.825237    216.254.100.205       216.254.100.240       HTTP
Continuation
   162 4.825320    216.254.100.205       216.254.100.240       HTTP
Continuation
   163 4.825347    216.254.100.205       216.254.100.240       HTTP
Continuation
   164 4.825369    216.254.100.205       216.254.100.240       HTTP
Continuation
   165 4.825391    216.254.100.205       216.254.100.240       HTTP
Continuation
   166 4.825435    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=88476 Win=58212 Len=0
   167 4.825497    216.254.100.205       216.254.100.240       HTTP
Continuation
   168 4.825521    216.254.100.205       216.254.100.240       HTTP
Continuation
   169 4.825550    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=90996 Win=55692 Len=0
   170 4.825598    216.254.100.205       216.254.100.240       HTTP
Continuation
   171 4.825735    216.254.100.205       216.254.100.240       HTTP
Continuation
   172 4.825760    216.254.100.205       216.254.100.240       HTTP
Continuation
   173 4.825786    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=94776 Win=51912 Len=0
   174 4.826242    216.254.100.205       216.254.100.240       HTTP
Continuation
   175 4.826277    216.254.100.205       216.254.100.240       HTTP
Continuation
   176 4.826306    216.254.100.205       216.254.100.240       HTTP
Continuation
   177 4.826329    216.254.100.205       216.254.100.240       HTTP
Continuation
   178 4.826356    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=99816 Win=46872 Len=0
   179 4.826414    216.254.100.205       216.254.100.240       HTTP
Continuation
   180 4.826438    216.254.100.205       216.254.100.240       HTTP
Continuation
   181 4.826464    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=102336 Win=44352 Len=0
   182 4.826509    216.254.100.205       216.254.100.240       HTTP
Continuation
   183 4.826701    216.254.100.205       216.254.100.240       HTTP
Continuation
   184 4.826728    216.254.100.205       216.254.100.240       HTTP
Continuation
   185 4.826758    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=106116 Win=40572 Len=0
   186 4.826798    216.254.100.205       216.254.100.240       HTTP
Continuation
   187 4.827226    216.254.100.205       216.254.100.240       HTTP
Continuation
   188 4.827252    216.254.100.205       216.254.100.240       HTTP
Continuation
   189 4.827282    216.254.100.205       216.254.100.240       HTTP
Continuation
   190 4.827304    216.254.100.205       216.254.100.240       HTTP
Continuation
   191 4.827330    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=112416 Win=34272 Len=0
   192 4.827375    216.254.100.205       216.254.100.240       HTTP
Continuation
   193 4.827670    216.254.100.205       216.254.100.240       HTTP
Continuation
   194 4.827698    216.254.100.205       216.254.100.240       HTTP
Continuation
   195 4.827721    216.254.100.205       216.254.100.240       HTTP
Continuation
   196 4.827746    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=117456 Win=29232 Len=0
   197 4.827787    216.254.100.205       216.254.100.240       HTTP
Continuation
   198 4.828205    216.254.100.205       216.254.100.240       HTTP
Continuation
   199 4.828234    216.254.100.205       216.254.100.240       HTTP
Continuation
   200 4.828266    216.254.100.205       216.254.100.240       HTTP
Continuation
   201 4.828288    216.254.100.205       216.254.100.240       HTTP
Continuation
   202 4.828319    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=123756 Win=22932 Len=0
   203 4.828366    216.254.100.205       216.254.100.240       HTTP
Continuation
   204 4.828737    216.254.100.205       216.254.100.240       HTTP
Continuation
   205 4.828763    216.254.100.205       216.254.100.240       HTTP
Continuation
   206 4.828784    216.254.100.205       216.254.100.240       HTTP
Continuation
   207 4.828805    216.254.100.205       216.254.100.240       HTTP
Continuation
   208 4.828827    216.254.100.205       216.254.100.240       HTTP
Continuation
   209 4.828846    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=130084 Win=16604 Len=0
   210 4.831221    216.254.100.240       216.254.100.205       TCP
[TCP Dup ACK 209#1] 3889 > http [ACK] Seq=318 Ack=130084 Win=20364 Len=0
   211 4.832343    216.254.100.240       216.254.100.205       TCP
[TCP Dup ACK 209#2] 3889 > http [ACK] Seq=318 Ack=130084 Win=64512 Len=0
   212 4.833477    216.254.100.205       216.254.100.240       HTTP
Continuation
   213 4.833549    216.254.100.205       216.254.100.240       HTTP
Continuation
   214 4.833573    216.254.100.205       216.254.100.240       HTTP
Continuation
   215 4.833597    216.254.100.205       216.254.100.240       HTTP
Continuation
   216 4.833641    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=135124 Win=59472 Len=0
   217 4.833700    216.254.100.205       216.254.100.240       HTTP
Continuation
   218 4.833726    216.254.100.205       216.254.100.240       HTTP
Continuation
   219 4.833750    216.254.100.205       216.254.100.240       HTTP
Continuation
   220 4.833772    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=138188 Win=56408 Len=0
   221 4.833820    216.254.100.205       216.254.100.240       HTTP
Continuation
   222 4.833864    216.254.100.205       216.254.100.240       HTTP
Continuation
   223 4.833890    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=140708 Win=53888 Len=0
   224 4.834354    216.254.100.205       216.254.100.240       HTTP
Continuation
   225 4.834384    216.254.100.205       216.254.100.240       HTTP
Continuation
   226 4.834407    216.254.100.205       216.254.100.240       HTTP
Continuation
   227 4.834431    216.254.100.205       216.254.100.240       HTTP
Continuation
   228 4.834452    216.254.100.205       216.254.100.240       HTTP
Continuation
   229 4.834478    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=146292 Win=48304 Len=0
   230 4.834525    216.254.100.205       216.254.100.240       HTTP
Continuation
   231 4.834884    216.254.100.205       216.254.100.240       HTTP
Continuation
   232 4.834911    216.254.100.205       216.254.100.240       HTTP
Continuation
   233 4.834935    216.254.100.205       216.254.100.240       HTTP
Continuation
   234 4.834958    216.254.100.205       216.254.100.240       HTTP
Continuation
   235 4.834986    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=152592 Win=42004 Len=0
   236 4.835027    216.254.100.205       216.254.100.240       HTTP
Continuation
   237 4.835053    216.254.100.205       216.254.100.240       HTTP
Continuation
   238 4.835077    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=154396 Win=40200 Len=0
   239 4.835362    216.254.100.205       216.254.100.240       HTTP
Continuation
   240 4.835391    216.254.100.205       216.254.100.240       HTTP
Continuation
   241 4.835415    216.254.100.205       216.254.100.240       HTTP
Continuation
   242 4.835445    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=158176 Win=36420 Len=0
   243 4.835486    216.254.100.205       216.254.100.240       HTTP
Continuation
   244 4.835996    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=159436 Win=38920 Len=0
   245 4.836053    216.254.100.205       216.254.100.240       HTTP
Continuation
   246 4.836082    216.254.100.205       216.254.100.240       HTTP
Continuation
   247 4.836104    216.254.100.205       216.254.100.240       HTTP
Continuation
   248 4.836125    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=162500 Win=35856 Len=0
   249 4.837229    216.254.100.240       216.254.100.205       TCP
[TCP Dup ACK 248#1] 3889 > http [ACK] Seq=318 Ack=162500 Win=61448 Len=0
   250 4.838720    216.254.100.240       216.254.100.205       TCP
[TCP Dup ACK 248#2] 3889 > http [ACK] Seq=318 Ack=162500 Win=64512 Len=0
   251 4.838813    216.254.100.205       216.254.100.240       HTTP
Continuation
   252 4.838877    216.254.100.205       216.254.100.240       HTTP
Continuation
   253 4.838909    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=165020 Win=64512 Len=0
   254 4.838963    216.254.100.205       216.254.100.240       HTTP
Continuation
   255 4.838992    216.254.100.205       216.254.100.240       HTTP
Continuation
   256 4.839031    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=167540 Win=61992 Len=0
   257 4.839070    216.254.100.205       216.254.100.240       HTTP
Continuation
   258 4.839417    216.254.100.205       216.254.100.240       HTTP
Continuation
   259 4.839443    216.254.100.205       216.254.100.240       HTTP
Continuation
   260 4.839460    216.254.100.205       216.254.100.240       HTTP
Continuation
   261 4.839482    216.254.100.205       216.254.100.240       HTTP
Continuation
   262 4.839508    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=173124 Win=56408 Len=0
   263 4.839551    216.254.100.205       216.254.100.240       HTTP
Continuation
   264 4.839855    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=174384 Win=64512 Len=0
   265 4.839898    216.254.100.205       216.254.100.240       HTTP
Continuation
   266 4.839923    216.254.100.205       216.254.100.240       HTTP
Continuation
   267 4.839946    216.254.100.205       216.254.100.240       HTTP
Continuation
   268 4.839968    216.254.100.205       216.254.100.240       HTTP
Continuation
   269 4.840018    216.254.100.205       216.254.100.240       HTTP
Continuation
   270 4.840057    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=179968 Win=58928 Len=0
   271 4.840096    216.254.100.205       216.254.100.240       HTTP
Continuation
   272 4.840328    216.254.100.205       216.254.100.240       HTTP
Continuation
   273 4.840354    216.254.100.205       216.254.100.240       HTTP
Continuation
   274 4.840380    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=183748 Win=55148 Len=0
   275 4.840421    216.254.100.205       216.254.100.240       HTTP
Continuation
   276 4.840806    216.254.100.205       216.254.100.240       HTTP
Continuation
   277 4.840835    216.254.100.205       216.254.100.240       HTTP
Continuation
   278 4.840851    216.254.100.205       216.254.100.240       HTTP
Continuation
   279 4.840875    216.254.100.205       216.254.100.240       HTTP
Continuation
   280 4.840904    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=189332 Win=49564 Len=0
   281 4.840949    216.254.100.205       216.254.100.240       HTTP
Continuation
   282 4.841158    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=190592 Win=64512 Len=0
   283 4.841205    216.254.100.205       216.254.100.240       HTTP
Continuation
   284 4.841232    216.254.100.205       216.254.100.240       HTTP
Continuation
   285 4.841259    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=193112 Win=61992 Len=0
   286 4.841310    216.254.100.205       216.254.100.240       HTTP
Continuation
   287 4.841334    216.254.100.205       216.254.100.240       HTTP
Continuation
   288 4.841353    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=194916 Win=60188 Len=0
   289 4.842655    216.254.100.240       216.254.100.205       TCP
[TCP Dup ACK 288#1] 3889 > http [ACK] Seq=318 Ack=194916 Win=63948 Len=0
   290 4.845001    216.254.100.205       216.254.100.240       HTTP
Continuation
   291 4.845084    216.254.100.205       216.254.100.240       HTTP
Continuation
   292 4.845108    216.254.100.205       216.254.100.240       HTTP
Continuation
   293 4.845134    216.254.100.205       216.254.100.240       HTTP
Continuation
   294 4.845208    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=199956 Win=64512 Len=0
   295 4.845302    216.254.100.205       216.254.100.240       HTTP
Continuation
   296 4.845339    216.254.100.205       216.254.100.240       HTTP
Continuation
   297 4.845361    216.254.100.205       216.254.100.240       HTTP
Continuation
   298 4.845377    216.254.100.205       216.254.100.240       HTTP
Continuation
   299 4.845410    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=204280 Win=63948 Len=0
   300 4.845454    216.254.100.205       216.254.100.240       HTTP
Continuation
   301 4.845478    216.254.100.205       216.254.100.240       HTTP
Continuation
   302 4.845504    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=206800 Win=61428 Len=0
   303 4.845547    216.254.100.205       216.254.100.240       HTTP
Continuation
   304 4.845826    216.254.100.205       216.254.100.240       HTTP
Continuation
   305 4.845855    216.254.100.205       216.254.100.240       HTTP
Continuation
   306 4.845876    216.254.100.205       216.254.100.240       HTTP
Continuation
   307 4.845899    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=211124 Win=57104 Len=0
   308 4.845943    216.254.100.205       216.254.100.240       HTTP
Continuation
   309 4.846371    216.254.100.205       216.254.100.240       HTTP
Continuation
   310 4.846402    216.254.100.205       216.254.100.240       HTTP
Continuation
   311 4.846424    216.254.100.205       216.254.100.240       HTTP
Continuation
   312 4.846445    216.254.100.205       216.254.100.240       HTTP
Continuation
   313 4.846479    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=217424 Win=50804 Len=0
   314 4.846534    216.254.100.205       216.254.100.240       HTTP
Continuation
   315 4.846561    216.254.100.205       216.254.100.240       HTTP
Continuation
   316 4.846581    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=219228 Win=49000 Len=0
   317 4.846627    216.254.100.205       216.254.100.240       HTTP
Continuation
   318 4.846836    216.254.100.205       216.254.100.240       HTTP
Continuation
   319 4.846863    216.254.100.205       216.254.100.240       HTTP
Continuation
   320 4.846890    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=223008 Win=45220 Len=0
   321 4.846930    216.254.100.205       216.254.100.240       HTTP
Continuation
   322 4.847559    216.254.100.205       216.254.100.240       HTTP
Continuation
   323 4.847598    216.254.100.205       216.254.100.240       HTTP
Continuation
   324 4.847619    216.254.100.205       216.254.100.240       HTTP
Continuation
   325 4.847651    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=227332 Win=40896 Len=0
   326 4.850740    216.254.100.205       216.254.100.240       HTTP
Continuation
   327 4.850820    216.254.100.205       216.254.100.240       HTTP
Continuation
   328 4.850845    216.254.100.205       216.254.100.240       HTTP
Continuation
   329 4.850869    216.254.100.205       216.254.100.240       HTTP
Continuation
   330 4.850891    216.254.100.205       216.254.100.240       HTTP
Continuation
   331 4.850959    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=233632 Win=58212 Len=0
   332 4.851037    216.254.100.205       216.254.100.240       HTTP
Continuation
   333 4.851064    216.254.100.205       216.254.100.240       HTTP
Continuation
   334 4.851080    216.254.100.205       216.254.100.240       HTTP
Continuation
   335 4.851102    216.254.100.205       216.254.100.240       HTTP
Continuation
   336 4.851152    216.254.100.205       216.254.100.240       HTTP
Continuation
   337 4.851189    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=239216 Win=52628 Len=0
   338 4.851228    216.254.100.205       216.254.100.240       HTTP
Continuation
   339 4.851599    216.254.100.205       216.254.100.240       HTTP
Continuation
   340 4.851625    216.254.100.205       216.254.100.240       HTTP
Continuation
   341 4.851648    216.254.100.205       216.254.100.240       HTTP
Continuation
   342 4.851665    216.254.100.205       216.254.100.240       HTTP
Continuation
   343 4.851693    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=244800 Win=47044 Len=0
   344 4.851734    216.254.100.205       216.254.100.240       HTTP
Continuation
   345 4.852133    216.254.100.205       216.254.100.240       HTTP
Continuation
   346 4.852163    216.254.100.205       216.254.100.240       HTTP
Continuation
   347 4.852186    216.254.100.205       216.254.100.240       HTTP
Continuation
   348 4.852208    216.254.100.205       216.254.100.240       HTTP
Continuation
   349 4.852237    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=251100 Win=40744 Len=0
   350 4.852282    216.254.100.205       216.254.100.240       HTTP
Continuation
   351 4.852301    216.254.100.205       216.254.100.240       HTTP
Continuation
   352 4.852328    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=252904 Win=38940 Len=0
   353 4.852383    216.254.100.205       216.254.100.240       HTTP
Continuation
   354 4.852494    216.254.100.205       216.254.100.240       HTTP
Continuation
   355 4.852521    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=255424 Win=36420 Len=0
   356 4.853043    216.254.100.205       216.254.100.240       HTTP
Continuation
   357 4.853071    216.254.100.205       216.254.100.240       HTTP
Continuation
   358 4.853094    216.254.100.205       216.254.100.240       HTTP
Continuation
   359 4.853117    216.254.100.205       216.254.100.240       HTTP
Continuation
   360 4.853138    216.254.100.205       216.254.100.240       HTTP
Continuation
   361 4.853166    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=261724 Win=30120 Len=0
   362 4.853209    216.254.100.205       216.254.100.240       HTTP
Continuation
   363 4.853564    216.254.100.205       216.254.100.240       HTTP
Continuation
   364 4.853592    216.254.100.205       216.254.100.240       HTTP
Continuation
   365 4.853614    216.254.100.205       216.254.100.240       HTTP
Continuation
   366 4.853636    216.254.100.205       216.254.100.240       HTTP
Continuation
   367 4.853665    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=267852 Win=23992 Len=0
   368 4.856461    216.254.100.205       216.254.100.240       HTTP
Continuation
   369 4.856572    216.254.100.205       216.254.100.240       HTTP
Continuation
   370 4.856599    216.254.100.205       216.254.100.240       HTTP
Continuation
   371 4.856625    216.254.100.205       216.254.100.240       HTTP
Continuation
   372 4.856649    216.254.100.205       216.254.100.240       HTTP
Continuation
   373 4.856714    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=274152 Win=17692 Len=0
   374 4.856823    216.254.100.205       216.254.100.240       HTTP
Continuation
   375 4.856852    216.254.100.205       216.254.100.240       HTTP
Continuation
   376 4.856868    216.254.100.205       216.254.100.240       HTTP
Continuation
   377 4.856891    216.254.100.205       216.254.100.240       HTTP
Continuation
   378 4.856914    216.254.100.205       216.254.100.240       HTTP
Continuation
   379 4.856943    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=279736 Win=12108 Len=0
   380 4.856997    216.254.100.205       216.254.100.240       HTTP
Continuation
   381 4.857306    216.254.100.205       216.254.100.240       HTTP
Continuation
   382 4.857333    216.254.100.205       216.254.100.240       HTTP
Continuation
   383 4.857361    216.254.100.205       216.254.100.240       HTTP
Continuation
   384 4.857378    216.254.100.205       216.254.100.240       HTTP
Continuation
   385 4.857406    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=285320 Win=6524 Len=0
   386 4.857450    216.254.100.205       216.254.100.240       HTTP
Continuation
   387 4.857843    216.254.100.205       216.254.100.240       HTTP
Continuation
   388 4.857872    216.254.100.205       216.254.100.240       HTTP
Continuation
   389 4.857894    216.254.100.205       216.254.100.240       HTTP
Continuation
   390 4.857915    216.254.100.205       216.254.100.240       HTTP
Continuation
   391 4.857946    216.254.100.240       216.254.100.205       TCP
3889 > http [ACK] Seq=318 Ack=291620 Win=224 Len=0
   392 5.060921    216.254.100.205       216.254.100.240       HTTP
Continuation
   393 5.222632    216.254.100.240       216.254.100.205       TCP
[TCP ZeroWindow] 3889 > http [ACK] Seq=318 Ack=291844 Win=0 Len=0
   400 5.440282    216.254.100.205       216.254.100.240       TCP
[TCP Keep-Alive] http > 3889 [ACK] Seq=291843 Ack=318 Win=6432 Len=0
   401 5.440390    216.254.100.240       216.254.100.205       TCP
[TCP ZeroWindow] [TCP Keep-Alive ACK] 3889 > http [ACK] Seq=318
Ack=291844 Win=0 Len=0
   404 5.880280    216.254.100.205       216.254.100.240       TCP
[TCP Keep-Alive] http > 3889 [ACK] Seq=291843 Ack=318 Win=6432 Len=0
   405 5.880392    216.254.100.240       216.254.100.205       TCP
[TCP ZeroWindow] [TCP Keep-Alive ACK] 3889 > http [ACK] Seq=318
Ack=291844 Win=0 Len=0
   420 6.760267    216.254.100.205       216.254.100.240       TCP
[TCP Keep-Alive] http > 3889 [ACK] Seq=291843 Ack=318 Win=6432 Len=0
   421 6.760368    216.254.100.240       216.254.100.205       TCP
[TCP ZeroWindow] [TCP Keep-Alive ACK] 3889 > http [ACK] Seq=318
Ack=291844 Win=0 Len=0
   436 8.520475    216.254.100.205       216.254.100.240       TCP
[TCP Keep-Alive] http > 3889 [ACK] Seq=291843 Ack=318 Win=6432 Len=0
   437 8.520584    216.254.100.240       216.254.100.205       TCP
[TCP ZeroWindow] [TCP Keep-Alive ACK] 3889 > http [ACK] Seq=318
Ack=291844 Win=0 Len=0
   479 12.040682   216.254.100.205       216.254.100.240       TCP
[TCP Keep-Alive] http > 3889 [ACK] Seq=291843 Ack=318 Win=6432 Len=0
   480 12.040778   216.254.100.240       216.254.100.205       TCP
[TCP ZeroWindow] [TCP Keep-Alive ACK] 3889 > http [ACK] Seq=318
Ack=291844 Win=0 Len=0
   553 19.063159   216.254.100.205       216.254.100.240       TCP
[TCP Keep-Alive] http > 3889 [ACK] Seq=291843 Ack=318 Win=6432 Len=0
   554 19.063262   216.254.100.240       216.254.100.205       TCP
[TCP ZeroWindow] [TCP Keep-Alive ACK] 3889 > http [ACK] Seq=318
Ack=291844 Win=0 Len=0





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