Multiple syn's , syn/ack and ack received for single connection?

[asad <a.alii85 () gmail com>]

I have a scenario, I'm analyzing ssl (decrpyt) traffic to my webserver. I'm
investigating server and end-to-end delay issues. In between this I'm stuck
at following traffic pattern for which I need some advice/suggestion. The
patter shows:-

     client       server
    src port 1 -> 80 (syn)
    src port 2 -> 80 (syn)
    src port 3 -> 80 (syn)
    src port 4 -> 80 (syn)
    .....

     server        client
    src port 80 -> 1  (syn/ack)
    src port 80 -> 2  (syn/ack)

    client         server
    src port 1 -> 80  (ack)
    src port 2 -> 80  (ack)

After, complete of handshake I see <code>"http get request"</code> from
client. My issues is:-

 1. why are multiple syns send from
    client to server from different
    source port
 2. why server choose to
    reply on NOT all ports mainly the
    syn/ack is received by first 3
    ports.
 3. Multiple acks to different
    ports?

a sample SYN request just for analysis looks like

"694    47.583499000    192.168.1.56    192.168.1.22    TCP    66
0.000173000    50844→80 [SYN] Seq=0 Win=8192 Len=0 MSS=1460 WS=4
SACK_PERM=1"

Please help me understand this behavior.

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