Resolved Error TCP segment of a reassembled PDU | Cloud
This extra TCP segment is the "HTTP 200 OK" response. Do we have to count this packet as well? If you mean "do I have to count more than the segments whose Info column just says "[TCP segment of reassembled PDU]", the answer is "yes" - when the last segment is seen, the HTTP request or response is dissected, and information about that request netsh interface tcp set global autotuning=disabled Re-run your test, and see if you notice a performance improvement. I've had to do this on a couple of laptops running Windows 7 in my house, and it's helped. If things get worse, or you don't notice any improvement, you can re-enable autotuning by: netsh interface tcp set global autotuning=normal PDU (protocol d a t a uint)--각 계층의 데이타의 형태를 의미합니다.. 즉 L2--fr a gment, L3--p a cket, L4--Segment 등으로 표현하지요 TCP segment of a re a ssembled PDU 라는 의미는 "재결합된 PDU의 세그먼트" 라는뜻임. 8 0.018621187 172.31.14.179 → 104.18.49.3 HTTP 151 GET /todos HTTP/1.1 9 0.025138648 104.18.49.3 → 172.31.14.179 TCP 54 80 → 39008 [ACK] Seq=1 Ack=98 Win=29696 Len=0 10 0.030261762 104.18.49.3 → 172.31.14.179 TCP 1514 HTTP/1.1 200 OK [TCP segment of a reassembled PDU] 11 0.030281381 172.31.14.179 → 104.18.49.3 TCP 54 39008 → 80 [ACK What this means is that the TCP stack sends a chunk of data for the NIC to break up into Maximum Segment Size (MSS) pieces to send on the network. TCP might hand the NIC 16k of data and the NIC will break it into MSS sized bites: 11 segments of 1460 bytes and one segment of the remaining 324 bytes. piece being contained within a separate TCP segment (see Figure 1.24 in the text). In recent versions of Wireshark, Wireshark indicates each TCP segment as a separate packet, and the fact that the single HTTP response was fragmented across multiple TCP packets is indicated by the “TCP segment of a reassembled PDU” in the Info column of
[TCP segment of a reassembled PDU] しらべたことは覚えているのに肝心な内容を覚えていない・・・残念。ということで書いておけば参照できるからいいですね。 これはTCPレベルでパケットを分割しましたよ・・・という意味です。多分。
Posts: 1 Joined: 3.Mar.2009 Status: offline Hello, I have some problems with isa2004. When I run a sniffer I can see a lot of packets of tcp segment of a reassembled pdu.
443 → 2073 [ACK] Seq=134 Ack=740 Win=63872 Len=1460 [TCP segment of a reassembled PDU] 32: 19.202501: 192.168.1.3: 192.168.1.4: TCP: 1514: 443 → 2073 [ACK] Seq=1594 Ack=740 Win=63872 Len=1460 [TCP segment of a reassembled PDU] 33: 19.204405: 192.168.1.3: 192.168.1.4: TCP: 1514: 443 → 2073 [ACK] Seq=3054 Ack=740 Win=63872 Len=1460 [TCP
piece being contained within a separate TCP segment (see Figure 1.24 in the text). In recent versions of Wireshark, Wireshark indicates each TCP segment as a separate packet, and the fact that the single HTTP response was fragmented across multiple TCP packets is indicated by the “TCP segment of a reassembled PDU” in the Info column of Posts: 1 Joined: 3.Mar.2009 Status: offline Hello, I have some problems with isa2004. When I run a sniffer I can see a lot of packets of tcp segment of a reassembled pdu. 5 0.248376 93.184.216.34 192.168.10.7 TCP 1514 80 → 53451 [PSH, ACK] Seq=1 Ack=76 Win=144896 Len=1448 TSval=467756515 TSecr=635755360 [TCP segment of a reassembled PDU] Transmission Control Protocol, Src Port: 80, Dst Port: 53451, Seq: 1, Ack: 76, Len: 1448 Source Port: 80 Destination Port: 53451 [Stream index: 0] [TCP Segment Len: 1448 では、TCP segment of a reassembled PDUはどうか。これはMSSを超えたためにTCPレイヤで分割されたことを意味する。ふむふむ、MSSはTCPで通信する際に格納できるユーザーデータの最大サイズを示す。 MSS = Ethernetのフレームサイズ(1518) – IPヘッダ(20) -TCPヘッダ(20) = 1460