eSpace 6805 IP Phone
Administrator Guide
6 Appendix
Issue 01 (2014-01-06)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
151
Figure 6-78
Conversations
In the basic packet information, such as all types of packets generated during mobile
phone conversions, the
TCP
and
UDP
tab pages are displayed. On the
TCP
tab page, the
following columns are included:
Address A
,
Port A
,
Address B
,
Port B
,
Bytes
,
Bytes
A->B
, and
Bytes A<-B
.
On the
TCP
and
UDP
tab pages shown in
, packets that have same address
but different port numbers are displayed in different columns but are calculated together.
Choose
Statistics
>
Summary
to calculate the total packet bytes. Before calculating the
total packet bytes, ensure that the filter criteria are set.
After the preceding packet length is calculated, subtract 14 bytes (layer 2 information)
and packet encapsulation added to the original packets by GGSN or Serving GPRS
Support Node (SGSN), such as generic routing encapsulation (GRE) or GPRS tunneling
protocol (GTP) encapsulation. The various encapsulation lengths are as follows:
−
GTP V0 header 20 bytes
GTP V1 header: The fixed part is 8 bytes and the common part is 12 bytes.
−
UDP header
8 bytes
−
IP header
20 bytes
−
GRE header
4 bytes
The window for parsing packets in the Wireshark includes:
Upper part: area for obtaining packet serial numbers
Middle part: area for parsing the selected packet
Lower part: area for displaying the original code streams for the selected packet
In the Wireshark, you can enter filter criteria in the
Filter
text box shown in
; the
packets that meet the filter criteria are displayed.
