Installation manual

Command Manual - Network Protocol
Quidway S3000-EI Series Ethernet Switches
Chapter 6 IP Performance Configuration
Commands
Huawei Technologies Proprietary
6-7
Description
Using display tcp statistics command, you can view the statistics information about
TCP packets.
The statistics information about TCP packets are divided into two major kinds which are
Received packets and Sent packets. And each kind of packets are further divided into
different kinds such as window probe packets, window update packets, duplicate
packets, and out-of-order packets. Some statistics information that is closely related to
TCP connection, such as window probe packets, window update packets, and data
packets retransmitted is also displayed. All these displayed information are measured
in packet.
For the related commands, see display tcp status, reset tcp statistics.
Example
# View statistics about TCP packets.
[Quidway]display tcp statistics
Received packets:
Total: 753
packets in sequence: 412 (11032 bytes)
window probe packets: 0, window update packets: 0
checksum error: 0, offset error: 0, short error: 0
duplicate packets: 4 (88 bytes), partially duplicate packets: 5 (7 bytes)
out-of-order packets: 0 (0 bytes)
packets of data after window: 0 (0 bytes)
packets received after close: 0
ACK packets: 481 (8776 bytes)
Duplicate ACK packets: 7, too much ACK packets: 0
Sent packets:
Total: 665
urgent packets: 0
control packets: 5 (including 1 RST)
window probe packets: 0, window update packets: 2
data packets: 618 (8770 bytes) data packets retransmitted: 0 (0 bytes)
ACK-only packets: 40 (28 delayed)
Retransmitted timeout: 0, connections dropped in retransmitted timeout: 0
Keepalive timeout: 0, keepalive probe: 0, keepalive timeout, so connections
disc
onnected : 0
Initiated connections: 0, accepted connections: 0, established connections:
0