Zhone 2004 ユーザーガイド

To display the Transport Control Protocol (TCP) Statistics report, type “T” 
on the Network Statistics menu. The TCP Statistics report displays detailed 
information about TCP packets sent and received. 

Assert sent

No. of PIM Assert messages sent.

Graft sent

No. of PIM Graft messages sent.

Graft Ack sent

No. of PIM Graft Acknowledgment messages sent.

Cand RP Adv sent

No. of PIM messages sent.

other messages sent

No. of PIM messages sent.

packets received

Total TCP packets received.

discarded for lack of 
resources

Discarded received packets due to lack of resources: 
kernel memory or packet buffers.

discarded due to internal 
errors

Discarded received packets due to internal software 
errors.

discarded for other reasons:

Discarded received packets due to other reasons listed 
in the following:

- with destination port zero

Destination port value in TCP header is zero.

- bad checksums

Checksum value in TCP header is incorrect.

- with headers too small

Size of the TCP header is less than 20 bytes.

- packets smaller than header Packet size is less than the TCP header size.

- packets larger than frame

Packet is larger than the internal packet buffer.

- acks for unsent data

Unacceptable/invalid/unsent acknowledge number in 
the TCP header.

- with data outside window

The remote host has sent data beyond the window that 
the software could advertise. 

 - with data after close

TCP packets received in a Closed state/connection.

segments with data

Total segments received, including those received in 
error. This count includes segments received on 
currently established connections.

segments with duplicate data No. of segments received with duplicate data.

segments with only an ACK

Not used

segments with a duplicate 
ACK

Not used

segments with a RST

No. of segments received with the RST (Reset) Flag bit 
on in the TCP header.

window probes

Not used