Using a PC Terminal Emulator to Solve Problems 127
Using a PC Terminal Emulator to Solve
Problems

Refer to Appendix C, “Terminal Emulation Settings” for setting the

parameters of a terminal emulation program. Then refer to Chapter 3,

Managing the VCN Access Concentrator, to operate the management

menus.

Ethernet Traffic

Counters

The normal frame counters indicate traffic between the VCN AC and the

Superstack II Switch 1100. Some errored frame counters indicate errors,

relating to the VCN AC port, RJ-45 cable or the SuperStack II Switch

1100.

Tab l e 17 presents normal count indications of the E thernet traffic

counters and probable causes for abnormal indications.

Table17 Ethernet Traffic Counters

Counter Counts the Frames Normal Count
Abnormal Count
Indicates
Tx frame Sent via the Ethernet
Port.
Increased as traffic is
generated
No data transmitted
Possible hardware
failure:
■VCN AC port Tx
channel
■User Ethernet
cable
■No VCN AC port
connection
Rx frame Received via the
Ethernet port
Increased as traffic is
generated
No data received
Possible hardware
failure:
■VCN AC port Rx
Channel
■User Ethernet
cable
■No VCN AC port
connection
Rx collision The VCN AC port
was unable to
receive due to
collisions on the line
Zero or steady. For
non-zero count,
reset the counter
and wait a
reasonable period of
time to check for no
significant increase.
Collisions on the
line: hardware
failure of VCN AC
port