Nortel 5399 安装指南
Model 5399 Remote Access Concentrator Module Hardware Installation Guide
Chapter 3 ROM Monitor Commands
3-24
stats
The stats command displays current network statistics gathered by the
ROM. Use stats along with the boot command to help isolate problems.
ROM. Use stats along with the boot command to help isolate problems.
command. The syntax is:
stats
The stats command display looks like this:
Table 3-2. Network Statistics
(continued on next page)
W
ARNING
monitor:: stats
Ethernet Statistics
Frames Received:
398
Frames Sent:
3
CRC Errors:
0
Carrier Sense Losses:
0
Alignment Errors
0
Clear to Send Losses:
0
Resource Drops:
0
Collisions Detected:
0
Bus Wait Drops:
0
Excessive Collision Losses: 0
Bad Types/Lengths:
0
Statistic
Description
Frames Received
The number of frames received.
CRC Errors
The number of CRC checksum errors detected.
Alignment Errors
The number of frames received which do not contain
enough bits to fill the last byte.
enough bits to fill the last byte.
Resource Drops
The number of packets dropped because the ROM
code could not buffer them quickly enough. The
ROM code cannot always handle back-to-back
incoming packets. The Remote Access Concentrator
accepts the first response it receives and drops all
others. Dropped packets are normal.
code could not buffer them quickly enough. The
ROM code cannot always handle back-to-back
incoming packets. The Remote Access Concentrator
accepts the first response it receives and drops all
others. Dropped packets are normal.