98
C
HAPTER
5: E
THERNET
P
ORTS
ethernet monitoring
✓
Layer 2
Switching
Modules
Multilayer
Switching
Modules
summary
Displays state and statistical information for 10/100 Mbps Ethernet ports
that are being monitored. Statistics include error count, excessive
collisions, multiple collisions, late collisions, runts, and fcsErrs (frame
check sequence errors).
Valid Minimum Abbreviation
e m s
Important Considerations
■
The Ethernet monitoring feature is enabled by default, and performs
these functions:
1
Monitors 10/100Mbps Ethernet ports for excessive collisions, multiple
collisions, late collisions, runts, and FCS errors
■
Compares these error counters against user-defined thresholds
■
Disables a port that reaches an error threshold
■
Reports the reason that a port is disabled to the Administration
Console, MIB databases, and SNMP traps
■
Reenables the port after an initial backoff time interval
■
Continues monitoring
■
You can determine when a monitored port is in error and has been
disabled by these port statistics:
■
The
status
value
shown in the ethernet monitoring summary
display reports
partitioned
.
■
The
portState
value shown in the ethernet summary and
ethernet detail displays reports
partitioned
.
■
The
linkStatus
value shown in the ethernet summary and
ethernet detail
displays reports
disabled
.
■
When the monitoring feature reenables the port, port statistics
resume normal values.
Summary of Contents for 4007
Page 1: ...http www 3com com Switch 4007 Command Reference Guide Part No 10013693 Published May 2000...
Page 14: ......
Page 22: ...22 ABOUT THIS GUIDE...
Page 34: ...34 CHAPTER 1 ADMINISTRATION OVERVIEW...
Page 78: ...78 CHAPTER 4 SIMPLE NETWORK MANAGEMENT PROTOCOL SNMP...
Page 100: ...100 CHAPTER 5 ETHERNET PORTS...
Page 174: ...174 CHAPTER 9 RESILIENT LINKS...
Page 322: ...322 CHAPTER 13 VIRTUAL ROUTER REDUNDANCY VRRP...
Page 476: ...476 CHAPTER 16 INTERNET PACKET EXCHANGE IPX...
Page 552: ...552 CHAPTER 18 QUALITY OF SERVICE QOS AND RESOURCE RESERVATION PROTOCOL RSVP...
Page 566: ...566 APPENDIX A TECHNICAL SUPPORT...