22
C
HAPTER
1: S
WITCH
F
EATURES
O
VERVIEW
RMON
Remote Monitoring (RMON) is an industry standard feature for traffic
monitoring and collecting network statistics. The Switch software
continually collects statistics about the LAN segments connected to the
Switch. If you have a management workstation with an RMON
management application, the Switch can transfer these statistics to your
workstation on request or when a pre-defined threshold is exceeded.
Event Notification
You can configure your Switch to send you notification when certain
events occur. You can receive notification via email, SMS (Short Message
Server), or pager.
For more information about RMON and Event Notification, see
Chapter 7
“Status Monitoring and Statistics”
.
Webcache Support
Webcache support allows your Switch to detect and redirect HTTP web
traffic to a local Webcache. Users can then access frequently used Web
pages stored locally on the Webcache — this allows your network to
operate more efficiently and reduces WAN network traffic.
To make Webcache support available on the SuperStack 3 Switch
4400 SE, upgrade the product to the Switch 4400 SE Enhanced Software
Upgrade (3C17207).
For more information about Webcache Support, see
Chapter 9 “Using
Webcache Support”
.
Broadcast Storm
Control
Broadcast Storm Control is a system that monitors the level of broadcast
traffic on that port.
If the broadcast traffic level rises to a pre-defined
number of frames per
second (threshold), the broadcast traffic on the port
is blocked until the broadcast
traffic level drops below the threshold.
This
system prevents the overwhelming broadcast traffic that can result from
network equipment which is faulty or configured incorrectly.
VLANs
A Virtual LAN (VLAN) is a flexible group of devices that can be located
anywhere in a network, but which communicate as if they are on the
same physical segment. With VLANs, you can segment your network
without being restricted by physical connections — a limitation of
Содержание 3C17203 - SuperStack 3 Switch 4400
Страница 8: ...GLOSSARY INDEX ...
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Страница 26: ...26 CHAPTER 1 SWITCH FEATURES OVERVIEW ...
Страница 44: ...44 CHAPTER 3 USING MULTICAST FILTERING ...
Страница 55: ...How STP Works 55 Figure 13 STP configurations ...
Страница 58: ...58 CHAPTER 4 USING RESILIENCE FEATURES ...
Страница 84: ...84 CHAPTER 7 STATUS MONITORING AND STATISTICS ...
Страница 92: ...92 CHAPTER 8 SETTING UP VIRTUAL LANS ...
Страница 98: ...98 CHAPTER 9 USING WEBCACHE SUPPORT ...
Страница 120: ...120 CHAPTER 12 POWER MANAGEMENT AND CONTROL ...
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Страница 126: ...126 APPENDIX A CONFIGURATION RULES ...
Страница 134: ...134 APPENDIX B NETWORK CONFIGURATION EXAMPLES ...
Страница 150: ...150 GLOSSARY ...