2005-03-24 15:56:17speed

Netflow and RMON by Fluke networks

Fluke networks seminar 2005.Mar.23 09:30 台北富邦國際會議中心

如何發現應用程式的效能問題:最重要的兩個因素,使用者的抱怨,個人的使用經驗,而絕大多數都是使用者的抱怨為最重要來源

NetFlow已形成標準,version 5是目前比較普遍的標準
NetFlow is the software on Cisco IOS that can measure statics, using UDP protocol.

What is NetFlow?
Inbound traffic only
Accounts for transit traffic and traffic destined for the router
Work with Cisco Express Forwarding or fast switching
7 components:
Source IP address, Destination IP address, Source port, Destination Port, Layer 3 protocol type, Type of service Byte, Input logical interface

What is RMON?
RMON are extensions to SNMP that provide comprehensive network Monitoring to SNMP that provide comprehensive network monitor capabilities.
Monitoring inbound and outbound traffic
Source and destination of traffic
Layer 1-7 stastics and history of traffic
Events and alarms

NetFlow for monitoring/trending links continuously
RMON analyzer performs deeper analysis