Network Monitoring and Data Center Operation - SOI-Asia

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Notification of Alert How to notify alert• Selection of suitable alert notification function isindispensableGraphical• Pop up message, flashing icon on displayMail• For checking the condition, sent regularly• Sent only when there is state changeSound• Alert has no meaning if operators do not notice thenetwork trouble !Network Monitoring Tools6
- ICMP/Ping Polling 1 - Check IP reachability by ICMP echo/reply• Additional information RTT (Round Trip Time) Packet Loss TTL (Time to Live) Most standard way of checking node activity Time series RTT/Packet loss data becomes importantinformation when measuring link performanceRTT: xx msecPacket Loss: xx %TTL: xxICMP echoICMP echo reply- ICMP/Ping Polling 2 -Optional Parameter•In case of daily operation Packet size (byte) Sending interval (sec) Sending count (n) Timeout (sec) TTL (n) Pattern (0x????) etc.•At Monitoring system Sending interval Sending count Time outSet up the value which is adapted for critical level or service level!7
Page 1 and 2: Network Monitoring andData Center O
Page 3 and 4: Why Network Monitoring is necessary
Page 5: Monitoring Method 1 Examine how to
Page 9 and 10: SNMP - Version - SNMP v1 RFC1157•
Page 12 and 13: SNMP - SNMP Message Handling 2 - Co
Page 18 and 19: MRTG - Configuration 2 - Target Con
Page 20 and 21: RRDtool-Architecture -Comparison of
Page 22 and 23: RRDtool - Update -Stores a new set
Page 24 and 25: Advanced Tools for MeasuringNetwork
Page 26 and 27: BWCTL (Bandwidth Control)Users atte
Page 28 and 29: Netflow - Flow Data -Flow data expo
Page 30 and 31: Introduction of other advanced tool
Page 32 and 33: Data Center operation- Service -1.
Page 34 and 35: Professional management & operation
Page 36 and 37: Proposal for Improving NetworkServi

Network Monitoring and Data Center Operation - SOI-Asia

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