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Exam 300-101 Question id=450 Infrastructure Services

A network engineer is notified that several employees are experiencing network performance related issues, and bandwidth-intensive applications are identified as the root cause. In order to identify which specific type of traffic is causing this slowness, information such as the source/destination IP and Layer 4 port numbers is required. Which feature should the engineer use to gather the required information?

B. Cisco IOS EEM
C. NetFlow
D. Syslog

NetFlow Flows Key Fields
A network flow is identified as a unidirectional stream of packets between a given source and destination--both are defined by a network-layer IP address and
transport-layer source and des—nation port numbers. Specifically, a flow is identified as the combination of the following key fields:

  • Source IP address
  • Destination IP address
  • Source Layer 4 port number
  • Destination Layer 4 port number
  • Layer 3 protocol type
  • Type of service (ToS)
  • Input logical interface