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Network Management (Network Monitoring (Simple Network Management Protocol…
Network Management
Network Monitoring
Packet Sniffer
Capture packets flowing through ntwk
Packet Analyzers
Analyze packets captured by sniffer
Wireshark - Analyzer can filter packets
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NetFlow
Packet flow monitoring
single flow is a flow of packets from one specific place to another
builds a clear picture of the volume and flow of traffic on the network
Performance Monitors
tracks the performance of aspect of a system over time and lets you know when things are unusual
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Power and Environmental Monitors
UPS/Battery backup can act as a power monitoring tool
Report fluxuations in power supply
Temperature/humidity should be monitored and maintained
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Log MGMT
Make log files cyclical/cycling when a new log appears an old log is deleted. First in, first out
Network Operations Center (NOC)
centralized location for admins to manage all aspects of ntwk
Wireless Config and MGMT
Site Survey
Wifi Analyzer - documents all wireless ntwks in the area
Heat map - graphical representation of the RF sources
Goodput -actual number of useful bits per second
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Greenfield - N only ntwks, drops support for older devices
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MIMO
multiple in/multiple out
enables the devices to make multiple simultaneous connections called streams
VLAN Pooling
create a pool of VLANs for a single SSID and randomly assign wireless clients to one of the VLANs
Wireless Bridges
connect 2 wireless networks together, or to join wireless/wired ntwks together in the same way that wired switches do
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Ntwk Segmentation, patching and updating
Ntwk Segmentation, Patching, and Updating
Patching and Updates
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Vulnerability Patch
When vulnerability is discovered
made available on completion
sometimes pushed to users
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Segregation
done for security, performance optimization, load balancing, and compliance
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Layer 2 (Data Link) Separating a physically connected network into separate broadcast domains. (VLANs)
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Above layer 3 VPNs, separate SSIDs, separate Windows domains, and virtualization.
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VLANs
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(VTP)VLAN Trunking protocol
allows a network administrator to create a list of VLANs on one switch and then have the list of VLANs delivered to other switches within the VTP domain
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