Transcript unit 6 seminar

UNIT 6 SEMINAR
Unit 5
Chapter 7 and 8, plus Lab 10
Course Name – IT482-02 Network Design
Instructor – Jan McDanolds, MS, Security+
Contact Information: AIM – JMcDanolds
Email – [email protected]
Office Hours: Wednesday 9:00 PM ET and Thursday 5:00 PM ET
UNIT 5 REVIEW
Covered last week in Seminar
Chapter 6 Addressing and Routing Architecture
Addressing Fundamentals
Routing Fundamentals
Addressing Mechanisms
Classful Addressing, Subnetting, Variable-Length Subnetting
(VLSM), Supernetting, Private IP Addressing and Network
Address Translation (NAT)
Routing Fundamentals
Establishing routing flows, Identifying and Classifying Routing
Boundaries and Manipulating Routing Flows
Addressing Strategies
Routing Strategies
Architectural Considerations
Internal and External Relationships
OPNET ITGuru – Lab 3 Switched LANs, Exercises 1, 2 and 3
UNIT 5 REVIEW
Quick check of Unit 5
Subnetting...
#1 192.168.0.0 Type the decimal equivalent
Open your Windows Calculator - Select View from Menu Bar
and then Programmer (Windows 7). Type 192, hit Bin radio
button 11000000 (if the number is less than eight then add
zeros to the beginning of the number).
#2 How do I subnet this address if I need 4 subnets?
Go to subnet calculator http://networking.ringofsaturn.com/IP/subnet.php
#3 What is the subnet mask?
How many actual host addresses will this provide?
UNIT 6 - CHAPTER 7
Network Management Architecture
Network Management – a set of functions to control, plan,
allocate, deploy, coordinate, and monitor network resources.
Multiple layers: Business Management, Service Management,
Network Management, Element Management, Network-Element
Management
Areas addressed: What NM protocol to use, will asset management
be used, will monitoring take place from a single location, will
testing be required for service-provider compliance, etc.
UNIT 6 - CHAPTER 7
NM Divided into Two Basic Functions
I.
The transport of management information across
the system
II. The management of NM information elements.
Managing Elements and Transporting Management Data
UNIT 6 - CHAPTER 7
Four Categories of NM Tasks
Monitoring for event notification
Monitoring for trend analysis and planning
Configuration of network parameters
Troubleshooting the network.
UNIT 6 - CHAPTER 7
Network Devices and Characteristics
End-to-end characteristics – measured across multiple
network devices in the path of one or more traffic flows
Per-link/per-network and per-element characteristics –
specific to the type of element or connection between elements
being monitored
UNIT 6 - CHAPTER 7
Network Management Mechanisms
Protocols – examples: simple network management protocol
(SNMP) common management information protocol (CMIP)
including CIMP over TCP/IP (CMOT)
SNMP – commands get, get-next, set and trap
MIBs – management information bases for SNMP
SNMP – used in monitoring, instrumentation and configuration
mechanisms
UNIT 6 - CHAPTER 7
SNMP Monitors
Spiceworks
http://www.spiceworks.com/
http://www.spiceworks.com/free-snmp-network-management-software/
SNMP Network Management Tool
Inventory of all your network devices & their details
Create an accurate network map of your devices
Use SNMPv3 to securely connect to network devices
Receive alerts when printer ink or toner is getting low
SNMP Monitoring With PRTG Network Monitor
http://www.paessler.com/snmp_monitoring
Test SNMP Monitoring for Free PRTG Network Monitor combines essential
network diagnostic tools. Download either the freeware or the fully functional 30
day trial
UNIT 6 - CHAPTER 7
Solarwinds
SolarWinds Standard Toolset - monitor & alert in real
time on network availability & health with tools
including Real-Time Interface Monitor, SNMP Real-Time
Graph, & Advanced CPU Load.
Standard toolset
http://www.solarwinds.com/products/toolsets/standard_features.aspx
Network Device Monitor
http://www.solarwinds.com/products/freetools/network_device_monitor/
UNIT 6 - CHAPTER 7
Architectural Considerations
FCAPS – Fault management, configuration management, accounting
management, performance management and security management
In-band management – when traffic flows for network management
follow the same network paths as traffic flows as for users and their
applications
Out-of-band management – when different paths are provided for
network management
Centralized, distributed and hierarchical management
Scaling network management traffic
Checks and balances
Managing network management data
MIB selection
Integration of OSS (operations support systems)
UNIT 6 - CHAPTER 8
Performance Architecture
How user, application, device and (existing) network requirements for
performance (capacity, delay, and RMA) will be met within the planned network
A performance architecture is the set of performance
mechanisms to configure, operate, manage, provision and
account for resources in the network that support traffic flows.
UNIT 6 - CHAPTER 8
Developing Goals for Performance
Are the performance mechanisms necessary?
What are we going to solve, add or differentiate?
Are performance mechanisms sufficient?
Ex: Should be implement QoS? Does the customer (or
our company) have the staff to maintain performance
mechanisms?
UNIT 6 - CHAPTER 8
Performance Mechanisms
Quality of Service (QoS)
– determining, setting and
acting upon priority levels of
traffic flows – including
MPLS, ToS, CIR
Resource Control –
prioritization, traffic
management, scheduling
and queuing
Service-Level
Agreements (SLAs) –
formal contracts
Policies – high-level
statements or rules about
network resource allocation
UNIT 6 - CHAPTER 8
Architectural Considerations
Evaluation of
Performance
Mechanisms
Start simple and work
to the complex
Any performance
mechanism may be
applied to any area of
the network
LAB 10
Lab 10 in Experiments Manual
Queuing Disciplines
Order of Packet Transmission
and Dropping
The objective of this lab is to
examine the effect of different
queuing disciplines on packet
delivery and delay for different
services
Various queuing disciplines can
be used to control which packets
get transmitted
(bandwidth allocation) and which
packets get dropped (buffer
space).
UNIT 6
Unit 6 Assignment
Unit 6 Project
1. List the features of SNMP. What are
the advantages of version 3? What
are some of the different MIB
formats?
2. Discuss the internal and external
relationships for network
management architecture.
3. What are the differences between
monitoring for events and monitoring
for trend analysis and planning? Give
an example of each type for: a.
Monitoring the capacity of an OC-3c
WAN link b. Monitoring the
utilization of an IP router
4. Which of the following are end-to-end
characteristics? Per-link/pernetwork/per-element characteristics?
5 points for #1 and #2. 5 points for #3
through #9. 10 points for the lab.