cisco-univ-net-mgmt-20070208.pdf

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All You Ever Wanted to Know About
Network Management in 90 Minutes
(More or Less)
Adopted from
Cisco University
NMS-1000
12529_04_2006_c2
© 2006 Cisco Systems, Inc. All rights reserved.
= CNC content
Cisco Public
1
About the Speaker
•
Dr. Pete Welcher
–Cisco
CCIE #1773, CCSI #94014, CCIP
–Specialties:
Network Design, QoS, MPLS, Wireless, Large-Scale
Routing & Switching, High Availability, Management of Networks
–Customers
include large enterprises, federal agencies, hospitals,
universities, major hotel chain
–MPLS
w/ major city government optical + MPLS deployment
–Several
large MPLS VPN customers
–MPLS
VPN Security Risk Analysis for major retailer (1700+ stores)
–Taught
many of the Cisco router/switch courses
–Reviewer
for many Cisco Press books, book proposals
–Presented
(lab sessions) MPLS VPN at Networkers 2005, 2006
•
Over 138 articles at
http://www.netcraftsmen.net/welcher/
NMS-1000
12529_04_2006_c2
© 2006, 2007 Cisco Systems, Inc. All rights reserved.
Cisco Public
2
© 2006, 2007 Cisco Systems, Inc. All rights reserved. Printed in USA.
Agenda
•
Managing Network Management
•
Managing via the Cisco IOS
•
Syslog
•
IP SLA
•
NetFlow
•
NBAR
•
Net Mgmt Stories (as time permits)
•
Summary, Q&A, References, Applause-O-Meter (if time)
NMS-1000
12529_04_2006_c2
© 2006, 2007 Cisco Systems, Inc. All rights reserved.
Cisco Public
3
Managing Network Management
NMS-1000
12529_04_2006_c2
© 2006, 2007 Cisco Systems, Inc. All rights reserved.
Cisco Public
4
© 2006, 2007 Cisco Systems, Inc. All rights reserved. Printed in USA.
Pete’s Stages of Network Management
1.
Gathering information to diagnose a problem (CLI, etc.)
2.
Collecting SNMP trap & syslog information to assist
3.
Automating configuration and IOS software management
4.
Automated performance data gathering, reporting
(baseline, capacity planning)
5.
Performance threshold-based traps
NMS-1000
12529_04_2006_c2
© 2006, 2007 Cisco Systems, Inc. All rights reserved.
Cisco Public
5
Plan Network Management
•
Plan what you buy, and don’t buy several
products at one time
•
Try the product before buying
–Demos
always look great, but generally
don’t show what the product doesn’t do well,
or what is hard to admin
–Take
the class: if it doesn’t work in class…
–Demo
it in-house: if you can’t make it
work…
n
Pl a
•
Consider a consultant
–Broader
exposure to NM products, what
people like and don’t like, what seems to
work…
•
Focus: What problem are you trying to
solve?
NMS-1000
12529_04_2006_c2
© 2006, 2007 Cisco Systems, Inc. All rights reserved.
Cisco Public
6
© 2006, 2007 Cisco Systems, Inc. All rights reserved. Printed in USA.
Determine Management Priorities
•
You can’t do it all, especially in small-
medium size organizations
•
Network Management can get labor
intense
–But
staffing rarely gets larger
•
Newton was right about INERTIA
–Existing
process may focus on managing
WAN links
–But
data center, colo facility, etc. also
need to be watched
–Services
and response times, WAN SLA’s,
etc. also candidates for monitoring
NMS-1000
12529_04_2006_c2
© 2006, 2007 Cisco Systems, Inc. All rights reserved.
Cisco Public
7
2-Dimensional FCAPS
Level Managed:
Business
Labor-intense?
Security Products?
Cisco Public
8
Service
Network
HPOV
CW LMS
Cacti,
SW Orion,
Concord,
InfoVista
Element (device)
Fault Configuration Accounting Performance Security
NMS-1000
12529_04_2006_c2
© 2006, 2007 Cisco Systems, Inc. All rights reserved.
© 2006, 2007 Cisco Systems, Inc. All rights reserved. Printed in USA.
The New Age in Net Mgmt Tools
•
20 years ago, disks were costly
–Not
any more, 1 TB USB drive for <$1K soon
•
10 years ago, CPU and bandwidth were costly
–Getting
very cheap now, e.g. Intel Dual and Quad core processors
•
Impact on Net Management:
–Smaller
scale products are scaling further and further!
–Older
products were (are) stingy with resources, like polling for data (uses
CPU and bandwidth) and storing data (uses disk space)
–Recent
products figure out “it’s a router” or “it’s a switch” and go collect a lot
of useful info
–For
years, I’ve disliked turning on polling one router or interface or
<whatever>, ONE at a time –
now we don’t have to!
–Do
you really want to be reading MIBs and figuring out what variables would
be useful to collect? The software should already know the important variables!
•
The secret of test-driving a tool
–Look
for what the vendor made hard to do (intentionally or unintentionally)
–Decide
if you can live with it
NMS-1000
12529_04_2006_c2
© 2006, 2007 Cisco Systems, Inc. All rights reserved.
Cisco Public
9
Use “Sustainable” Tools
•
Most organizations have had a lot of NM shelfware over time
–May
explain current disinterest in (platform) products
•
Base your tool selection on ease of product admin and size of your
organization
–One
person shop: Keep It Simple! (1-2 products)
–With
the right mix of tools and a dedicated / good admin, you can get
good value from several tools
–Net
mgmt tool admin MUST be a tool user, not just a sys admin
•
New generation of low admin hassle tools:
What’s Up Gold (displacing HP OV NNM?)
Cisco NAM
SolarWinds Orion
NetQoS products
Cacti
NetMRI
Cisco SDM, ASDM, CSM
NMS-1000
12529_04_2006_c2
© 2006, 2007 Cisco Systems, Inc. All rights reserved.
Cisco Public
10
© 2006, 2007 Cisco Systems, Inc. All rights reserved. Printed in USA.

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