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IBM Software Services for Tivoli

Scope.special for ITNM link Removal Lab Example by Ken Stone

(December 8, 2010)

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2IBM Software Services for Tivoli

Introduction:

This deinition lac!s a "ood example# This STE $ill co%er the

loadin" o a disco%ery cache in the lab, %is&ali'ation in T and

re%ie$ o simple *+ scenario# The remo%al o a lin! and ho$

*+ and %is&ali'ation can chan"e#

Online definition

The special table defines management IP addresses. A managementaddress is an IP address on a device whose only role is to manage thedevice. Management addresses do not handle network traffic.

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3.8 online documentation for scope.special

Link to 3. online doc!mentation for scope.special parameters

m"#ones

m"Address$pacem"Protocolm"O!tOf%andm"IsManagementm"Is&alid&irt!al

http://publib.boulder.ibm.com/infocenter/tivihelp/v8r1/index.jsp?topic=/com.ibm.networkmanagerip.doc_3.8/itnm/ip/wip/disco/reference/nmip_dsc_dsc_scope_db_schema_special_table.htmlhttp://publib.boulder.ibm.com/infocenter/tivihelp/v8r1/index.jsp?topic=/com.ibm.networkmanagerip.doc_3.8/itnm/ip/wip/disco/reference/nmip_dsc_dsc_scope_db_schema_special_table.html

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Lab Setup:

'ollected a discovery failover( and place the files in

)*'+OM,-var-precision

Technote for collecting files from r!nning discovery

domain"create.pl to create a test domain if necessary

$et m"se/ailover 0 1 in 2isco$chema

)P,'I$IO*"+OM,-bin-itnm"start

http://www-01.ibm.com/support/docview.wss?uid=swg21289157http://www-01.ibm.com/support/docview.wss?uid=swg21289157

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Discovery is complete

-*&n the stitcher to mo%e the topolo"y rom scratchTopolo"y to

model# Dependin" on the si'e o the topolo"y, model then sends

the topolo"y to ncim#

-.nce complete yo& can %ie$ the topolo"y in T#

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.-ncp"o4l 5!sername admin 5latency 666666 5domain *'OM$ 5service disconcp"o4l 7 I%M Tivoli *etwork Manager O8L Interface 9'opyright 7'9 1::; 5

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The visualization

-n re%ie$, the topolo"y sent to model and p&shed to ncim#

-/ere "oin" to connect to T and ta!e a loo! a simple hop%ie$ $ith

layer 2 connecti%ity#

-/ell re%ie$ the components in o&r test en%ironment#

-*e%ie$ the connecti%ity that exists

- ntrod&ce some pollin"

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The components

-cpSer%erEntity +oni"&red in co3ateSchema, the address

coni"&red or *+

-4/ ire$all

-*o&ter ro&ter

-*e%ie$ o connecti%ity

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BC select D from f!llTopology.entity%y*eighbor where m"*ame like Ho!terHE

BC go.F m"*br*ame0H/1HE m"*ame0Ho!terJ igabit,thernet=-= KHE

GF m"*br*ame0H/HE m"*ame0Ho!terJ igabit,thernet=-1 KHEG

7 < record7s9 @ Transaction complete 9BC

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ScratchTopology revie the lin!s

- 56 select 7 rom scratchTopolo"y#entityyame $here Entityame

li!e *o&ter9- 5#6 "o

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B

F elatedTo0JH/1HKE $tat!s01E Address0JHH(H,=@,=@,=@,=@,=@,=H(H1:HKE IsActive01E

,ntityOI20H1.3.?.1.6.1.:.1HE ,ntity*ame0Ho!terJ igabit,thernet=-= KHE ,traInfo0F m"$!bnetMask0H>.>.>.

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B

F elatedTo0JH/HKE $tat!s01E Address0JHH(H,=@,=@,=@,=@,=@,=H(H1=.1=.1=.1=HKE

IsActive01E ,ntityOI20H1.3.?.1.6.1.:HE ,ntity*ame0Ho!terJ igabit,thernet=-1 KHE ,traInfo0F m"$!bnetMask0H>.>.>.=HE m"o!terLinks0JH/HKE m"If2escr0Higabit,thernet=-1HE.... ,ntityType0

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SnmpLin!State "oll enabled

- The lin! at 4/, connectin" to the ro&ter "oes do$n# t becomes a

Se%erity : ;, red, root ca&se#

- n o&t attempt to &se the SnmpLin!State poll a"ainst the same lin!

rom the standpoint o the ro&ter, the e%ent is yello$, and not o&nd

to be a symptom# .n closer examination, it is o&nd to an Snmp

oll ail&re, beca&se the main address o the ro&ter has become&nreachable#

-This o&ta"e on 4/ (connectin" lin! to *o&ter) sho&ld ma!e the

*o&ter e%ent a symptom

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SnmpLin!State "oll enabled

- The cpSer%erEntity clearly has another path to the *o&ter# /e

ha%e seen the lin!s in &llTopolo"y, and scratchTopolo"y#

-

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B



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B insert into scope.special 7 m"#ones( m"Protocol(

m"IsManagement( m"O!tOf%and( m"Is&alid&irt!al 9 val!es 7 J F m"$!bnet01:( m"*etMask03< G

K( 1( 1( 1( =

9E

B

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B

BC select D from translations.ipTo%ase*ame where m"IpAddress 0H1:HEB.C go.F m"orkAddress0H11.11.11.11HE m"In$cope01E m"Protocol01E m"%ase*ame0Ho!terHE m"IpAddress0H1:HE m"%aseAddress0H11.11.11.11HE

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#estitch lab$ not restart

- There is a stitcher that $ill &pdate translations#ipToaseame $ith

the scope#special details#

-4or p&rposes o this lab, $ell &pdate translations so $e can instantly

%ie$ the res&lts o $hat scope#special can do#

-To mo%e this into prod&ction, edit DiscoSchema#c"

B B d l i i O Of d 1 h

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B BC !pdate translations.ipTo%ase*ame set m"IsO!tOf%and 0 1 wherem"IpAddress 0 H1:HEBC go

B.C select D from translations.ipTo%ase*ame where m"IpAddress 0H1:HEB.C go.F

m"orkAddress0H11.11.11.11HE m"In$cope01E m"Protocol01E m"%ase*ame0Ho!terHE m"IpAddress0H1:HE

m"%aseAddress0H11.11.11.11HE m"IsO!tOf%and01EG7 1 record7s9 @ Transaction complete 9BC

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%o ill the topology change hen restitched&

- /ell disable the pollin", and delete these speciic poller e%ents rom

the ob>ectser%er#

- insert into stitchers#actions (m?ame) %al&es

(+reatendSendTopolo"y)9

-6 "o

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- 5%oltron0@1#6 select 7 rom &llTopolo"y#entityyei"hbor $here

m?ame li!e *o&ter9-5%oltron0@2#6 "o

- #

- A

- m?brame:4/9

- m?ame:*o&terB 3i"abitEthernet0C1 9

-

- 4or lab p&rposes, !ill ncp??amos and ncp?nco"ate so each $ill

pic! &p the &pdated topolo"y, ater ncp?model is &pdated#

The lin! has been removed after restitch

B

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B



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The lin! has been removed after restitch

- 'ith the SnmpLin!State polling enabled$ and the non

management lin! removed$ (cpServer)ntity can find only one

path to the #outer

-* clear root cause$ and symptom event can be seen$ #+* can

no or! as e,pected.

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In #evie hat is !non

- Discovery cache can be loaded$ sent to model and visualized

in ncim and TI".

-+an test #+* both before and after changes to scope.special.

-* simple e,ample e,ists applied to the lab on hat the change

ould loo! li!e in DiscoSchema.cfg.

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S it h -i ll t

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Sitch or -ireall agent

- 'hereas discovery agents could not detect this$ perhaps this

management lin! and netor! lin! could be modeled

differently in the future.

/0

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/0 or even more

- This e,ample as simple 3/ I" address lin! removed. It1s

more logical to assume that a netor! ould consist of a very

large management netor! here various scope.special

statements are needed to remove the entire management

netor!.

To domains are better than one

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To domains are better than one

- Discover the netor! as before ithin a single domain. That

domain can be visualized ithin TI"$ but not used for polling.

-Discover the same netor! again ith scope.special in place

and this netor! is responsible for polling and #+*.

2uestions and perhaps some ansers

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2uestions$ and perhaps some ansers

2010_12_08_ttec_itnmv38

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