Enterasys Matrix 7H4385-49 Installation Guide download pdf (Page 28)

Backplane Connections and Installation Rules

3-4 Installation

Example 3 (Figure 3-1, C)

Showschassisslots1through5populatedwithfirstandsecondgenerationmodules(6x1xxand

6x2xx).Ifa6x1xxor6x2xxseriesmoduleisinstalledinslot6or7,itwilloperateinstandalone

mode(nobackplaneconnectivity).Likethe6x3xxmodules,the6x1xxand6x2xxmodulesoperate

asindividual

moduleswithseparateIPaddresses,andeachoneisconfiguredusingLocal

Management.

Rule:The6x1xxand6x2xxmodulescancommunicatewitheachotherwhentheyareinstalledin

chassisslots1through5intheMatrix E7chassis.Ifinstalledinslot6or7,theyoperatein

standalonemode.

Example 4 (Figure 3-1, D)

Showschassisslots1through5populatedwithamixof6x1xx,6x2xx,and6x3xxmodulesand

onlythirdgenerationmodulesinslots6and7.

Inthismodulearrangement,the6x3xxmoduleprovidesaproxybridge,whichenablesthe6x1xx

and6x2xxmodulestocommunicatewith6x3xxmodulesinslot

6or7.Ifmorethanone6x3xx

moduleisinstalledinslots1to5,themoduleinthelowestnumberedslotperformstheproxy

functionforslots6and7.Therefore,ifa6x3xxmoduleisalreadyperformingtheproxyfunction,

andanother6x3xxmoduleisinsertedintoa

lowernumberedslot,connectivitywillbetemporarily

interrupted,asthenewboardtakesovertheproxyfunction.Whena6x3xxmoduleinalower

numberedslotisremoved,andthereisa6x3xxmoduleinahighernumberedslot,communication

isnotinterrupted.

ForLocalManagement,pluggingtheLocalManagementconnection

intothe6x3xxmoduleswill

allowmanagementconnectionstoall6x1xx,6x2xx,and6x3xxmodules.IftheLocalManagement

connectionistoa6x1xxor6x2xxboard,onlythemodulesinthefirstfiveslotswillberecognized

bythemanagementclient.

Rule:Theremustbeatleastone6x3xxmodule

inslots1through5toenablecommunications

betweenthe6x1xx,6x2xx,and6x3xxmodules.

Example 5 (Figure 3-1, E)

Showschassisslots1and5populatedwith6x1xx,6x2xxmodules,respectively;slots2through4

withDFE‐Platinummoduleswithoutabridgingmodule;andslots6and7with6x3xxmodules.

Inthismodulearrangement,the6x1xxand6x2xxmodulesinslots1and5canonlycommunicate

witheach

other,becausethereisno6x3xxmoduleinoneofthefirstfiveslotstoserveastheproxy

bridgetocommunicatewiththe6x3xxmodulesinslots6and7.The7x4xxxDFE‐Platinum

modulesinslots2,3,and4willoperateunderoneIPaddress.Sincethere

isnobridgingmodule

(7H4382‐25,7H4382‐49,7H4383‐49,or7H4385‐49),theDFE‐Platinummoduleswillnot

communicatewithanyothermodulesinthechassis.

Rule:Inthisexample,theremustbeatleastone6x3xxseriesmodule,andabridgingmodule

(7H4382‐25,7H4382‐49,7H4383‐49,or

7H4385‐49)inslots1through5toenablecommunications

betweenallgenerationsofmodulesinthechassis.

Example 6 (Figure 3-1, F)

ThemodulearrangementinthisexampleissimilartotheoneshowninFigure 3‐1,E and

describedinExample5.Theonlydifferenceisthatabridgingmoduleisinstalledinslot2,

enablingallmodulestocommunicatewitheachother.

Rule:

Inthisexample,theModelNumberservesasboththeFTM1‐to‐FTM2bridgeandthefive‐

to‐sevenslotproxybridge.The6x3xxdoesnotserveasaproxybridgeinthisconfiguration

becausetheModelNumberisinaslotwithalowernumber.Youcanusethe7H4382

‐25,

7H4382‐49,7H4383‐49,or7H4385‐49asabridgingmoduledependingontheneed.

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