Alcatel-Lucent 7250 SAS Switch User Manual


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Alcatel-Lucent 7250 SAS | Data Sheet 3
Technical specifications
Interfaces
• Twelve100Base-FXSmallForm
FactorPluggable(SFP)ports
•Eight10/100Base-TRJ-45ports
•TwoEnhancedGigESFPuplink
ports
•TwoGigESFPports
•OptionalCESaccessmodulewith
4-portDS1/E1RJ-48cportswith
TCXOandOCXOvariants
•Fourdrycontactinputsthrough
aDB-9connector(onrearpanel)
Ethernet switching features
•Technology:ApplicationSpecific
IntegratedCircuit-(ASIC)based,
withparallelstore-and-forward
•Bridging
¬IEEE802.1dSpanningTree
Algorithm
¬IEEE802.1pPriorityQueuing
¬IEEE802.1qVLANTagging
¬IEEE802.1wRapidSpanning
TreeAlgorithm
¬IEEE802.1sMultipleSpanning
TreeAlgorithm
¬IEEE802.3adLinkAggregation
¬FastringEthernetRingRestora-
tion(<50ms)
•4092virtualLAN(VLAN)IDsper
IEEE802.1q
•Abilitytodisablelearningper
accessport
•AbilitytosetMediaAccessControl
(MAC)entrylimitsperserviceand
peraccessport
•NotificationthattheMACtable
limithasbeenreached
•Statistics:AccordingtoAccess
ControlList(ACL)
•Addresstable:16,000MACtable
entries
•Forwardingrate
¬148,000ppsper100Mb/sport
¬1,488,000ppsper1Gb/sport
•Flowcontrol:IEEE802.3xforfull
duplex;backpressureforhalf
duplextransmission
•Porttrunking:IEEE802.3adLink
Aggregation
MPLS features
•RSVP-TE:accordingtoRFC3209
•FRR,includingsupportforrapid
failuredetectionandswitching,
penultimatehoppopping(PHP),
pointoflocalrepair(PLR),and
mergepointfunctionalitywith
dynamicbypassLSPsforMPLS
ringtopologies
•MultipleLSPsandtheabilityto
usedifferentLSPsusingspecific
pseudo-wiresforVPWSonen-
hancedGigEuplinkports
•SignalingofMPLSPowerDistribu-
tionUnits(PDUs)withexpired
TimetoLive(TTL)tothecentral
processingunit(CPU)according
toRFC3443
•DefinitionofdifferentLSPsto
differenthubsandloadbalancing
amongthem
•Labelswitchedrouter(LSR)
functionality,enablingsupport
fortandemorringapplications
•Labeledgerouter(LER)function-
ality,providingfor:
¬labelstackingofuptotwo
labelsforLSPandthevirtual
circuit(VC)withanadditional
thirdlabelforOAM
¬labelstackingofuptothree
labelsforFRR+LSP+VCwithan
additionalfourthlabelforOAM
•HierarchicalVPLS(H-VPLS)spokes
•MPLStrafficengineering:Label
DistributionProtocol(LDP)and
targetedLDP(TLDP)
•Dualhoming:Oneactiveservice
distributionpoint(SDP)anda
singlebackupSDP
•LinkAggregationControlProtocol
(LACP)andstaticLinkAggrega-
tionGroups(LAGs)aresupported
withMPLS
•Abilitytorevertswitchingto
backupSDPbasedonLDP/TLDP
hellofailure
•Selectableuplinkports(forex-
ample,10/100Base-T,100Base-FX
orGigE)
•Globaldefinitionofthenumberof
retriestosetupanRSVP-TELSP
•Supportforre-signalingofRSVP-
TEbasedonLSPdemand
•Definitionofupto16calculated
orconfiguredhopsineachpath
•Supportforstrictandloosehops
onthesamepath
•Globaldefinitionoftheamountof
timethattheingressnodeholds
beforeprogrammingitsdata
planeanddeclaringtheLSPisup
•Definitionofupto16calculated
orconfiguredhopsineachpath
VPLS features
•Ratelimitingandpriorityona
per-VLANbasis
•Applicationofqualifiedand
unqualifiedMAClearningtothe
sameport
•AbilitytodisableMAClearning
perport
•Abilitytolimitthenumberof
MACentrieslearnedperservice
accesspoint
•NotificationthattheMACtable
limithasbeenreached
•Discardingofpacketswith
unknowndestinationinaVPLS
instance
•Discardingofpacketswithun-
knownsourceinaVPLSinstance
•Statisticsperserviceaccesspoint
•InternetGroupManagement
Protocol(IGMP)snooping
H-QoS features
•Per-serviceandper-forwarding
classqueuing
•Uptotwolevelsofhierarchical
scheduling
•16,000queuesforingressand
16,000queuesforegress
•Upto32forwarding-classqueues
perservice
•Congestionavoidanceandbuffer
allocationusinghierarchical
weightedrandomearlydetection
(WRED)mechanism
•Uptotwolevelsofhierarchical-
schedulingpolicingparameters,
includingcommittedinformation
rate(CIR),peakinformationrate
(PIR),committedburstsize(CBS),
maximumburstsize(MBS),and
high-prioritysettings
•Ratelimitingforbandwidthal-
location
•Separateaccess-listratelimiter
forbroadcastand/ormulticast,in
framespersecond
•Extensiveaccountingandbilling
capabilities
•Enhancedfilteringcapabilities
QoS features
•AdvancedQoS,withIEEE802.1p
anddifferentiatedservicescode
point(DSCP)filtering/marking/
re-marking
•Eightoutputqueuesperport
•Ratelimitingforbandwidthal-
location
•Settingofaseparateaccess-list
ratelimiterforbroadcastand
multicasttraffic,inframesper
second
•Mappingofuntaggedtrafficinto
aseparateVPN
•Mappingofuntaggedtrafficon
taggedports
•ACLandpolicingstatistics
•Packetandbytecounterstatistics
(ingressandegress)
CES features
•Structure-AgnosticTrafficover
Packet(SAToP)forunstructured
DS1/E1channeltransport
•CESoverPacket-SwitchedNet-
works(CESoPSN)forstructured
n*64kb/schanneltransport
•Loop,line,adaptiveandfree-run
timingoptions
•Encapsulationtechniques
¬IPpackets(asdefinedby
CESoPSN/SAToP)
¬Ethernetpackets(according
toMEF8)
¬MPLSMartiniPseudowire
EmulationEdgetoEdge(PWE3)
(asdefinedbyCESoPSN/SAToP)
•DS1specifications
¬Unframed,super-framedand
extendedsuper-framedmode
¬ANSIT1.403-1989
¬ANSIT1.102-1993
¬ANSIT1.107-2002
•E1specifications
¬Unframedandframedmodes
¬ITU-TG.703
¬ITU-TG.823trafficinterfaces
¬ITU-TG.824trafficinterfaces
¬MultiframeCRC-4generation,
multiframechannelassociated
signaling(CAS),commonchan-
nelsignaling(CCS)
OAM features
•MEFOAMthatincludesend-to-
endservicediscoveryandSLA
validationoverEthernetuplinks
andoverVPLSclouds
•IEEE802.1agimplementation,
definingproactiveanddiagnostic
faultlocalizationproceduresto
monitorthehealthoflinks,check
theconnectivityofports,detect
fabricfailures,andprovidehierar-
chicallayeringofOAMperspectives
forcustomers,serviceproviders
andoperators
•IEEE802.3ahEFMOAMimple-
mentationfortransportlayer
OAM,providingmechanismsto
monitortheoperationandhealth
ofthephysicallinkandimprove
faultisolation
•Bi-directionalForwardingDetec-
tion(BFD)tomonitoranddetect
failuresontheOpenShortest
PathFirst(OSPF)protocol
•MPLSLSPpingandtraceroute
•Serviceassuranceagent,providing
two-wayperformancemeasure-
mentofframe-delayvariation,
frame-lossration,packetloss,
andround-tripdelay
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