Specifications

4
10-gigabit Ethernet Fabric interface
41
Base Interface
TheBasecontrollerisconfiguredforMDI(copper),providing1000Base‐T,100‐Base‐TX,
and10Base‐Tsupport.TheBasecontrollerisconnectedtotheBASE1andBASE2
backplaneports,andthecontrollerisconnectedwithax4linktoPCIeport3ontheI/O
hub.TheEEPROMfortheBasecontrollerenablespass‐throughmodeviatheSMBus,
whichallowstheIPMCtoimplementserial‐over‐LANoneitherbaseport.
Front panel and RTM Ethernet interfaces
OneoftheGbEcontrollersisusedtoimplementdualEthernetportstoeitherthefront
panelortheRTMrearpanel.TheMDI(copper)portsareconnectedtothefrontpanel
interfacefor1000Base‐T,100‐Base‐TXand10Base‐Tsupport.TheSerDessignalsare
routedthroughtheZone3connectortotwoSFPtransceiversontheRTM.
SelectionoffrontorrearportsiscontrolledthroughaBIOSmenu(seeConfiguringthe
frontorrearEthernetportsonpage 75).
Thefront/rearGbEcontrollerisconnectedwithax4linktoPCIeport10ontheI/Ohub.
TheEEPROMforthefront/rearcontrollerenablespass‐throughmodeovertheSMBusto
allowtheIPMCtoimplementserial‐over‐LANoneitherport.RefertoSerial‐over‐LANon
page 65formoreinformation.
10-gigabit Ethernet Fabric interface
TheCPMusesanIntel82598EBcontrollertoprovidetwo10‐GbEportconnectionstothe
Fabricinterfacechannels.The10‐GbEcontrollerisconnectedtoax8PCIeportthatisPCIe
1.1compliant.Aprivate128‐KBEEPROMstoresinitializationdataandMACaddresses.
The10‐GbEcontrollerincludestwoindependentXAUIportsthatsupportthefollowing
standardEthernetinterfaces:
•10GBASE‐KX4
• 1000BASE‐KX(IEEE802.3ap)
•10GBASE‐CX4(IEEE802.3ak)
EachportalsocontainsaSerDesinterfacetosupport1000BASE‐SX/LX(opticalfiber)and
1000BASE‐BXforgigabitbackplaneapplications.Autonegotiation(asspecifiedbyIEEE
802.3apClause73)isalso
supported.
Fabric interface
TheCPMprovidesmultipleconnectivityoptionstoFabricchannels1and2.The
multiplexeroptionforFabricchannels1and2connectseitherthe10‐GbEcontrollerfor
10‐GbFabricconnectionsortheAMCbaytothebackplace.TheFabricconnectionsare
determinedbytheinterfaceE‐Keying(seeE‐Keycontrolofinterfacesonpage 59).The
defaultconfigurationistorouteFabricchannels1and2tothe10‐GbEcontrolleras
10GBase‐BX4/1000Base‐BX(seeFigure 8onpage 43).