Catalyst 4500 Bootcamp
Chapter 1: ArchitectureFebruary 2009
Richard Licon
Technical Marketing Engineer
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 1
Campus Switching Solutions Technology Group
AgendaAgenda
Chassis Specifications
Chassis Architecture
Power Supplies
Supervisor Specifications
Supervisor Architecture
Line Card Specifications
Line Card Architecture
Packet Walk
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 2
Catalyst 4500 E Series Chassis FamilyNew E Series chassis designed to support higher bandwidth per slot line cards
Catalyst 4500 E‐Series Chassis Family
WS‐C4507R‐E7 slot chassisWith Redundant
WS‐C4510R‐E10 slot chassis withRedundant supervisors
Supervisorsp
WS‐C4503‐E3 slot chassisWith single
WS‐C4506‐E6 slot chassisWith Single
Supervisor supervisor
C t l t 4500 “E” S i Ch iCatalyst 4500 “E” Series Chassis Backward
compatible with all line cards and
Maximum Inline Power (PoE)
per line card slot ‐
24 Gbps/slot capacity with Sup6‐E; Capable of
Up to 384 Access Ports ;
Dual Non‐Blocking
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 3
line cards and supervisors
per line card slot ‐1440 W
Capable of 48 Gbps/Slot
Dual Non‐Blocking 10GbE Uplinks
Catalyst 4503 E Series Chassis Specifications
Supervisor Support:
Catalyst 4503 E‐Series Chassis Specifications
SupII+, SupII+TS, SupII+10GESupIV, SupV, SupV‐10GE, & Sup6‐E
Single Supervisor Slot (Slot 1)2 x Power Supplies2 x Power Supplies2 x Linecard Slots1 x Fan Tray
Integrated Voice PowerIntegrated Voice Power
96 Ports 10/100/1000 + 2 Uplinks116 Ports 10/100/1000 with SupIl+TS*
Dimensions:Dimensions:Rack Units: 7RUHeight: 12.25”Width: 17.31”Depth: 12 50”
PID: WS‐C4503‐EDepth: 12.50
Minimum Software Requirement:Cisco IOS 12.2(37)SG Cisco IOS 12.2(37)SG –– Classic SupsClassic SupsCisco IOS 12.2(40)SG Cisco IOS 12.2(40)SG –– Sup6Sup6‐‐EE* SupII+TS Only Supported in 3 slot chassis
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( )( ) pp* SupII+TS Only Supported in 3 slot chassis
Catalyst 4506 E Series Chassis Specifications
Supervisor Support:
Catalyst 4506 E‐Series Chassis Specifications
Supervisor Support: SupII+, SupII+10GESupIV, SupV, SupV‐10GE, & Sup6‐E
Single Supervisor Slot (Slot 1)Single Supervisor Slot (Slot 1)2 x Power Supplies 5 x Linecard Slots1 x Fan Tray
Integrated Voice Power
240 Ports 10/100/1000 + 2 Uplinks
Dimensions:Rack Units: 10RUHeight: 17.38”Width: 17.31”Depth: 12.50”ept 50
Minimum Software Requirement:Cisco IOS 12.2(37)SG Cisco IOS 12.2(37)SG –– Classic SupsClassic SupsCisco IOS 12.2(40)SG Cisco IOS 12.2(40)SG –– Sup6Sup6‐‐EE
PID: WS‐C4506‐E
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Catalyst 4507R E Series Chassis SpecificationsCatalyst 4507R E‐Series Chassis Specifications
Supervisor Support: SupII+ SupII+10GESupII+, SupII+10GESupIV, SupV, SupV‐10GE, & Sup6‐E
Redundant Supervisor Slots (Slots 3 & 4)2 x Power Supplies2 x Power Supplies5 x Linecard Slots1 x Fan TrayRedundant Clock ModuleRedundant Fabric ModuleRedundant Fabric Module
Integrated Voice Power
240 Ports 10/100/1000 + 2 Uplinks
Dimensions:Rack Units: 11RUHeight: 19.19”Width: 17.31”
PID: WS‐C4507R‐E
dt 3Depth: 12.50”
Minimum Software Requirement:Cisco IOS 12.2(37)SG Cisco IOS 12.2(37)SG –– Classic SupsClassic Sups
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Cisco IOS 12.2(40)SG Cisco IOS 12.2(40)SG –– Sup6Sup6‐‐EE
Catalyst 4510R E Series Chassis SpecificationsCatalyst 4510R E‐Series Chassis Specifications
Supervisor Support:p ppSupV, SupV‐10GE, & Sup6‐E
Redundant Supervisors (Slots 5 & 6)2 x Power Supplies8 Li d Sl8 x Linecard Slots1 x Fan TrayRedundant Clock ModuleRedundant Fabric Module
Integrated Voice Power
384 Ports 10/100/1000 + 2 Uplinks
Dimensions:Dimensions:Rack Units: 11RUHeight: 19.19”Width: 17.31”D th 12 50”Depth: 12.50”
Minimum Software Requirement:Cisco IOS 12.2(37)SG Cisco IOS 12.2(37)SG –– Classic SupervisorsClassic SupervisorsCisco IOS 12 2(40)SGCisco IOS 12 2(40)SG –– Sup6Sup6‐‐EE
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 7
PID: WS‐C4510R‐E
Cisco IOS 12.2(40)SG Cisco IOS 12.2(40)SG Sup6Sup6 EE
AgendaAgenda
Chassis Specifications
Chassis Architecture
Power Supplies
Supervisor Specifications
Supervisor Architecture
Line Card Specifications
Line Card Architecture
Packet Walk
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 8
Catalyst 4500 ArchitectureCentralized Architecture
Catalyst 4500 Architecture
Shared memory switchPassive Backplane
All forwarding queuing security isCPU / SDRAM
All forwarding, queuing, security is implemented on the Supervisor
The individual line cards are d d b ‘ ’
Forwarding EngineFFE /VFE
considered to be ‘transparent’Contain simple “stub” ASICs and the PHYs
/
Shared Memory FabricPPE / IPP
No local switching
Each classic line card has 6 Gbps (full duplex) connections to the central forwarding engine
Each E‐Series line card has 24 Gbps (full duplex) connection to the
Line Card Line Card Line Card Line Card Line Card
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( p )central forwarding engine
Catalyst 4510R E Chassis Backplane
Requires SupV, SupV‐10GE, Or
Catalyst 4510R‐E Chassis Backplane
EEPROMPS 1 PS 2
10 Gig Connectors Supervisor V
Supervisor 6‐E
24 or 6 Gbps
24 or 6 Gbps
24 or 6 Gbps
96 Gbps of fabric capacity
92 Gbps to line cards + 4 x 1Gbps shared between sups
Slot ten operates as a flex‐slot and will support 2 x 1GEor WAN
an Tray
24 or 6 Gbps
Supervisors
Supervisor
Redundant ClockModule
Supervisor V‐10GE 136 Gbps of fabric capacity
96 Gbps to line cards + 8 x 1Gbps shared between sups
‘or’
Fa
24 or 6 Gbps
6 Gbps
6 Gbps
p or
96 Gbps to line cards + 2 x 20 Gbps shared between sups
Supervisor 6‐E320 Gbps of fabric capacity
b l d ( l d l )6 Gbps
6 Gbps
Fabric RedundancyModules
120 Gbps to E‐Series line cards (Slots 1‐4 and Slot 7)
18 Gbps to Classic line cards (Slots 8 ‐ 10)
20 Gbps shared between sups for 10GbE uplinks
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Full Capacity for Tenth Slot requires SupV‐10GE or Sup6‐E
Catalyst 4507R E Chassis Backplane4507R‐E Backplane Specs:
Catalyst 4507R‐E Chassis Backplane
EEPROMPS 1 PS 2 Dual data or data + voice PSUs
Integrated inline power
24 or 6 Gbps
24 or 6 Gbps
10 Gig Connectors Redundant clock
Chassis EEPROM stores system MAC addresses
an Tray
24 or 6 Gbps
Supervisor
Supervisor
24 or 6 Gbps
Redundant ClockModule
addresses
Fan tray for system cooling
NEBS level threeFa
24 or 6 Gbps
24 or 6 Gbps
24 or 6 Gbps
F b i R d d
NEBS level three
Chassis configurationSlot 1,2,5‐7—Line card slots
Fabric RedundancyModules Slot 3—Supervisor engine (no line cards)
Slots 4—Redundant supervisor engine (no line cards)
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Fabric redundancy modules on backplane enable redundancy support with existing line cards
Classic & E Series Line Card SlotsClassic & E‐Series Line Card Slots
Classic Chassis ‐ Bandwidth per Sloti i h b i Classic Chassis ‐ Bandwidth per Slot6 dedicated lanes to Supervisor
Each lane operates at 1 Gbps
O l t Cl i li d
Supervisor Switch Fabric
bps
bps
bps
bps
bps
bps
Only supports Classic line cards
E‐Series Chassis – Bandwidth per Slot
1 Gb
1 Gb
1 Gb
1 Gb
1 Gb
1 Gb
Classic Line Card8 dedicated uplink lanes to Supervisor
Each lane runs at variable speeds
‘when’Classic line cards are inserted ‐6 lanes operate at 1 Gbps
Supervisor Switch Fabric
bps
bps
bps
bps
bps
bps
bps
bps
‘when’E‐Series line cards are inserted ‐
3 Gb
3 Gb
3 Gb
3 Gb
3 Gb
3 Gb
3 Gb
3 Gb
E‐Series Line Card
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 12
8 lanes operate at 3 Gbps
AgendaAgenda
Chassis Specifications
Chassis Architecture
Power Supplies
Supervisor Specifications
Supervisor Architecture
Line Card Specifications
Line Card Architecture
Packet Walk
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 13
Catalyst 4500 Power Supplies DataCatalyst 4500 Power Supplies ‐ Data
Data Only Deployments3, 6, and 7 Slot Chassis
PWR‐C45‐1000AC1000W AC Data Only
Power Supply
, ,Cisco IOS 12.1(12c)EWHeat Dissipation: 943 BTU/hr12A @ 100V or 5A @ 240V
PWR‐C45‐1400DC1400W Triple Input DC
Data Only DeploymentsDesigned for 10 Slot Chassis
1400W Triple Input DCPower Supply
Data Only Deployments
PWR‐C45‐1400AC1400W AC Data Only
Power Supply
Designed for 10 Slot ChassisCisco IOS 12.2(18)EWHeat Dissipation: 1048 BTU/hr16A @ 100V or 7A @ 240V
Data Only DeploymentsService Provider
Cisco IOS 12.2(25)EWHeat Dissipation: 1048 BTU/hr
Three Low Current Inputs to Reduce Cost
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Three Low Current Inputs to Reduce CostTwo ‐48VDC @ 15AOne ‐48VDC @ 12.5 A
Catalyst 4500 Power Supplies PoE + DataCatalyst 4500 Power Supplies – PoE + Data
Entry Level PoE Power Supply3,6, and 7 slot Chassis Mid‐Range PoE Power Supply
S t d i All Ch i T
PWR‐C45‐2800ACV2800W AC Data + Voice
Power Supply
PWR‐C45‐1300ACV1300W AC Data + Voice
Power Supply
Cisco IOS 12.1(12c)EWData Max: 1000WPoE Max: 800WTotal Power: 1300WHeat Dissipation: 1568 BTU/hr
Supported in All Chassis TypesCisco IOS 12.1(12c)EWData Max: 1400WPoE Max: 1400WTotal Power: 1400WHeat Dissipation: 1568 BTU/hr
16A @ 100V or 7A @ 240VTotal Power: 1400WHeat Dissipation: 2387 BTU/hr16A @ 200V
High End PoE Power SupplySupported in All Chassis Types High End PoE Power Supply
PWR‐C45‐4200ACV4200W AC Data + Voice
Power Supply
PWR‐C45‐1400DC‐P1400W DC Data + Voice
Power Supply
Supported in All Chassis TypesCisco IOS 12.1(13)EWHeat Dissipation: 2905 BTU/hrPoE Max: Up to 7500WData: 31A @ ‐60VDC
Supported in All Chassis TypesCisco IOS 12.2EWData Max: 1400WPoE Max: 3700WTotal Power: 4200W
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Power SupplyInline: 180A @ ‐48VDC Total Power: 4200W
Heat Dissipation: 3580 BTU/hrTwo 12A @ 100V orTwo 12A @ 200V
Catalyst 4500 Power Supplies Power Shelf
External AC Power Shelf
Catalyst 4500 Power Supplies – Power Shelf
External AC Power Shelf
High Density PoE Deployments2500W PS
Used with 1400‐WDC‐P PS
AC Power Shelves can be StrappedProvides up to 7500W DC Power
StrappedShelves
2500W AC Data + VoiceSh lf
PWR‐4502
Provides up to 7500W DC Power
Cisco IOS 12.1(13)EW
Power Shelf Integrated PoE: 2500W Per PSData: 1400WMax Power: 7500W
Heat Dissipation: 1210 BTU/hrPer 2500W Power Supply
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PWR‐C45‐1400DC‐P1400W DC Data + Voice
Power Supply
15A @ 200V
Catalyst 4500 Power Configuration Modes
S2
Catalyst 4500 Power Configuration Modes
Redundant Mode (default) Combined ModeRedundant Mode (default)
Redundant reserves half the available power per supply in case of
Combined Mode
Combines and provides the total il bl f b th li tavailable power per supply in case of
a failure and is only available with two supplies
available power from both supplies to the system If a failure occurs, the system evaluates current power requirementsrequirements
C4500-E#show power suppliesPower supplies needed by system : 1
C4500-E#show power suppliesPower supplies needed by system : 2
Both Power Supplies
Power supplies needed by system : 1 Power supplies needed by system : 2
Must Be the Same Type in Either Configuration
Mode
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AgendaAgenda
Chassis Specifications
Chassis Architecture
Power Supplies
Supervisor Specifications
Supervisor Architecture
Line Card Specifications
Line Card Architecture
Packet Walk
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 18
Basic Layer 3 SupervisorsBasic Layer 3 Supervisors
Supervisor IISupervisor II‐‐Plus Plus Supervisor IISupervisor II‐‐PlusPlus‐‐TS TS Supervisor IISupervisor II‐‐PlusPlus‐‐10GE 10GE
Bandwidth: 64 GbpsThroughput: 48 Mpps
l k b
Bandwidth: 64 GbpsThroughput: 48 Mpps
l k b ( )
Bandwidth: 108 GbpsThroughput: 81 Mpps
l k b bUplinks: 2 x GbECPU: 266 MHzDRAM: 256 MBNumber of Routes: 32K FIB EntriesQoS / Security Entries: 32K
Uplinks: 8 x GbE (SFP) & 12 x 10/100/1000 PoE
CPU: 266 MHzDRAM: 256 MBNumber of Routes: 32K FIB Entries
Uplinks: 4 x GbE & 2 x 10GbECPU: 667 MHzDRAM: 256 MB / 512 MBNumber of Routes: 32K FIB EntriesQoS / Security Entries: 32KQoS / Security Entries: 32K
Input / Output Policers: 512/512Supported in 3,6,7 Slot Chassis
Number of Routes: 32K FIB EntriesQoS / Security Entries: 32KInput / Output Policers: 512/512Supported in 3 Slot Chassis Only
QoS / Security Entries: 32KInput / Output Policers: 512/512Supported in 3,6,7 Slot Chassis
Basic L2/L3/L4 ServicesRIP, Static Routes, EIGRP Stub
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Classic Line Cards OnlySupported in Both “E” and Non “E‐Series” Chassis
Enhanced Layer 3 SupervisorsEnhanced Layer 3 Supervisors
Supervisor VSupervisor V 10GE10GESupervisor IVSupervisor IV Supervisor VSupervisor V
Bandwidth: 64 GbpsThroughput: 48 Mpps
l k b
Bandwidth: 96 GbpsThroughput: 72 Mpps
l k b
Bandwidth: 136 GbpsThroughput: 102 Mpps
l k b b
Supervisor VSupervisor V‐‐10GE 10GE Supervisor IVSupervisor IV Supervisor VSupervisor V
Uplinks: 2 x GbECPU: 333 MHzDRAM: 512 MBNumber of Routes: 128K FIB EntriesQoS / Security Entries: 64K
Uplinks: 2 x GbE CPU: 400 MHzDRAM: 512 MBNumber of Routes: 128K FIB EntriesQoS / Security Entries: 64K
Uplinks: 4 x GbE & 2 x 10GbECPU: 800 MHzDRAM: 512 MBNumber of Routes: 128K FIB EntriesQoS / Security Entries: 64KQoS / Security Entries: 64K
Input / Output Policers: 1K/1KOptional Netflow Daughter CardSupported in 3,6,7 Slot Chassis
QoS / Security Entries: 64KInput / Output Policers: 1K/1KOptional Netflow Daughter CardSupported in 3,6,7, and 10 Slot Chassis
QoS / Security Entries: 64KInput / Output Policers: 8K/8KIntegrated Netflow ASICSupported in 3,6,7, and 10 Slot Chassis
Full L2/L3/L4 ServicesBGP, OSPF, IS‐IS, EIGRP, VRF‐Lite, PBR
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Classic Line Cards OnlySupported in Both “E” and Non “E‐Series” Chassis
Supervisor 6 E
WS‐X45‐Sup6‐E
Supervisor 6‐E
Bandwidth: 320 Gbps Throughput: 250 Mpps (IPv4)Throughput: 250 Mpps (IPv4)
125 Mpps (IPv6)Uplinks: 2 x 10GbE or 4 x GbE SFPs via TwinGig ModuleCPU: 1.33 GHzDRAM: 512 MB (Default) / 1 GB (Upgradeable)Number of Routes: 256K FIB Entries (1 GB SDRAM)64K Ingress Security / QoS Entries64K Egress Security / QoS EntriesInput / Output Policers: 16K / 16KSupported in 3 6 7 and 10 Slot Chassis – E‐Series & ClassicDual Purpose Uplink Ports Supported in 3,6,7 and 10 Slot Chassis E‐Series & ClassicE‐Series & Classic line card SupportNew image type: cat4500e‐entservices‐mz
Dual Purpose Uplink PortsTwo 10 GbE or Four 1 GbEwith Twin Gig Module
Full L2/L3/L4 ServicesBGP OSPF PBR EIGRP VRF Lite
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BGP, OSPF, PBR, EIGRP, VRF‐LiteIPv6 in Hardware
Catalyst 4500 Supervisor RolesCatalyst 4500 Supervisor Roles
Basic Layer 3 SupervisorsIP Base – cat4500e‐ipbase
EIGRP‐Stub, RIPv2, Static Routes
SiSi SiSi Enhanced Layer 3 SupervisorsEnterprise Services‐ cat4500e‐entservices
SiSiSiSi
BGP, EIGRP, OSPF, IS‐IS, VRF‐Lite, PBR, IPX, Appletalk
Two major classes of SupervisorsSiSiSiSi Two major classes of SupervisorsBasic Layer 3 Supervisors & Enhanced Layer 3 Supervisors
Difference is largely a question of Hardware Capacity &
SiSiSiSi
Software Features
All Supervisors support enhanced L2/3/4 services, e.g., QoS, Security, Intelligent PoE
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 22
AgendaAgenda
Chassis Specifications
Chassis Architecture
Power Supplies
Supervisor Specifications
Supervisor Architecture
Line Card Specifications
Line Card Architecture
Packet Walk
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 23
Classic Supervisor Block DiagramIngress
Security / QoSACLs
Forwarding Tables
Classic Supervisor Block Diagram
CPUPacket Memory STP Memory ICC
TCAMFLC
TCAMCPU FPGA
FWD MemoryPLD
FWD Memory1
FWD Memory2
PPE (Packet Processing Engine)
ASIC
FFE(Fast Forwarding Engine)
ASICPTD
Fabric Ports
OCCTCAM
DBL Memory
MulticastExpansion TableQueue Memory
EgressSecurity / QoS
ACLs
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 24
Congestion Avoidance
Supervisor 6 E Board LayoutSupervisor 6‐E Board Layout
CPUIPP CPU
VFEXGStubXGStub XGStubXGStub
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Supervisor 6 E Board Layout ComponentsSupervisor 6‐E Board Layout ‐ ComponentsBackplane ConnectorsBackplane Connectors
CPUIPP CPUPacket Packet MemoryMemory
Packet Packet MemoryMemory
VFEXGStubXGStub
TCAMsTCAMsSDRAMSDRAM
XGStubXGStubTCAMsTCAMs
TCAMsTCAMs
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 26
Supervisor 6 E Block DiagramIngress
Security / QoSACLs
Forwarding Tables
Supervisor 6‐E ‐ Block Diagram
CPUPacket Memory STP Memory ICC
TCAMFLC
TCAMCPU FPGA
FWD MemoryPLD
FWD Memory1
FWD Memory2
IPP (Intelligent Packet Processor)
ASIC
VFE (Very Fast Forwarding Engine)
ASICPTD
Fabric Ports
OCCTCAM
DBL Mem RETQueue Memory
EgressSecurity / QoS
ACLs
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 27
Congestion Avoidance
Supervisor 6 E CPU SubsystemSupervisor 6‐E ‐ CPU Subsystem
CPU System SDRAM
CPU Sub‐System
CPU FPGA
Packet MemorySwitching Sub‐System
IPP (Intelligent Packet Processor)
VFE (Very Fast Forwarding Engine)
PLDFabric Ports
(Intelligent Packet Processor)ASIC
(Very Fast Forwarding Engine)ASICPTD
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 28
AgendaAgenda
Chassis Specifications
Chassis Architecture
Power Supplies
Supervisor Specifications
Supervisor Architecture
Line Card Specifications
Line Card Architecture
Packet Walk
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 29
E Series Line Cards 24 Gbps Slot CapacityE‐Series Line Cards – 24 Gbps Slot Capacity
WS‐X4648‐RJ45V‐E10/100/1000 802.3af PoE 48‐port (RJ‐45) Module
2:1 OversubscribedCi R l 12 2(40)SG
WS‐X4606‐X2‐Eb h
Up to 6 Ports 10GbE X2 or12 Ports 1GbE SFP via TwinGig Converter Module48‐port (RJ‐45) Module Cisco Release 12.2(40)SG
Capable of 20W Per PortPremium Module ‐
Capable of 30W Per PortL2‐L4 Jumbo Frame Support
6‐port 10 Gigabit EthernetX2 Module
gTwinGig Modules used in groups of three” ports 1‐3 or ports 4‐6Cisco IOS 12.2(40)SGIEEE 802.3L2 L4 Jumbo Frame Support
(up to 9216 bytes) IEEE 802.3af
Cisco Prestandard802.3x flow controlEi h 6
L2‐L4 Jumbo Frame Support6 Ports 10GbE (2.5:1)
24 Port SFP Pluggables:GLC‐BX‐D, GLC‐BX‐U, GLC‐SX‐MM, GLC‐ZX‐SM, GLC‐T, CWDM, and DWDM
Eight 6‐port groups ‐3 Gbps per port group (2:1)
WS‐X4624‐SFP‐EGigabit Ethernet Fiber
Functionally Transparent
Cisco IOS Release 12.2(44)SGL2‐L4 Jumbo Frame SupportLine Rate – Non‐Blocking
WS‐X4648‐RJ45V+E10/100/1000 802.3af Premium PoE
48 port (RJ 45) Module
24‐port Module (SFP)
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Functionally TransparentSupported in E‐Series ChassisSupported with Sup6‐E Only
48‐port (RJ‐45) Module
Classic Line Cards: Gigabit Ethernet Copper PoEClassic Line Cards: Gigabit Ethernet Copper ‐ PoE
WS X4524 GB RJ45V
24 Port – 4:1 OversubscribedSix 4‐port groups, providing 1 Gbps Per Port‐GroupCi IOS 12 2(20)EWWS‐X4524‐GB‐RJ45V
10/100/1000 PoE IEEE 802.3af 24 Ports (RJ‐45) Module
Cisco IOS 12.2(20)EW
48 Port – 8:1 OversubscribedSix 8‐port groups, providing 1 Gbps Per Port‐Group
WS‐X4506‐GB‐T10/100/1000 PoE IEEE 802.3af
6 Ports (RJ‐45) and 1000BASE‐X (SFP)Per Port GroupCisco IOS 12.2(18)EW
IEEE 802.3x flow control IEEE 802.3af, Cisco PreStandard PoE Any Combination of 6 Ports active at one time
Provides Full Line Rate (Non Blocking)Designed to power IP Phones, wireless Base Stations, Video Cameras, and other IEEE‐compliant PDs
Provides Full Line‐Rate (Non‐Blocking)Cisco IOS 12.2(20)EWA
L2‐L4 Jumbo Frame Support ( up to 9216 bytes)
Designed to power IP Phones, Wireless Base
Functionally TransparentWS‐X4548‐GB‐RJ45V
10/100/1000 PoE IEEE 802.3af
g pStations, Video Cameras, and other IEEE‐
compliant PDs
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 31
y pSupported in All Chassis / Supervisors
6 Gbps Per Slot Capacity
48 Ports (RJ‐45) Module
Classic Line Cards: Gigabit Ethernet Copper DataClassic Line Cards: Gigabit Ethernet Copper ‐ Data
WS‐X4424‐GB‐RJ4524 Port – 4:1 OversubscribedSix 4‐port groups providing 1WS X4424 GB RJ45
10/100/1000 Module24 Ports (RJ‐45) WS‐X4548‐GB‐RJ45
10/100/1000 Module 48 Ports (RJ‐45)
Six 4 port groups, providing 1 Gbps Per Port‐Group
48 Port – 8:1 OversubscribedSix 8‐port groups, providing 1 Gbps Per Port‐Group
Cisco IOS 12.1(8a)EWIEEE 802.3x flow control
48 Port – 8:1 OversubscribedDesigned for gigabit‐to‐the‐desktop applications
48 Port 8:1 OversubscribedSix 8‐port groups, providing 1 Gbps Per Port‐Group
Cisco IOS 12.1(19)EWIEEE 802.3x flow control
More Power Efficient & More Cost Effective than
Functionally TransparentWS‐X4448‐GB‐RJ45
WS‐X4448‐GB‐RJ45Designed for gigabit‐to‐the‐desktop applications
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 32
y pSupported in All Chassis / Supervisors
6 Gbps Per Slot Capacity
10/100/1000 Module48 Ports (RJ‐45)
Classic Line Cards: Fast Ethernet PoEClassic Line Cards: Fast Ethernet ‐ PoE
10/100 (RJ 45)
WS‐X4248‐RJ21V10/100 PoE IEEE 802.3af Module
48‐port Telco (4 x RJ‐21)
WS‐X4224‐RJ45V 10/100 PoE IEEE 802.3af Module
24 ports (RJ‐45)
10/100 (RJ‐45)24 port ‐ Cisco IOS Release 12.2(20)EW48 port – Cisco IOS Release 12.2(18)EWIEEE 802.3af PoE and Cisco PreStandard PoEEnterprise and Commercial Deployments 48 port Telco (4 x RJ 21)Designed to power IP Phones, Wireless Base Stations, Video Cameras and other IEEE‐compliant PDs
Telco 10/100 RJ21Cisco IOS Release 12.2(18)EW
IEEE 802.3af PoE and Cisco PreStandardEnterprise / Commercial Deployments
Functionally Transparent
Enterprise / Commercial DeploymentsDesigned to power PoE Devices
Improved cable management RJ‐21 WS‐X4248‐RJ45V
10/100 PoE IEEE 802.3af Module 48 ports (RJ‐45)
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y pSupported in All Chassis / Supervisors
6 Gbps Per Slot Capacity
Classic Line Cards: Fast Ethernet Copper DataClassic Line Cards: Fast Ethernet Copper ‐ Data
WS‐X4124‐RJ45 Fast Ethernet 10/100 Module
24 Ports (RJ‐45)
10/100BASE‐T (RJ‐45)24 port ‐ Cisco IOS Release 12.2(20)EW48 port – Cisco IOS Release 12.1(8a)EW IEEE 802.3Enterprise and Commerical
WS‐X4148‐RJ21Fast Ethernet 10/100 Module
48‐port Telco (4 x RJ‐21)Enterprise and Commerical Medium – High Port DensityDesktop Connectivity / Wiring Closets
Telco 10/100BASE‐TCisco IOS Release 12.1(8a)EW
IEEE 802.3Enterprise / Commercial:
Functionally Transparent
p /High Port Density Solution
Improved cable management RJ‐21 WS‐X4148‐RJ
Fast Ethernet 10/100 Module 48 Ports (RJ‐45)
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 34
y pSupported in All Chassis / Supervisors
6 Gbps Per Slot Capacity
Classic Line Cards: Gigabit Ethernet FiberClassic Line Cards: Gigabit Ethernet ‐ Fiber
WS‐X4302‐GB Gigabit Ethernet Module
WS‐X4418‐GB Gi bi E h M d l
1000BASE‐X (GBIC)Cisco IOS ‐ 12.1(8a)EWIEEE 802.3Gigabit Ethernet Module
2 Ports (GBIC)Gigabit Ethernet Module
18 Ports (GBIC)Non‐Blocking1000BASE‐X (GBIC)2 Port ‐ Cisco IOS 12.1(19)EW4 Port ‐ Cisco IOS 12.1(8a)EWIEEE 802.3
IEEE 802.3x flow control2 Ports Non‐Blocking (Uplinks)16 Ports: 4:1 Oversubscribed
L2‐L4 Jumbo Frame Support (up to 9216 bytes)Designed for uplinks, server farms switch‐to‐switch applications
WS X4306 GB WS‐X4448‐GB‐SFP
1000BASE‐X (SFP)Cisco IOS ‐ 12.2(20)EWIEEE 802.3IEEE 802.3x flow control
Functionally Transparent
WS‐X4306‐GB Gigabit Ethernet Module
6 Ports (GBIC)
WS X4448 GB SFP Gigabit Ethernet Module 48 Ports 1000X (SFP)
8:1 OversubscribedBandwidth allocated acrossSix 8‐port groups, providing1 Gbps per port‐group
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 35
y pSupported in All Chassis / Supervisors
6 Gbps Per Slot Capacity
Classic Line Cards Fast Ethernet over FiberClassic Line Cards ‐ Fast Ethernet over Fiber
WS X4248 FE SFP WS‐X4148‐FX‐MT
Mix and Match 100BASE‐XSFP Optics ‐100BASE‐FX, 100BASE‐LX10, 100BASE‐BX‐D 100BASE‐BX‐UIEEE 802 3 IEEE 802 3ah
100BASE‐FX MMF, MT‐RJCisco IOS Release 12.1(8a)EWIEEE 802.3FTTx applicationsWS‐X4248‐FE‐SFP
Fast Ethernet Switching Module 48‐port 100BASEX
Fast Ethernet Switching Module 48‐port 100BASE‐FX (MMF)
IEEE 802.3, IEEE 802.3ah, IEEE 802.3x flow controlFTTx applicationsMetro Ethernet Residential
FTTx applicationsMetro Ethernet ApplicationsDistance up to 1.2 miles(2‐km) radius
WS‐X4124‐FX‐MTFast Ethernet Switching Module
WS‐X4148‐FE‐BD‐LCFast Ethernet Switching Module
100BASE‐FX MMF, MT‐RJCisco IOS Release 12.1(8a)EWIEEE 802.3FTTx applicationsMetro Ethernet Residential
100BASE‐BX‐10‐DSingle Strand of SMFCisco IOS Release 12.2(18)EWIEEE 802.3, IEEE 802.3ah
Functionally Transparent
Fast Ethernet Switching Module 24‐port 100BASE‐FX (MT‐RJ)
Fast Ethernet Switching Module 48‐port 100BASE‐BX10 (SMF)
Metro Ethernet Residential located within a 1.2 mile (2‐km) radius
Bidirectional FE operates over single strand of fiberMetro Ethernet ApplicationsDistances up to 6.2 miles(10 km) radius
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 36
Functionally TransparentSupported in All Chassis / Supervisors
6 Gbps Per Slot Capacity
Jumbo Frame SupportJumbo Frame SupportAllows the switch to forward packets as large as 9216 bytes, rather than declaring frames “oversized” and discard them Jumbo Frames can be
Line Cards Ports
declaring frames oversized and discard them. Jumbo Frames can be configured on a per‐port basis on Layer 2 and Layer 3 interfaces.
WS‐X4306‐GB All Ports
WS‐X4506‐GB‐T All Ports
WS‐X4232‐GB‐RJ 1‐2
WS‐X4418‐GB 1‐2
WS X4412 2GB TX 13 14WS‐X4412‐2GB‐TX 13‐14
WS‐4648‐RJ45V‐E All Ports
WS‐4648‐RJ45V+E All PortsS 6 8 J 5 o ts
WS‐X4606‐X2‐E All Ports
WS‐X4624‐SFP‐E All Ports
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 37
Supervisor Uplinks All Ports
AgendaAgenda
Chassis Specifications
Chassis Architecture
Power Supplies
Supervisor Specifications
Supervisor Architecture
Line Card Specifications
Line Card Architecture
Packet Walk
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 38
Classic Line Card to Supervisor ArchitectureClassic Line Card to Supervisor ArchitectureSubPorts
4 x Gigabit Ports
Gigabit PortSlot 3
SERDES
4:1 STUB ASIC(MUX)
1 GBPS
1 GBPS
1 GBPS( )1 GBPS
Gi bi P1 GBPS
Fabric Port
Packet Processor ASIC
Gigabit PortSlot 4
SERDES1 GBPS
1 GBPS
1 GBPS8:1 8 x Gigabit PortsASIC 1 GBPS
1 GBPS
1 GBPS
STUB ASIC(MUX)
8 x Gigabit Ports
1 GBPS
1 GBPS
Gigabit PortSlot 5
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 39
Slot 5SERDES 1 GBPS 1 x Gigabit Ports
Classic 48 Port 10/100/1000 Line Card DiagramClassic 48 Port 10/100/1000 – Line Card Diagram
Packet Processing ASICPacket Processing ASIC
Gbp
s
Gbp
s
Gbp
s
Gbp
s
Gbp
s
Gbp
s
1 1 1 1 1 1
8:1 Stub ASIC MUX
8:1 Stub ASIC MUX
8:1 Stub ASIC MUX
8:1 Stub ASIC MUX
8:1 Stub ASIC MUX
8:1 Stub ASIC MUX
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
1 GBPS
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 40
Front Panel Ports 1‐ 8 Front Panel Ports 9‐ 16 Front Panel Ports 17‐ 24 Front Panel Ports 25‐ 32 Front Panel Ports 33‐ 40 Front Panel Ports 41‐ 48
E Series Switching Module Architecture XGStub
3 Gbps Each Lane (6 Gbps) 3 Gbps Each Lane (12 Gbps)
E‐Series Switching Module Architecture ‐ XGStub
XGStub XGStub
802.3z Serial XAUI Serial
Port 1 Port 3Port 1 Port 12
10/100/1000 Mbps 10 Gbps
SERDES4 x XGStubs on 2 x XGStubs on
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 41
Front Panel Port
SERDES4 x XGStubs on48 port 10/100/1000 PoE
E‐Series Line Card
2 x XGStubs on6 port 10GbE
E‐Series Line Card
E Series 48 Port 10/100/1000 Line Card Diagram
24 Gbps Slot Capacity
E‐Series 48 Port 10/100/1000 ‐ Line Card Diagram
3Gbp
s
3Gbp
s
3Gbp
s
3Gbp
s
3Gbp
s
3Gbp
s
3Gbp
s
3Gbp
s
XGStubASIC
XGStubASIC
XGStubASIC
XGStubASIC
Octal Phy Octal Phy Octal Phy Octal Phy Octal Phy Octal Phy
24‐Gig per Slot (2:1 Oversubscribed) – (4) XGStubs
Front Panel Ports 1 ‐ 48
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24 Gig per Slot (2:1 Oversubscribed) (4) XGStubsCapable of per Port Current Monitoring
L2/L3 Jumbo Frames on All Ports
E Series 48 Port 10/100/1000 Port Groupings
24 Gbps Slot Capacity
E‐Series 48 Port 10/100/1000 ‐ Port Groupings
3Gbp
s
3Gbp
s
3Gbp
s
3Gbp
s
3Gbp
s
3Gbp
s
3Gbp
s
3Gbp
s
XGStubASIC
XGStubASIC
XGStubASIC
XGStubASIC
Octal Phy Octal Phy Octal Phy Octal Phy Octal Phy Octal Phy
31 2 4 5 6 97 8 10 11 12
24‐Gig per Slot (2:1 Oversubscribed) – (4) XGStubs
Front Panel Ports 1 ‐ 48
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 43
24 Gig per Slot (2:1 Oversubscribed) (4) XGStubsCapable of per Port Current Monitoring
L2/L3 Jumbo Frames on All Ports
E Series Linecards: Port GroupsE‐Series Linecards: Port GroupsFront panel ports connected to the same Xgstub
Groups of 12: 10/100/1000 or 1000 Mbps
Groups of 3: 10 GE
Groups of 6: 1 GE ports (TwinGig)
1 2 3 4 5 6
Catalyst-4506-E# show hw-module module 3 port-group
109 1211 1615 1817141387
y p g p
Module Port-group Active Inactive----------------------------------------------
3 1 Gi3/7 12 Te3/1 3
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3 1 Gi3/7-12 Te3/1-33 2 Te3/4-6 Gi3/13-18
Default
AgendaAgenda
Chassis Specifications
Chassis Architecture
Power Supplies
Supervisor Specifications
Supervisor Architecture
Line Card Specifications
Line Card Architecture
Packet Walk
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 45
Supervisor 6 E Packet WalkSupervisor 6‐E – Packet Walk
CPUPacket Memory
CPU FPGA
STP Memory ICCTCAM
FLCTCAM
SERDESPHY
FWD Memory1
FWDMemoryIPP
(I t lli t P k t P )VFE
(V F t F di E i )
PLD
FWD Memory2
OCCTCAM
(Intelligent Packet Processor)ASIC
(Very Fast Forwarding Engine)ASICPTD
DBL Mem RETQueue Memory
SERDESPHY
Supervisor 6‐ELine Card
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 46
Supervisor 6 E Components IPPSupervisor 6‐E Components ‐ IPP
CPUPacket Memory
CPU FPGA
STP Memory ICCTCAM
FLCTCAM
SERDESPHY
FWD Memory1
FWDMemoryIPP
(I t lli t P k t P )VFE
(V F t F di E i )
PLD
FWD Memory2
OCCTCAM
(Intelligent Packet Processor)ASIC
(Very Fast Forwarding Engine)ASICPTD
DBL Mem RETQueue Memory
SERDESPHY
Supervisor 6‐ELine Card
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 47
IPP RoleIPP: Packet Reception, Packet Storage, Packet Retransmission
IPP Role
Packet Memory
Free List Header
Packet Memory Structure
PayloadHeader
Free List Header
Packet’s 1st Cell
IPP (Intelligent Packet Processor)
ASIC…
Packet’s Last Cell
Packet Processing Engine
Free List Tail
Centralized Packet Memory
17 5 MB of Packet MemoryPacket copied into Packet Memory
Vlan tag is stripped and Vlan information is stored
Packets Header Parsing:L2 IP 4 IP 6 L4
17.5 MB of Packet Memory
64K of Cells‐280 Byte Cells‐ 70 Byte Sub‐Cells‐ 1 Cell = 4 Sub‐Cells
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 48
L2, IPv4, IPv6, L4
Packet Rewrite:L2 and L3 for IPv4,IPv6
1 Cell 4 Sub Cells
Data is written into chunks called “sub‐cells”
Cells maintained in Link‐List Manner
Supervisor 6 E Components VFESupervisor 6‐E Components ‐ VFE
CPUPacket Memory
CPU FPGA
STP Memory ICCTCAM
FLCTCAM
SERDESPHY
FWD Memory1
FWDMemoryIPP
(I t lli t P k t P )VFE
(V F t F di E i )
PLD
FWD Memory2
OCCTCAM
(Intelligent Packet Processor)ASIC
(Very Fast Forwarding Engine)ASICPTD
DBL Mem RETQueue Memory
SERDESPHY
Supervisor 6‐ELine Card
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 49
Supervisor 6 E Components VFESupervisor 6‐E Components ‐ VFE
STP M
Stores Per PortPer VLAN
Spanning Tree StateSTP Memory(Spanning Tree Memory)
Spanning Tree State
VFE (Very Fast Forwarding Engine)
ASIC
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 50
Supervisor 6 E Components VFESupervisor 6‐E Components ‐ VFE
ICC
Stores Input ACL and QoS rules in TCAM4
ICCInput Classification CAM Packets classified via rules
loaded into TCAM
VFE (Very Fast Forwarding Engine)
ASIC
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 51
Supervisor 6 E Components VFESupervisor 6‐E Components ‐ VFE
FLC
Stores Layer 3 forwarding and unicast RPF check rules
FLCForwarding Lookup CAM Contains IPv4 and
IPv6 FIB Entries
VFE (Very Fast Forwarding Engine)
ASIC
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 52
Supervisor 6 E Components VFESupervisor 6‐E Components ‐ VFE
FLM 1 and FLM 2 store associated forwarding information –Adjacencies and RET indicesjFLMs indexed by FLC lookup result
FLM 1Forwarding Lookup Memory
VFE (Very Fast Forwarding Engine)
ASIC FLM 2Forwarding Lookup Memory
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 53
Supervisor 6 E Components VFESupervisor 6‐E Components ‐ VFE
Stores Output ACLand QoS rules in TCAM4
Packets Classified viarules loaded into TCAM
VFE (Very Fast Forwarding Engine)
ASICOCC
Output Classification CAM
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 54
Supervisor 6 E Components VFESupervisor 6‐E Components ‐ VFE
St L2 M lti tStores L2 Multicast,Broadcast, flood‐vlan,
port‐sets, and IP Multicast ForwardingIP Multicast Forwarding
VFE (Very Fast Forwarding Engine)
ASIC
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 55
RETReplica Expansion Table
Supervisor 6 E Components VFESupervisor 6‐E Components ‐ VFE
Stores DBL (Dynamic Buffer Limiting)
VFE (Very Fast Forwarding Engine)
ASIC
(Dynamic Buffer Limiting)flow hash table
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 56
DBL Hash MemoryDynamic Buffer Limiting
Supervisor 6 E Components VFESupervisor 6‐E Components ‐ VFE
Stores all Transmit Queues including CPU transmit queue andincluding CPU transmit queue and
Drop Queue. Stores a Packet Descriptorcontaining information for transmission
VFE (Very Fast Forwarding Engine)
ASIC
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 57
Queue Memory
Supervisor 6 E VFE to IPP ReceptionSupervisor 6‐E – VFE to IPP Reception
CPUPacket Memory
CPU FPGA
STP Memory ICCTCAM
FLCTCAM
SERDESPHY
FWD Memory1
FWDMemoryIPP
(I t lli t P k t P )VFE
(V F t F di E i )
PLD
FWD Memory2
OCCTCAM
(Intelligent Packet Processor)ASIC
(Very Fast Forwarding Engine)ASIC
PTD
DBL Mem RETQueue Memory
SERDESPHY
Supervisor 6‐ELine Card
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 58
Supervisor 6 E Unicast Packet WalkSupervisor 6‐E – Unicast Packet Walk
CPUPacket Memory
CPU FPGA
STP Memory ICCTCAM
FLCTCAM
FabricPHY
54 61
FWD Memory1
FWDMemoryIPP
(I t lli t P k t P )VFE
(V F t F di E i )
PLD2
3
FWD Memory2
OCCTCAM
(Intelligent Packet Processor)ASIC
(Very Fast Forwarding Engine)ASICPTD
10
9
DBL Mem RETQueue Memory
FabricPHY7
8
10
Supervisor 6‐ELine Card
8
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 59
Supervisor 6 E Unicast Packet WalkSupervisor 6‐E – Unicast Packet Walk
1. Packet enters the PHY in the line module and travels across the backplane before hi th S ireaching the Supervisor
2. Packet enters the Supervisor; IPP performs parsing of VLAN tag / header and stores the packet into Packet Memory
3. The stripped header is used to construct a Packet Lookup Descriptor (PLD) and forwarded to the VFE ASIC
4. PLD goes through L2 lookup. Spanning Tree state is checked. Packet MAC source and MAC destination coupled with the receive VLAN ID are looked up in the L2 Hash Table. L2 Lookup also determines whether the packet is destined for Router functionality
5 I t Cl ifi ti i d t t i t ACL d Q S l i TCAM45. Input Classification is used to store input ACL and QoS rules in TCAM4
6. Packet is sent to the Forwarding Lookup CAM for L3 lookup. FLC stores L3forwarding and unicast RPF check rules. Contains IPv4 and IPv6 FIB entries
7. Output Classification stores output ACL and QoS rules in TCAM4
8. The Packet Transmit Descriptor (PTD) is sent to the Queue Memory
9 PTD i t b k t th IPP
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9. PTD is sent back to the IPP
10. IPP transmits the packet across the backplane to the correct egress interface
Catalyst 4500 Architecture SummaryCentralized Architecture
Catalyst 4500 Architecture ‐ Summary
Shared memory switchPassive Backplane
All forwarding queuing security isCPU / SDRAM
All forwarding, queuing, security is implemented on the Supervisor
The individual line cards are d d b ‘ ’
Forwarding EngineFFE /VFE
considered to be ‘transparent’Contain simple “stub” ASICs and the PHYs
/
Shared Memory FabricPPE / IPP
No local switching
Each classic line card has 6 Gbps (full duplex) connections to the central forwarding engine
Each E‐Series line card has 24 Gbps (full duplex) connection to the
Line Card Line Card Line Card Line Card Line Card
© 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential4500 Bootcamp 61
( p )central forwarding engine
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