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more about MSFP, PFC of 6500
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Catalyst 6500 Supervisors Supervisor 32
The Supervisor 32 is designed for deployment in the Access Layer - there are two Supervisor 32 options, one with 8 GE SFP ports and the other with 2 10GE ports on the front panel
Sup32-8GE
Sup32-10GE
Catalyst 6500 Supervisors Supervisor 32 - Some facts
Supervisor 32 Quick Facts
NO Switch Fabric
Integrated Policy Feature Card 3 (PFC3B) supporting hardware acceleration for select features
Integrated Multilayer Switch Feature Card 2a (MSFC2a) supporting two CPUs for Layer 2 and Layer 3 functionality
IPv6 unicast and multicast forwarding support in hardware
All uplinks can be active in systems with redundant Supervisors
(more information in the notes)
You can add more memory
to the Sup 2a
Catalyst 6500 Supervisors Supervisor 32 - Some facts
Supervisor 32 Quick Facts
NO Switch Fabric
Integrated Policy Feature Card 3 (PFC3B) supporting hardware acceleration for select features
Integrated Multilayer Switch Feature Card 2a (MSFC2a) supporting two CPUs for Layer 2 and Layer 3 functionality
IPv6 unicast and multicast forwarding support in hardware
All uplinks can be active in systems with redundant Supervisors
(more information in the notes)
Catalyst 6500 Supervisors Supervisor 32 - The Elements
Both Supervisor 32 models incorporates a Multilayer Switch Feature Card 2a (MSFC2a) and the Policy Feature Card 3 (PFC3) - each of which is highlighted below
PFC3
MSFC2a
Catalyst 6500 SupervisorsSupervisor 720
The Supervisor 720 is designed for deployment in the Core and Distribution Layers of the Network There are two main options available : Sup720 with 10G uplinks and Sup720 with 1G uplinks
VS-S720-10G-3C is shown
Catalyst 6500 Supervisors
Supervisor 720 - Some Facts
Supervisor 720 Quick Facts
Integrated 720Gbps Switch Fabric
Integrated Policy Feature Card 3 (PFC3) supporting hardware acceleration for select features
Integrated Multilayer Switch Feature Card 3 (MSFC3) supporting two CPUs for Layer 2 and Layer 3 functionality
IPv6 unicast and multicast forwarding support in hardware
Virtual Switching System (VSS) support with Sup720-10G models
All uplinks can be active in systems with redundant Supervisors
(more information in the notes)
Catalyst 6500 SupervisorsSupervisor 720 - The Elements
All Supervisor 720 models incorporates three main elements - the Multilayer Switch Feature Card 3 (MSFC3), the Policy Feature Card 3 (PFC3) and the Switch Fabric - each of which is highlighted below
Switch Fabric
PFC3
MSFC3
Catalyst 6500 SupervisorsSupervisor 2T
The Supervisor 2T is designed for deployment in the Core and Distribution Layers of the Network - it is the highest performing Supervisor option available for the Catalyst 6500 platform
VS-SUP2T-PFC4 is shown
We have 2 uplinks
3 gig ports
And USB ports
It has CMP as well
Catalyst 6500 SupervisorsSupervisor 2T - Some Facts
Supervisor 720 Quick Facts
Integrated 2-Tbps Switch Fabric
Integrated Policy Feature Card 4 (PFC4) supporting hardware acceleration for select features
Integrated Multilayer Switch Feature Card 5 (MSFC5) supporting a single CPU for L2 and L3 functionality
Connectivity Management Processor (CMP) for improved management capability
One external compact flash slot (power controlled by IOS)
All uplinks can be active in systems with redundant Supervisors
(more information in the notes)
Catalyst 6500 SupervisorsSupervisor 2T - The Elements
All Supervisor 2T models incorporate three main elements - the Multilayer Switch Feature Card 5 (MSFC5), the Policy Feature Card 4 (PFC4) and the Switch Fabric - each of which is highlighted below
Switch Fabric
MSFC5
PFC4
Catalyst 6500 Supervisors MSFC and PFC in more detail
Lets look at the MSFC and PFC in more detail - what they are and what they do
Multilayer Switch Feature Card (MSFC)
Policy Feature Feature Card (PFC)
Provides Control Plane Functionality
Provides Data Plane Functionality
So what is the Control Plane and the Data Plane???
MSFC OVERVIEW
There are two parts to the processing functionality of the Switch - the Control Plane and the Data Plane
SWITCH CONTROL PLANE
SWITCH DATA PLANE
Switch Features that are processed in SOFTWARE by a CPU
There are two control planes
the Switch Processor Control Plane (SP) which processes software based Layer 2 features
the Route Processor Control Plane (RP) which processes software based Layer 3 features
Switch Features that are processed in HARDWARE by Application Specific Integrated Circuits (ASICs)
MSFC
OVERVIEW
Agenda Topics
Catalyst 6500 Supervisors MSFC3 Introduction
MSFC3
Catalyst 6500 Supervisors MSFC3 Components
Route Processor
Bootflash 64MB
Switch Processor
Bootflash 64MB
Switch Processor
Route Processor
Switch Processor DRAM
512MB
Route Processor DRAM
512MB
Catalyst 6500 Supervisors MSFC3 - Switch Processor
MSFC3
Route
Processor
(RP)
Switch
Processor
(SP)
Both the RP and SP perform distinct functions during both the booting of the operating system and the ongoing operation of the switch
- The SP owns the switch at initial boot up before handing over to the RP
The SP runs all layer 2 operations like VTP, Spanning Tree, Chassis and Power Management, etc
Supports other Layer 2 features like CDP, SPAN, Broadcast Suppression, Etherchannel, etc
The Switch Processor is physically located on the MSFC3
Logically considered as the Network Management Processor (NMP)
Dedicated CPU, DRAM and Flash
Catalyst 6500 Supervisors MSFC3 - Route Processor
MSFC3
Both the RP and SP perform distinct functions during both the booting of the operating system and the ongoing operation of the switch
The Route Processor is physically located on the MSFC
Logically considered as the MSFC
Dedicated CPU, DRAM and Flash
The RP runs the Layer 3 routing protocols like OSPF, EIGRP, BGP, etc
Other layer 3 features like IPX and Appletalk
Manages the user interface (CLI)
All show and configuration commands are processed on the RP then sent to the SP for execution
Route
Processor
(RP)
Switch
Processor
(SP)
Catalyst 6500 Supervisors MSFC3 - Bootflash
RP
SP
RP BOOTFLASH
SP BOOTFLASH
The RP and the SP both have their own set of Bootflash
SP Bootflash is used to store the boot image and is referred to as SUP-BOOTFLASH during normal operation
RP Bootflash is referred to as BOOTFLASH during normal operation
6500# dir sup-bootflash:
Directory of sup-bootflash:/
1 -rwx 78958736 May 4 2006 20:07:18 +00:00 s72033-advipservicesk9_wan-vz.122-18.SXF4.bin
512040960 bytes total(433082224 bytes free)
MSFC3
Catalyst 6500 Supervisors MSFC3 - RP and SP DRAM
MSFC3
RP
SP
RP DRAM
SP DRAM
The RP and the SP both have their own set of DRAM
RP/SP DRAM (each is 512MB) is used to store the running configuration, the running IOS image, the routing table, etc the amount of SP and RP DRAM available can be seen using the following commands
6500# show version
cisco Catalyst 6000 (R7000) processor with 458752K/65536K bytes of memory.
6500# remote command switch show version
cisco Catalyst 6000 (R7000) processor with 458752K/65536K bytes of memory.
Remot login switch :: will change to sp prompt
Catalyst 6500 Supervisor 2T MSFC5 Introduction
MSFC5
Catalyst 6500 Supervisor 2T MSFC5 Components
Catalyst 6500 Supervisor 2T MSFC5 Dual Core Processor
MSFC5
Dual Core
Processor
Handle the boot process
Run all layer 2 operations like VTP, Spanning Tree, Chassis and Power Management, etc
Support other Layer 2 features like CDP, SPAN, Broadcast Suppression, EtherChannel, etc
Run the Layer 3 routing protocols like OSPF, EIGRP, BGP, etc
Manage the user interface (CLI)
The MSFC5s Dual Core Processor combines the functionalities that used to be provided by the Switch Processor (SP) and Route Processor (RP) on previous generation Supervisors.
Catalyst 6500 Supervisor 2T MSFC5 CPU Bootflash
The presence of a single Dual Core Processor means that there is just
a single CPU bootflash on the MSFC5.
The MSFC5 Bootdisk is a 1GB Internal Compact Flash by default.
6509E-2T#dir bootdisk:
Directory of bootdisk:/
1022590976 bytes total (1022590976 bytes free)
6509E-2T#
Catalyst 6500 Supervisor 2TMSFC5 - DRAM
The Dual Core Processor of the MSFC5 has two memory sockets that are currently each loaded with a 1GB DIMM. Each DIMM serves one core in the CPU complex and is ECC protected.
6509E-2T#show version
cisco WS-C6509-E (M8572) processor with 2031616K/65536K bytes of memory.
Catalyst 6500 Supervisor 2TMSFC5 Connectivity Management Processor (CMP)
The Connectivity Management Processor (CMP) supports new capabilities that will aid Network Administrators in managing the system:
RP Image Recovery
- TFTP boot of the system
RP File Transfer
- Image on USB device or TFTP
Remote RP Reset
- Hard or Soft reset
RP Console Logging
- Record RP console log for troubleshooting
USB Support
- Booting via Cisco Approved USB flash
- USB serial console access
Catalyst 6500 Supervisors MSFC3 vs MSFC5
FeatureMSFC3 (Supervisor 720-10G)MSFC5 (Supervisor 2T)CPU SpeedSP CPU 600MhzRP CPU 600MhzDual core with each core @ 1.5GhzNumber of CPU cores12DRAMSP CPU Up to 1GBRP CPU Up to 1GB2 x 1GB (1GB for each core)Connectivity Management Processor (CMP) CPUNoSingle core @ 266Mhz32MB Boot Flash256MB System MemoryNVRAM2MB4MBOBFL FlashNo4MBBootflash / BootdiskSP CPU 1GB (CF)RP CPU 64MB (flash)1GB (CF)External CF slot11OBFL : onboard forwarding logging
PFC OVERVIEW
There are two parts to the processing functionality of the Switch - the Control Plane and the Data Plane
SWITCH CONTROL PLANE
SWITCH DATA PLANE
Switch Features that are processed in SOFTWARE by a CPU
There are two control planes
the Switch Processor Control Plane (SP) which processes software based Layer 2 features
the Route Processor Control Plane (RP) which processes software based Layer 3 features
Switch Features that are processed in HARDWARE by Application Specific Integrated Circuits (ASICs)
PFC
OVERVIEW
Agenda Topics
Catalyst 6500 Supervisors PFC3 Introduction
PFC3x Hardware Features Summary
IPV4 and IPV6 CEF Switching
From 256K-1M IPV4 Routes
IPV4 NAT/PAT in Hardware
GRE and IP in IP Tunnels (HW)
Ingress/Egress Policing
From 128K-500K IPV6 Routes
Port Access Control Lists
User Based Rate Limiting
Hardware based Classification
Bi-Directional PIM
Multi-path URPF
4K ACL Labels (3B/3BXL only)
ACL Counters (3B/3BXL only)
VSS (3C/3CXL only)
96K MAC Table (3C/3CXL only)
PFC3
PFC3A - Base PFC
PFC3B - Adds MPLS, 4K ACL Labels, ACL Counters, improved hash algorithm for Netflow entries
PFC3BXL - Upgrades FIB to 1M entries and Netflow table to 256K Entries
PFC3C - Adds support for VSS, 96K MAC addresses, improved hash algorithm or MAC entries, EtherChannel Enhancements
PFC3CXL - Upgrades FIB to 1M entries and Netflow table to 256K entries
Catalyst 6500 Supervisors PFC3 Components
FIB
TCAM
Adjacency
Table
QoS
ACL
Security
ACL
Netflow
TCAM
Netflow
Table
Netflow
Statistics
Counters
3B/3BXL
Layer 3/4
Forwarding
Engine
Layer 2
Forwarding
Engine
MAC
Table
Contains IPV4, IPV6 prefixes and MPLS entries
Contains Layer 2 rewrite information
Contains QoS ACL entries (up to 32K)
Contains Security ACL entries (up to 32K)
Contains location of flow in Netflow Table
Contains key packet fields for flow
Collection of statistics for each active flow
Security ACL Counters
64K CAM containing MAC addresses
To DBUS
To RBUS
To EOBC
Picture shown is for PFC3A, 3B and 3BXL. PFC3C and 3CXL have a single ASIC for L2, L3 and L4 forwarding operations.
Catalyst 6500 Supervisor 2T PFC4 Introduction
Catalyst 6500 Supervisor 2T PFC4 Introduction
PFC4 Hardware Features Summary
Increased MAC Table (128K)
Improved EtherChannel Hash
L2 Bridge Domain Support
Per-Port - Per-VLAN QoS
Increase Logical Interfaces
Increased Forwarding (60Mpps)
Improved IPv6 Tunneling
uRPF for IPv6
VPLS without a WAN card
MPLSoGRE
16K MPLS Aggregate Labels
L2oGRE
Multi-point EoMPLS
512K Multicast Routes
IGMPv3 / MLDv2 Snooping
1M Netflow Entries (PFC4XL)
Egress Netflow
Flexible Netflow (FnF)
TCP Flags
Cisco TrustSec
Roles-Based ACLs
Increased ACL TCAM (256K)
Increased ACL Labels (16K)
And more ..
PFC4 - Base PFC
PFC4XL - Upgrades FIB to 1M entries and Netflow table to 256K Entries
Catalyst 6500 Supervisors PFC4 Components
Netflow Hash Table
Layer 3
Forwarding
Engine
Adjacency Table
Layer 2 Forwarding Engine
128K MAC
Table
FIB TCAM
Adjacency Statistics
ACE Counters
Netflow Data Table
LIF Map Table
Netflow Statistics
RPF Map Table
Classification ACL
Table #2
LIF Table
LIF Statistics
Exception Table
Classification ACL
Table #1
Bus Backplane
Fabric Replication ASIC
Catalyst 6500 Supervisor 2T PFC4 Components Explained
FIB TCAMIPv4 (u/m), IPv6 (u/m) and MPLS entriesAdjacency TableEgress LIF and Rewrite Table informationAdjacency StatsStatistics for adjacency table usageException TableException Cases and Actions to take Netflow Hash TableNetflow Hash Key and Data Tabel informationNetflow Data TableDate for individual flowsNetflow StatsStatistics for individual flowsLIF Map TableIngress and Egress Logical Interface (LIF) FeaturesRPF Map TableInformation for uRPF checkClassification ACL Table 1Information for Classification Table 2Classification ACL Table 2ACL, QoS, Accounting and CPS resultsACE CountersHardware counters for ACLsLIF TableData records containing LIF informationLIF StatsPer-frame statistics for Ingress, Egress or bothCatalyst 6500 Supervisors PFC3 / PFC4 Comparison
FeaturePFC3B/BXLPFC3C/CXLPFC4/XLIPv4 ForwardingUp to 30MppsUp to 48MppsUp to 60MppsIPv6 ForwardingUp to 20MppsUp to 32MppsUp to 40MppsFIB TCAM IPv4256K / 1M256K / 1M256K / 1MFIB TCAM IPv6128K / 500K128K / 500K128K / 500KAdjacency Table1M1M1MNetflow TableUp to 256K (XL)Up to 256K (XL)Up to 1M (XL)(Ingress 512K : Egress 512K)MAC Table64K (32K)96K (80K)128KEgress NetflowNoNoYesFlexible NetflowNoNoYesMPLSoGRENoNoYesIPv6 uRPFNoNoYesCatalyst 6500 Supervisors PFC3 / PFC4 Comparison
FeaturePFC3B/BXLPFC3C/CXLPFC4/XLACL Labels4K4K16KSecurity ACEsUp to 32KUp to 32KUp to 192K (XL Default)QoS ACEsUp to 32K Up to 32KUp to 64K (XL Default)Port ACLs2K2K8KAggregate Policers102310236KShared Microflow Policers6363512Egress Microflow PolicingNoNoYesDistributed PolicersNoNoYesPacket or Byte Based PolicingNoNoYesRPF Interfaces2216Native VPLSNoNoYesVSSNoYesYesCatalyst 6500 Supervisors PFC3 Performance Summary
L2/L3/L4 Switching
30Mpps
ACLs
30Mpps
Netflow
30Mpps
Policing
30Mpps
Marking
30Mpps
GRE
10Mpps
NAT
20Mpps
PAT
12Mpps
IPv4 Centralized Forwarding
v6 to v6
20Mpps
v4 to v6 Tunneling
10Mpps
v6 to v4 Tunneling
10Mpps
IPv6 Centralized Forwarding
v6 to v6
25Mpps
v6 to v4 Tunneling
16Mpps
IPv6 dCEF Forwarding
MPLS
20-30Mpps
IPv4 Centralized Forwarding
48Mpps
25Mpps
25Mpps
dCEF (Up to)
48Mpps
48Mpps
48Mpps
48Mpps
48Mpps
Performance numbers relate to ALL the Supervisor 720 options for IPv4 and IPv6 where displayed
Catalyst 6500 Supervisors PFC4 Performance Summary
L2/L3/L4 Switching
60Mpps
ACLs
60Mpps
Netflow
60Mpps
Policing
60Mpps
Marking
60Mpps
MPLS
60Mpps
EoMPLS Imposition
60Mpps
EoMPLS Disposition
12Mpps
IPv4 Centralized Forwarding
v6 to v6
30Mpps
v4 to v6 Tunneling
20Mpps
v6 to v4 Tunneling
20Mpps
IPv6 Centralized Forwarding
v6 to v6
30Mpps
v6 to v4 Tunneling
20Mpps
IPv6 dCEF Forwarding
60Mpps
60Mpps
25Mpps
dCEF (Up to)
60Mpps
60Mpps
60Mpps
60Mpps
60Mpps
MPLS
30Mpps
MPLS
30Mpps
Catalyst 6500 Supervisors Marketing Performance
The Sup2T is marketed as a 2Tbps Supervisor (hence the 2T in the name) but just how is the 2Tbps number derived?
The Switch Fabric consists of 26 40Gbps fabric channels
26 x 40Gb = 1.04Tbps is the switch fabric capacity
Each Switch Fabric Channel is Full Duplex
This equates to 40G in and 40G out at the same time
Therefore we double 1.04Tbps or full duplex the number to get the marketing number of 2Tbps (we round down from 2.08Tbps)
Catalyst 6500 Supervisors Distributed Forwarding Performance
Another often quoted number is the 720Mpps forwarding number again this is a number derived from utilizing distributed forwarding cards (DFC4s) to optimize the forwarding performance of the switch
SLOT 1
SLOT 2
SLOT 3
SLOT 4
SLOT 5
SLOT 6
SLOT 7
SLOT 8
SLOT 9
Dual Channels
SLOT 10
Dual Channels
SLOT 11
Dual Channels
SLOT 12
Dual Channels
Dual Channels
SLOT 13
Using a WS-X6908 w/DFC4 yields 60Mpps
Using a WS-X6908 w/DFC4 yields 60Mpps
Using a WS-X6908 w/DFC4 yields 60Mpps
Using a WS-X6908 w/DFC4 yields 60Mpps
Using a WS-X6908 w/DFC4 yields 60Mpps
Using a WS-X6908 w/DFC4 yields 60Mpps
Supervisor slot yields 30Mpps
Supervisor slot yields 30Mpps
Using a WS-X6908 w/DFC4 yields 60Mpps
Using a WS-X6908 w/DFC4 yields 60Mpps
Using a WS-X6908 w/DFC4 yields 60Mpps
Using a WS-X6908 w/DFC4 yields 60Mpps
Using a WS-X6908 w/DFC4 yields 60Mpps
Total: 720Mpps
6513-E
Dual Channels
Dual Channels
Dual Channels
Dual Channels
Dual Channels
Dual Channels
Dual Channels
Dual Channels
SWITCH FABRIC OVERVIEW
There are two parts to the processing functionality of the Switch - the Control Plane and the Data Plane
SWITCH CONTROL PLANE
SWITCH DATA PLANE
Switch Features that are processed in SOFTWARE by a CPU
There are two control planes
the Switch Processor Control Plane (SP) which processes software based Layer 2 features
the Route Processor Control Plane (RP) which processes software based Layer 3 features
Switch Features that are processed in HARDWARE by Application Specific Integrated Circuits (ASICs)
SWITCH FABRIC
OVERVIEW
Agenda Topics
Catalyst 6500 Supervisor 720 The 720Gb Switch Fabric
- Integrated 720Gbps Switch Fabric
- Provides backplane interconnects between linecards
- Fabric Traces are distributed across each linecard slot
- Each Fabric Trace can run at 8Gb/sec OR 20Gb/sec
Switch Fabric
Catalyst 6500 Supervisor 2T The 2Tbps Switch Fabric
Switch Fabric
Integrated 2Tbps Switch Fabric
26 Channels to support the 6513-E
- Provides backplane interconnects between linecards
- Fabric Traces are distributed across each linecard slot
- Each Fabric Trace can run at 20Gb/sec OR 40Gb/sec
Each Slots has 2 channels
Catalyst 6500 Supervisors Switch Fabric
The Supervisor 720 and Supervisor 2T support a Switch Fabric which offers each connected linecard a set of discrete communication paths into the switch backplane
Linecard
Slot #3
Linecard
Slot #4
Supervisor
Slot #5
Linecard
Slot #6
Linecard
Slot #7
Linecard
Slot #2
Linecard
Slot #1
Linecard
Slot #9
Linecard
Slot #8
Data Flows
Catalyst 6500 Supervisor 720 Switch Fabric and the 6513 / 6513-E
SWITCH
FABRIC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
The Switch Fabric has 18 channels which are spread across the available chassis slots - The 6503/6504/6506 and 6509 each get two fabric channels per slot - but what about the 6513 and 6513-E? How do we split 18 channels across 13 slots?
Slots 1 thru 8 each get a single fabric channel
Slots 9 thru 13 each get dual fabric channels
8 x 1 = 8
5 x 2 = 10
8 + 10 = 18
Total fabric channels
Catalyst 6513 / 6513-E Fabric Channel Assignment
Catalyst 6500 Supervisor 2T Switch Fabric and the 6513-E
The Supervisor 2T Switch Fabric has 26 channels which are spread across the available chassis slots - The 6503-E / 6504-E / 6506-E, 6509-E and 6509-V-E each get two fabric channels per slot - but what about the 6513-E ?
13 x 2 = 26
Catalyst 6513-E Fabric Channel Assignment
1
3
2
4
5
7
6
8
9
11
10
12
13
14
16
15
17
18
20
19
21
22
24
23
25
26
SWITCH
FABRIC
Slots 1 thru 13 each get dual fabric channels
Catalyst 6500 Supervisors The 32Gbps Bus
The 32Gbps Classic Bus is a legacy backplane that originated with the first release of the Catalyst 6500 back in 1999.
Supervisor
DBUS
RBUS
EOBC*
Linecard
Linecard
DBUS - Data Bus - path over which data is transferred between linecards
RBUS - Results Bus - path over which results of forwarding lookups by the Supervisor are passed back to linecards
EOBC - Ethernet Out of Band Channel - path Supervisor uses for internal communication with linecards
*E-Series Chassis have a dual EOBC
Catalyst 6500 Supervisors The Backplanes
Two forwarding backplanes exist in the Catalyst 6500, the Classic BUS and the Switch Fabric
Classic BUS
Switch Fabric
Supported by Sup2T
Yes
20Gbps, 40Gbps
Supported by Sup720
Supported by Sup32
Yes
8Gbps, 20Gbps
Yes
No
Full Duplex
Yes
Yes
Linecard Connection
Single Connection
Single or Dual Channel
Backplane is Shared Medium?
Yes - All modules connect to same BUS
No - Each module has discrete connection(s)
Supports Classic Linecard
Yes
No
Supports CEF256 Linecard
Yes
Yes
Supports CEF720 Linecard
Not for data traffic
Yes
Supports Linecard with DFC
No
Yes
Additional Information
Supervisor Comparison
http://bock-bock.cisco.com/~csolder/tools/sup-comparison-v212.xls
TME Supervisor Collateral
http://bock-bock.cisco.com/wiki/CSSTG_TechMarketing:6500_Supervisors
Supervisor 720-10G FAQ (Internal)
http://bock-bock.cisco.com/wiki/CSSTG_TechMarketing:6500_Supervisors:Sup720-10G_FAQ
Supervisor 720-10G FAQ (External)
http://www.cisco.com/en/US/partner/prod/collateral/modules/ps2797/qa_cisco_virtual_switching_supervisor_engine_720_with_10_gigabit_ethernet_uplinks_ps708_Products_Q_and_A_Item.html
Supervisor 720 Data Sheet
http://www.cisco.com/en/US/partner/prod/collateral/switches/ps5718/ps9336/product_data_sheet0900aecd806ed759_ps708_Products_Data_Sheet.html
Supervisor 720-10G Data Sheet
http://www.cisco.com/en/US/partner/prod/collateral/switches/ps5718/ps9336/product_data_sheet0900aecd806ed759_ps708_Products_Data_Sheet.htm
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