CELC - Архитектура коммутаторов Catalyst 4500

Cisco Expo Club 2011

Денисов Павел, системный инженер

Архитектура коммутаторов Catalyst 4500

© 2010 Cisco and/or its affiliates. All rights reserved. Presentation_ID 2

Agenda   Catalyst4500 chassis   Supervisor modules   Line cards   Line cards architecture   Sup7-E architecture   Unicast packet walk   Multicast packet walk   Catalyst4500 IOS XE   Flexible NetFlow

© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential Presentation_ID 3

Catalyst4500 Chassis


Cisco Catalyst 4500E Series Chassis

WS-C4503-E* 3 slot chassis With single Supervisor

WS-C4506-E* 6 slot chassis With Single supervisor

WS-C4507R-E 7 slot chassis With Redundant Supervisors

WS-C4510R-E 10 slot chassis with Redundant supervisors

• 3 and 6 slot chassis have supervisors in slot 1 and are non redundant chassis ( 1 supervisor only )


New Cisco Catalyst 4500E Series Chassis

WS-C4503-E

WS-C4507R+E 7 slot chassis With Redundant Supervisors

WS-C4510R+E 10 slot chassis with Redundant supervisors

WS-C4507R+E WS-C4506-E WS-C4510R+E


Catalyst 4507R+E W

S-C

4507R+E

240 Ports of 10/100/1000

11 RU Rack Units

2 Supervisors

5 Line Card Slots


Catalyst 4510R+E W

S-C

4510R+E

384 Ports of 10/100/1000

14 RU Rack Units

2 Supervisor

8 Line Card Slots

Sup6L-E Not Supported


Supervisor modules


Cisco Catalyst 4500E Supervisor 7-E W

S-X

45-Sup7-E

USB

4 10G/1G Uplinks

Dual Core CPU


Cisco Catalyst 4500E Supervisor 6-E W

S-X

45-Sup6-E

10 G Twin 1G Converter


Cisco Catalyst 4500E Supervisor 6L-E W

S-X

45-Sup6L-E

10 G Twin 1G Converter


Catalyst 4500E Supervisor Comparison P

erfo

rman

ce

Supervisor 6L-E Supervisor 6-E Supervisor 7-E

Bandwidth: 280 Gbps Uplinks: 2x10G/4x1G CPU: 1 GHz DRAM: 512 MB Max Routes: 57K

Bandwidth: 320 Gbps Uplinks: 2x10G/4x1G CPU: 1.3 GHz DRAM: 512 MB Max Routes: 256 K

Bandwidth: 848 Gbps Uplinks: 4x10G/4x1G CPU: Dual Core 1.5 GHz DRAM: 2 GB Max Routes: 256 K


Catalyst 4500E Supervisor Comparison

Feature Supervisor 6L-E Supervisor 6-E Supervisor 7-E

Switching Capacity 280 Gbps 320 Gbps 848Gbps

Throughput 225 Mpps ( 125 Mpps for IPv6 )

250 Mpps ( 125 Mpps for IPv6) 250 Mpps ( 125 Mpps for IPv6)

Bandwidth / Slot Upto 24G Upto 24G Upto 48G

CPU Single Core 1 GHz Single Core 1.3 GHz Dual Core 1.5 GHz

DRAM 512 MB 512 MB ( Upgradable to 1G ) 2G ( Upgradable to 4G)

Bootflash 128 MB 128 MB 1G

Feature Supervisor 6L-E Supervisor 6-E Supervisor 7-E

Number of 10/100/1000 ports Upto 240 access Upto 4 GE uplinks

Upto 384 access Upto 4 GE uplinks

Upto 384 access Upto 4 GE uplinks

Number of 10GE ports Upto 30 on Line cards Upto 2 on Supervisors

Upto 30 on Line cards Upto 4 on Supervisors

Upto 96 on Line cards Upto 4 on Supervisors

NetFlow No Support No Support Native support 128K

Performance

Scalability


24G 24G 24G 24G

Supervisor 6-E Supervisor 6-E

24G 6G 6G 6G

WS-C4510R-E

24G 24G 24G 24G


24G 24G 24G 24G

WS-C4510R-E

48G 48G 48G 48G


48G 48G 48G 48G

WS-C4510R+E

24G 24G

24G 24G

Supervisor 6/6L-E Supervisor 6/6L-E

24G

WS-C4507R-E

24G 24G

24G 24G


24G

WS-C4507R-E

48G 48G

48G 48G


48G

WS-C4507R+E

Catalyst 4500E Investment Protection


Line cards


1 Gbps per port 30W per port (IEEE802.3at) on 48 ports

WS

-X4748-R

J45V+E

Catalyst 4500E PoE Line Cards


WS

-X4648-R

J45V+E

1 Gbps per port (2:1 Oversubscribed) 30W per port (IEEE802.3at) on 24 ports

Catalyst 4500E PoE Line Cards


Catalyst 4500E Data Line Card W

S-X

4648-RJ45-E

1 Gbps per port (2:1 Oversubscribed) Data only


Catalyst 4500E 10G Fiber Line Card W

S-X

4712-SFP

+E Flexibility of 10G/1G

2.5:1 Oversubscribed if all ports used for 10G LR, SR, CX1, and LRM Optics


Catalyst 4500E 10G Fiber Line Card W

S-X

4606-X2-E

Flexibility of 10G/1G 2.5:1 Oversubscribed if all ports used for 10G LR, SR, LX4, and LRM X2 Optics


Catalyst 4500E 1G Fiber Line Card

WS

-X4612-S

FP-E

WS

-X4624-S

FP-E

12 Port GigE SX and LX Optics

24 Port GigE SX and LX Optics


Line cards architecture


46xx and 47xx Line Card Speeds

Bandwidth per Slot with 46XX series line card

  8 dedicated lanes to Supervisor

  Each lane operates at 3Gbps

Bandwidth per Slot with 47xx series line cards

  8 dedicated lanes to Supervisor

  Each lane runs at 6Gbps

Packet Processor

E-Series 46xx Line Card

3 G

bps

3 G

bps

3 G

bps

3 G

bps

3 G

bps

3 G

bps

3 G

bps

3 G

bps

Packet Processor

E-Series 47xx Line Card

6 G

bps

6 G

bps

6 G

bps

6 G

bps

6 G

bps

6 G

bps

6 G

bps

6 G

bps


Catalyst-4506-E# show hw-module module 3 port-group

Module Port-group Active Inactive ---------------------------------------------- 3 1 Gi3/7-12 Te3/1-3 3 2 Te3/4-6 Gi3/13-18

4606 Linecard Port Groups

  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

10 9 12 11 16 15 18 17 14 13 8 7

Default


  Complete Flexibility of using 10G or 1G

  The port will always be named TenGigabitEthernet x/y irrespective of optic being used

SUP7-E#show int status module 2

Port Name Status Vlan Duplex Speed Type Te2/1 connected routed full 10G 10GBase-SR Te2/2 connected 400 full auto 1000BaseSX Te2/3 disabled 1 full auto No XCVR Te2/4 disabled 1 full auto No XCVR Te2/3 disabled 1 full auto No XCVR <snip…..snip> Te2/11 disabled 1 full auto No XCVR Te2/12 disabled 1 full auto No XCVR

4712 Line Card Port Group


Sup7-E architecture


Supervisor 7E Block Diagram - Physical

© 2010 Cisco and/or its affiliates. All rights reserved. Presentation_ID 28 28

Catalyst 4500E Sup7-E Dual Core CPU

SUP7-E#show process cpu

Core 0: CPU utilization for five seconds: 24%; one minute: 23%; five minutes: 23% Core 1: CPU utilization for five seconds: 24%; one minute: 19%; five minutes: 19% PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 1 915 918 997366 0.00 0.00 0.00 0 init 2 0 79 10810 0.00 0.00 0.00 0 kthreadd 3 247 43563 5672 0.00 0.00 0.00 0 migration/0 4 57 5786 9923 0.00 0.00 0.00 0 ksoftirqd/0 5   236 41567 5700 0.00 0.00 0.00 0 migration/1

<SNIP>

  Sup 7-E has a dual-core (1.5GHz) CPU

  Increased control plane scalability

  Better routing , L2 convergence

  2GB DRAM by default , upgradable to 4GB

  Allows future Application hosting

© 2010 Cisco and/or its affiliates. All rights reserved. Presentation_ID 29 29

Catalyst 4500E Sup7-E USB Support

SUP7-E#directory usb0:

Directory of usb0:/

38 drwx 16384 Nov 3 2009 13:43:32 +00:00 .rollback_timer 66 -rwx 257615 Nov 16 2009 12:46:52 +00:00 startup-config

  Support Image, Configuration storage, booting

  12 MB/s

  Supported size 4G

  Part number USB-X45-4GB-E


Catalyst 4500E Sup7-E Secure Digital Card

  External storage by SD card on Supervisor 7-E

  Average speed of data transfer between 10 MB/s – 20 MB/s

  Supported size 2G . PID MEM-X45-2GB-E

  Accessed by “dir disk0” command


Supervisor 7-E Uplink Configurations   Supervisor 7-E uplinks can either operate in 10GE or 1GE mode

  All modes are non-blocking

  Any port can be used as 1GE or 10GE without any limitation

  Speed selection is dynamic based on Optic type SFP / SFP+

  Operationally simple

40G

4G

22G

22G

10GE 10GE 10GE 10GE

1GE 1GE 1GE 1GE

10GE 10GE 1GE 1GE

1GE 10GE 10GE 1GE


Redundant Supervisor Uplink Configurations

  Supervisor 7-E uplinks can either operate in 10GE or 1GE mode

  All modes are non-blocking

  Different port speeds can be used on the same or across supervisors

  Speed selection is dynamic based on optic type SFP/SFP+

  Operationally simple

40G 10GE 10GE

10GE 10GE

4G 1GE 1GE

1GE 1GE

22G 10GE 1GE

10GE 1GE

Inactive


Supervisor 7E Packet Processor

Packet Processor

Provides Throughput

Parses Header

RMON Port Statistics

802.1q Tagging/Untagging

Shared Packet Memory (32 MB)

Data Header

Header

Forwarding Engine

Header

Data Header

Data


Supervisor 7E Forwarding Engine

Packet Lookup/Forward

Classification

Policing and Queuing

Replication


Supervisor 7E Forwarding Engine

DMAC/SMAC Lookup, STP, State

of VLANs

Input ACL/QoS

Creates NetFlow Entries and enables

NetFlow features

Stores FIB and adjacency, Unicast and Multicast entries

Output ACL/QoS

Stores VLAN Flood L2/L3 Multicast Receiver OIFs

Used for Dynamic Buffer Limiting

Transmit Queue Used for CPU, Drop and Normal queues


Unicast packet walk


Supervisor 7E Packet Walk

Switch Backplane

Packet Processor

Forwarding Engine

NetFlow Engine

Line Card Line Card


Supervisor 7E Unicast Packet Walk

Packet Processor


Data Header

Header

Forwarding Engine

Data



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup

Forwarding Lookup Memory

Output TCAM

Header

Packet Processor

Layer 2 Lookup Spanning Tree Lookup

Source/Dest MAC Lookup Decision for Layer 3 Lookup



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Header

Packet Processor

Ingress ACL Permit/Deny Input QoS Policing Input QoS Marking



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Packet Processor

NetFlow entries created/updated

Microflow Policing + Input Policing for the packet

NLD

NRD Header



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Header

Packet Processor

Layer 3 Lookup Decision for replication

(multicast) IPv4 and IPv6 FIB



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Header

Packet Processor

Egress ACL permit/deny Output policing

Marking



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Header

Packet Processor

Dynamic Buffer Limiting Avoid congestion in the

output queue



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Header

Packet Processor

Queued in queue memory



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

New header sent out Counters incremented

Header

Packet Processor

NUD



Packet Processor


Forwarding Engine

Header

Data Header

Data


Multicast packet walk



Packet Processor


Data Header

Header

Forwarding Engine

Data


Supervisor 7E Multicast Packet Walk

Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Header

Packet Processor

Ingress ACL Permit/Deny Input Policing

Marking

Replication Module

Replication Queue



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Packet Processor

NetFlow entries created/updated

Microflow Policing + Input Policing for the packet

NLD

NRD Header

Replication Module

Replication Queue



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Header

Packet Processor

Layer 3 Lookup Decision for replication

(multicast) IPv4 and IPv6 FIB

Replication Module

Replication Queue



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Header

Packet Processor

Entry Created in the Replication Table which

includes number of copies of the header

Replication Module

Replication Queue



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Header

Packet Processor

Replication Module

Replication Queue

Replication Module checks the Replication Table to make

header copies



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Header

Packet Processor

Replication Module

Replication Queue

Headers queued in Replication Queue for

respective egress interfaces



Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Packet Processor

Egress ACL permit/deny Output policing

Marking

Forwarding Engine Header

Replication Module

Replication Queue



Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Packet Processor

Dynamic Buffer Limiting Avoid congestion in the

output queue

Forwarding Engine

Header

Replication Module

Replication Queue



Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

Packet Processor

Queued in queue memory

Forwarding Engine

Header

Replication Module

Replication Queue



Forwarding Engine

Queue Memory

DBL Hash Memory

Replication Table

STP Lookup

Input TCAM

NetFlow Engine

Forwarding Lookup


Output TCAM

New header sent out Counters incremented

Header

Packet Processor

NUD



Packet Processor


Forwarding Engine

Header

Data Header

Data


Catalyst4500 IOS XE


Infra Mgmt

Drivers Kernels

IOS Classic IOS XE

Hosted Apps / Service

s Features

Components

Common Infrastructure / HA Management Interface

Module Drivers Kernel

  Modern IOS to enable multi-core CPU

  Allows Lower TCO capabilities such as silent roll, single sup ISSU

  Smooth migration and investment protection with consistent IOS look & feel

  Fast adoption of latest Borderless Networks Services

  Enables open application platform

Next-Gen OS Architecture


Pre 15.0 IOS

IOS Reformation

  Separate IOS Images for Each Package

  Current Sup6/L-E series will remain on this model

With 15.0 IOS

Cisco Software Activation

  Universal IOS image. Feature activation via license

  Ease of Ordering

  Services on Demand

  Supported only on Sup7-E and future

Cisco Software Activation


Catalyst 4500 IOS Licensing

Enterprise Services

BGPv4 IS-IS EIGRP OSPF v2/v3 PBR VRF-Lite IP-SLA NSF Multicast VRF-Lite

IP BASE In Service Software Upgrade Stateful Switchover EIGRP Stub OSPF for Routed Access QinQ IP SLA Responder Network Mobility Services L2PT Multicast Routing Embedded Event Manager HSRP/GLBP/VRRP

Auto QoS Energywise POE + IEEE 802.3at Flexlink+ IGMP/MLD Snooping Rapid-PVST+ IEEE 802.1x Smartports PACL/VACL

LAN BASE

IP BASE


Flexible NetFlow


NetFlow

Network Operation   Capacity Planning   Network Performance Analysis   Historic Performance and Trend Analysis

Security   Real Time anomaly detection   Eliminate network blind spots

Compliance   User Accountability   Enables Industry and Government regulations


  High performance Next-gen ASIC enables scalable and high-performance NetFlow monitoring, supports up to 128K cached flows

  Flexibility User-defined flow records reusable in different flow monitors for different applications with per-port, per-VLAN, or per-port-per-VLAN granularity

  Extensibility In-depth traffic visibility allows monitoring extensive key and non-key fields, including Layer 2, Layer 3 (IPv4 or IPv6), Layer 4 header fields

  Intelligent Customizable Event Policies

  Integration with EEM faciliates highly customizable event-driven policies

  Broad Partner Ecosystem

  Version 9 (the most flexible) format exported to a wide range of industry netflow collectors

Flexible NetFlow on Supervisor 7-E


Flexible NetFlow

Traditional NetFlow vs. Flexible NetFlow

Traditional NetFlow

NetFlow Cache

Fixed 7 keys Export

Flow cache 1

Flow Monitor 1

Flow Monitor 2

Flow Monitor 3

Flow cache 2

Flow cache 3

Export

Export

Export Destination 1

Destination 2

Destination 3

IT team#1

IT team#2

Security focused analyzer

Flexible definition of flow records applied to selected interface or VLAN

Ability to export flow information to multiple collectors/analyzers

Fixed definition of flow record globally Export only to one collector


Flexible NetFlow Record: Key Fields

IPv4 Source IP address

Destination IP address

Protocol

Precedence

DSCP

TTL

Total Length

Interface Input

IPv6 Source IP address

Destination IP address

Protocol

Traffic Class

Flow Label

Total Length

Extension Headers**

DSCP

Next-header*

Hop-Limit

Is-multicast

Transport ICMP Code

ICMP Type

IGMP Type

TCP Source Port

TCP Destination Port

UDP Source Port

UDP Destination Port

• Only first header is reported ** TBD

Layer 2 Dot1q priority

Dot1q Vlan ID

Source MAC address

Destination MAC address

--- New Key Fields in FnF


Flexible NetFlow Record: Non-Key Fields

Counters Bytes

(32 bit counters) Bytes Long

(64 bit counters) Packets

(32 bit counters) Packets Long

(64 bit counters)

Timestamp First Seen

Last Seen

IPv4

TTL Minimum

TTL Maximum

Fragmentation Flags*

ToS

IPv6

Total Length Minimum

Total Length Maximum

Option Header

Hop-limit minimum

Hop-limit maximum

Routing Forwarding Status

Is-multicast

*more fragment fields

--- New Non-Key Fields in FnF

Transport TCP Flags: ACK, FIN, PSH, RST, SYN, URG

Interface Output


Enterprise Class Catalyst 4500E

848Gbps System

82M+ Ports

650K+ Chassis

Industry Leadership

Lower TCO

  Borderless Network Services   Flexible NetFlow

  Power over Ethernet Plus   Energy Efficient Ethernet

  10ms Resiliency   IPv6 functionality

All specifications subject to change without notice

  End-End Campus Platform   Open Application Platform

  Easy Upgrades   Gig/10Gig upgrade flexibility

  Standard service across access


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CELC - Архитектура коммутаторов Catalyst 4500