2010-03-31 - Cisco€¦ · GE SFP,LC connector LX/LH transceiver GE SFP, LC connector SX transceiver 1000BASE-ZX SFP 1000BASE-T SFP CWDM-SFP-1470= CWDM-SFP-1490= CWDM-SFP-1510= CWDM-SFP-1530=

1 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID

Sven Simonsson [email protected]

Partner Update 2010-03-31


Agenda General introduction & Hardware overview of C2960-S

... and 3560-X / 3750X

New ASIC: S88G

FlexStack – Stacking feature on C2960-S family

New Features and differences from C2960

Performance & Latency


Nästa Webinar - 14/4, Marcus Dikvall presenterar:

Cisco User Connect Licensing (UCL). Ny licensmodell för Cisco UC!

Cisco User Connect Licensing (UCL) är en ny användarcentrisk licensmodell för Cisco’s Unified Communica@ons 8.0 produkter. Lyssna in på denna session för aE få reda på mer om hur denna modell underläEar UC configura@oner samt gör Cisco UC/Collabora@on erbjudandet mindre komplex.

Berörda produkter: IP telephony, mobility, conferencing, presence, clients och messaging.


C2960-S TOI: Overview

Functional description

Physical characteristics

Other Hardware features

New CPU – AMCC

Market and customer overview

Performance enhancements


C2960-S Overview

  Catalyst 2960-S series switches – Full Gigabit Ethernet 48 or 24 10/100/1000 downlink ethernet interfaces

10Gigabit uplink functionality in Catalyst 2960 family

  Stackable with FlexStack Technology Hot Swappable Optional FlexStack 20Gig Bandwidth

  Sustainability - GREEN Very low power for Gigabit Ethernet Switch

New EnergyWise functionality to control PHY power

Half the power of C2960G 10 Gig uplinks with SFP+

  802.3at POE+ / POE budget: 740W or 370W Adding POE+ support to C2960 product family

  Supports SFP or SFP+

  Enhanced Limited Lifetime Warranty Next Business Day Replacement (NBD)

90 days TAC support after product ships


C2960-S Model comparison

Model Cisco FlexStack

Stacking 10G SFP+ Ports

1G SFP Ports

10/100/1000 Ports

Full PoE (15.4W) ports PoE Budget

10G Uplink Ports

WS-‐C2960S-‐48FPD-‐L √ 2 48 48 740W (PoE+)

WS-‐C2960S-‐48LPD-‐L √ 2 48 24 370W (PoE+)

WS-‐C2960S-‐48TD-‐L √ 2 48

WS-‐C2960S-‐24PD-‐L √ 2 24 24 370W (PoE+)

WS-‐C2960S-‐24TD-‐L √ 2 24

1G Uplink Ports

WS-‐C2960S-‐48FPS-‐L √ 4 48 48 740W (PoE+)

WS-‐C2960S-‐48LPS-‐L √ 4 48 24 370W (PoE+)

WS-‐C2960S-‐48TS-‐L √ 4 48

WS-‐C2960S-‐24PS-‐L √ 4 24 24 370W (PoE+)

WS-‐C2960S-‐24TS-‐L √ 4 24 LAN Lite 1G Uplink Ports

WS-‐2960S-‐48TS-‐S 2 48

WS-‐2960S-‐24TS-‐S 2 24


C2960-S Characteristics

 10/100 Ethernet for Out Of Band (OOB) network mgmt new for C2960-S series

 USB Flash - type A, external Flash storage

 USB console (type B) and RJ45 console supported

 Dram: 128MB

 On board Flash: 64MB

 Low Latency - No ingress buffering

 RPS support: CAB-E type cable. (CAB-RPS2300-E=)


Catalyst 2960-S SW Enhancements

 GOLD – OnLine Hardware Diagnostics  Crypto images (K9) – shipped from Mfg

Non-crypto images not supported?

 Single SDM Template – Fixed TCAM Resources More security ACL resources than Catalyst 2960 IPv6 functionality built-in to TCAM Resources No modification and reboot required

 9198 Bytes max MTU 9000 bytes max for Catalyst 2960

 OBFL – HW failure logging capability  Increased ACL resources


C2960-S HW Enhancements from C2960   New HW Features over current C2960 family

Fa0 – on front faceplate

OOB mgmt – same C3750E

USB console – on front faceplate

USB Flash – on front faceplate

Gig switch with POE / POE+ - full 802.3at supported

POE+ (support in future IOS release)

Full POE (740W budget for Class 3 devices)

SFP+ on 10Gig switch models only

Power & space savings

  ILET-AUTHENTICATION Main board and FlexStack module

  Performance Increase – Lower Latency

  Less Power consumption More efficient Power supplies


Uplevel conversation – leverage Borderless Network advantage (Borderless Network)

Demonstrate the differentiated value of the IP Base and IP Services offerings, along with technical services

New Catalyst 2960-S, 3560-X and 3750-X warranty have Enhanced Limited Lifetime Warranty

NBD replacement 90 days TAC support

Call To Action

Hardware Warranty

Compelling Hardware Warranty and Software Polices

Software Policy Lifetime software updates (Base image)

Service Package Flat platform pricing on SmartNet

NEW

NEW

NEW


Cisco Warranty Cisco Smart Foundation Cisco SMARTnet

Duration of Coverage

Enhanced Limited Lifetime

▪ 1-year renewable (45% < SNT NBD) ▪ 25% off 1-yr price

for 3 yrs or 40% off 1-yr price for 5

yrs

▪ Annual contracts ▪ Multi-year

contracts

TAC Hours 90 days (9x5) 9x5 to SMB TAC 24x7 Cisco TAC

Web Support For downloading SW releases only

Cisco.com SMB knowledgebase

Cisco.com knowledgebase

Advance Hardware

Replacement (AHR)

NBD NBD AHR ▪ 8x5xNBD AHR ▪ 8x5x4 AHR ▪ 24x7x4 AHR ▪ 24x7x2 AHR

On-Site Support No No Yes

C2960-S Warranty Coverage


C2960-S Market – Who’s Buying

 “Value” customers City Governments

School systems and Universities

 Position in Network : L2 edge switch Campus

 UpSell to C3750-X when HA is a strong requirement

 Very low power Gig Switch

 Low Latency Top Of Rack deployment in Data Centers


C2960-S family Product Photos

C2960-S 1Gig uplink models

C2960-S 10 Gig uplinks models


C2960-S 2 10Gigabit Uplinks Frontpanel

  2 10Gigabit SFP+ interfaces

10/100 Out of Band Ethernet

Management interface

RJ45 Console Interface USB Console (type B)

USB Flash (type A)

Model: C2960S-24TD-L


C2960-S SFP+ 10Gig

  SFP+ supported in 10Gig Models SFP / SFP+ interchangeable

*100MB SFPs Not supported in 10Gig models

  Additional SFP+ models support as released.

See data sheet

SFP+ Module Description

SFP-H10GB-CU1M= SFP-H10GB-CU3M= SFP-H10GB-CU5M=

Copper 10Gig SFP+ modules 1-m , 3-m, 5-m 10G SFP+ Twinax cable assembly

SFP-10G-SR= SFP-10G-LR= SFP-10G-LRM=

Optical 10Gig SFP+ modules 10GBASE-SR SFP+ transceiver module for MMF 10GBASE-LR SFP+ transceiver module for 10GBASE-LRM SFP+ transceiver module for MMF

SFP+


C2960-S Supported SFP modules SFP Transceiver Description

GLC-BX-D= GLC-BX-U=

1000BASE-BX SFP, 1490NM 1000BASE-BX SFP, 1310NM

GLC-FE-100BX-D= GLC-FE-100BX-U= GLC-GE-100FX= GLC-FE-100FX= GLC-FE-100LX=

100BASE-BX SFP, 1490NM 100BASE-BX SFP, 1310NM

100BASE-FX SFP for GE SFP port 100BASE-FX SFP for FE SFP port

100BASE-LX SFP

GLC-LH-SM= GLC-SX-MM= GLC-ZX-SM=

GLC-T=

GE SFP,LC connector LX/LH transceiver GE SFP, LC connector SX transceiver

1000BASE-ZX SFP 1000BASE-T SFP

CWDM-SFP-1470= CWDM-SFP-1490= CWDM-SFP-1510= CWDM-SFP-1530= CWDM-SFP-1550= CWDM-SFP-1570= CWDM-SFP-1590= CWDM-SFP-1610=

CWDM 1470 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1490 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1510 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1530 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1550 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1570 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1590 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1610 NM SFP Gigabit Ethernet and 1G/2G FC

Note: Not all SFP modules supported in all C2960-S models


C2960-S AirFlow

 Air Flow is side to rear.

 Blower pulls air from the sides


C2960-S CPU

 CPU: AMCC 405EX 64MB Flash Memory NOR – Spansion or Intel P30

128MB DDR2 Memory

4 bits of ECC for the DDR2 16 bit bus

PowerPC core (same as CPU on C2960)

 System Clock 33Mhz,

 DDR2 clock is 400Mhz

 GDB command: gdb-bleeding.ppc.405 C2960S-universalk9-mz.sun

{from the directory containing sun file ..}


C2960-S IOS SW

 FCS image : 12.2(53)SE1 Image name: C2960s-universalk9-tar.12.2.53.SE1

“winter 2010” image from LSBU

 Single universal image for all models (including LAN Lite)

 No licensing required. “show license” command will work

License is bound to switch model.

No upgrades

 “K9” by default. No non-K9 image available.

 Future releases for C2960-S on 12.2()SE train from LSBU

 Cannot upgrade from LAN Lite to LAN Base!!!!


C2960-S - Delta from C2960

 SDM Template – Single SDM Template

Different for LANBase and LAN Lite

 LEDs – for Fa0 and active console media (USB or RJ45)

 RPS2300 support - 23-pin DC power input for RPS 2300

 No ingress queuing 2MB egress buffering for all interfaces – same as C2960 asic

 EnergyWise enhancement - PHY power control Set the EW “level” at the interface.

Levels 1-3 will put interface into sleep mode.

Saves ~125mW per interface, 2.5W 24Port switch, 5W 48Port


C2960-S SDM Template  SDM Template for LanBase comparison table TCAM resource C2960-S C2960

Default C2960 QOS C2960 Dual

IPv4 IPv6

unicast mac addresses

8K 8K 8K 8K

IPv4 IGMP groups 0.25K 0.25K 0.25K 0.25K

IPv6 multicast groups

0.25K 0 0 0.375K

IPv4/MAC qos aces 0.375K 0.125K 0.375K 0.125K

IPv4/MAC security aces

0.375K 0.375K 0.125K 0.375K

IPv6 qos aces 0 0 0 0

IPv6 security aces 0.125K 0 0 0.125K

Switch# show sdm prefer


C2960-S Product Numbering System

WS-C2960S-48FPD-L

Switch Type Options: S = S series

Port Type Options: F = Full InLinePower (740W) L = Partial InLinePower (370W) P = Inline Power Model T = Non-InLine Power model D = 10Gig SFP+ UpLink S = 1Gig SFP Uplink

L = LAN Base S = LAN Lite

LAN Base and LAN Lite are distinguished by last Letter

Number of Downlink ports


C2960-S Chassis Dimensions Model Depth Width* Height C2960S-24TD-L / 2x10Gig Uplinks 11.77” 17.50” 1.75”

C2960S-48TD-L / 2x10Gig Uplinks 11.77” 17.50” 1.75”

C2960S-24PD-L / 2x10Gig Uplinks 15.19” 17.50” 1.75”

C2960S-48LPD-L / 2x10Gig Uplinks 15.19” 17.50” 1.75”

C2960S-48FPD-L / 2x10Gig Uplinks 15.19” 17.50” 1.75”

C2960S-24TS-L / 4x1Gig Uplinks 11.77” 17.50” 1.75”

C2960S-48TS-L / 4x1Gig Uplinks 11.77” 17.50” 1.75”

C2960S-24PS-L / 4x1Gig Uplinks 15.19” 17.50” 1.75”

C2960S-48LPS-L / 4x1Gig Uplinks 15.19” 17.50” 1.75”

C2960S-48FPS-L / 4x1Gig Uplinks 15.19” 17.50” 1.75”

C2960S-24TS-S / 2x1GigUplink 11.77” 17.50” 1.75” C2960S-48TS-S / 2x1Gig Uplinks 11.77” 17.50” 1.75”

‘*’ – width is 17.70” when accommodating screws on sides


C3560-X / C3750-X TOI

StackPower

Catalyst 3750-X and 3560-X Series


Catalyst 3750-X and 3560-X Series System Characteristics

Management ports with configurable behavior

RJ45 serial & USB type-B consoles

10/100 Ethernet port for OOB management Support SFP+ for 10G instead of X2 USB port Type A for Storage, All Cisco supported USB flash drives

Type mini-B as console port in the front DRAM 256 Mbyte, Flash 128Mb

Full support for network based power management – EnergyWise

System Characterstics

LAN Base vs. IP Base and IP Services Highlights

Supports StackWise Plus


Catalyst 3750 Models comparison Catalyst 3750 Models Comparison


Catalyst 3750-X & 3560-X Model comparison Catalyst 3750-X & 3650-X

31 © 2009 Cisco Systems, Inc. All rights reserved.

Cisco Confidential

HARDWARE ARCHITECTURE POWER TRAIN

Core Features

Hardware Arhitecture Power Train

Under the hood


Cat3k X-Series Power train

StackPower & XPS

The ability to load share power between systems in a “Power Stack” for “pay-as-you-grow”, redundancy, and Green Power reasons.

Power Supply – Front End Power FRU-able, high density, efficient AC and DC input supplies

BMP – Board Mount Power (Down design) An Intermediate Bus Converter to enable and transform 56v down to 12v

Efficient DC-DC converters

Instrumentation to collect vital statistics (power, voltage) and “black box recording” capabilities

Cat3k X-Series


StackPower Main features

Innovative technology, aggregates and shares available input power capacity in a Stack

Flexible arrangement of power supplies in a stack

Up to 8.8Kw power in a stack

Supports a “zero-footprint” RPS deployment Intelligent load shedding

Stackpower decouples a PS from its physical location in the stack! Up to 4 switches can be part of Stackpower Independent from Stackwise (Stackwise Plus)

No need for RPS though an XPS is available!

Industry Leadership

StackPower


StackPower Close up

Redundant, Dual PS, either AC/AC, AC/DC, AC, or DC combinations

StackPower Cables

FRU Dual Redundant Fans

Same Stackwise Plus

Console, 10/100 port, and USB type A

StackPower Close up


StackPower Modes & Topology Power Share, Redundant Modes, & RPS mode

The Catalyst 3750-X supports Power share, Redundant, & RPS modes

Includes power sharing across Cat3750X switches

Ring & Star topologies

Ring is Stackpower & Star is XPS

XPS (future availability) can Not be deployed in a Ring topology

The power shelf can not be part of a Stackpower ring

The Catalyst 3560-X ONLY supports RPS mode with an XPS

In the Star Topology, a XPS must be the hub

Up to nine switches can be connected to the power shelf

Either Catalyst 3750-X, Catalyst 3560-X or a combination of switches.

XPS detects Catalyst 3750-X Vs. Catalyst 3560-X

StackPower Modes & Topology


Stackpower topologies Ring and Star

Two deployment topologies:

Ring – a maximum of 4 switches in a Stackpower

Star – up to 9 switches, attached to a Power shelf

Up to 20 PS in one power stack (include the Power shelf PS)

Stackwise can span over two power stacks (4 switches)

Power stack can span over two or data stacks too but it is Not Recommended!

StackPower 1

StackPower 2

One Data Stack (Stackwise)

Stackpower topologies


StackPower Capabilities Overview

715w

350w

715w

350w

Switch A Full POE on 48-ports 740w PoE Need = 986w

Switch D 48-ports, Data Only, Needs 246w

Switch C Full POE+ on 48-ports 1,440w PoE Needs 1,686w

Switch B 48-ports, Data Only, Needs 246w

Power requirements: 246w * 4 + 740 + 1440 = 3,172w Available Power = 2,130w Deficit = 1,042w

Options: 1) Add one 1,100w PS slot B of any switch to cover the deficit.

2) Add two 1,100w PS to any two switches in slot B to cover 1,042w deficit plus 1,100w for redundancy. Extra capacity for zero-footprint RPS functionality.

Note capability to boot up a switch that doesn’t have a PS and even provide PoE+ on that switch. Stackpower can provide complementary power as well as Redundant power depending on requirements and configuration.

X

X

X

X

StackPower


StackPower Modes Power share, Redundant, RPS modes

Power Sharing mode Redundant mode

Entire available power of 3,300w is available to the system. Switch and PD requests for more power is granted until all 3,300w are used. No redundancy

Overall capacity is 3,300w –1,100w is reserved for redundancy. Available Power to share is 2,200w and there is an extra 200 W available for allocation. Should a PS fail, then the reserved power is made available for the stack.

B

A

B A

A

A

B

1,100w 0w

500w

500w

500w

500w

B

1,100w 1,100w

B

A

B A

A

A

B

1,100w 0w

500w

500w

500w

500w

B

1,100w

Reserved Power 1,100w

StackPower Modes


Best Practice Balance PS across the stack

Total Input Power = 5,400w

Total Output Power = 4,400w

The right half generates only 20A but consumes 80A

Stackpower cables are limited to ~40A

In failure scenario, Stackpower could be oversubscribed; console messages will warn about the condition and Intelligent power shed will occur.

500w

500w

A B

1,100w

1,100w

A B

1,100w

1,100w

A B

2,000w

A B

2,000w

200w

200w

X 30 A

60 A

30 A

Recommendation: 1.  Balance PS across all systems, and

•  insist on filling up PS slot A on every switch in the stack, before using slot B on any switch!

Best Practices


Intelligent Load shedding

The amount of load shedding depends on the amount of oversubscribed power

Actual – power drawn

Allocated – assigned power from available pool

Shed power – amount of power in excess of allocated power

Intelligent mechanism to shed load during failure scenarios

Built-in intelligence detects important PD or switches in a stack

Shedding is based upon priorities

Can be customized

Intelligent Load shedding


Show commands

show stackpower

Stackpower mode and name

Load shedding priorities – switch, high and low priority ports

Neighbor status and MAC addresses

Detailed info about each power stack

Multiple power stack per data stack are possible.

Total available power, Used power, Remaining power

Show commands


Show commands… Priorities

Show stack-power Power stack name: Powerstack-11 Stack mode: Power sharing Switch 3: Power budget: 1646 Low port priority value: 21 High port priority value: 12 Switch priority value: 3 Port 1 status: Not shut Port 2 status: Not shut Neighbor on port 1: 0027.0d3b.d300 Neighbor on port 2: 0027.0d3b.de00

Switch 2: Power budget: 1646 Low port priority value: 22 High port priority value: 13 Switch priority value: 4 Port 1 status: Not shut Port 2 status: Not shut Neighbor on port 1: 0027.0d3b.d780 Neighbor on port 2: 0027.0d3b.d300

Show commands


Show commands…

show env all Display status of each power supply

show power inline

Display available/used PoE power

PoE power contributed to the pool by each PS

Show power inline priority

Display priority level for every port in the stack

Show commands


Stackpower Scalability Stackwise vs. StackPower

Why a power stack supports only 4 switches?

UL requirement of 41.6A per power stack port StackPower cable max length 1.5m

A switch cannot share more than ~2000w per stack port

Safety devices built-in to prevent over-current

Just FET (Field Effect Transistor) open up circuit and cut current flow…Safe!

Stackpower Scalability


Cisco StackPower Summary

Better utilization of available power capacity and sharing

Scalable infrastructure for PoE+

Improved reliability and efficiency

PS can be configured as redundant failovers

Complements PoE+ on switches with smaller PS

“zero footprint” RPS (Redundant mode)

Except in a fully loaded POE+ stack (Stackpower of 4 w/ all PoE+)

Increased HA via a resilient Redundant power system

Pay-as-you-grow architecture – similar to Stackwise

Cisco StackPower


Cisco StackPower Summary (cont.)

1+n redundancy Vs. 1:n redundancy

1+n is better because power is already available online! Efficiency improvements –Green Power feature

Off-lining supplies when extra capacity is available in the system

Not automatic but customer driven action! Flexible installations – AC outlet requirement is reduced

four x 250W PS vs. one x 1.1KW PS

“zero footprint” RPS, no need for more outlets and cooling in the closet.

Cisco StackPower


Dual Redundant Power supplies & fans Main features

New high efficiency PS

Support for two FRU power supplies per switch

Can combine AC and DC power supplies

Second PS is for redundancy or supplemental power

48-port of PoE+ requires 1.4KW

Flexible PS options including DC with PoE support Ability to off-line a PS and draw power from the stack

FRU redundant Fans

FRU redundant Power supplies

Dual Redundant Power supplies & fans


Dual Redundant Power supplies & fans Main features

Four PS options

1100W AC – C3KX-PWR-1100WAC



440W DC – C3KX-PWR-440WDC (future availability)

Dual, redundant, high efficiency PS

Can combine AC & DC PS in the same switch

Redundant fans Models

24 Port Data Switch 48 Port Data Switch 24 Port PoE Switch 48 Port PoE Switch 48 Port Full PoE Switch

Default Power Supply

C3KX-PWR-350WAC

C3KX-PWR-715WAC

C3KX-PWR-1100WAC

Available PoE Power

N/A

435W

800W

Dual Redundant Power supplies & fans


Power Supply – Front end Power Typical Efficiency curve

80% Efficiency at 10% load

Efficiency up to 92% at any load between 25% and 90%

New Power supplies Older Power supplies

Power Supply


C2960-S TOI – S88G - ASIC

New ASIC S88G

Physical characteristics

Asic Architecture

Path of a packet in the ASIC


What is Strider88G?

 Single Chip 48G + 4XG switch ASIC  Integration of:

  4 x Strider (port asic) ASICs with table sizes optimized for C2960   1 x MadMax (switching asic)

 QSGMII phy interface for low power and savings in PCB routing space

 PCI-e supervisor interface for future proofing and SMB support

  For a 48G + 4XG SKU, the Strider88G advantages over a StriderCR/MadmaxCR solution are:

  ASIC count goes from 5 to 1   Power Dissipation goes down from 90W to 25W   Component savings   MTBF


Strider88G Architecture

Reused from Strider and MAD Max Core

Vendor Core

New Design

XGXS x4

Strid

er D

P

26x1

G

Network Interface

PCIe x1

HULC MIC

QSGMII x12

Supervisor Interface

Strid

er D

P

2x10

G

Strid

er F

C

TX Packet Buffer

MEM MEM

MEM MEM

MADMAX

FIFO

•  Asic S88G (aka Strider 88G) •  C2960-S first switch family to use the ASIC. •  Using components from C3750-E series switch.


Changes From StriderCR

 Reduced Forwarding Table sizes:  1.5Kx276 hwm TCAM for ACL – SW merge TCAM

removed  L2 table size reduced from 16K -> 8K; L3 table 8K -> 2K  256 entry overflow TCAM for L3 routes and overflow

entries

 Reduced TX Buffer size:  Strider supported 2MB (4 Striders = 8MB)  Strider88G will support 2MB total buffer size

 Replaced: SGMII with QSGMII

 Increased: FC speed from 166MHz to 282MHz

 Added: PCI-e supervisor interface  Added: Network Processing Mode for Stack interfaces


Major Interfaces per Slice/Data Path  A Slice is ¼ of the ASIC. 4 Strider slices in 1 S88G

Slice is also referred to as a Data Path

 12 QSGMII – (Quad Serial Generic Media Independent Interface) combines four GigE lanes into a single serial channel at 5Gbps

 1 PCIe 1.1 – (Peripheral Component Interconnect express) serial 2.5Gbps interface, 250MBytes per second rate. PCIe is a layered protocol, consisting of a Transaction Layer, a Data Link Layer, and a Physical Layer.

 4 XAUI: Each XAUI Interface supports: – 10G Mode (XAUI): Four 3.125Gbps channels – Dual GigE Mode: Two SGMII – Interface supports the X2 , CX4, and SFP+ modules

 HULC MIC interface - Not used by C2960-S


System Block Diagram


3 * 4I

C2960-S Asic ‘S88G’ Diagram based on C3750E ASIC

  4 Data paths, 2 Strider Forwarding Controllers

  2 slices in the ASIC. Slices share a Forwarding controller

  All Data paths share the Universal Packet Buffer

Slice1 Data Path1

Slice1 Data Path2

Shared Fwd Ctlr (TCAM)

Slice2 Data Path1

Slice2 Data Path2

Shared Fwd Ctlr (TCAM)

Universal Packet Buffer (UPB) 2MB

2* 10G MAC or Stack Port

2* 10G MAC or Stack Port

MAC Layer 8 ports 3 * 4G QSGMII 3 * 4G QSGMII MAC Layer 8

ports

Octal Phy Octal

Phy Octal Phy

Octal Phy Octal

Phy Octal Phy


Transmit Fifo

C2960-S ASIC ‘S88G’ Packet Flow Showing Single Data Path

 Ingress and Egress flow on S88G for a single Data path.

MAC Layer Vlan Decapsulation Ingress

UPB (Shared for all 4 Data paths)

Receive Port Fifo

Receive Data Fifo

FWD Controller

Packet Header &

Descriptor

Packet Header & Descriptor

MAC Layer Vlan Decapsulation

Egress

MAC Vlan Encap

MAC Vlan Encap

Port 0 Port 1 Port 2

Sneak port

Packet, Packet

Header & Descriptor

Packet Packet

Port 14 Port 15 Port 16 Supervisor Intf

Packet Header

Fifo

Fifo

Fifo Scheduler controller

Transmit Port & Queue SRR Scheduler

CPU

Frame Descriptor & Control

Packet

Packet

Packets

Packets


C2960-S Stack Port Mapping

 Stack ports are 10Gig interfaces running in “NP” mode NP = Network Processor

An additional Stack header is pre-pended to the packet prior to egress

 Stack ports on different Data Paths on different models Model Stack port

1 Stack port 2

10Gig uplink 1

10Gig uplink 2

C2960S-48LPS-L C2960S-48FPS-L C2960S-24PS-L C2960S-48TS-L C2960S-24TS-L

DataPath 0, port 14

DataPath 1, port 0

NA NA

C2960S-24TD-L C2960S-48TD-L C2960S-24PD-L C2960S-48FPD-L C2960S-48LPD-L

DataPath 1, port 0

DataPath 1, port 14

DataPath 0, port 0

DataPath 0, port 14


C2960-S Asic: Port Asic to Interface map

  C2960S-48LPS_# show platform pm if-numbers   interface gid gpn lpn port slot unit slun port-type lpn-idb gpn-idb   ----------------------------------------------------------------------   Gi1/0/1 1 1 1 0/2 1 1 1 local Yes Yes   Gi1/0/2 2 2 2 0/1 1 2 2 local Yes Yes   <snip>   Gi1/0/9 9 9 9 0/10 1 9 9 local Yes Yes   Gi1/0/10 10 10 10 0/9 1 10 10 local Yes Yes   Gi1/0/11 11 11 11 0/12 1 11 11 local Yes Yes   Gi1/0/12 12 12 12 0/11 1 12 12 local Yes Yes   Gi1/0/13 13 13 13 0/16 1 13 13 local Yes Yes   Gi1/0/14 14 14 14 0/15 1 14 14 local Yes Yes   Gi1/0/15 15 15 15 0/18 1 15 15 local Yes Yes   Gi1/0/16 16 16 16 0/17 1 16 16 local Yes Yes   <snip>   <member Change>   Gi2/0/22 76 76 22 1/23 2 22 22 remote No Yes   Gi2/0/23 77 77 23 1/26 2 23 23 remote No Yes   Gi2/0/24 78 78 24 1/25 2 24 24 remote No Yes   Gi2/0/25 79 79 25 0/13 2 25 25 remote No Yes   Gi2/0/26 80 80 26 0/27 2 26 26 remote No Yes   Te2/0/1 81 81 27 0/0 2 1 27 remote No Yes   Te2/0/2 82 82 28 0/14 2 2 28 remote No Yes   Gi3/0/1 109 109 1 0/2 3 1 1 remote No Yes   Gi3/0/2 110 110 2 0/1 3 2 2 remote No Yes

Asic Port 13 & 14 are missing

Asic ports 0, 13, 14 used for TenGig and Stack ports

Asic port 0, 14 are TenGig


C2960-S TOI - FlexStack

FlexStack – Stacking on C2960-S FlexStack overview

FlexStack: path of a packet

Passive link

QOS Stack port

Queue set

Statistics


Catalyst 2960-S FlexStack

 FlexStack available with optional Module Hot Swappable with two wire-speed 10G ports

Copper cables, NOT fiber. No SFP needed

 Up to 4 switches in a stack

 Unified switch management, and control similar look and feel as StackWise

 3 FlexStack Cable lengths supported. Cisco Proprietary 0.5 meters, 1.0 meter, 3.0 meter


C2960-S FlexStack Stacking

 Cross-stack EtherChannel, SPAN, and FlexLink supported

EtherChannel physical links across stack members

 Pre-Provisioning of stack members supported  Easy member addition and replacement  Configurable Stack Master

Following same Master election rules as StackWise Plus

 Support same CISCO-STACKWISE-MIB  Single Spanning tree node: No spanning-tree across

stack  Stack link topology change is handled in SW, not HW

Data flow recovery needs SW involvement


C2960-S FlexStack Module  FlexStack Module inserted in the left rear of the switch.

 FlexStack module is optional for C2960-S switch operation

 Yes – Hot Swappable

 Blank plate required when FlexStack Module not inserted

Note: Tabs on FlexStack cables are opposite each other


C2960-S No Flex StackModule Blank Inserted

 The Blank module must be present if the FlexStack Module is not present.

Required for proper airflow.

Same physical dimensions for Switch with or without FlexStack module


 Not a ring Architecture. Packets traverse stack Hop by Hop

 Local switching of unicast packets Not switched to Stack ports unnecessarily

 Proprietary header of 32Bytes pre-pended on all stack packets

 Packet path determined using “shortest path” like algorithm.

based on Ingress member.

All members see the Bcast & Mcast packets

Catalyst 2960-S FlexStack - Details


2960-S Stacking Ease of Use

3750-X StackWise Plus Ease of Use and High Availability

Device Limit 4 units 9 units Stack Bandwidth 10G / 20G 32G / 64G

Architecture Hop by Hop Ring (Destination stripping) Dynamic Ring Load

Balancing No Yes

Stack Convergence 1-2 seconds Few milliseconds Stack QoS Applied hop by hop Applied on ingress

Management Single IP address, SNMP, SYSLOG Single IP address, SNMP, SYSLOG

Configuration Single config and CLI, auto image and config update

Single config and CLI, auto image and config update

Show and Debug Commands Unified Unified

Single Forwarding and Control Plane

Synchronize ARP, MAC Address, IGMP, VLAN tables

Synchronize ARP, MAC Address, IGMP, VLAN, Routing tables

Cross-Stack Features Yes Yes

Single Bridge-ID Yes Yes

Preprovison members Yes Yes

Redundancy Stack master 1:N redundancy Stack master 1:N redundancy

Easy member replacement Yes Yes

FlexStack – StackWise Plus


C2960-S Managing FlexStack

 FlexStack operationally equivalent to C3750

 Includes: IOS image upgrades

Single Master controls stack

Master election

Member insertion and replacement C2960S-48LPS(config)# switch 1 ? priority Set the priority of the specified switch provision Configure Switch provision / offline config renumber Renumber the specified switch number C2960S-48LPS(config)# switch 1 priority 14 Changing the Switch Priority of Switch Number 1 to 14 Do you want to continue?[confirm] New Priority has been set successfully C2960S-48LPS(config)# switch 3 provision ws-c2960s-48ts-s


C2960-S Managing FlexStack cont.

 Show commands for managing FlexStack C2960S-48LPS# show switch ? <1-4> Switch Number detail show detailed information about the stack ring neighbors show each switch's neighbors stack-ports show the status of the stack ports stack-ring show stack ring | Output modifiers <cr> C2960S-48LPS# show switch Switch/Stack Mac Address : 0022.bdc4.1d80 H/W Current Switch# Role Mac Address Priority Version State ---------------------------------------------------------- *1 Master 0022.bdc4.1d80 14 1 Ready 2 Member 0026.0ac1.3e00 10 1 Ready


C2960-S Stack Port: unique Behavior

 Stack ports – 10Gigabit interfaces Same limitations as “normal” 10Gig interfaces

FlexStack Header tax (38B) for each packet transmitted on stack

 Drop Table Packets dropped on Ingress Consumes buffers on egress on other side!!

 Stack Port Queues “Share” BW only. Cannot be Shaped

No Expedite Queue possible

No user interface to modify Sharing BW configuration

Stack Queues share BW equally: 1/6 each queue

Cannot be changed.


C2960-S FlexStack Stack Manager Msgs  Uses Queue 5 and 6 for Stack Manager packets

On stack Links only

SDP - Stack Discovery Protocol (Queue 5)

HRPC – HULC Remote Procedure Call (Queue 6)

Process to process communication (eg: mac address table)

 Number of packets/sec depends on stack size

 In 4 member stack, normal FlexStack protocol traffic is: SDP (Q5) 17 packet/sec

HRPC (Q6) 165 packet/sec

This is per stack link.


FlexStack Architecture Overview  Not a Ring Architecture!

Packets traverse stack members hop by hop

 Both Stack Links active and Fwd

 No load balancing on stack ports All Flows use same physical path

 Passive link stops Broadcasts Shortest path algorithm used to determine passive

link

Passive link uses ingress member to determine drop

packet header contains ingress member id

All members see flooded packets once SW1

SW3 SW2

A.  Packet enters stack on member 1 B.  Packet FWDd on both stack links •  Packet dropped between 2 & 3

B. Packet FWD on stack link

3 member stack Bcast packet example

Passive link on member 2 & 3 drop packets from member 1

prevents Bcast loops

B. Packet FWD on stack link


BroadCast Packet Behavior 4 member stack

C. BCAST loop is broken by passive

link between members 2 & 3

SW1

SW2 SW4

A. Packet enters stack on member 1

B. Packet FWD on stack link B. Packet FWD

on stack link

SW3

B1. Packet FWD on stack link

Packet with Dest Unknown enters stack on Member 1 downlink port.

From member 1, packet is FWD’d to members 2 & 3

Packet is FWD’d to SW3 from SW4

Packet is NOT FWD’d between 2 & 3 Asic on members 2 & 3 drops pkts based on source member 1.


C2960-S FlexStack Packet Flow, BCAST

 Packet flows in C2960-S stack are hop by hop.  L2 Destination Unknown, MCAST, BCAST all the same  Passive Link does not fwd packet between member 3 & 4

Member 1

Member 2

Member 3

Member 4

Passive Link prevents Fwd of packet between

members 3 & 4

Bcast Packet ingresses member 1

BCAST packet egresses on all interfaces FWDing on that vlan for all members


FlexStack: Traffic Type Behaviors

 These types of connections will flood traffic throughout Stack

Cross Stack EtherChannel – all traffic towards EC. Flexlink / Backup interface – all traffic towards the FL Port monitor traffic with destination interface on another member

 These types of traffic will flood traffic throughout Stack Unknown Unicast MCAST – even if only destination is local. BCAST

  Known Unicast traffic is not flooded Unless towards EC or FL

  Known Unicast packets do not egress on stack if locally switched

Big difference from Stackwise Similar to Stackwise+ on C3750E


FlexStack – Drop Table & Passive Link  Every Stack port is active and forwarding

In 2 member stack, stack port 2 unused for data traffic

 Passive Link based on “Shortest Path” like algorithm Similar to Spanning Tree link costs

 Packets are dropped based on source member Source member = switch member from which packet entered the stack. Passive Link: as far from source member as possible

 Passive Link prevents BCAST storms (flooded traffic)  Packets dropped on egress.

Not counted because not dropped because of congestion

 Bcast, Mcast and unknown UniCast packets hit every member.

 “Passive link” is the link between two members Packets “appear” to drop on the passive link

 “Passive” link is being message by marketing. It sounds better than drop table.


C2960-S The Drop Table “Passive Link”  Stack Link Neighbor Table – 4 member stack

4

3

2

1 2

2

2

2

1

1

1

1

C2960S-48LPS_#show switch neighbors Switch # Port 1 Port 2 -------- ------ ------ 1 2 4 2 3 1 3 4 2 4 1 3

Passive links color coded

C2960S-48LPS#show platform dtm drop-table Stack Port 1 Drop Tables: Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 FORWARD 4 BLOCK Stack Port 2 Drop Tables: Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 BLOCK 4 FORWARD

Drop table for member 1


C2960-S The Drop Table “Passive Link”  Stack Link Neighbor Table – 4 member stack

4

3

2

1 2

2

2

2

1

1

1

1

C2960S-48LPS_#show switch neighbors Switch # Port 1 Port 2 -------- ------ ------ 1 2 4 2 3 1 3 4 2 4 1 3

stack port

Ingress Member

1 2 3 4

1-1 BLK

1-2 BLK

2-1 BLK

2-2 BLK

3-1 BLK

3-2 BLK

4-1 BLK

4-2 BLK

Passive links color coded

Drop table “table”, with color coded

Passive links All members shown


4

3

2

1

2

2

2

1

1

1

C2960-S Passive Link Example: BCAST  Member 1 Bcast ingress, use drop table to

determine stack passive link member 1 2 3 4 1-1 BLK 1-2 BLK 2-1 BLK 2-2 BLK 3-1 BLK 3-2 BLK 4-1 BLK 4-2 BLK

1. Packet ingresses on member 1 2. Packet forwarded to member 4 and member 2

2

3. Packet dropped on egress to port 1 on member 2 member 4 Forwards packet on stack port 2

4. packet dropped on egress to port 2 on member 3


C2960-S Drop Table

4

3

2

1 2

2

2

2

1

1

1

1

C2960S-48LPS_#show platform dtm drop-table Stack Port 1 Drop Tables:

Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 FORWARD 4 BLOCK

Stack Port 2 Drop Tables: Node ID BLOCK/FORWARD

1 FORWARD 2 FORWARD 3 BLOCK

4 FORWARD

 Drop table output from member 1

Drop table output from member 2 C2960S-48LPS_# session 2

C2960S-48LPS_-2#show platform dtm drop-table Stack Port 1 Drop Tables:

Node ID BLOCK/FORWARD 1 BLOCK

2 FORWARD 3 FORWARD 4 FORWARD

Stack Port 2 Drop Tables: Node ID BLOCK/FORWARD

1 FORWARD 2 FORWARD 3 FORWARD 4 BLOCK

Note Same color, they

block packets from member

4

stack port

Ingress Member

1 2 3 4

1-1 BLK

1-2 BLK

2-1 BLK

2-2 BLK

3-1 BLK

3-2 BLK

4-1 BLK

4-2 BLK


C2960-S FlexStack Drop Table, Non Redundant Link

 When at least 1 stack link is down, all StackLink interfaces fwd for all members.

4

3

2

1 2

2

2

2

1

1

1

1

C2960S-48LPS_#show platform dtm drop-table Stack Port 1 Drop Tables: Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 FORWARD 4 FORWARD Stack Port 2 Drop Tables: Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 FORWARD 4 FORWARD C2960S-48LPS_-3#show platform dtm drop-table Stack Port 1 Drop Tables: Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 FORWARD 4 FORWARD Stack Port 2 Drop Tables: Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 FORWARD 4 FORWARD

C2960S-48LPS_#show switch neighbors Switch # Port 1 Port 2 -------- ------ ------ 1 2 None 2 3 1 3 4 2 4 None 3

Documents

2010-03-31 - Cisco€¦ · GE SFP,LC connector LX/LH transceiver GE SFP, LC connector SX transceiver 1000BASE-ZX SFP 1000BASE-T SFP CWDM-SFP-1470= CWDM-SFP-1490= CWDM-SFP-1510= CWDM-SFP-1530=