ACE Overview

ACE Overview

Presented by:CBNetworksTechnical SupportEmail : [email protected]

ACE Overview TS-2006 Slide 2

Agenda

• Introduction• RAD ATM Products• Typical Applications• Key Features• Summary - Worldwide References


ATM Market Trends

• ATM still remains a major data transport network technology for incumbent carriers

• Carriers can use ATM to generate new revenue using existing infrastructures

• Deployment of 3G cellular networks• Continuing growth in DSL leads to increased investments in

ATM


Important Benefits of ATM

• Proven reliability• Allows flexible multiservice traffic adaptation • Scalability based on existing infrastructure• QoS assurance based on the OAM functionality• Traffic Management - allows network bandwidth utilization• New services based on GbE/MPLS infrastructure are

emerging but ATM is still more widespread


EthernetSwitch

AccessConcentrator

EthernetNTU

ATM

New services & CPE’s IP, LAN

Legacy servicesExisting CPE’s

PBX-Voice

Common ATM Applications

• Native ATM• Legacy services emulation (LAN, TDM, FR etc.)• VLAN applications over ATM• DSL service concentrator• Cellular backhauling


RAD ATM ProductsInterworking Network Termination Units

ACE-52 • Low-cost interworking CLE for LAN

and TDM/Voice services over ATM

ACE-201 • Low-cost interworking CLE for

GbEth• Enhanced Port Density• Enhanced number of connections• FE or GbE ports

ACE-52

ACE-201


RAD ATM ProductsMultiservice Access Concentrators

ACE-202• Two modular slots for user and

network interface modules• Optional additional built-in user

interfaces

ACE-2002• Four modular slots for user and

network interface modules

ACE-2002

ACE-202

ACE-2002E ACE-2002E• High port density version


RAD ATM ProductsCellular Aggregators

ACE-3100• Cellular Backhauling• Aggregate 4 E1/T1/J1 ports • Two STM-1 ATM ports• 1 FE for OOB management and

alarms

ACE-3200• Cellular Backhauling• 8 or 16 E1/T1 “ASAP” (Any Service, Any

Port UNI/IMA/CES flexible configuration)• Two STM-1 ATM ports• 1 FE for OOB management and

alarms

ACE-3200

ACE-3100


RAD ATM ProductsCellular Aggregator

ACE-3400 • Optional E1/T1/J1 interfaces:

• 63 E1/T1 Multi-Service ports (TDM, ATM)

• Optional optical interfaces:• Up to 2 GE• Up to 2 STM-1 UNI (3rd for optional APS)• Up to 2 Channelized STM-1• 1 FE for OOB management and alarms

• No single point of failure• Redundant core, PS, fans, uplinks ports

• 3U, 19’’, Fully modular


RAD ATM ProductsCellular Aggregator

• Optional optical interfaces:• Up to 2 GE• Up to 2 STM-1 UNI (3rd for optional

APS)• Up to 2 Channelized STM-1• 1 FE for OOB management and

alarms • No single point of failure

• Redundant core, PS, fans, uplinks ports

• 2U, 19’’, Fully modular

ACE-3402


ACE Comparison Table-1I-NTU Multiservice

Feature ACE-52 ACE-201 ACE-202 ACE-2002 ACE-2002E

Modular N/A N/A V * V VUser slots (Up to) N/A N/A 3 3 3User ports- maximum FE ports 2 2 3 3 6User ports- GB-ETH N/A 1 N/A N/A N/AMaximum E1 ports 1 4 5 12 20Maximum connections 32 512 256 1024 1024

Inband management V V V V VOut of band management N/A N/A N/A V VPlug & Play V V V V VAlcatel descriptor N/A N/A V V VSupported Rates (Up to) STM-1 STM-1 STM-1 STM-4 STM-4Built-in Shaper V V N/A V(optional) N/AInternal buffer 3050 Frames 3050 Frames 65000 cells 65000 cells 65000 cellsStatistics per connections V V V V VAPS on Network N/A N/A V V VAPS on User N/A N/A V V VOAM support V V V V V

* Slots #1 and #2 are modular


ACE Comparison Table-2

Cellular Backhauling & E1/T1 Aggregation

Feature ACE-3100 ACE-3200 ACE-3400 ACE-3402

Modular N/A N/A V VRedundant main card N/A N/A V VRedundant PS N/A V V VActive STM-1 ports (Up to) 2 2 2 2Active CH-STM-1 N/A N/A 1 1Maximum E1/T1/J1 ports 4 16 63 N/AMaximum connections 128 128 1000 1000

Inband management V V V VOut of band management V V V VSupported Rates (Up to) STM-1 STM-1 STM-1 STM-1Built-in Shaper V V V VInternal buffer 64000cells 64000cells 64000cells 64000cellsStatistics per connections V V V VAPS V V V VOAM support V V V VExternal clock port N/A N/A V V


Native ATM (A-NTU) Application

Traffic Management• Traffic Shaping/

Spacing• Policing

OAM flows• Fault Notification (AIS/RDI)• Continuity Check• Loopback• Performance Monitoring

Traffic Monitoring• Per Port• Per Connection• Statistics Upload to

the NMS

Public ATM Services

Customer PremisesPOP

Customer PremisesPOP

Customer PremisesPOP ATM

Device

ATMDevice

Switch

ACE-202

ACE-202

ACE-2002STM-4

Switch

Switch

ATMDevice

NMS


Branch Office

LAN and Voice Access (I-NTU)

• Integrating LAN/IP over Frame Relay or HDLC interfaces and voice services over ATM for inter – office connectivity

• Full VLAN support – VPN infrastructure over ATM including L2 priority• Frame Relay – Support of FRF.5 and FRF.8 encapsulation

PBX

LANSwitch

Branch Office

HQ

PBX

PBXE1/T1, IMA, E3/T3, STM-1, STM-4

Public ATM-based Network

ACE-52

ACE-202

STM-1

ACE-2002 Switch Switch

Switch

RouterFR/HDLC

E1/T1, IMA, E3/T3, STM-1

NMS


DSL ServiceConcentrator & NTU

• Traffic concentration from multiple DSLAMs (7 to 1 STM-1 link concentration)

• Demarcation device between DSL/ATM access and IP networks• Traffic management towards ATM access network• Performance monitoring of ATM access and DSL access spans

based on I.610 OAM

Modem

Customer Premises

IPNetwork

Up to7 DSLAMs

DSL

DSLAM POP

ACE-2002ATM

DSL Access Span

ATM

ATM

ATM

ATM Access Span

ACE-2002

DSLAM

DSLAM

ATMNetwork


VLAN Stacking

• The ACE acts as an ATM gateway, extending Metro services to remote customers over wide span ATM network

• Similarly, the ACE can be used to connect ‘islands’ of metro Ethernet over ATM national network

• To allow this application VLAN stacking was added to the ACE so each ATM VC is mapped to a Service Provider (SP) VLAN

*SP VLAN – Service Provider VLAN*C VLAN – Customer VLAN

LocalCustomer

Ethernet STM-1

RemoteCustomer

FrameC VLAN*SP VLAN*

Adding SP VLAN according to VC

FrameC VLAN

FrameC VLANSP VLAN FrameC VLAN

Removing the SP VLAN

ACE-2002 ACE-52

LocalCustomer

ATMNetwork

MetroEthernet


ATM Based VPN

• Total separation of VLANs throughout the WAN – Saves equipment and ports• Control of bandwidth and priority of each VLAN• Set priorities for up to 8 different services within a single VLAN

ACE-2002

ACE-2002E

Public ATM-based Network

ACE-52ACE-202

Supplier

Branch OfficeHQ

Switch

STM-1

STM-1

ACE-2002E1/T1,

IMA, E3/T3, STM-1, STM-4

Switch Switch

Switch

ACE-52

ACE-202

Branch Office

ACE-201

E1/T1, IMA, E3/T3, STM-1

NMS

GbEth

ACE-201


VLAN=40

Typical VLAN ApplicationUntagged

Untagged

Untagged

VLAN=30

ATM

VLAN=10

VLAN=40

VLAN=20

VLAN=30


LAN Module Bridge

Bridge

Ethernet Port

ATM PVCs1,2,3,4

1

1

2

3,4


PVID-Port VLAN Identifier

• When entering the bridge, untagged frames are always tagged• The VID given is the PVID of the Ethernet port or ATM PVC

Bridge

1,2PVID=1

1Untagged Tagged


Transmit Frame Type

Bridge

1,2 1Tagged Tagged

1

VLAN 1: Transmit Frame Type = TaggedVLAN 1: Transmit Frame Type = TaggedVLAN 2: Transmit Frame Type = UntaggedVLAN 2: Transmit Frame Type = Untagged

2Untagged Tagged

• Configurable per VLAN per port (Ethernet/ATM PVC)


Ingress Filtering – Disable

Bridge

1,21

2

3

• Configurable per ETH port• Configuration for ATM applies to all PVCs


Ingress Filtering - Enable

Bridge

1,21

2

3

• Configurable per ETH port• Configuration for ATM applies to all PVCs


Layer 2 priority• Layer 2 priority support according 802.1p standard• Up to 8 different priorities for different services within a single VLAN• Allows translation of ETH priority into ATM priority

3

Bridge

1,2,37

6

4

1

1

1

2

VLAN Priority

VLAN ID

ATM PVCs

1

3

2


Priorities per Logical Interface

ACE-202/2002/2002E:• CBR - Highest priority• VBR RT- Second highest priority• Per-VC queue according to peak limit and weight• UBR - lowest priority

ACE-52/201/3100/3200/3400/3402:• CBR - Highest priority• VBR - Second highest priority• UBR+ - Third priority• UBR - lowest priority


VP Tunneling• Enables grouping of VCCs from different user interfaces (ATM,

LAN, CES, FR and management) into a single VPC (VP tunnel)• Category of service and traffic parameters configured

individually for each VP tunnel (up to 30 VP tunnels)

ACE-202

ACE-2002

ACE-2002E

LANSwitch

ACE

PBX

LAN

CES

First the VCs are Policed/Spaced according to their Traffic Descriptors

Then the entire VP is limited according to the VP Tunnel Traffic Descriptor


Hierarchical Traffic Management• ACE-202/2002/2002E has three levels of traffic management

• VC Shared Queue and Per VC WFQ (Weight Fair Queue)• VP Tunnel with shaping/limiting all passing through VCCs• Physical interface (module) Rate Pacing

VP Tunnel

Port Pacing

Shared Queue orPer VC WFQ

ACE-202

ACE-2002

ACE-2002E


n x E1 IMA

E1s TDM

Hierarchical Traffic Management• ACE-52/201/3x00 has two levels of traffic management

• VC Shaping- Shaping is supported for All VCCs• Rate Pacing- Output rate limit

ACE-52

ACE-3100

ACE-201

ACE-3200

ACE-3400

Output rate limit in cells/sec

Shaping per VCC according the Traffic

Descriptor

STM-1

ACE


Spacing• Buffering according to the PCR - output will not exceed PCR• Non-conforming cells are buffered and not discarded• Supported in ACE-202/ACE-2002/ACE-2002E• EPD support

ACE-202

ACE-2002

ACE-2002E

Input Traffic Output TrafficCell rate (cps)

PCR = Peak Cell Rate

TD parametersPCR=6000 cps

EPD = Early Packet Discard


Shaping• Built-in Shaper for all traffic classes on the ACE-52, ACE-201, ACE-3x00• Optional H/W Shaper for VBR-rt and VBR-nrt on the ACE-2002• EPD support

Input Traffic Output Traffic

TD parametersPCR=2000 cpsSCR=1000 cpsMBS=500 cells

Cell rate (cps)

PCR= Peak Cell Rate SCR= Sustainable Cell Rate MBS=Max Burst SizeTD=Traffic Descriptor


Automatic Protection System (APS)

• STM-1 only• ACE-202/2002/2002E

• G.783 Annex A and B• Uni-Directional• 1:N Compatible• 1+1 Optimized• Y-Cable (proprietary)• Manual switching• New Dual APS module

• ACE-3xxx• G.841(the new G.783) Annex B• 1+1 Optimized • APS for CH-STM-1

ACE-202

ACE-2002

ACE-2002E

New

ACE-3400

ACE-3402


Inverse Multiplexing over ATM (IMA)

• Standard IMA for scalable N x E1/T1 ATM connections• Complies with ATM Forum IMA Version 1.0 and 1.1• Supports ITC and CTC clocking mode, Independent Transmit Clock for

connectivity to two or more networks which are not synchronized and Common Transmit Clock for connecting to a single synchronized network

IMA virtual link

Phy

Phy

Phy

Phy

Physical link # 0

Physical link # 1

Physical link # n-1

Physical link # n

IMA Group Phy

Phy

Phy

Phy

Original cell stream passed to ATM side

IMA GroupSingle ATM cell

stream from ATM side

SDH/PDHNetwork


Management OptionsManagement Applications:• All ACEs can be managed locally and remotely• RADview HPOV – ACE-202/2002/2002E

Full configuration and diagnostic via any IP based connection (in-band or out-of-band) using a Unix based GUI.(ACE-202/2002/2002E)

• RADview EMS –ACE-52/201/3100/3200/3400/3402Full configuration and diagnostic via any IP based connection (in-band or out-of-band) using a GUI. Server-client CORBA based topology – may run on a PC or UNIX stations

• ConfiguRAD – ACE-3100/3200/3400/3402Web based element management (HTTP server). The implementation will allow full configuration and diagnostic via any IP based connection


Management Options

Download/Upload• Software, configuration, statistics or any other file

from the file system• Two ways for downloading & uploading files

• X-Modem – via a serial interface• TFTP – via In-Band or Out-Of-Band management


Alcatel Management System

• Integrating RAD SNMP using dedicated Descriptors

Descriptor Files

5620 DM 5620 NM

Alcatel BackboneNetwork

Managed AccessNetwork


5620 Descriptor Modules

• Part of the 5620 Descriptor Modules• Identify and map third-party SNMP objects for the 5620• Dedicated descriptor per product

• 5620 maintains multiple descriptors

5620 DM

ACE-202

ACE-202

ACE-50ACE-50

SNMP Based ManagedAccess Network

Descriptor Files


RAD’s ACE Broadband Successes

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