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How CX2600 and CX2200 (CX2K) work
How CX2600 and CX2200 (CX2K) work
April 20-24, 2009NEC Corporation
NEC Confidential
Agenda
OverviewFunctionalities
OptimizationData OffloadingQoS FunctionPseudo Wire EmulationSynchronization over a Packet Switched NetworkEthernet OAM
ApplicationConclusion
NEC Confidential
CX2K Overview
NEC Confidential
Aggregates traffic from fixed and mobile technologies: 2G (TDM), 3G (ATM), 3.5G (IP), Wimax (IP) and future (LTE).
Transports Legacy and IP traffic through PDH/SDH, ATM or IP networks.
Unifies TDM and ATM traffic into an IP network (using PWE feature).
High bandwidth capacity with QoS management according to each service requirement.
Complete set of interfaces: Ethernet 10/100M/1G, ATM, SDSL, SDH and TDM.
Data and data traffic separation and transport through IP and TDM networks
CX2600 seriesCX2600 series
TDM NWPDH
ATM
SDH
ATM
SDH
ATM
RNC
BSC
3G
2GBTS
Node B
CX2KCX2KEthernet NW
Core NW
IP/ Ether
IP/ Ether
IP/ Ether
Node B
3.5GCX2KCX2K
NEXT GENERATION BACKHAUL AGGREGATOR
Integrated Packet switch and TDM cross-connect.
Highly flexible and accurate synchronization features
Full featured VLAN , IPv6 QoS support and bandwidth guarantee among different traffic and customers
CX2200CX2200(compact box)(compact box)
CX2200 / CX2600 Overview
NEC Confidential
Mobile Backhaul cost-effective solution by using CX2K
2G/2.5G Backhaul based on TDMConcern- add equipment for E1 line increasing- increase leased line
2G/2.5G Backhaul based on TDM2G/2.5G Backhaul based on TDMConcern- add equipment for E1 line increasing- increase leased line
3G/3.5G Backhaul based on ATMConcern- add equipment for E1 line increasing- increase leased line- correspond data traffic increasing
3G/3.5G Backhaul based on ATM3G/3.5G Backhaul based on ATMConcern- add equipment for E1 line increasing- increase leased line- correspond data traffic increasing
ALL IP BackhaulConcern- deal at same time with different
technology- replace equipment
ALL IP BackhaulALL IP BackhaulConcern- deal at same time with different
technology- replace equipment
Traffic Aggregation
How is cost saving realized using CX2K?How is cost saving realized using CX2K?
Traffic Aggregation and separation with off-load
Single platform for backhaul evolution(CX supports various interface, Hybrid switch, PWE etc)
NEC Confidential
CX2K Functionalities
1. How is Optimization being done?
NEC Confidential
Multiplexing & Aggregation Schemes for TDM
CX2600,CX2200
CX2600
E1
E1
E1TDM
64K TSW
E1
E1
XC for each 64k Timeslots
XC for each 64k Timeslots
E1
E1
STM1(ch)TDM
64K TSW
E1
E1
STM1
XC for each 64k Timeslots
XC for each 64k Timeslots
E1
Fifteen Time Slots(15 x 64kbps)
Fifteen Time Slots(15 x 64kbps)
Thirty Time Slots(30 x 64kbps)
Full Time Slots(30 x 64kbps)
Full Time Slots(30 x 64kbps)
Two VC-12 in STM-1(2 x 2Mbps)
BTS
BTS
BTS
BTS
Several E1s are multiplexed and mapped on VC12s into a STM-1 interface.
Several E1s (partially occupied) are multiplexed to one or more E1s interfaces.
CX2K reduce the number of E1 lines through a TDM aggregation CX2K reduce the number of E1 lines through a TDM aggregation based on an integrated 64K crossbased on an integrated 64K cross--connect according to occupied connect according to occupied ratio.ratio.
NEC Confidential
Multiplexing & Aggregation Schemes for ATM
CX2600,CX2200
ATM
E1(IMA)GbE
PWE
E1(IMA)
E1(IMA) ATMoE
ATMoE
ATME1(IMA) ATMoE
VLAN
ATM
GbE
PWE
EtherSW
VPI/VCI is mapped to VLAN internally
VPI/VCI is mapped to VLAN internally
Several ATM E1s are multiplexed into one or more ATM E1s with detection of idle (null) cells.
ATM
GbE
PWE
ATM
E1(IMA)
CX2600,CX2200
ATM
E1(IMA)GbE
PWE
STM-1
E1(IMA) ATMoE
ATMoE
ATME1(IMA) ATMoE
VLAN
ATM
GbE
PWE
EtherSW
STM1
VPI/VCI is mapped to VLAN internally
VPI/VCI is mapped to VLAN internally
ATM
GbE
PWE
ATM
STM-1
Null cellNode-B
Node-B
Node-B
Node-B
As the encapsulated header is only used internally, EtherSW performs switching with no additional output overhead.
Several ATM E1s are multiplexed into one STM-1 with detection of idle (null) cells.
CX2K reduce the amount of E1 CX2K reduce the amount of E1 IMAsIMAs (3G traffic) through an ATM (3G traffic) through an ATM aggregation based on a full featured hybrid switch according to aggregation based on a full featured hybrid switch according to occupied ratio.occupied ratio.
NEC Confidential
Multiplexing & Aggregation Schemes for IP backhaul
CX2K
TDMoP and ATMoP functionalities encapsulates TDM and ATM traffic, respectively.
All Traffic is mapped into VLANs according to bandwidth and QoS requirements.
GbEEther
FE/GbEPolicer
ATME1(IMA) ATMoP
ATME1(IMA) ATMoP
TDSW
VLAN
GbE
E1 CESoPTDM
E1 CESoPTDM
FE/GbE
Guaranteedbandwidthfor TDM
1:1 Protection (EtherPS)
Allocated bandwidthFor ATM and Ether is configurable
Ethernet Switch
HSDPA
WIMAX
BTS
Node-B
2G, 3G/3.5G traffic are transported through PWE (Pseudo Wire 2G, 3G/3.5G traffic are transported through PWE (Pseudo Wire Emulation) with guaranteed bandwidth.Emulation) with guaranteed bandwidth.CX2K can provide CX2K can provide QoSQoS according to each service requirement.according to each service requirement.
NEC Confidential
Application for the existing PDH/SDH network
RNC/BSC
Existing PDH networkBTS/Node-B
CX2200CX2200 CX2600CX2600
Wimax
E1 x 1 8(Channel Bonding)
RNC/BSC
BTS/Node-B
CX2200CX2200 CX2600CX2600Wimax
STM-1
E1
E1
Ether
E1
E1
Ether
2G, 3G/3.5G traffic and Broadband data (2G, 3G/3.5G traffic and Broadband data (WimaxWimax etc) can be sent to etc) can be sent to existing PDH/SDH network.existing PDH/SDH network.CX2K can deliver expanding service and service offerings for fasCX2K can deliver expanding service and service offerings for fast t return on investment by using existing PDH/SDH network.return on investment by using existing PDH/SDH network.
Existing SDH network
NEC Confidential
2G(BTS)
Ether Node
3G(NodeB)
Ether
E1(TDM)
E1(ATM)
Ethernet
EoSDHE1(TDM)
E1(ATM)
FE/GbE
Packet SW
TDMSW
TDMoP
ATMoPGFP
CX2200/CX2600
STM-1
CX2Ks Ethernet over SDH feature
Ether
E1(TDM)
E1(ATM)
Ethernet
EoSDH E1(TDM)
E1(ATM)
FE/GbE
Packet SW
TDMSW
TDMoP
ATMoPGFP
CX2200/CX2600
2G(BSC)
3G(RNC)Ether
EthernetEthernet
EthernetEthernet STMSTM--11E1(TDM/ATM)E1(TDM/ATM)E1(TDM/ATM)
Ethernet EthernetEthernet
EthernetEthernet E1(TDM/ATM)E1(TDM/ATM)
TDM: SAToP/CESoPSNATM: ATMoPTDM: SAToP/CESoPSNATM: ATMoP TDM: SAToP/CESoPSN
ATM: ATMoPTDM: SAToP/CESoPSNATM: ATMoP
GFP mapping GFP mapping
GFP mapping GFP mapping
Ether
STMSTM--11
Ether Ether
GFP mapping GFP mapping
GFP mapping GFP mapping
Enable to transport Ethernet frames onto SDH network by Ethernet over SDH (GFP mapping).TDM/ATM frames also can be transmitted to SDH network with Ethernet frames by Ethernet conversion (CES). 2 STM-1 ports are available for transporting Ethernet frames onto SDH interfaces. Ethernet over SDH module supports 1+1 STM-1 APS function for enhanced reliability.
* CX2600 : end of Dec, 2008CX2200 : end of Sep, 2008
NEC Confidential
2G(BTS)
Ether Node
3G(NodeB)
Ether
E1(TDM)
E1(ATM)
Ethernet
EoPDHE1(TDM)
E1(ATM)
FE/GbE
Packet SW
TDMSW
TDMoP
ATMoPGFP
CX2200/CX2600
E1 x 1~8
CX2Ks Ethernet over PDH feature
Ether
E1(TDM)
E1(ATM)
Ethernet
EoSDH E1(TDM)
E1(ATM)
FE/GbE
Packet SW
TDMSW
TDMoP
ATMoPGFP
CX2200/CX2600
2G(BSC)
3G(RNC)Ether
EthernetEthernet
EthernetEthernet E1 x 1~8E1 x 1~8E1(TDM/ATM)E1(TDM/ATM)E1(TDM/ATM)
Ethernet EthernetEthernet
EthernetEthernet E1(TDM/ATM)E1(TDM/ATM)
TDM: SAToP/CESoPSNATM: ATMoPTDM: SAToP/CESoPSNATM: ATMoP TDM: SAToP/CESoPSN
ATM: ATMoPTDM: SAToP/CESoPSNATM: ATMoP
GFP mapping GFP mapping
GFP mapping GFP mapping
Ether
E1 x 1~8E1 x 1~8
Ether Ether
GFP mapping GFP mapping
GFP mapping GFP mapping
Enable to transport Ethernet frames onto PDH network by Ethernet over PDH (GFP mapping).Channel bonding is supported as well.TDM/ATM frames also can be transmitted to PDH network with Ethernet frames by Ethernet conversion (CES).
* CX2600 : 1st half of 2009CX2200 : the end of Dec, 2008
NEC Confidential
2. How is Data Offloading being done?
NEC Confidential
Data Offloading can be realized through the CX2Ks Hybrid Switch Capability
CX2K Multi-service switching Diagram
E1 Leased Line
SDH / ATM Network
Packet Network
BSC
RNC
E1/STM-1
E1(IMA)/STM-1
FE/GbE
E1(TDM)/E1(IMA)/STM-1
FE/GbE
TrafficSeparation:
CellMUX
TDM SW (64kbps)
Packet SW
CX2600/CX2200
EoS
CESoPSN/SAToP
CESoPSN/SAToP
ATMoPCellMUX ATMoP
Ethernet over SDH will be available end of Sept. 2008
NEC Confidential
E1(ATM)
Traffic Separation
E1(TDM) E1(TDM)TDM SW
Packet SW
CX2200
Classification and separation of the traffic based on service requirement can be realized on CX2200.
Classification and separation of the traffic based on service requirement can be realized on CX2200.
2G(BTS)
3G(Node-B)
E1(ATM)
FE/GbE
Packet Network
Data traffic(Best effort)
Voice(Critical traffic)
PDHSTF
P
-
S
W
MEM
RadioFrameMUX
Direct Mappingto Radio Frame
E1E1E1
ETH
ETH
PASOLINK NEO
PASOLINK & CX2200 solution Off-load of data traffic can be realized on CX2200 when expanding
broadband access service Expanding capacity with same frequency band can be realized Maintain service quality of legacy service
Expand capacity with same frequency band Expand capacity with same frequency band
NEC Confidential
3G and 3.5G voice traffic can directly be sent through a TDM/ATM network (real time services)
3G and 3.5G data traffic can be sent through an IP Network (non real time services)
Intelligent QoS switch allows gradual migration of Voice and Data traffic to a pure IP network.
GbEEthernet Switch
GbEEther
FE/GbEPolicer
ATME1(IMA) ATMoP
ATMoPATM
E1(IMA) ATMoPVLAN
ATME1(IMA) ATMoP
STM1
Traffic separation between Voice and Data based on VPI/VCI
Packet Switch with ATMoP function.HSDPA
WIMAX
CX2K
Classification and Separation Schemes
Node-B
Voice can be sent to TDM/ATM network and data traffic from 3G anVoice can be sent to TDM/ATM network and data traffic from 3G and d 3.5G can be sent directly to an IP/Ethernet network considering 3.5G can be sent directly to an IP/Ethernet network considering each each QoSQoS service requirement.service requirement.
NEC Confidential
3. QoS Function
NEC Confidential
User A: 100Mbpsassigned basedon the ratio of input traffic rate.
QoS Function
Bandwidth control based on Best Effort, output traffic rate of each flowis assigned based on the ratio of input traffic rate.
User B: 50Mbps
Physical port BW=100Mbps
User A: 67Mbps
User B: 33Mbps
Best Effortequipment
Traffic of heavy users (ex: P2P users) can occupy bandwidth of the physical port-> unfare condition occurs between each users!
What is Best Effort?
NEC Confidential
CIR: 20MbpsBE: 50Mbps
CIR: 10MbpsBE: 80Mbps
100Mbps CIR: 20MbpsBE: 46Mbps
CIR: 10MbpsBE: 23Mbps
Minimum guarantee rateOperator A: 20MbpsOperator B: 10Mbps
100M
Incoming BW200M
Time
CIR2BE1
CIR1
BE2100M
Time
CIR2BE1
CIR1
UBR2Outgoing BW
BE2
In case of the congestion,traffic is properly allocated based on the minimum guarantee rate.
MinimumGuarantee
MaximumLimitation
Fair RateControl
CX2K performs advanced bandwidth control based on traffic flow .Minimum and fair extra bandwidth can be assigned according to service and customers requirements ideal for site sharing & BW reuse
Fare Rate sharing and Bandwidth control
NEC Confidential
QoS Mechanism (1) Overview
Class Mapping
Ingress Policer
Output Scheduler
Switch Fabric
Class Mapping
Egress Policer
Token Bucket
No.of VLANsIPv4 ToS/DSCP IPv6 TC/DSCPVLAN PRI Ethertype
MACVLAN
EthertypeIPv4/v6
MACVLAN
EthertypeIPv4/v6
Pri A
Ingress Processing
VLAN1Pri B Pri C Pri D
Th ATh BTh C
Th D
VLANn Others
Per-flow Rate Monitor
DiscardThreshold
Round Robin
No.of Egress Ports
Switching Egress Processing
Policy Rule
The CX2600 is designed with NECs original Buffer-less per-flow metering algorism to suppress the jitter and delay ultimately.
Scheduling per VLAN offers Fair Sharing rate to each VLAN.
The CX2600 is designed with NECs original Buffer-less per-flow metering algorism to suppress the jitter and delay ultimately.
Scheduling per VLAN offers Fair Sharing rate to each VLAN.
Classification the priority class and overwrite CoS field
Classification the priority class and overwrite CoS field
Policing per VLAN with RED (Random Early Discard) for each priority class
Policing per VLAN with RED (Random Early Discard) for each priority class
Scheduling per VLAN(Minimum rate guarantee and Fair Sharing for remained bandwidth)
Scheduling per VLAN(Minimum rate guarantee and Fair Sharing for remained bandwidth)
NEC Confidential
QoS Mechanism (2) Class Mapping
Overwriting CoS values and determining the internal priority classes based on the policy rule per VLANs
Class Mapping
Ingress Policer
Output Scheduler
Switch Fabric
Class Mapping
Egress Policer
Ingress Processing Switching Egress Processing
ClassMapping
IPv4 ToS/DSCP IPv6 TC/DSCPVLAN PRI Ethertype
MACVLAN
EthertypeIPv4/v6
MACVLAN
EthertypeIPv4/v6
Policy Rule
Ingress Egress
IPv4 ToS/DSCP IPv6 TC/DSCPVLAN PRI Ethertype
MACVLAN
EthertypeIPv4/v6
MACVLAN
EthertypeIPv4/v6
Policy Rule
NEC Confidential
QoS Mechanism (3) Policer
Ingress
All parameters are configurable per VLANsVLAN CoS are mapped to 4 classes internallyMaximum bandwidth and burst length are configurable for each 4 classDrop Mechanism is selectable
Egress
The same configuration as Ingress
Class Mapping
Ingress Policer
Output Scheduler
Switch Fabric
Class Mapping
Egress Policer
Ingress Processing Switching Egress Processing
Policer
Token Bucket
No. of VLANs
Pri A Pri B Pri C Pri D
NEC Confidential
4. Pseudo Wire Emulation Function
NEC Confidential
E1(ATM)
E1(TDM)
Pseudo Wire Emulation
2G(BTS)
3G(Node-B)FE/GbE
E1TDM
E1ATM
SAToP/CESoPSN
ATMoP
CX2200
FE
Wimax
FE/GbEPDHSTF
P
-
S
W
MEM
RadioFrameMUX
Direct Mappingto Radio Frame
E1E1E1
ETH
ETH
PASOLINK NEO
Shaper w/ bufferClassifier
M A C
V L A N
Ethertype
IPv4/v6
M A C
V L A N
Ethertype
IPv4/v6
Shaping Rate
PASOLINK & CX2200 solution The legacy service (2G/3G) and next generation service are integrated on Ethernet Best effort services are integrated on CX2200
Service bandwidth can be optimized (QoS)
The transport of TDM/ATM service through the packet network can be realized on CX2200. The transport of TDM/ATM service through the packet network can be realized on CX2200.
UBR2(3G best effort)
UBR1(Wimax best effort)
CBR(Realtime service)
NEC Confidential
Packet Header
T1 Payload
CESoP
Ch24Ch24 Ch2Ch2 Ch1Ch1 FF Ch24Ch24 Ch1Ch1 FF Ch24Ch24 Ch2Ch2 Ch1Ch1 FF Header Header
Header Header FFCh1Ch1Ch2Ch2Ch24Ch24
Ch24Ch24 Ch1Ch1 FF Ch24Ch24 Ch2Ch2 Ch1Ch1 FF
Packet Switching Network
CES
Ch24Ch24 Ch2Ch2 Ch1Ch1 FF Ch24Ch24 Ch1Ch1 FF Ch24Ch24 Ch2Ch2 Ch1Ch1 FF Header Header
Header Header FFCh1Ch1Ch2Ch2Ch24Ch24
Ch24Ch24 Ch1Ch1 FF Ch24Ch24 Ch2Ch2 Ch1Ch1 FF
TDM Network
CES (SAToP / CESoPSN)
Ch24Ch24 Ch2Ch2 Ch1Ch1 FF
Header Header FFCh1Ch1Ch2Ch2Ch24Ch24
Ch24Ch24 Ch2Ch2 Ch24Ch24 Ch2Ch2
Header Header
Ch24Ch24 Ch2Ch2 Ch1Ch1 Ch24Ch24 Ch2Ch2 Ch1Ch1
CESoP
Ch24Ch24 Ch2Ch2 Ch1Ch1 FF
Header Header FFCh1Ch1Ch2Ch2Ch24Ch24
Ch24Ch24 Ch2Ch2 Ch24Ch24 Ch2Ch2
Header Header
Ch24Ch24 Ch2Ch2 Ch1Ch1 Ch24Ch24 Ch2Ch2 Ch1Ch1
CES
T1 Payload Packet Header
Packet Switching NetworkTDM Network
SAToP (RFC4553 )- Structure-Agnostic Time Division Multiplexing (TDM)over Packet (SAToP)
- Unstructured Frame Level Packetizing
draft-ietf-pwe3-cesopsn- Structure-aware TDM Circuit Emulation Service over Packet Switched Network (CESoPSN)
- structured NxDS0 Level Packetizing (Packet Level TDM Cross Connect)
NEC Confidential
5. Synchronization over Packet Switched Network
NEC Confidential
Synchronization over Packet Switched Network
Slipping Synchronization in wide area mobile backhaulSync. Performance must meet 50 ppb of 3GPP specification even under various jitter conditions for 2G/3G services.
RNC
BTS
Node-B/ BTS
PRC
E1 PDH TDM Backhaul(Sync Network)
Clock Distribution
RNC
BTS
Node-B/ BTS
PRC
E1 PDH Packet Backhaul(Async Network)
NEC Confidential
Clock & Data (recovered from
PWE/RTP packet)
Clock/Timing Recovery(1)The following synchronization methods are supported on the CX2600 series.
Data
BackhaulBackhaul
Clock & Data
T1/ STM-1 CX2600/220CX2600/220
E1 Clock and Data
Clock (within RTP Header)
T1/E1 Data (PWE/CES)
CESoP
CX2600/220FE / GbE
CESoP
Timing Recovery with Legacy TDM clock recovery from line TDM data (Legacy Clock synchronization technique)
Timing Recovery with RTP(PWE/CES)Clock and data use the same packet connectionRTP(Real-time Transport Protocol IETF RFC3551): using sequence number and timestamp information, RTP offers framework that packet receiver can recover clock and timing of the source.
BackhaulBackhaul
NEC Confidential
Clock Synchronization
CX2K offers several types of CX2K offers several types of Clock synchronization functionClock synchronization function
PRC Clock
Adaptive Clock (RTP,IEEE1588v2)
End-to-End solution
Edge-to-Edge (Link-level) solution
Pseudo Wire Emulation
(Async)Sync Ethernet Sync Ethernet
PRC Clock
PRC: Primary Reference Clock
PRC
RNC
Node-B Packet Ring
STM-1E1
ETH (over SDH)ETH
ETH
Hotspot
Node-B
CX2200
CX2600
SAToP / CESoPSN sequence number based suitable for TDMoPIEEE1588v2 (Standard Precision Time Protocol) suitable for ATMoPITU-T G.8261 Synchronous Ethernet > suitable for both TMDoP and ATMoPClock recovery from PDH physical port > considering E1
NEC provides 3GPP defined clock quality with CX2K throughout the network with Adaptive Clock.
Slipping Synchronization in wide area mobile backhaulSync. Performance must meet 50 ppb of 3GPP specification even under various jitter conditions for 2G/3G services
NEC Confidential
6. Ethernet OAM
NEC Confidential
Ethernet OAM
Fault ManagementCC (Continuity Check)LB (Loop Back) It corresponds to ping in IP.LT (Link Trace)
It corresponds to trace route in IP.
Performance MonitoringLM (Frame Loss Management)DM (Frame Delay Management)
To maintain the service availability and quality for the packet network, powerful OAM toolset is required. To maintain the service availability and quality for the packet network, powerful OAM toolset is required.
CX2K provide Fault management and Performance monitoring by Ethernet OAM (ITU-T Y.1731 and IEEE 802.1ag).
BTS/Node-B BSC/RNCOperator A Operator B
Provider X
CC
LB
LT
NEC Confidential
CX2K Application
NEC Confidential
A typical transmission network image
Access Network
Regional Backhaul
Core / Backbone Network
BTS/Node-B
RNC/BSCBTS/Node-B
MSC
GMSC
SGSN
GGSN
MobileBackhaul
BTS/Node-B
RNC / BSC
MSC/GMSCConsidering Globes network, CX2K will give more
value within the MW radio network
NEC Confidential
Packet Radio Solution (CX2200 + Pasolink)
MW Ethernet Radio
Pasolink
CX2200
1U
1U
IDUIDU
NEC Confidential
Difference between w/o CX2200 and w/CX2200Pasolink + CX2200
IDUIDU
Pasolink with FE
IDUFE
IDUFE
zz QoSQoS (SLA)(SLA)
zz OAM (OPEX)OAM (OPEX)
zz ReliabilityReliability
The priority traffic control is managed by 4 level priority class.
The priority traffic control is managed by 4 level priority class.
Maintainability and administration and performance monitoring on Radio is provided.
Maintainability and administration and performance monitoring on Radio is provided.
High reliability and bundling on Radio links is provided. ( 1+1 redundancy )
High reliability and bundling on Radio links is provided.( 1+1 redundancy )
As for low priority traffic (ex. Data), minimum bandwidth is guaranteed by minimum guarantee and maximum limitation per class.
As for low priority traffic (ex. Data), minimum bandwidth is guaranteed by minimum guarantee and maximum limitation per class.
SDH-like maintainability and administration on Ethernet can be provided by Ethernet OAM.
SDH-like maintainability and administration on Ethernet can be provided by Ethernet OAM.
High reliability on Ethernet is provided by various redundant protocols. ( Spanning Tree Protocol, Link Aggregation*, Ethernet APS, Ethernet Ring Protocol )
High reliability on Ethernet is provided by various redundant protocols. ( Spanning Tree Protocol, Link Aggregation*, Ethernet APS, Ethernet Ring Protocol )
Deliveringmore delicate
SLA !
OPEX Improvementon Ethernet !
ReliabilityUp!!
Pasolink Pasolink Pasolink Pasolink
CX2200 CX2200
InInadditionaddition
* Connection of CX and Paso is excluded .
E1
CX2200
PWE
Aggre
MUX
Pasolink
ETHETH
E1
SW
NEC Confidential
MW Radio System Migration Scenario (2G/3G-->2G/3G/HSPA)
PASOLINK PASOLINK
IMAGroup
IMAGroup
E1(IMA) E1(IMA)
E1(TDM)
2G
3G
E1(TDM)
E1(IMA) E1(IMA)
[ 2G/3G ]
[ 2G/3G/HSPA ]
PASOLINK
CX2200
PASOLINK
E1(IMA) E1(IMA)CX2200
E1(TDM)
2G
3G
E1(TDM)
IMAGroup
3G IMAGroup
E1(IMA)
E1(TDM) E1(TDM)
E1(IMA)
NEC Confidential
MW Radio System Migration Scenario (with Offload)
TDM SW PacketS
W
[ 2G/3G/HSPA ]
TrafficSeparation:
Voice (Critical Traffic)
Data(Best Effort)
PASOLINK
CX2200
PASOLINK
E1(IMA)
STM-1(ATM)
CX2200
E1(TDM)
2G
3G
E1(TDM)
IMAGroup
3G
E1(IMA)E1(IMA)
E1(TDM) E1(TDM)
E1(IMA)
Packet Network
E1(TDM) E1(TDM)
E1(IMA) E1(IMA)
FE/GbE
NEC Confidential
Typical Configuration with Pasolink
CX2200CX2200 1U
16xE1/T1 TDM
8xFE
2x GbE
BB Service(GbE x2, FE x6)
E1(IMA) x 12 E1(TDM) x 2E1(IMA) x 12GbE x 2FE x 6
E1(TDM) x 1FE x 2
E1(TDM) x 2
PASOLINK PASOLINK
E1(IMA) x 4CX2200
E1(TDM) x 22G
3G
IMAGroup
3G
FE x 2
E1(TDM) x 1E1(TDM) x 1
FE x 2
3G
E1(IMA) x 4
E1(IMA) x 4
GbE x 2
FE x 6
NEC Confidential
Typical Configuration with Pasolink
CX2200CX2200 1U
16xE1/T1 TDM
8xFE
2x GbE
BB Service(FE x6)
E1(IMA) x 12 E1(TDM) x 2E1(IMA) x 12GbE x 2FE x 6
GE x 2
E1(TDM) x 2
PASOLINK PASOLINK
E1(IMA) x 4CX2200
E1(TDM) x 22G
3G
IMAGroup
3G
GbE x 1 GbE x 1
3G
E1(IMA) x 4
E1(IMA) x 4
FE x 6
NEC Confidential
Conclusion
CX2K is a cost-effective solution for backhauling aggregated 2G/3G/HSDPA/Wimax and Future IP trafficCX2K is future-proof to handle current and future services of GlobeCX2K is the best Mobile Backhaul Solution as it provides All-in-One support
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Reference Information
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CX2200 is a flexible and compact gateway that consolidates 2G (TDM), 3G (ATM), 3.5G (IP), Wimax (IP), DSL (IP), WiFi (IP) and others traffic, into any kind of network.
Pseudo Wire Emulation supportSAToP (RFC4553)CESoPSN (draft-ietf-pwe3-cesopsn)ATM over Packet (RFC4717)Clock Synchronization (RTP, IEEE1588v2 PTP)
Hybrid SwitchingEthernet SwitchingDS0 Level TDM Cross Connect
Ethernet OAM & ProtectionOAM (Y.1731/802.1ag)Linear Protection (G.8031)Ring Protection (G.8032)
QoS functionPacket Policer / ShaperATM Shaper
MPLS functionLDP / RSVP-TE / OSPF-TE (roadmap)
Integrated8 x FE
Downlink Card16 x T1/E1 (TDM / ATM IMA)16 x T1/E1 (TDM)8 x T1/E1 (TDM)1 x STM-1 (ATM)
Uplink Card2 x GbE (2 ports)4 x SHDSL8 x T1/E1 (ETH over PDH)2 x STM-1 (ETH over SDH)
NEXT GENERATION BACKHAUL AGGREGATOR
CX2200 overview
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440mm
44mm
2 DC Power Connector
Power Switch
RS-232CLocal Craft Interface
Management ETH Interface
240mm
Down-Link Card
16xE1/T1 TDM/ATM
8xE1/T1 TDM
16xE1/T1 TDM
1x STM-1 ATM
2x GbE
8x E1/T1 ETHoPDH
4x SHDSL
2x STM-1 ETHoSDH
Up-Link Card
CPU-Packet Switch Card with8x FE
Basic
Enhanced (MPLSSupport)
Fan module
CX2200 shelf and interfaces
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CX2600 series is a scalable and high performance aggregation solution focused on medium and high traffic sites. CX2600 series manages dense and complex multi- technology network interconnection through a complete set of interfaces.
CX2600 series overview
CX2600220
CX2600210
CX2600202
Interfaces Lines Maximum # of Line Inetrfaces
10/100BASE-TX (8p) 4 4 2
100BASE-FX (8p) 4 4 2
1000BASET/X (1p) 12 6 2
1000BASE-PX (1p) 12 6 2
1000BASE-T (8p) 12 6 2
1000BASE-X (8p) 12 6 2
TDM T1/E1 (8p) 12 6 2
TDM STM-1 (1p) 12 6 2
ATM T1/E1 (8p) 12 6 2
ATM STM-1/OC-3c (1p) 12 6 2
CX2600/220
CX2600/210
CX2600/202
Advanced Traffic AggregationPacket-based QoS with full bandwidth control (maximum rate limitation, minimum rate guarantee and fair bandwidth sharing, based on the per-flow metering)ATM aggregation (internal packet mechanism)IP, ATM and PDH traffic aggregation
Hybrid Packet/TDM Switching24Gbps Packet switching (25kbps granularity) and 2Gbps TDM cross-connect (64kbps granularity) fully integrated into a single card.
Pseudo Wire EmulationTDM (SAToP, CEoPSN) and ATM (ATMoP) Emulation over IP/MPLS/EthernetClock Synchronization (RTP, IEEE1588v2 PTP)MPLS signaling (LDP extension)
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Intelligent QoS for EthernetElaborate bandwidth control with per- flow metering (maximum limitation, minimum guarantee and fair sharing for each VLAN and class, broadcast/multicast rate limitation)CoS Mapping and Internal Class MappingEnhanced discard algorithm (UPC- RED) for improving TCP throughput on the overload condition
Advanced VLAN features802.1Q VLAN, 802.1ad(Extended VLAN) and VLAN-tag swapping Port isolation within VLANJumbo Frame for VLAN-tag stacking
Supporting IPv6Classification and CoS mapping based on IPv6 Traffic Class headerMulticasting with MLD snooping
High Availability and ManageabilityHitless switchover for common functional modules (CPU/Switch card and Power Supply)GbE 1:1 Protection, 802.3ad LAG and STM-1 1:1 APS for the link/trail protection802.1D/w Spanning Tree Protocol for the network restorationOAM Fault Management for Ethernet and ATM/SDHPer-flow Traffic Metering (SNMP Private MIB)VLAN Reachability and Loop Detection
Fault ManagementCC (Continuity Check)LB (Loop Back)LT (Link Trace)
Performance MonitoringDM (Delay and jitter Management)
CX2600 series overview
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TDM function
DS0 Level Native TDM Cross Connect (multiplexing)
E1/T1TDM
E1/T1TDM
E1/T1TDM
idle timeslot exclusion
E1/T1TDM
E1/T1TDM TDM -> CES
CES (SAToP / CESoPSN)
SAToP/CESoPSN
T1/E1
ETH
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E1 / T1 mode and impedance (75/100/120 ohm) Per module basis mode configuration
Framing mode can be specified per port basis- E1 Framing: basic G.704, CRC-4 multiframe, CRC-4 multiframe without CAS,
unstructured- T1 Framing: SF(D4), ESF
TDM / ATM mode Per port basis mode configuration
ex) Port 1-3,10: TDM mode Port 4-9, 11-16: ATM mode
E1/T1 Port Specification
CX2200/100 offers a flexible E1/T1 ports configuration
TDM port
TDM Cross connect modeCES mode (per module basis
configuration)- SAToP- CESoPSN
ATM port
IMA / non-IMAUp to 8 IMA groups per equipment
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ATM function
ATM 2 ATM (ATM Aggregation)
E1/T1ATM
E1/T1ATM
E1/T1ATM
ATM Aggregation
E1/T1TDM
E1/T1TDM ATM -> ATM over
Packet
ATM over Packet
E: Ethernet (MAC Header)PT: Packet Transport
- VLAN- UDP/IP- MPLS
PW: Pseudo Wire Control Word
ETH
PWATM EPT
STM-1
Up to 256 PVC Both VP connection and VC connection are supported
STM-1
or
STM-1
or
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Ethernet / VLAN function
Up to 256 VLAN (1-4094 VID) Port based VLAN, Tag based VLAN, IEEE 802.1ad (Provider
Bridges) IPv4 ToS/ IPv6 Traffic Class -> VLAN CoS mapping MAC Leaning: up to 16K, VLAN ID plus MAC SA based
LearningLayer 2 Switching
ETHVLAN
ETHVLAN
ETHVLAN
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Memo
How CX2600 and CX2200 (CX2K) workAgendaCX2K OverviewCX2200 / CX2600 OverviewMobile Backhaul cost-effective solution by using CX2KCX2K Functionalities 1. How is Optimization being done?Multiplexing & Aggregation Schemes for TDMMultiplexing & Aggregation Schemes for ATMMultiplexing & Aggregation Schemes for IP backhaulApplication for the existing PDH/SDH networkCX2Ks Ethernet over SDH featureCX2Ks Ethernet over PDH feature2. How is Data Offloading being done?CX2K Multi-service switching DiagramTraffic SeparationClassification and Separation Schemes3. QoS Function 18Fare Rate sharing and Bandwidth controlQoS Mechanism (1) OverviewQoS Mechanism (2) Class MappingQoS Mechanism (3) Policer4. Pseudo Wire Emulation FunctionPseudo Wire Emulation 255. Synchronization over Packet Switched Network 27 28Clock Synchronization6. Ethernet OAMEthernet OAMCX2K ApplicationA typical transmission network image 34 35 36 37 38 39ConclusionReference InformationCX2200 overviewCX2200 shelf and interfacesCX2600 series overviewCX2600 series overview 46 47 48 49 50Memo