Flexipacket Microwave - Network Solutions 204x3a
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FlexiPacket Microwave Network Solutions Maria Maruccia BCS – Wireless Connectivity Solutions Global Solution Sales MWR MWR Experts enabling workshop Cassina de’ Pecchi, 15th October 2009
For internal use 1 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Purpose TDM traffic • All services have the same QoS • Guaranteed bandwidth • Circuits (one E1 -> one i/f -> reserved capacity) • Provisioning is inherent in equipment commissioning (Cabling and cross connection) • NE performance monitoring: all traffic in an E1 i/f has the same performance.
Packet traffic • QoS differentiation • Overbooking • Packets (many Services in one i/f
sharing same capacity) • Equipment commissioning + Service Configuration, SLA, QoS differentiation • Service oriented and E2E Performance monitoring
Network centric
Equipment - centric Equipment-centric Network design • Network = plain sum of MWR link For internal use 2 © Nokia Siemens Networks
End to End Network design • Network = equipment + QoS, synch, VLAN, addressing, OAM…
MWR Experts enabling workshop 12th-16th October 2009
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 3 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 4 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
MWR access in MBH BTS site
Access
Aggregation
Core Controller site
BTS site
FlexiPacket Microwave main focus MWR Access with FlexiPacket • Provides connectivity from BTS site to aggregation • Aggregation can be CET, ng-SDH, L2 or L3 • Traffic: Hybrid or packet 3G + 2G
For internal use 5 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Topology and connectivity Physical topology Hub Site Hub L i nk 14-28 MHz
Tail Site
Logical topology
Fiber optic
Fiber Hub Site Link n i a Ch Hz 14M
Tail Link 7-14MHz Tail Site
Chain Site
Traffic relationships Hub Site
• Topology: tree, chain – Tail, chain, hub sites • Point to point connectivity services • Hub and spoke traffic relationship (all traffic collected towards aggregation) For internal use 6 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Requirements at a glance • Traffic per node – Peak 10-50Mb/s (3G) – Peak 100-300Mb/s LTE – Average throughput can be 5-10 times lower – Statistical multiplexing (with proper QoS)
• Interfaces: – 2G BTS: 1-2 E1 – 3G BTS: ▪ Hybrid: 2-4 E1 + Electrical/Optical FE/GbE ▪ Packet: Electrical/Optical FE/GbE
• Delay – Recommended (Abis/IuB)~15-20ms
For internal use 7 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 8 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
Services CES : Circuit Emulation Service 3G
•E1 over Ethernet via Pseudo Wire Emulation
Tail Site 3G
•Higher priority in the network
2G 3G
UNI
UNI
MW Hub Site
E-Line
Tail Site 2G+3G
•Point to point service for Ethernet traffic
2G
•Configurable Committed and Peak data Rate
3G
•Basic entity for traffic provisioning and monitoring
3G
2G
Chain Site 2G+3G
Packet i/f TDM i/f
For internal use 9 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
E-Line Performance monitoring: • End to End • per service
UNI
NNI
NNI
NNI
At UNI: • Mapping of traffic to the Service – Based on Port, VLAN, Eth.Type; priority (DS or .1P bits), Source/Destination IP address
• Assignment to a Class of Service • Policing (CIR / PIR) according to SLA • CE-VLAN manipulation (transparent/translation)
For internal use 10 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
NNI
UNI
At NNI: •Traffic of a Service is identified by a VLAN ID
Circuit Emulation Services
2G 3G
NNI
NNI
NNI
NNI
At NNI: •Traffic of a Service is identified by a VLAN ID At network ingress • TDM packetization • CESOP and MEF-8 encapsulation
For internal use 11 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
CES - application Traffic grooming in STM-1 interface 2G
STM-1
E1
BSC
Eth STM-1
transport over packet of 2G and 3G E1
2G
E1
3G
E1
RNC
Packet network
Eth
3G
E1 Eth
Interoperable with CESOP in NSN BSC
BTS site E1
Packet networkFiber section
MW section For internal use 12 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Controller site
CES – Technical details and FAQ 64kb/s Granularity •
ed by CESOP
CESOP stack
Optimized 2G transport
Unfilled E1 (17 time slots) E1
Unfilled E1 (12 time slots)
2xE1
E1
1,8Mb/s
55% capacity saving
E1 e2e Delay Packetization delay
overhead Packet size
For internal use 13 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Depends on : •Links capacity •Packet size •Traffic (impact delay variation)
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 14 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
Quality of Service Quality of Service (QoS) implies the ability of the network to provide better or “special” service to a set of /application. How QoS is done?
Classification Define QoS level by looking up the received packet header
For internal use 15 © Nokia Siemens Networks
Marker Marking QoS level at packet header (802.1p,IP TOS/DS/IPPrec)
Policer Protecting network resources by preventing usage in excess of guaranteed bandwidth (bps)
MWR Experts enabling workshop 12th-16th October 2009
Buffer manager Congestions avoidance mechanisms
Queue Scheduler decide which packet forward first based on its priority
CIR and EIR Bandwidth Profiles BW profiles per EVC • CIR – Committed Information Rate – Frame delivery obligation per SLA • EIR – Excess Information Rate
EI R
EVC1
EVC2 E
CIR
CI
IR
R
– Excess frame delivery allowed – not subject to SLA if available
EIR
CIR
EVC3
2 rate, 3 Color marking Marking typically done at ingress Green – Forwarded frames – CIR conforming traffic Yellow – Discard Eligible frames – Over CIR , within EIR Red – Discarded frames – Exceeds EIR
For internal use 16 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Total UNI BW
Goals of “QoS” and SLA enforcement 1. Delay-sensitive traffic gets through with the minimum delay and frame jitter (= delay variation) 2. The CIR for each service is always delivered according to SLA quality targets 3. Each node gets a fair treatment regarding the EIR 4. Congestion avoidance respects the SLA – –
CIR is guaranteed to the Availability objective of its SLA Fairness among nodes is ensured
For internal use 17.03.2009 17 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Shortcomings of “NOT CET” transport • Lack of UNI concept and (mostly) SLA enforcement mechanisms
– Usually cannot guarantee CIR to any single nor fairness among s – Cannot implement real CAC calculations to ensure service sustainability – Is extremely dangerous to overbook unless all traffic is “EIR” and fairness is not a primary requirement
• Lack of proper L2 OAM – Difficult or impossible to troubleshoot – Difficult or impossible to isolate faults or troublesome spots – No per-service FM/PM
For internal use 18 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
QoS handling in FlexiPacket Microwave QoS is implemented both on FlexiPacket Radio and FlexiPacket Hub. FlexiPacket Hub s five priority queues, each one associated to one of the following Class of Services (CoS) that are EF1 (Expedited Forwarding) EF Control and EF2 AF Control and AF1 (Assured Forwarding) AF2 AF3 and BE At the ingress of an UNI/NNI port traffic is marked/processed using 3 bits (P) that define priority and color Priority Queue CoS
FlexiPacket Hub
Color
P bits value
EF1
4
Green
7
Yellow
--
Green
6
Yellow
--
Green
5
Yellow
4
Green
3
Yellow
2
Green
1
Yellow
0
EF Control
3
EF2 AF Control
2
AF1 AF2
AF3 BE For internal use 19 © Nokia Siemens Networks
1
0
MWR Experts enabling workshop 12th-16th October 2009
QoS handling in FlexiPacket Microwave In order to interwork with FlexiPacket Hub. P bits configuration for management traffic is used and same scheduling combination (default)
CoS
Priority Queue FPR
P bits value
EF1
3
7
EF Control EF2
2
AF Control AF1
2
AF2
1
6 5 4 3 2
AF3 BE
For internal use 20 © Nokia Siemens Networks
0
1 0
MWR Experts enabling workshop 12th-16th October 2009
QoS solution CAC
UNI Ingress Device
UNI Egress Device
Intermediate Device
Traffic NNI
NNI Mapping of traffic into a Class of service
Policing •CIR/EIR •Mark EIR
Shaping
Queuing Scheduling Discarding EIR if congestion (WRED)
Mapping
Classes of Service
•Ethernet Services: Based on – – – – –
VLAN Port Eth.Type priority (DS or .1P bits) Source/Destination IP address
According to FlexiPacket Hub and FlexiPacket Radio rules
•CES is mapped to CES CoS
CAC: Connection ission Control
For internal use 21 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
QoS solution CAC
UNI
UNI
Traffic NNI
NNI Mapping of traffic into a Class of service
Policing •CIR/EIR •Mark EIR
Shaping
CES
SP
Policing
Queuing Scheduling Discarding EIR if congestion (WRED)
Delay Sensitive
Business Critical Best Effort
WRR
Network Contol
WRED threshold for green and yellow packets For internal use 22 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Scheduling and congestion control
Connection ission Control (CAC) What is CAC? • CAC (empowered by Netviewer with path manager) enforces an end-to-end guarantee QoS • A set of actions taken during the connection set-up phase, in order to determine whether the system has enough spare resources for the new connection. • Maintain the required by the new connection SLA without affecting the SLA of already existed connections • End-to-end connection request can only be accepted if sufficient resources are available at each one of the network elements on the way of the connection. • The bandwidth will be managed at any potential congestion point. • CCM (OAM Connectivity Check Messages) packets will be prioritized in the control queues and the bandwidth will be reserved when CAC is calculated
For internal use 24 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
QoS solution Management system (NetViewer with Path manager) • Service view in each link • New service provisioning: – Check of available capacity in each involved network link – Constraint: Sum (CIR) < Capacity
CAC
Link capacity = 50 Service X Service Y Service A Service B Service C
CIR=10 CIR=5 CIR=7 CIR=5 CIR=10
EIR=20 EIR=0 EIR=15 EIR=20 EIR=0
Available = 13
UNI
UNI Ingress Device
Egress Device
Intermediate Device
Traffic NNI
NNI
Connection ission Control (CAC) to guarantee that CIR traffic requirements are met at all times regardless of network congestion
For internal use 25 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 27 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
Synchronization - features • Synchronous interfaces – – – –
TDM i/F Ethernet i/f with Synchronous Ethernet (G.8261/G.8262) Radio i/f Each i/f can be selected as clock source ▪ TDM or Eth i/f in Indoor devices ▪ Radio link or Eth i/f in Radio – A synchronous network infrastructure ▪ Physical layer synchronization in all network links ▪ Used to synchronization for CES
• IEEE1588v2 in FlexiPacket Hub
For internal use 28 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
SyncE
TDM E1
SyncE
Synchronous Ethernet
Synchronization solution w FlexiPacket MW (1/2) Synch. Ethernet Layer 1 synchronization from/to any interface
Nb Eth
SyncE
SyncE
BTS TDM E1
For internal use 29 © Nokia Siemens Networks
Synchronous Ethernet
MWR Experts enabling workshop 12th-16th October 2009
Synchronous Ethernet (ITU-T G.8261)
Synchronization solution w FlexiPacket MW (2/2) PTP (IEEE 1588-2008)
FlexiPacket Microwave ensures proper QoS for timing packets QoS: high priority for timing packets 1588 master
BTS
Packet Timing packets (unicast) RNC site 2M
BTS (w/o 1588-2008)
Third party network
1588-2008 slave
1588-2008 slave in FlexiPacket Hub
For internal use 30 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
RNC
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 31 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
Ethernet OAM Standards UNI
UNI Carrier NW
100FX Media Convrtr
Cust. Eqpmnt.
MEF & ITU Y.1731
Provider Media Edge Convrtr
Media Convrtr
Cust. Eqpmnt.
Service Layer OAM (UNI to UNI)
IEEE 802.3ah
For internal use 32 © Nokia Siemens Networks
802.1aj demarcation device
802.1aj demarcation device
IEEE 802.1ag, MEF & ITU Y.1731
Provider Edge Switch
Media Convrtr
100FX
Connectivity Layer OAM
Access Link OAM
MWR Experts enabling workshop 12th-16th October 2009
Access Link OAM
Operation and Maintenance Ethernet OAM • Service level OAM – Between any pair of service endpoints
• Fault management (802.1ag) – Continuity check on service level
• Performance management (ITU-T Y.1731) – Makes use of dedicated measurement packets – Service level: performances are provided for each individual services – Performance data: ▪ Packet loss ▪ Packet Delay ▪ Packet Delay Variation
For internal use 33 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Operation and Maintenance Management system (1/2)
• Full FCAPS features at Element Management Layer – – – – –
Alarms collection, storage, visualization, filtering, export Configuration (via GUI) of relevant parameters (e.g.ACM, RF, Bandwidth) PM management in GUI Fault Management on Topological Links Automated discovery of provided services
• Service Provisioning: – Automatic provisioning of TDM CES and VLAN services – Multi-hop E2E service management (that is, E-Line management) with SLA parameters for TDM CES – Multi-hop E2E service management (that is, E-Line management) with SLA parameters for Ethernet VLAN service – Class of Service profile management (CIR, EIR, Burst, etc…) – Configuration of H/Sby protection (Local protection group management) For internal use 34 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Operation and Maintenance Management system (2/2)
• Service Fault Management – Real time service fault monitoring – Alarm root cause identification for each service (Connectivity fault management IEEE 802.1ag)
• Service Performance Monitoring – Real time free and used bandwidth information (on link basis) – SLA monitoring: latency, packet loss, jitter information for each service (ITU-T Y.1731) – Storage and export of Ethernet counters for KPI managers for each NNI/UNI port
For internal use 35 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Operation and Maintenance management system component • Netviewer:
Access
– Element manager of all devices of
Path Manager For E2E Ethernet prov
the family
• LCT (Local Craft Terminal) – For in site operation • Path Manager – Add-on of Netviewer with E2E funcionalities
NV-LCT
NV-LCT
LMP
UNI DCN
LMP
UNI NodeB
NetViewer
FPR LMP
FP Hub First Mile
NV-LCT: NetViewer Local Craft Terminal LMP: local management port
For internal use 36 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
UNI
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 37 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
BTS with integrated MWR Eth
Eth
3G
3G
Tail Site 3G
2G 3G
FlexiPacket Radio FlexiPacket Radio Eth
• FlexiPacket Radio directly connected to BTS • Circuit emulation and Ethernet aggregation in BTS
MWR Experts enabling workshop 12th-16th October 2009
FlexiPacket Radio
2G
Eth
3G 1-2 E1
PWE
Tail Site 2G+3G
For internal use 38 © Nokia Siemens Networks
Chain Site 3G
PWE
1-2 E1
FlexiPacket Radio
FlexiPacket Radio
FlexiPacket Radio
Chain Site 2G+3G
Reducing cell site costs with integrated MW Nokia Siemens Networks
Other Vendors
Microwave ODU
Microwave ODU
IDU
NB
Others BTS
Microwave IDU
2G/3G Flexi BTS
• Separate Indoor Unit for Microwave required on BTS side
• IDU fully integrated in Flexi BTS
• Additional sit costs (power and space)
• No extra power consumption
• Separate management system For internal use 39 © Nokia Siemens Networks
• Complete integration in OSS • Less space requirements
MWR Experts enabling workshop 12th-16th October 2009
Tail and Chain sites with Indoor devices 2G
3G Eth
2-4E1*
FlexiPacket Radio
1-2 E1 FlexiPacket FirstMile or FlexiPacket Hub 1200
Tail Site 2G
• Compact Indoor devices • Up to 8 E1
2-4E1*
3G Eth
FlexiPacket Radio
1-2 E1 FlexiPacket FirstMile or FlexiPacket Hub 1200 FlexiPacket Radio *E1 from 3G in case of Hybrid IuB
For internal use 40 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Chain Site
Fully Outdoor Installation • The deployment of peripheral network is constrained by logistic issues, such as: • site space • difficulty to find sites.
• Maximum flexibility in of installation is desirable for • Fast rollout • Reduced site cost • Reduced site survey cost FlexiPacket Radio
BTS fully integrated MWR solutions
And/or
FlexiBTS
For internal use 41 © Nokia Siemens Networks
Transport sub-module of FlexiBTS
MWR Experts enabling workshop 12th-16th October 2009
FlexiPacket Hub inside a FlexiOutdoor Case
Flexi Outdoor case: outdoor installation of MWR Indoor units
MWR Hub 2G 1-2 E1 2-4E1*
FlexiPacket Radio
– Max 16 radio direction in FPH 2200(*) ▪ Suggested up to 15 to permanently reserve one port for LCT
– Max 6 radio direction in FPH 1200 (*) ▪ Suggested up to 5 to permanently reserve one port for LCT
For internal use 42 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
FlexiPacket Radio 1+1
Eth
FlexiPacket Hub
*E1 from 3G in case of Hybrid IuB
• Most scalable Hub solution in the market
3G
FlexiPacket Radio
Hub Site
Equipment cost competitors NSN
#Radio directions
Fiber Hub 2G 1-2 E1 2-4E1*
3G Eth
FlexiPacket Hub
FlexiPacket Radio 1+1 FlexiPacket Radio 1+1
• One equipment as MWR Hub and Fiber Node
For internal use 43 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Fiber Ring
Fiber Hub Site
Building the network with FlexiPacket FlexiPacket Radio directly connected to Flexi BTS (“zero footprint”)
Advanced Radio interface •Native Packet Radio
•Up to 256 QAM
•Adaptive Modulation
•Up to 450Mb/s per carrier
•Arbitrary mix of Ethernet and TDM traffic
3G
BSC
Tail Site 3G Tail Site 2G+3G
Ring Site
2G
Aggregation MW Hub Site
RNC, aGW
3G Tail Site 2G+3G
FlexiPacket Hub: same equipment as MW Hub and Ring node
2G
FlexiPacket Hub Compact Nodal Solution 3G
•Up to 16 radio directions per FPH 2200
FlexiPacket FirstMile or FlexiPacket Hub 1200 for tail and chain sites
For internal use 44 © Nokia Siemens Networks
3G
2G
•Up to 6 radio directions per FPH 1200
Chain Site 2G+3G
MWR Experts enabling workshop 12th-16th October 2009
Thank you !
For internal use 45 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
For internal use 1 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Purpose TDM traffic • All services have the same QoS • Guaranteed bandwidth • Circuits (one E1 -> one i/f -> reserved capacity) • Provisioning is inherent in equipment commissioning (Cabling and cross connection) • NE performance monitoring: all traffic in an E1 i/f has the same performance.
Packet traffic • QoS differentiation • Overbooking • Packets (many Services in one i/f
sharing same capacity) • Equipment commissioning + Service Configuration, SLA, QoS differentiation • Service oriented and E2E Performance monitoring
Network centric
Equipment - centric Equipment-centric Network design • Network = plain sum of MWR link For internal use 2 © Nokia Siemens Networks
End to End Network design • Network = equipment + QoS, synch, VLAN, addressing, OAM…
MWR Experts enabling workshop 12th-16th October 2009
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 3 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 4 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
MWR access in MBH BTS site
Access
Aggregation
Core Controller site
BTS site
FlexiPacket Microwave main focus MWR Access with FlexiPacket • Provides connectivity from BTS site to aggregation • Aggregation can be CET, ng-SDH, L2 or L3 • Traffic: Hybrid or packet 3G + 2G
For internal use 5 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Topology and connectivity Physical topology Hub Site Hub L i nk 14-28 MHz
Tail Site
Logical topology
Fiber optic
Fiber Hub Site Link n i a Ch Hz 14M
Tail Link 7-14MHz Tail Site
Chain Site
Traffic relationships Hub Site
• Topology: tree, chain – Tail, chain, hub sites • Point to point connectivity services • Hub and spoke traffic relationship (all traffic collected towards aggregation) For internal use 6 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Requirements at a glance • Traffic per node – Peak 10-50Mb/s (3G) – Peak 100-300Mb/s LTE – Average throughput can be 5-10 times lower – Statistical multiplexing (with proper QoS)
• Interfaces: – 2G BTS: 1-2 E1 – 3G BTS: ▪ Hybrid: 2-4 E1 + Electrical/Optical FE/GbE ▪ Packet: Electrical/Optical FE/GbE
• Delay – Recommended (Abis/IuB)~15-20ms
For internal use 7 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 8 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
Services CES : Circuit Emulation Service 3G
•E1 over Ethernet via Pseudo Wire Emulation
Tail Site 3G
•Higher priority in the network
2G 3G
UNI
UNI
MW Hub Site
E-Line
Tail Site 2G+3G
•Point to point service for Ethernet traffic
2G
•Configurable Committed and Peak data Rate
3G
•Basic entity for traffic provisioning and monitoring
3G
2G
Chain Site 2G+3G
Packet i/f TDM i/f
For internal use 9 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
E-Line Performance monitoring: • End to End • per service
UNI
NNI
NNI
NNI
At UNI: • Mapping of traffic to the Service – Based on Port, VLAN, Eth.Type; priority (DS or .1P bits), Source/Destination IP address
• Assignment to a Class of Service • Policing (CIR / PIR) according to SLA • CE-VLAN manipulation (transparent/translation)
For internal use 10 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
NNI
UNI
At NNI: •Traffic of a Service is identified by a VLAN ID
Circuit Emulation Services
2G 3G
NNI
NNI
NNI
NNI
At NNI: •Traffic of a Service is identified by a VLAN ID At network ingress • TDM packetization • CESOP and MEF-8 encapsulation
For internal use 11 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
CES - application Traffic grooming in STM-1 interface 2G
STM-1
E1
BSC
Eth STM-1
transport over packet of 2G and 3G E1
2G
E1
3G
E1
RNC
Packet network
Eth
3G
E1 Eth
Interoperable with CESOP in NSN BSC
BTS site E1
Packet networkFiber section
MW section For internal use 12 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Controller site
CES – Technical details and FAQ 64kb/s Granularity •
ed by CESOP
CESOP stack
Optimized 2G transport
Unfilled E1 (17 time slots) E1
Unfilled E1 (12 time slots)
2xE1
E1
1,8Mb/s
55% capacity saving
E1 e2e Delay Packetization delay
overhead Packet size
For internal use 13 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Depends on : •Links capacity •Packet size •Traffic (impact delay variation)
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 14 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
Quality of Service Quality of Service (QoS) implies the ability of the network to provide better or “special” service to a set of /application. How QoS is done?
Classification Define QoS level by looking up the received packet header
For internal use 15 © Nokia Siemens Networks
Marker Marking QoS level at packet header (802.1p,IP TOS/DS/IPPrec)
Policer Protecting network resources by preventing usage in excess of guaranteed bandwidth (bps)
MWR Experts enabling workshop 12th-16th October 2009
Buffer manager Congestions avoidance mechanisms
Queue Scheduler decide which packet forward first based on its priority
CIR and EIR Bandwidth Profiles BW profiles per EVC • CIR – Committed Information Rate – Frame delivery obligation per SLA • EIR – Excess Information Rate
EI R
EVC1
EVC2 E
CIR
CI
IR
R
– Excess frame delivery allowed – not subject to SLA if available
EIR
CIR
EVC3
2 rate, 3 Color marking Marking typically done at ingress Green – Forwarded frames – CIR conforming traffic Yellow – Discard Eligible frames – Over CIR , within EIR Red – Discarded frames – Exceeds EIR
For internal use 16 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Total UNI BW
Goals of “QoS” and SLA enforcement 1. Delay-sensitive traffic gets through with the minimum delay and frame jitter (= delay variation) 2. The CIR for each service is always delivered according to SLA quality targets 3. Each node gets a fair treatment regarding the EIR 4. Congestion avoidance respects the SLA – –
CIR is guaranteed to the Availability objective of its SLA Fairness among nodes is ensured
For internal use 17.03.2009 17 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Shortcomings of “NOT CET” transport • Lack of UNI concept and (mostly) SLA enforcement mechanisms
– Usually cannot guarantee CIR to any single nor fairness among s – Cannot implement real CAC calculations to ensure service sustainability – Is extremely dangerous to overbook unless all traffic is “EIR” and fairness is not a primary requirement
• Lack of proper L2 OAM – Difficult or impossible to troubleshoot – Difficult or impossible to isolate faults or troublesome spots – No per-service FM/PM
For internal use 18 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
QoS handling in FlexiPacket Microwave QoS is implemented both on FlexiPacket Radio and FlexiPacket Hub. FlexiPacket Hub s five priority queues, each one associated to one of the following Class of Services (CoS) that are EF1 (Expedited Forwarding) EF Control and EF2 AF Control and AF1 (Assured Forwarding) AF2 AF3 and BE At the ingress of an UNI/NNI port traffic is marked/processed using 3 bits (P) that define priority and color Priority Queue CoS
FlexiPacket Hub
Color
P bits value
EF1
4
Green
7
Yellow
--
Green
6
Yellow
--
Green
5
Yellow
4
Green
3
Yellow
2
Green
1
Yellow
0
EF Control
3
EF2 AF Control
2
AF1 AF2
AF3 BE For internal use 19 © Nokia Siemens Networks
1
0
MWR Experts enabling workshop 12th-16th October 2009
QoS handling in FlexiPacket Microwave In order to interwork with FlexiPacket Hub. P bits configuration for management traffic is used and same scheduling combination (default)
CoS
Priority Queue FPR
P bits value
EF1
3
7
EF Control EF2
2
AF Control AF1
2
AF2
1
6 5 4 3 2
AF3 BE
For internal use 20 © Nokia Siemens Networks
0
1 0
MWR Experts enabling workshop 12th-16th October 2009
QoS solution CAC
UNI Ingress Device
UNI Egress Device
Intermediate Device
Traffic NNI
NNI Mapping of traffic into a Class of service
Policing •CIR/EIR •Mark EIR
Shaping
Queuing Scheduling Discarding EIR if congestion (WRED)
Mapping
Classes of Service
•Ethernet Services: Based on – – – – –
VLAN Port Eth.Type priority (DS or .1P bits) Source/Destination IP address
According to FlexiPacket Hub and FlexiPacket Radio rules
•CES is mapped to CES CoS
CAC: Connection ission Control
For internal use 21 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
QoS solution CAC
UNI
UNI
Traffic NNI
NNI Mapping of traffic into a Class of service
Policing •CIR/EIR •Mark EIR
Shaping
CES
SP
Policing
Queuing Scheduling Discarding EIR if congestion (WRED)
Delay Sensitive
Business Critical Best Effort
WRR
Network Contol
WRED threshold for green and yellow packets For internal use 22 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Scheduling and congestion control
Connection ission Control (CAC) What is CAC? • CAC (empowered by Netviewer with path manager) enforces an end-to-end guarantee QoS • A set of actions taken during the connection set-up phase, in order to determine whether the system has enough spare resources for the new connection. • Maintain the required by the new connection SLA without affecting the SLA of already existed connections • End-to-end connection request can only be accepted if sufficient resources are available at each one of the network elements on the way of the connection. • The bandwidth will be managed at any potential congestion point. • CCM (OAM Connectivity Check Messages) packets will be prioritized in the control queues and the bandwidth will be reserved when CAC is calculated
For internal use 24 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
QoS solution Management system (NetViewer with Path manager) • Service view in each link • New service provisioning: – Check of available capacity in each involved network link – Constraint: Sum (CIR) < Capacity
CAC
Link capacity = 50 Service X Service Y Service A Service B Service C
CIR=10 CIR=5 CIR=7 CIR=5 CIR=10
EIR=20 EIR=0 EIR=15 EIR=20 EIR=0
Available = 13
UNI
UNI Ingress Device
Egress Device
Intermediate Device
Traffic NNI
NNI
Connection ission Control (CAC) to guarantee that CIR traffic requirements are met at all times regardless of network congestion
For internal use 25 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 27 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
Synchronization - features • Synchronous interfaces – – – –
TDM i/F Ethernet i/f with Synchronous Ethernet (G.8261/G.8262) Radio i/f Each i/f can be selected as clock source ▪ TDM or Eth i/f in Indoor devices ▪ Radio link or Eth i/f in Radio – A synchronous network infrastructure ▪ Physical layer synchronization in all network links ▪ Used to synchronization for CES
• IEEE1588v2 in FlexiPacket Hub
For internal use 28 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
SyncE
TDM E1
SyncE
Synchronous Ethernet
Synchronization solution w FlexiPacket MW (1/2) Synch. Ethernet Layer 1 synchronization from/to any interface
Nb Eth
SyncE
SyncE
BTS TDM E1
For internal use 29 © Nokia Siemens Networks
Synchronous Ethernet
MWR Experts enabling workshop 12th-16th October 2009
Synchronous Ethernet (ITU-T G.8261)
Synchronization solution w FlexiPacket MW (2/2) PTP (IEEE 1588-2008)
FlexiPacket Microwave ensures proper QoS for timing packets QoS: high priority for timing packets 1588 master
BTS
Packet Timing packets (unicast) RNC site 2M
BTS (w/o 1588-2008)
Third party network
1588-2008 slave
1588-2008 slave in FlexiPacket Hub
For internal use 30 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
RNC
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 31 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
Ethernet OAM Standards UNI
UNI Carrier NW
100FX Media Convrtr
Cust. Eqpmnt.
MEF & ITU Y.1731
Provider Media Edge Convrtr
Media Convrtr
Cust. Eqpmnt.
Service Layer OAM (UNI to UNI)
IEEE 802.3ah
For internal use 32 © Nokia Siemens Networks
802.1aj demarcation device
802.1aj demarcation device
IEEE 802.1ag, MEF & ITU Y.1731
Provider Edge Switch
Media Convrtr
100FX
Connectivity Layer OAM
Access Link OAM
MWR Experts enabling workshop 12th-16th October 2009
Access Link OAM
Operation and Maintenance Ethernet OAM • Service level OAM – Between any pair of service endpoints
• Fault management (802.1ag) – Continuity check on service level
• Performance management (ITU-T Y.1731) – Makes use of dedicated measurement packets – Service level: performances are provided for each individual services – Performance data: ▪ Packet loss ▪ Packet Delay ▪ Packet Delay Variation
For internal use 33 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Operation and Maintenance Management system (1/2)
• Full FCAPS features at Element Management Layer – – – – –
Alarms collection, storage, visualization, filtering, export Configuration (via GUI) of relevant parameters (e.g.ACM, RF, Bandwidth) PM management in GUI Fault Management on Topological Links Automated discovery of provided services
• Service Provisioning: – Automatic provisioning of TDM CES and VLAN services – Multi-hop E2E service management (that is, E-Line management) with SLA parameters for TDM CES – Multi-hop E2E service management (that is, E-Line management) with SLA parameters for Ethernet VLAN service – Class of Service profile management (CIR, EIR, Burst, etc…) – Configuration of H/Sby protection (Local protection group management) For internal use 34 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Operation and Maintenance Management system (2/2)
• Service Fault Management – Real time service fault monitoring – Alarm root cause identification for each service (Connectivity fault management IEEE 802.1ag)
• Service Performance Monitoring – Real time free and used bandwidth information (on link basis) – SLA monitoring: latency, packet loss, jitter information for each service (ITU-T Y.1731) – Storage and export of Ethernet counters for KPI managers for each NNI/UNI port
For internal use 35 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Operation and Maintenance management system component • Netviewer:
Access
– Element manager of all devices of
Path Manager For E2E Ethernet prov
the family
• LCT (Local Craft Terminal) – For in site operation • Path Manager – Add-on of Netviewer with E2E funcionalities
NV-LCT
NV-LCT
LMP
UNI DCN
LMP
UNI NodeB
NetViewer
FPR LMP
FP Hub First Mile
NV-LCT: NetViewer Local Craft Terminal LMP: local management port
For internal use 36 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
UNI
Content What you need to take into in network design? Network Requirements
Network Elements (*)
E2E Services
Site solutions
Operation and Maintenance
(*) refer to product presentation For internal use 37 © Nokia Siemens Networks
QoS architecture
MWR Experts enabling workshop 12th-16th October 2009
Synchronization
BTS with integrated MWR Eth
Eth
3G
3G
Tail Site 3G
2G 3G
FlexiPacket Radio FlexiPacket Radio Eth
• FlexiPacket Radio directly connected to BTS • Circuit emulation and Ethernet aggregation in BTS
MWR Experts enabling workshop 12th-16th October 2009
FlexiPacket Radio
2G
Eth
3G 1-2 E1
PWE
Tail Site 2G+3G
For internal use 38 © Nokia Siemens Networks
Chain Site 3G
PWE
1-2 E1
FlexiPacket Radio
FlexiPacket Radio
FlexiPacket Radio
Chain Site 2G+3G
Reducing cell site costs with integrated MW Nokia Siemens Networks
Other Vendors
Microwave ODU
Microwave ODU
IDU
NB
Others BTS
Microwave IDU
2G/3G Flexi BTS
• Separate Indoor Unit for Microwave required on BTS side
• IDU fully integrated in Flexi BTS
• Additional sit costs (power and space)
• No extra power consumption
• Separate management system For internal use 39 © Nokia Siemens Networks
• Complete integration in OSS • Less space requirements
MWR Experts enabling workshop 12th-16th October 2009
Tail and Chain sites with Indoor devices 2G
3G Eth
2-4E1*
FlexiPacket Radio
1-2 E1 FlexiPacket FirstMile or FlexiPacket Hub 1200
Tail Site 2G
• Compact Indoor devices • Up to 8 E1
2-4E1*
3G Eth
FlexiPacket Radio
1-2 E1 FlexiPacket FirstMile or FlexiPacket Hub 1200 FlexiPacket Radio *E1 from 3G in case of Hybrid IuB
For internal use 40 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Chain Site
Fully Outdoor Installation • The deployment of peripheral network is constrained by logistic issues, such as: • site space • difficulty to find sites.
• Maximum flexibility in of installation is desirable for • Fast rollout • Reduced site cost • Reduced site survey cost FlexiPacket Radio
BTS fully integrated MWR solutions
And/or
FlexiBTS
For internal use 41 © Nokia Siemens Networks
Transport sub-module of FlexiBTS
MWR Experts enabling workshop 12th-16th October 2009
FlexiPacket Hub inside a FlexiOutdoor Case
Flexi Outdoor case: outdoor installation of MWR Indoor units
MWR Hub 2G 1-2 E1 2-4E1*
FlexiPacket Radio
– Max 16 radio direction in FPH 2200(*) ▪ Suggested up to 15 to permanently reserve one port for LCT
– Max 6 radio direction in FPH 1200 (*) ▪ Suggested up to 5 to permanently reserve one port for LCT
For internal use 42 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
FlexiPacket Radio 1+1
Eth
FlexiPacket Hub
*E1 from 3G in case of Hybrid IuB
• Most scalable Hub solution in the market
3G
FlexiPacket Radio
Hub Site
Equipment cost competitors NSN
#Radio directions
Fiber Hub 2G 1-2 E1 2-4E1*
3G Eth
FlexiPacket Hub
FlexiPacket Radio 1+1 FlexiPacket Radio 1+1
• One equipment as MWR Hub and Fiber Node
For internal use 43 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
Fiber Ring
Fiber Hub Site
Building the network with FlexiPacket FlexiPacket Radio directly connected to Flexi BTS (“zero footprint”)
Advanced Radio interface •Native Packet Radio
•Up to 256 QAM
•Adaptive Modulation
•Up to 450Mb/s per carrier
•Arbitrary mix of Ethernet and TDM traffic
3G
BSC
Tail Site 3G Tail Site 2G+3G
Ring Site
2G
Aggregation MW Hub Site
RNC, aGW
3G Tail Site 2G+3G
FlexiPacket Hub: same equipment as MW Hub and Ring node
2G
FlexiPacket Hub Compact Nodal Solution 3G
•Up to 16 radio directions per FPH 2200
FlexiPacket FirstMile or FlexiPacket Hub 1200 for tail and chain sites
For internal use 44 © Nokia Siemens Networks
3G
2G
•Up to 6 radio directions per FPH 1200
Chain Site 2G+3G
MWR Experts enabling workshop 12th-16th October 2009
Thank you !
For internal use 45 © Nokia Siemens Networks
MWR Experts enabling workshop 12th-16th October 2009
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