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MALCMulti-Services in the Access Network
Ralf Sattler01. November 2006
Agenda
Existing Service offerings and equipment requirementsThe MSAN conceptService TransportBusiness Application exampleEFM Ethernet in the First MileEFM and QoS
Today’s Services
Broadband
POTS
Business Services
Today’s service offerings : ADSL2+, POTS, ISDN BRI,
ISDN PRI, E1, E3/DS3
Required Equipment:DSL Mux, DLC, Splitter, SDH ADM
Residential Services
PBX
Data Services
Leased Lines
DSLAM
Splitter
DLCADM
The MSAN Concept
Residential ServicesBusiness Services
Broadband
VoIP/ POTS
IPTVToday’s service offerings :
ADSL2+, VDSL2, SHDSL, SHDSL.bis-EFM, POTS, ISDN BRI, ISDN PRI,
E1-EFM, E3/DS3
Required Equipment:MSAN, Splitter (ISDN only)
PBX / VoIP
High CapacityData
Private Networks
The MSAN Concept cont.
05
1015202530
k U
SD
CalssicalDeployment
MSAN
DSLAMDLCSplitterADMMALC
01234567
1 2 3 4Years
k U
SD
ClassicalDeploymentMSAN
Operations and Maintenance Cost
Initial Deployment CostAdvantages through cost saving• Less equipment• Less rackspace• Less operations and
maintanance
Competitive Advantages• Similar Service Offering • More cost effective• Additinal Services• Added Values
Service Transport (RPR, EAPS)
VDSL2POTSIPTV
ADSL2+ISDNIPTV
PON
EFME1 (TDM)
ActiveEthernet
RPR/EAPS
SoftswitchResilient Transport using standardized protocols
IP
VideoHeadend
VoIP
E1 CES
Ethernet/IP
IP TV
Business Services – Connecting Customers
IP
SHDSL - EFM
22.8Mb
5.7Mb
E1 - Data
8.192Mb
SDH2.048Mb
Multiple access technologies for all requirements• Copper: SHDSL 1 through 8 x 5.7Mbps
Ethernet transport• E1: 1 through 8 x 2.048Mbps• E3/DS3: 1 or 2 x 34/45Mbps• Active Ethernet: 10/100/1000 Enet via SFP
modules
E3/DS3
10/100/1000 Base xCopper/fiber
34/45Mb
Active Ethernet - EFM
E-LAN ApplicationThe Problem
• A Flexible set of connection speeds are required to serve the different needs for Headquarter, Remote Office and Teleworkers and preserve the ability to grow with easy and non-service affecting upgrades
• The WAN network needs to provide a secure ethernet transport and needs to transport the internal IEEE802.1Q structure
• Cost effective access connections require QoS
The Solution• Use EFM for efficient data transport
Less overhead than ATM Less latency than ATM
• Provide bandwidth of up to 1000 Mbps using:
EFM SHDSLEFM E1EFM E3/T3EFM Active Ethernet
• Transparent VLAN transport by using QinQ • Prioritize VoIP traffic or business critical
applications
HeadquarterRemote Office
Teleworker
Private LAN
Data
VoIP
LAN
Voice
Company wide LAN and VoIP Network
PBX
Switch
EFM – What‘s it anyway?EFM stands for Ethernet in the First MileIt is an IEEE standard (802.3ah) which defines• Copper bonding• Optical specifications• OAM functions
EFM works on any physical interface including • Interfaces defined per IEEE802.3ah:
G.SHDSL (PMD type 2Base-TL)VDSL2 (PMD type 10PASS-TS)PON (PMD types 1000Base-PX10/20)Active Ethernet (PMD types 100Base-LX10/BX10, 1000Base-LX10/BX10)
• Interfaces not yet defined per IEEE802.3ahE1/T1 (PMD not yet specified in the standard)E3/DS3 (PMD not yet specified in the standard)
Why EFM?
Less latency than ATM-based products• 64/65 byte encapsulation instead of SAR
Higher throughput • ATM may have a 10-30% atm related overhead
dependend on the QoS requirements• PTTs/Incumbants restrict the use of SHDSL.bis
therefore it is important to gain highest throughput efficiency
Moving to Ethernet: What About QoS?
Problem: - ATM was needed to separate traffic and apply QoS- EFM makes no special provisions for QoS
Solution: - Zhone’s MTM provides ATM-like QoS without PVCs
Video traffic needs a dedicated Bit Rate of ~3Mbps per channel
Voice Traffic uses only a little bit of bandwidth, but requires a high priority
Video traffic needs a dedicated Bit Rate of ~3Mbps per channel
Voice Traffic uses only a little bit of bandwidth, but requires a high priority 1 PVC for VoIP
1 PVC for Video
1 PVC for DataData Services or other Bursty traffic types can use what’s left over, or can be rate limited into “Service Tiers”
Data Services or other Bursty traffic types can use what’s left over, or can be rate limited into “Service Tiers”
No PVCs!
The Separation of Services is done logically, in real time, by MTM
Moving to EFM: What About QoS?
MTM provides service separation and QoS without VCs
Voice
Multicast Video
VOD
STB / Middleware
OAM / Network Mngmt
Gaming
Web Browsing
Business VPN
802.11 LAN
Onsite Technician
Set-Top Box
MTM – Multimedia Traffic Management
Define the transmission quality based on the service and its requirements• 1. Classify the traffic
Check on MAC-address/range, IP-address/range. VLAN, TCP/UDP port
• 2. Apply an actionSet VLAN and L2 qualitySet backbone VLAN ID for QinQDefine rate limits per traffic flow
Resume
Traditional access network deployments require lots of equipment resulting in high initial and operational costMulti-Service Access Nodes combine multiple technologies in a single deviceNew technologies like EFM provide competitive advantages against traditional service providers or PTTsIntelligent OAM and traffic stearing implementations reduce truck-rolls and make services more cost-effective
