Information and Communication Networks Carrier Ethernet / Broadband Evolution Dr.Ulrich Schoen...
-
Upload
amber-steele -
Category
Documents
-
view
219 -
download
2
Transcript of Information and Communication Networks Carrier Ethernet / Broadband Evolution Dr.Ulrich Schoen...
Informationand Communication Networks
Carrier Ethernet / Broadband Evolution
Dr.Ulrich Schoen
Siemens ICN Carrier Products – System Engineering
ITU All Star Access Workshop, 2-4 June 2004
ICN CP SE Page 2
… the Broadband Networking Trend:
Almost all Carrier Services will be IP-based!(www, VPN, VoIP, TV/Video ...)
Ethernet is the „natural Language“ of IP ...(cheap, packetizing, statistical gain ...)
... but, Ethernet must become CarrierGrade!(VMAN, MPLS, OA&M ...)
ICN CP SE Page 3
Broadband Deployments:Bitrate Efficiency vs. Revenue Profitability
100Mbit/s
100Mbit/s
Chunghwa(Taiwan)
DTAG(Germany)
40Mbit/s
eAccess(Japan)
APACStrategy
Source: Broadband World Forum 05/2004Dr.Semmoto (eAccess) et.al.APAC, especially: (South)Korea, Japan, Taiwan, China ...
Access Bitrate Mbit/s
28 $21 $
$ Monthly Rate
10 $
100$
60 $
26Mbit/s
3Mbit/s
ICN CP SE Page 4
Example:KT’s Next Services over Broadband
ICN CP SE Page 5
.... for this Broadband Services Trend to become real, a very cost effective, performant
and dedicated Packet Network is key:
ICN CP SE Page 6
Carrier Ethernet:Access and Metro Network Scenario
Metro/RegionalCore
CustomerPremises
Streetcabinet
Metro Access
IP/MPLSCore
Voice
Inter-Metro Backbone
PPE_SNT
PPE_M/L/XLPPE_SHE
IP Router
DSLAM
opticalsplitter
Cu
IP Router
ISP
GE
Eth/GE
PPE_SLE
PPE_SLE
Ethernet OAM
RessourceManagement
PPE_SLE/SHE
Seabridge Products
OEM
GE
802.16d
GPONGPON
WiMAXWiMAX
xDSLxDSL
fiberEFMEFM
PPE_SHE
fiber
Source: ICN CP SE A
ICN CP SE Page 7
IP/MPLS Core Network
MPLS MPLS
MPLS MPLSPE
hiD
MPLS
A combination of VLAN access andMPLS-based IP Core is scalable and efficient
Site ACE
Site B
CE
Site C
CE
VLAN
hiD
VLAN
hiD
Metro Ethernet Network
Metro Ethernet Network
VLAN
hiD
VLAN
hiDSite D
CE
PE
hiD
MPLS
Does not require MPLS-aware nodes near to the customer location PE nodes still need to implement one virtual bridge per VPLS instance Additional protection via MPLS Fast Reroute only between PE nodes – additional
Ethernet protection mechanisms are necessary between PEs and CEs Good scalability
full mesh of tunnel LSPs between PE nodes is still required, but the number of PE nodes is dramatically decreased
Services can still be carried over an IP/MPLS core network
Tunnel-LSPVC-LSPProvider VLAN Provider VLAN
Net
wor
k A
rchi
tect
ures
ICN CP SE Page 8
Carrier Ethernet: Characteristics and Objectives
Provider Multiple SPs (Service Provider)
Services Multi-Services: www, Voice, Video ...
Charging Flat rate or call by call (PPP)
BRAS BRAS possible, alternative ESN
QoS, CIR yes
Customer Separation yes
Service Separation yes
Network OAM yes
ICN CP SE Page 9
Ethernet Standardization:Many Standardization bodies involved
IEEE 802 Provider bridge, Fault management, Link Security, QoS
DSL Forum Ethernet based Access Networks, QoS
MEF Services, OAM, UNI/NNI, Traffic Management, Protection, Circuit
Emulation
ITU Services, Equipment, UNI/NNI, Circuit Emulation (SG15) OAM, QoS, Traffic Management, Protection, VPNs (SG13)
CCSA China specific Ethernet definitions
IETF Ethernet over IP/MPLS, L2VPN
ICN CP SE Page 10
Summary
NG Broadband networks will be based on Ethernet/VLAN and MPLS
A carrier grade NG Broadband network needs
An efficient end-to-end management solution
Reliable and scalable nodes and network architectures
Leading edge access technologies
Carrier Ethernet relies on standards that secure investment policy.