21cn implementation & strategy 21cn core trial
DESCRIPTION
21CN Implementation & Strategy 21CN CORE TRIAL. Keith Davies. 21CN NETWORK STRUCTURE VISION THE KEY NETWORK NODES & FUNCTIONS. Call servers. Analogue PSTN. IAD. Physical metro node location. Physical core node location. Distributor Node. Aggregator Node. Metro Node. Core Node. - PowerPoint PPT PresentationTRANSCRIPT
All information on this slide is indicative - For discussion purposes only
21CN Implementation & Strategy
21CN CORE TRIAL
Keith Davies
All information on this slide is indicative - For discussion purposes only
DistributorNode
AggregatorNode
MetroNode
CoreNode
Physical metronode location
Physical corenode location
Cabinets / PCPs MSAN – initially DSLAM withPSTN/Combo cards or DSL cards
IAD
Separation to IP/MPLS coreGateways – to NGSGateways – to PNOsMedia servers
Call servers
MPLS coreInter-metro nodetrafficCall servers – locatedin data centres with signalling long-lined
21CN NETWORK STRUCTURE VISIONTHE KEY NETWORK NODES & FUNCTIONS
Analogue PSTN
Derived voice
All information on this slide is indicative - For discussion purposes only
Metro node
VOICE - ARCHITECTURE OVERLAY
AggregatorNode
TDM & IPlogical
interconnects
AnaloguePSTN replacement
Consumervoice
Businessvoice
MSAN
POTS
DSL
ISDN
Businessdata
Data centre location
Call servers
Intelligence
TA Mediaserver
Gateway
PErouter
NTE
DSLModem
Terminal adaptor
ADSLmodem
For PSTN features multimedia & mobility services (Including “Broadband Voice” business services)
For tones, announcements,conference, messaging…
Gateway to legacynetworks and PNOs
Provider EdgeRouter
MPLScore
ISDN2/30
All information on this slide is indicative - For discussion purposes only
Metro node
TRIAL ARCHITECTURE OVERLAY
AggregatorNode
TDM logical interconnects
AnaloguePSTN replacement
MSAN
POTS& DSL CombiCard
Metro Node location
Call servers
Mediaserver
Gateway
PErouter
DSL
Modem
ADSLmodem
POTS features
For tones, announcements,conference, messaging…
Gateway to legacynetwork
Provider EdgeRouter
MPLScoreMSiP
BRAS LegacyIP network
All information on this slide is indicative - For discussion purposes only
TRIAL STAGES
Stage 1: PSTN Trunking
Stage 1a: Class 4 Route Bypass
Stage 1b: Class 4 Switch Bypass Stage 2. PSTN local switching + Broad Band
Stage 2a: Class 5 MGCP PSTN ~1000 lines
Stage 2b: Class 5 H.248 ~ same 1000 lines
Stage 2c: Class 5 Multi-vendor MSAN 3000 lines
Stage 4: Class 5 FTTP Link ~1000 lines
All information on this slide is indicative - For discussion purposes only
21C TRIAL CORE NETWORK
Core Router
Metro Edge Router
Metro Node A Metro Node B
100M
STM-64 over DWDM
GEChan STM-1
ATM STM-4
10GE
Undefined
ATM
Media Gateway
Media Server
Media Gateway
Media Server
Core Node C
Grey not installed
Core Node D
Grey not installed
LAN Switch
iNode Node F
Call Server3xSCAx2x100Base
T
iNode Node G
Call Server3xSCAx2x100Base
T
Signalling gateways6x2x100BaseT
Signalling gateways6x2x100BaseT
Cambridge PoP Woolwich PoP
Metro Node E
iNode Node H
Call Server3xSCAx2x100Base
T
Faraday PoP
To MSANs To MSANs
PSTNPSTN
London Central EC PoP
All information on this slide is indicative - For discussion purposes only
TRIAL SERVICES Stage 1
All PSTN & ISDN call types Exceptionally 999/112 traffic is not routed through trial
PSTN
All information on this slide is indicative - For discussion purposes only
TRIAL SERVICES Stage 2
Consumer Direct Exchange Line (Analogue POTS) The capability to make 999/112 calls will not be a
guaranteed facility The following call types will NOT be available
a. Calls to the operator (100)
b. Non-geographic special rate (08) except those numbers required for the trial e.g. Service Centre number
c. Premium rate calls (09)
d. International calls (00)
Limited range of PSTN Calling Features
Note. All triallists are BT employees
PSTN
All information on this slide is indicative - For discussion purposes only
TRIAL SERVICES Stage 2
Trialists within reach of the service, will, at an appropriate time in the trial be offered BT Broadband 512k service (with modem), which includes 512k broadband access and a Voyager 205 router.
Broad Band
All information on this slide is indicative - For discussion purposes only
21CN TRIAL LOCATIONS
Stage 2a &2b
Stage 2c
Stage 1a TrunkRoute Bypass
L/WOOD GREEN EMPIRE WAT
London Central EC Trial Node
WoolwichTrial Node
Cambridge Trial Node&
WAT Bypass (Stage 1b) CRAYFORDWHITTONWOOLWICHCATFORDGROVE PARKBROMLEYELTHAMCHERRY HINTONFELIXSTOWE
Stage 2a & 2b Service Locations
All information on this slide is indicative - For discussion purposes only
TRIAL TIMELINE
Stage 1a)….in service
Stage 1b) traffic loading imminent, complete by year end
Stage 2a) customer on load during January 2005
Stage 2b) April / May 2005
Stage 2c) June 2005
Stage 4. Summer 2005
Trial closes December 2005
Present Milestones
All information on this slide is indicative - For discussion purposes only