Figure 1. Simplified View Of 1850 Tss-320 Functional Model - Alcatel 1850 TSS-320 Technical Handbook

• For packet applications
– IEEE 802.17 (RPR)
– IEEE 802.3 (Ethernet) and ITU-T G.8021
– IETF RFC3031 (MPLS)
– ATM Forum (ATM)
Besides the electrical matrix, a full optical λ switch will be also possible.
According to the provided description this is the overall (generic) scheme of 1850 TSS-320 MSTP:
Cross-connections of groups of λ s Cross-connections of groups of λ s Cross-connections of groups of λ s Cross-connections of groups of λ s Cross-connections of groups of λ s
(optical matrix) (optical matrix) (optical matrix) (optical matrix) (optical matrix)
Cross-connections of single λ s Cross-connections of single λ s Cross-connections of single λ s Cross-connections of single λ s Cross-connections of single λ s
(optical matrix) (optical matrix) (optical matrix) (optical matrix) (optical matrix)
ODU cross-connection ODU cross-connection ODU cross-connection ODU cross-connection ODU cross-connection
(electrical TDM matrix) (electrical TDM matrix) (electrical TDM matrix) (electrical TDM matrix) (electrical TDM matrix)
High order VC cross -connections High order VC cross -connections High order VC cross -connections High order VC cross -connections High order VC cross -connections
(electrical TDM matrix) (electrical TDM matrix) (electrical TDM matrix) (electrical TDM matrix) (electrical TDM matrix)
Low order VC cross - connections Low order VC cross - connections Low order VC cross - connections Low order VC cross - connections Low order VC cross - connections
(electrical TDM matrix) (electrical TDM matrix) (electrical TDM matrix) (electrical TDM matrix) (electrical TDM matrix)
RPR MAC functionality RPR MAC functionality RPR MAC functionality RPR MAC functionality RPR MAC functionality
(electrical packet matrix) (electrical packet matrix) (electrical packet matrix) (electrical packet matrix) (electrical packet matrix)
MPLS switching functionality MPLS switching functionality MPLS switching functionality MPLS switching functionality MPLS switching functionality
(electrical packet matrix) (electrical packet matrix) (electrical packet matrix) (electrical packet matrix) (electrical packet matrix)
L2 switching functionality L2 switching functionality L2 switching functionality L2 switching functionality L2 switching functionality
(electrical packet matrix) (electrical packet matrix) (electrical packet matrix) (electrical packet matrix) (electrical packet matrix)

Figure 1. Simplified view of 1850 TSS-320 functional model

Integrating the capabilities of many transport (server) layers, 1850 TSS-320 is providing a smooth
evolutionary path from today's narrowband networks to future (data optimized) networks.
Indeed by combining Sonet/SDH ADM and DCS, WDM Mux/Demux, multiservice data switching and
aggregation capabilities (ATM, IP/MPLS, RPR, Ethernet) in one NE, 1850 TSS-320 will allow network
operators to easily increment functionality and performances of their network leveraging on current
infrastructures (refer to Figure 2. and Figure 3.)
Alcatel 1850 TSS-320 Rel. 1.1
16/270 8DG 07734 AAAA Edition 01
∑λ ∑λ ∑λ ∑λ
i i i i
STM -N, STM -N, STM -N, STM -N, STM -N,
10GE 10GE 10GE 10GE 10GE
STM-N STM-N STM-N STM-N
E4, GE E4, GE E4, GE E4, GE
E1, E3, FE E1, E3, FE E1, E3, FE E1, E3, FE
DS1, DS3 DS1, DS3 DS1, DS3 DS1, DS3
GE, 10GE GE, 10GE GE, 10GE GE, 10GE
E, FE, GE, 10GE E, FE, GE, 10GE
E, FE, GE E, FE, GE
Server Server Server
Client Client Client
∑λ ∑λ ∑λ ∑λ
OTS OTS OTS OTS
OMS OMS OMS OMS
Och Och Och Och
ODU ODU ODU ODU ODU
STM -N, STM -N, STM -N, STM -N, STM -N,
(1,2,3) (1,2,3) (1,2,3) (1,2,3) (1,2,3)
10GE 10GE 10GE 10GE 10GE
STM-N STM-N STM-N STM-N
MSP MSP MSP MSP MSP MSP MSP MSP MSP
E4, GE E4, GE E4, GE E4, GE
HPC HPC HPC HPC HPC HPC HPC HPC HPC
E1, E3, FE E1, E3, FE E1, E3, FE E1, E3, FE
LPC LPC LPC LPC LPC
DS1, DS3 DS1, DS3 DS1, DS3 DS1, DS3
GE, 10GE GE, 10GE GE, 10GE GE, 10GE
RPR RPR RPR RPR RPR
MPLS MPLS MPLS MPLS
L2 L2 L2 L2
E, FE, GE E, FE, GE E, FE, GE, 10GE E, FE, GE, 10GE
Technical Handbook Common
i i i i
General