Figure 33. Packet Processor - Alcatel 1850 TSS-320 Technical Handbook

– PACKET PROCESSOR: providing MPLS switching for customer or provider traffic aggregation.
The board can host several interfaces by means of Plug In Modules (PIM), thus reaching the best
performances in terms of flexibility and modularity.
In PIM resides the termination and adaptation functions related to the specific layer.
E, G E, 1 0G E E, G E, 1 0G E
ETH ETH Flow Flow
Flow Flow
ETH ETH
PH Y PH Y
PHY PHY
ctrl ctrl
M AC M AC
M AC M AC ctrl ctrl
ETH PIM ETH PIM
2 0G PAC KET PRO C ESSO R 2 0G PAC KET PRO C ESSO R
Figure 34. on page 66 describes the simplified portion of the system dealing with the management of data
traffic mapping into SDH frames.
Both data into HO SDH and into LO SDH mappings are supported, and managed by PACKET
PROCESSOR cards.
When Data over HO SDH tributaries mapping is managed, 20G PACKET PROCESSOR cards are directly
interfaced to the UNIVERSAL MATRIX in order to provide the functionalities of the standard HPC
connection function.
The mapping of data over LO SDH tributaries mapping is managed in different way, instead.
Data cards manage the mapping of the data signals into Lower Order tributaries, managing a Virtual
container with a meaningless path overhead: LO path termination, therefore, is not managed in data
cards. Due to the particular implementation, the LO SDH tributaries, carrying data clients, are mapped into
a structured HO tributary (again, the HO VCs are created with a meaningless path OH).
It is therefore necessary to interface the data cards to the UNIVERSAL MATRIX in order to manage the
HO tributaries aggregation towards the LOA cards for SDH LO tributaries processing.
This first passage into the LOA card is necessary not only for interfacing the LO SDH matrix device, in
order to provide LO cross connection, but also in order to provide the real LO path termination
functionality: the meaningless HO tributaries are terminated and the LO containers are recovered, then
the LO path OH is managed as foreseen by SDH standards.
Technical Handbook Common
Functional Description
M ULTISERVIC E PIM M ULTISERVIC E PIM
H P H P
HP HP
LPT LPT LVC LVC
LPT LPT LVC LVC
T T
T T
So So RX RX
So So RX RX
So So
So So
Functions used for Functions used for
intrashelf connections intrashelf connections
O D U k O D U k
O D Uk O D Uk
L2 L2
L2 L2
So So
m ap m ap
So So
m ap m ap
H P H P
H P H P
H VC H VC
HVC HVC
T T
T T
RX RX
RX RX
So So
So So
M AC M AC
M AC M AC
proc proc
proc proc
VLAN VLAN
VLAN VLAN
proc proc
proc proc
SVLAN SVLAN
SVLAN SVLAN
proc proc
proc proc
ETH ETH
ETH ETH
M PLS M PLS
M PLS M PLS
Sk Sk
Sk Sk
proc proc
proc proc
ETS ETS
ETS ETS
proc proc
proc proc
RPR RPR
RPR RPR
Sk Sk
Sk Sk
PAC KET PRO C ESSO R PAC KET PRO C ESSO R
PAC KET PRO C ESSO R PAC KET PRO C ESSO R
O n board O n board O n board
O n board O n board O n board
Packet Packet Packet
Packet Packet Packet
switch switch switch
switch switch switch

Figure 33. PACKET PROCESSOR

M U LTISERVIC E PIM M U LTISERVIC E PIM
HP HP
H P H P
LVC LVC LPT LPT
LVC LVC LPT LPT
T T
T T
RX RX Sk Sk
RX RX Sk Sk
Sk Sk
Sk Sk
Functions used for Functions used for
intrashelf connections intrashelf connections
O D U k O D U k
O D Uk O D Uk
Sk Sk
Sk Sk
HP HP
H P H P
H VC H VC
HVC HVC
T T
T T
RX RX
TD M TD M TD M RX RX
TD M TD M TD M Sk Sk
Sk Sk
M AC M AC
M AC M AC
proc proc
proc proc
M AC M AC M AC M AC
M AC M AC M AC M AC
VLAN VLAN
VLAN VLAN
proc proc
proc proc
VLAN VLAN VLAN VLAN
VLAN VLAN VLAN VLAN
SVLAN SVLAN
SVLAN SVLAN
proc proc
proc proc
SVLAN SVLAN SVLAN SVLAN
SVLAN SVLAN SVLAN SVLAN
M PLS M PLS ETH ETH
M PLS M PLS ETH ETH
proc proc Sk Sk
proc proc Sk Sk
M PLS M PLS M PLS M PLS
M PLS M PLS M PLS M PLS
ETS ETS
ETS ETS
proc proc
proc proc
ETS ETS ETS ETS
ETS ETS ETS ETS
Packet Packet Packet Packet
Packet Packet Packet Packet RPR RPR
RPR RPR
Sk Sk
Sk Sk
PAC KET PRO C ESSO R PAC KET PRO C ESSO R
UNIVERSAL PAC KET PRO C ESSO R PAC KET PRO C ESSO R
AG N O STIC AG N O STIC
MATRIX
M ATRIX M ATRIX
O n board O n board O n board
O n board O n board O n board
Packet Packet Packet
Packet Packet Packet
switch switch switch
switch switch switch
20G PAC KET PRO C ESSO R 20G PAC KET PRO C ESSO R
Alcatel 1850 TSS-320 Rel. 1.1
8DG 07734 AAAA Edition 01
L2 L2
L2 L2
m ap m ap
m ap m ap
Flow Flow ETH ETH
Flow Flow
ETH ETH
PH Y PH Y
PH Y PH Y
ctrl ctrl
M AC M AC
ctrl ctrl M AC M AC
ETH PIM ETH PIM
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