A Brief description of GPON Technology

1. GPON Technology
Pushing Fiber Optic to the Access Networks

2. Quien no conoce nada; no ama nada.
Quien no puede hacer nada; no comprende nada.
Quien nada comprende, nada vale.
Pero quien comprende también ama, observa, ve.
Cuanto mayor es el conocimiento inherente a una cosa,
mas grande es el amor que se le tiene.
Anonimo

3. The Bandwidth Process

4. 4
Bandwidth grow expectations
Bit Movement will grow significatly next years mainly puched by Video app
1 Petabyte (Pb) = 1015 bytes
Google move 20Pb/day

5. 5
Bandwidth Expetations

6. 6
GPON On BRIC countries
GPON Equipment Revenue, BRIC Countries and
Worldwide
GPON Ports, BRIC Countries and
Worldwide
GPON Revenue ($Millions)
CY09 CY10 CY11 CY12 CY13 CY14 CY15 CY16 CY17
BRIC GPON $157 $822 $850 $1,368 $1,394 $1,374 $1,385 $1,393 $1,417
WW GPON $631 $1,489 $1,921 $2,523 $2,516 $2,512 $2,447 $2,464 $2,569
% BRIC 25% 55% 44% 54% 55% 55% 57% 57% 55%
GPON Ports (Millions)
CY09 CY10 CY11 CY12 CY13 CY14 CY15 CY16 CY17
BRIC GPON 0.8 2.4 6.5 14.5 16.7 18.6 20.3 21.5 22.4
WW GPON 2.4 5.0 11.5 20.1 23.2 25.6 27.6 29.0 30.3
% BRIC 32% 48% 57% 72% 72% 73% 74% 74% 74%

7. 7
Cumulative port shipments by country
• Total BRIC port shipments were up nearly 122% in CY12
• From 2013–2017, cumulative BRIC 2.5G GPON port shipments
will top 97 million
• The bulk will be on ONTs to directly connect subscribers
– Especially in China, where China Telecom and China Unicom are
moving from an architecture based on fiber-to-the-building to direct
fiber connections in the home in order to achieve stated goals of
providing 20M service across their urban footprints
2013–2017 Cumulative 2.5 GPON Port Shipments
China Russia Brazil India
2.5G GPON 89M 5.3M 1.9M 0.7M

8. Access, edge, core
History

9. 9
• Point-to-Point links
– Simple, standardized and mature technology
– N fiber lines
– 2N transceivers
A Litle Bit of History

10. 10
• Active Optical Network
– Simple, standardized and mature technology
– 1 fiber line
– Curb Switch  power in the field
– 2N+2 transcievers
A Litle Bit of History

11. 11
• Passive Optical Network (PON)
– “Simple”, standardized technology
– 1 fiber line shared between N users.
– N+1 transceivers.
– passive devices (splitters) as
main componets on the street
Current Solution

12. 12
ODN Optical
Data Network
OLT: Optical Line Terminator
ONU: Optical Network Unit
ODN: Optical Distribution Network
Elements

13. 13
Elements (2)

14. 14
Why GPON?
GPON（Gigabit-capable Passive Optical Networks）
GPON supports :
• Triple－play service
• high-bandwidth
• long-reach (up to 20 km)
• GPON is the choice of large carriers in the international market

15. Typical Scenarios

16. 16
ODN OLTONU
FTTH
1:64
Fiber To the Home
Spliter
Spliter
OLT
ONU
ONU
ONU
Scenarios

17. 17
FIber OLTONU
FTTB/C
CopperNT
1:64
Fiber To the Business or Fiber to MDU
XDSL Node
Scenarios

18. 18
FIber OLTONU
FTTCab
CopperNT
Fiber To Cabinet
1:64
XDSL Node
Cabienet
Scenarios

19. 19
Logical reach – Logical reach is the maximum logical
distance between ONU/ONT and OLT. – In GPON, the
maximum logical reach is defined as 60 km. (Delay)
Physical reach – Physical reach is the maximum physical
distance between the ONU/ONT and the OLT. – In GPON,
two options are defined for the physical reach: 10 km and
20 km.
Differential fiber distance – In GPON, the maximum
differential fiber distance is 20 km. The distance between
nearest and farthest ONT

20. 20
1:64
Spliter
Spliter
OLT
ONU
ONU
ONU
Elements
20 Km
Diferencial distance

21. Protecting Links

22. 22
Elements
A Way to Protect FO
1:64
Spliter
Spliter
OLT
ONU
ONU
ONU
Optical
Key
Optical
Key

23. Optical Fiber/Splitters
Main Characteristics

24. 24
Elements
Spliters:
• Two Basic Types
 Fuser Biconical Tapper (FBT)
 Planar lightwave circuit (PLC)

25. 25
10 Log 𝑃0
1𝑚𝑤 = P0 𝐷𝑏𝑚
P0 𝑚𝑤 = 3,1 mw
= 5 𝐷𝑏𝑚
3,1 mw
1,5 mw
1,5 mw
3 db Lost
5 𝐷𝑏𝑚
Elements
Spliters:
(FBT) Fuser Biconical Tapper Splitters of this type support three
wavelengths (850/1310/1550 nm), and are incapable of operating at
other wavelengths

26. 26
Elements
Spliters:
Planar lightwave circuit (PLC) They have a broader operating
wavelength range (1260-1650 nm) than low-cost fused biconic tapered
(FBT) couplers.

27. 27
Planar lightwave circuit (PLC)
Fiber Type Single mode G657A1 or G652D
Typical Insertion Loss (≤) dB 19.7

28. 28
Número de puertos
Pérdida de divisor (dB) (excluidas
conexiones)
2 3
4 6
8 9
16 12
32 15
64 18
Elements
Spliters: Typical Loose
Loss = 10 Log {N}
N:: Port Quantitie

29. Typical Deployments

30. 30
Typical Deployments
Deployment Strategies
1:64
Spliter
OLT
ONU´s
1:64
Spliter
ONU´s

31. 31
1:64
Spliter
OLT
ONU´s
1:64
Spliter
Deployment Strategies
Typical Deployments

32. 32
1:64
Spliter
Spliter
OLT
ONU
ONU
ONU
Deployment Strategies
Typical Deployments

33. 33
• The greater the division ratio, the lower the infrastructure cost per user.
• But the division causes energy loss (in an ideal division by N, the loss is 10
log (N) dB (aprox).
• Therefore, for a higher division they should be used more power
• Components and lower losses, which have a higher cost.
• Commercial lasers have power in the range from 0 to 10 dBm
• The highest number of users on the network involves reducing the
bandwidth available to each.
• Studies show 1:40 as the optimal division (J. Wellen, "High-speed FFTH
technologies in an open access plataform" in Broadband Optical Access
Networks and Fiber to the home, edited by C.Lin, 139-166, John Wiley &
Sons, 1995.)
• In practice are used ratios of 1:16, 1:32
Division Ratio
Elements

34. Band Occupancy for GPON
and XGPON

35. 35
Band Occupancy for GPON and XGPON
Optical Fiber Bands and Losses
The C-band (Conventional) is the most used for transmission over long distances
The peak in the band E is due to water absorption and can be removed in High
quality fiber

36. 36
Optical Fiber Bands
Band Occupancy for GPON and XGPON

37. 37
XGPON Overlay
1:2
Spliter
Spliter
OLT
ONUONU
ONU
WDMr1
XGPON
Band Occupancy for GPON and XGPON

38. Data Multiplexing in GPON
Networks
Main Characteristics

39. 39
• GPON adopts Wavelength Division Multiplexing (WDM) technology,
facilitating bi-direction communication over a single fiber
GPON Wavelengths windows
For Single fiber
GPON possible transfer Speeds
Data Multiplexing
Elements
OLT
ONUs
1310 nm
1490 nm
DownStream
UpStream

40. 40
• Downstream  point-to-multipoint network
– The OLT manages the whole bandwidth.
• Upstream  multipoint-to-point network
– ONUs transmit only towards the OLT.
– ONUs cannot detect other ONUs transmissions.
– Data transmitted by ONUs “may collide”.
Need of a channel separation mechanism to fairly share
bandwidth resources
Up: TD MA
Time Division Multiple Access
Down:P2P Fo
solution
Elements
Elements

41. 41
• Downstream toward the OLT interleaves frames for
different ONUs as a continuous beam and sends in
“broadcast” to all ONU.
• Each ONU draws its tables based on information in the
header.
• Upstream toward the OLT, the ONU who is not
transmitting switch off its transmitter.
• This causes the transmission is in burst mode.
• Each frame must have a preamble for synchronization.
• A guard time is reserved between frames.
Elements
Elements

42. • To separate upstream/downstream signals of multiple users over a single fiber,
GPON adopts two multiplexing mechanisms:
• In downstream direction, data packets are transmitted in a “broadcast way”
ONU#3
OLT
ONU#1
ONU#2
1 2 3
1 2 3
1 2 3
1 2 3
1
2
3
Downstream Direction: Broadcast mode
On 1490 nm Fiber Optic wavelength
Data Multiplexing
Elements

43. 43
• In upstream direction, data packets are transmitted in a TDMA (Time Division
Multiple Access) manner.
Data Multiplexing
Elements
43
3 1 2
3
t1
1
t2
2
t3
Upstream Direction: TDMA mode
On 1310 nm Fiber Optic wavelength
OLT
ONU#1
ONU#2
ONU#3
1
2
3
t0

44. The GPON Layers
Control Layer
User Layer

45. 45
Upper Layers
Layer 4
Layer 3
Layer 2
Physical PON PHY
TDM POTS DATA VIDEO
TCP/UDP
IP
Ethernet
GPON Layering
Control
GEM (Generic Encapsulation Method)
GTC-TC Frame (GPON Transmission Convergence
frames )
GTC Layer

46. 46
• The most important Layer is named Generic
Transmission Convergence (GTC)
• We can divided the GTC layer in two planes:
– The User plane.
– The control and management system witch
consists of three parts:
• embedded OAM,
• PLOAM, (Physical Layer Operation and Maintenance)
• OMCI.
THE GTC LAYER

47. GEM Framing Sublayer
GEM
Adaptation
Sublayer
OMCI
Adapter
GEM
Adapter
DBA
Control
GPON PMD
GPON GTC
47
G-PON Transmission Convergence (GTC) Layer
Multiplexing Control an Data
Framing,
It specifies GPON frame format,
the media access control protocol,
OAM processes and
information encryption method.
GTC frame provides the common
time reference for the PON and
common control signaling for
the upstream.
“Light Coding” NRZ
PLOAM OMCI GEM
Client

48. GTC
Adaptation
Sub-Layer
GTC
Framing
Sub-Layer
48
The embedded OAM channel is
provided by field-formatted
information in the header of the
GTC frame. Some of its functions
are: bandwidth allocation,
security key switching, and
dynamic bandwidth assignment
signaling
The PLOAM channel is a message-
formatted system carried in a
dedicated place of the GTC frame.
This channel is used for all other PMD
and GTC management information
that is not sent via the embedded
OAM channel
The ONU management and control
interface (OMCI) channel is used to
manage the service-defining layers,
which reside above the GTC
Protocol stack for the C/M-plane
PLOAM OMCI
PLOAM
Partition
Multiplexing based on location withing the frame
OMCI
adapter
Port-ID
Filter
GEM
Adapter
ALLOC ID
Filter
GEM
Partition
FRAME
Header
OAM
Embeded

49. 49
Port-ID and
PTI filter
GEM
Adapter
GEM Client
ALLOC ID
Filter
PLOAM
Partition
GEM
Partition
FRAME
Header
Multiplexing based on location withing the frame
GTC
Adaptation
Sub-Layer
GTC
Framing
Sub-Layer
In the downstream direction, the
GEM frames are carried in the GTC
payload and arrive at all the
ONUs. The ONU framing sub layer
extracts the frames, and the GEM TC
adapter filters the frames based on
their 12-bit GEM Port-ID. Only
frames with the appropriate Port-IDs
are allowed through to the GEM
client function
In the upstream direction, the GEM
traffic is carried over one or more T-
CONTs (Alloc ID) . The OLT receives
the transmission associated with
the T-CONT and the frames are
forwarded to the GEM TC adapter
and then the GEM client
Protocol stack for the User-plane

50. TCONT
GEM
PORT
CE-VLAN
CE-VLAN
CE-VLAN
Service
Ethernet
CE-VLAN
CE-VLAN
CE-VLAN
GEM
Port
UpDown
TCONT
GEM
PORT
Ethernet Flow
Ethernet Flow
Ethernet Flow
Service
Ethernet
CE-VLAN GEM
Port
UpDown
TCONT
GEM
PORT
GEM FlowGEM FLOW GEM
Port
UpDown

51. The Down Stream Flow
DS Flow

52. 52
• Down Stream Flow
– GPON Transmission Convergence frames (GTC) are always 125 msec long
• 19440 bytes / frame for 1244.16 rate
• 38880 bytes / frame for 2488.32 rate
– Each GTC frame consists of Physical Control Block downstream (PCBd) +
payload
• PCBd contains sync, OAM, DBA info, etc.
– Will be the Timing base for all ONUs .
• Payload may have ATM and GEM partitions (either one or both)
GTC Frame
payloadPCBd payloadPCBd
125 Usec
payloadPCBd
125 Usec
The Down Stream Flow

53. 53
FEC Ind
1−bit
Reserved
1−bit
Super−frame
Counter 30−bit
Blen
BW Map Length
(12 bit)
Alen
ATM Partition
12−bit
CRC
8−bit
Access 1
8 bytes
Access 2
8 bytes
Access N
8 bytes
……….
AllocID
12 bits
Flags
12 bits
SStart
2 bytes
SStop
2 bytes
CRC
Down Stream (PCBd Structure)
pSync
4−bytes
Ident
4−bytes
PLOAMd
13−bytes
BIP
1−byte
PLend
4−bytes
US BW Map
N*8−bytes
PCBd Payload
125useg
ONU−ID
1−byte
Msg ID
1−byte
Message
10−bytes
CRC
1−byte
The Down Stream Flow

54. 54

55. 55
•The PLOAMd channel supports the PON TC
layer management functions:
ONU activation,
OMCC (Optical Network Unit Management
and Control Channel) establishment.
encryption configuration,
key management
alarm signaling
PCBd Payload
pSync
4−bytes
Ident
4−bytes
PLOAMd
13−bytes
BIP
1−byte
PLend
4−bytes
US BW Map
N*8−bytes
ONU−ID
1−byte
Msg ID
1−byte
Message
10−bytes
CRC
1−byte
ITU-T G.984.3
• PLOAMd Typical messages:
 Upstream_Overhead.
 Assign_ONU-ID.
 Ranging_Time.
 Deactivate_ONU-ID.
 Disable_Serial_Number.
 Encrypted_Port-ID.
 Request_Password
 Assign_Alloc-ID.
 No message.
 Request_Key.
 Configure Port-ID.
 Physical_Equipment_Error
 BER Interval
The Down Stream Flow

56. 56
• PLOAM Messages Down Stream Direction (just some
messages …!!)
– Assign_ONU-ID
• To link a free ONU-ID number with the serial number also provided
in this message.
– Ranging_Time
• To indicate the value that the specified ONU must fill into its
equalization delay register.
– Deactivate_ONU-ID
• To instruct an ONU with this ONU-ID to stop sending upstream traffic
and reset itself. It can also be a broadcast message.
– Disable_Serial_Number
• To disable/enable an ONU with this serial number.
The Down Stream Flow

57. 57
• PLOAM Messages Down Stream Direction
– Assign_Alloc-ID
• To instruct an ONU that the specified allocation ID is assigned
to it.
– Configure Port-ID
• This message links the internally processed OMCI channel at
the ONU with a 12-bit Port-ID. The Port-ID is appended to the
GEM overhead and used as an addressing mechanism to route
OMCI over the GEM channel.
The Down Stream Flow

58. 58
Payload (GEM Packet)
Header PCBd
BW Maps
Alloc ID
#1
Start
100
End
200
Alloc ID
#2
Start
400
End
650
Alloc ID
#3
Start
700
End
1000
ID#1 ID#2 ID#3
Upstream Flows
Byte
100
Byte
200
Byte
400
Byte
650
Byte
700
Byte
1000
NOTE: Allocation identifier (Alloc-ID) is a 12-bit number that the OLT assigns to an ONU to identify a
traffic-bearing entity that is a recipient of upstream bandwidth allocations within that ONU.
Such a traffic-bearing entity can be represented either by a T-CONT or by the upstream OMCC.
Down Stream (US Bandwidth Maps)
The Down Stream Flow

59. The Upstream Flow
US Flow

60. 60
• Up Stream flow.
• Physical Layer Overhead upstream (PLOu)
– always sent by ONU when taking over from another ONU
– contains preamble and delimiter (lengths set by OLT in PLOAMd)
BIP (1B), ONU-ID (1B), and Indication of real-time status (1B)
• PLOAM upstream (13B) - messaging with PLOAMd
• Power Levelling Sequence upstream (120B)
– used during power-set and power-change to help set ONU
power so that OLT sees similar power from all ONUs
• Dynamic Bandwidth Report upstream
– sends traffic status to OLT in order to enable DBA computation
PLOu PLOAMu PLSu DBRu payload
The Up Stream Flow

61. 61
PCBu PLOAM PLSu DBRu Payload
Preamble
“A” bytes
Delimiter
“B” bytes
BIP
1−byte
ONU−ID
1−byte
Ind
1−byte
Up Stream
CRC
1−byte
DBA
1, 2, 4
bytes
The Up Stream Flow

62. 62
PCBu PLOAM PLSu DBRu Payload
ONU−ID
1−byte
Msg ID
1−byte
Message
10−bytes
CRC
1−byte
ITU-T G.984.3
Up Stream (PLOAMu )
•The PLOAM channel supports
the PON TC layer management
functions,
ONU activation,
OMCC establishment,
encryption configuration,
key management and
alarm signaling
• PLOAMu Typical messages
 Serial_Number_ONU
 Password
 Dying_Gasp
 No message
 Encryption key
 Physical_Equipment_Error
(PEE).
 PST message
 Remote error
 indication (REI)
 Acknowledge
The Flow

63. 63
• Up Stream flow. Considerations.
• GTC fames are still 125 msec long, but shared amongst ONUs
• Each ONU transmits a burst of data
– using timing acquired by locking onto OLT signal
– according to time allocation sent by OLT in BWmap
• there may be multiple allocations to single ONU
• OLT computes DBA by monitoring traffic status (buffers)
of ONUs and knowing priorities
– at power level requested by OLT (3 levels)
• this enables OLT to use avalanche photodiodes which are sensitive to high
power bursts
– leaving a guard time from previous ONU's transmission
– prefixing a preamble to enable OLT to acquire power and phase
– identifying itself (ONU-ID) in addition to traffic IDs (“Port-ID”)
– scrambling data (but not preamble/delimiter)
The Up Stream Flow

64. 64
GPON
GEM´s and TCON´s

65. 65
• In an ODN (Optical Data Network) there is 1 OLT, but many
ONUs….So.
• ONUs must somehow be labeled for:
– OLT to identify the destination ONU.
– ONU to identify itself as the source.
• GPON has several levels of labels, two of the most relevant
are:
– For GEM (Generic Encapsulation Method) mode encapsulation:
• “GEM” Port_ID (12b).
– Transmission-CONTainer or T-CONT :
• Alloc_ID (12b) (can be >1 T-CONT per ONU)
Data Multiplexing
GEM´s and TCON´s

66. 66
• GEM Encapsulation method and GEM-PORT-ID
– GEM is a generic encapsulation method – any packet type (and even TDM) can
be encapsulated on it.
– GEM supports fragmentation and reassembly.
– GEM is based on GFP (Generic Frame Procedure), and the header contains the
following fields:
• Payload Length Indicator - payload length in Bytes.
• Port ID - or GEM-Port ID: identifies the target ONU.
• Payload Type Indicator (GEM OAM, congestion/fragmentation indication).
• Header Error Correction field (BCH(39,12,2) code+ 1b even parity).
5 B
GEM´s and TCON´s
Port ID
(12b)
PLI
(12b)
HEC
(13b)
PTI
(3b)
payload fragment
(L Bytes)
PLOu PLOAMu PLSu DBRu payload
GEM Header Payload GEM Header Payload GEM Header Payload
125useg

67. 67
• Original Packet Format
Layer 2 information Layer 3 information Layer 4 information
MAC DA MAC SA
Length
Type
IP header TOS ......
IP
SA
IP
DA
TCP/UDP
Header
...... Data
 Single Tag Packet Format GEM encapsulated
802.1Q/P
Length
Type
MAC DA MAC SA
Length
Type
IP
header
TOS ......
IP
SA
IP
DA
TCP/UDP
Header
...... Data
TPID
16 Bits
Priority
3 Bits
CFI
1 Bits
VID
12 Bits
PTI
Port
ID
PLI EOF
GEM

68. 68
The GEM Header. Encapsulating Ethernet on GEM
Inter Packet Gap
Preamble
SFD
DA
SA
Length/Type
Data
FCS
EOF
12
7
1
6
6
2
4
1
PLI
Port ID
PTI
Identify the ONT
On Downstream
Layering GPON
PTI
Code Meaning
000 User data fragment, Congestion
has Not occurred, Not the end of a
frame
001 User data fragment, Congestion
has Not occurred, End of a frame
010 User data fragment, Congestion
Has occurred, Not the end of a
frame
011 User data fragment, Congestion
Has occurred, End of a frame
100 GEM OAM
101 Reserved
110 Reserved
111 Reserved
GEM
Payload
Payload for GCT frames
GEM´s and TCON´s

69. 69
• Traffic Container (T-CONT)
– Main meaning:
• An Internal ONU Entity that represent the allocation of Upstream Bandwidth at
the Transmission Convergence layer ant it is signaled by the OLT.
– They only have significance at upstream direction. But are signaled at the
downstream direction.
– There are at least 1 T-CONT per ONT (Alloc_id materializes the T-CONT
concept and could be equal to ONT_id for the first one asigned)
• T-CONT “holds” together traffic/port-IDs with “similar characteristics”.
• Can be intended as a group of “traffic classes”.
– T-CONT´s can be “burst” or not or can be high versus low priority.
– “Temporal slots” are spread as needed to guarantee “QoS” parameters.
Upstream Flows
TCON#1 TCON#2 TCON#3
Byte
100
Byte
200
Byte
400
Byte
650
Byte
700
Byte
1000
ONU#1
ONU#1 ONU#1
Data Multiplexing

70. 70
T1 T2
Up Stream Flows
TCONTs
TCONS at Real Time

71. 71
TCONS at Real Time

72. 72
GPON
Activation process

73. 73
• The term "activation process" refers to the set
of distributed procedures allowing an inactive
ONU to join or resume operations on the
PON. The activation process includes three
phases:
– Parameter learning,
– Serial number acquisition,
– Ranging.
Activation process

74. 74
• Parameter learning phase, the ONU, while remaining
passive, acquires the operating parameters to be
used in the upstream transmission.
• Serial number acquisition phase, the OLT discovers a
new ONU by its serial number and assigns the ONU-
ID.
– OLT recognizes arrival of an ONT
– OLT discovers the Serial Number
– OLT assigns ONT_id to ONT
• ONU ID: between 0…253 for ONU (254 for broadcast)
Activation process

75. 75
• Ranging: The EqD (equalization delay) for each given ONU
is computed by the OLT based on the measurement of the
corresponding RTD (Round Trip Delay) and is
communicated to the ONU during the ranging phase.
– OLT measures arrival phase
– OLT provides equalization delay
– ONT adjusts TX phase
• Services can be provisioned
Activation process

76. 76
• State 1
– The OLT is transmitting valid
downstream frames, and the
ONU attempts to attain frame
synchronization. Once two
consecutive frames with a valid
PSync value are found, the ONU
clears the LOS/LOF error and
transitions to State O2.
• State 2
– OLT Start transmiting DS
overhead PLOAM witch containg
“intructions” for ONU build the
Overhead for US mesages
(paramenter Learning) , example
• Number of guard bits
• Length of Type 1 Preamble bits
• Length of Type 2 Preamble bits
• Pattern of Type 3 preamble pattern.
OLT ONU
State
S1
State
S2
State
S3
Activation process

77. 77
• State S3.
– Extended_Burst_Length PLOAM
message.
• Optional.
– Pre-SN quiet window (DS Frames
with no Bandwith Maps add 200 usec
of quite window).
– Serial_Number_Request message.
– Post-SN quiet window. (add 50usec of
quite window)
OLT ONU
State
S1
State
S2
State
S3
Activation process

78. 78
• State S4
– Range_Request message
• Range_Request is a BWMap entry, to a
specific previously OLT send a quite
window message .
– Range_Response message
• The ONU responds to the Range_Request
access with a Range_Response message.
The response is the Serial_Number_ONU
PLOAM.
– Ranging_Time PLOAM message
• After sending the Range_Request, the OLT
looks for the ONU transmission. Upon
receiving the transmission, the OLT
calculates the distance to the ONU and
sends a Ranging_Time PLOAM message to
indicate to the ONU the new Equalization
Delay to use in future transmissions.
ONU
State
S1
State
S2
State
S3
OLT
State
S4
Activation process

79. 79
1
2
3
Activation process
OLT MSJ ONU MSJ

80. 80
1
2
3
4
Activation process

81. 81
1
2
3
Activation process

82. 82
Activation process

83. 83
Activation process

84. 84
PCBd Payload N PCBd Payload N+1 PCBd Payload N+2
Start of DS Frame
From OLT Point of View
Quite window 250 useg
Earliest
Expected
Response
PLOAM
Latest
Expected
Response
PLOAM
Propagation
Delay
0-100us
ONU response
Time
34-36us
Pre-
Asigned
delay
Random
Delay
0-48us
PCBu
Start
Time
PLOAMu
Stop
Time
Propagation
Delay
Timing relationships during serial number acquisition
SN Request
Alloc ID 254
Start Time X
Stop time X+12

85. 85
DS- PayloadPCBd
BwMappSync
US- PayloadPCBu
Start of DS Frame
From OLT Point of View
Propagation
Delay
Onu Response Time
Requested
Delay
StartTime
StopTime
Start of DS Frame
From ONU Point of View
Propagation
Delay
US Burst
Start of US Frame
From ONU Point of View
OLT
ONU
ONU response time is a system-wide parameter that is chosen to givet he ONU sufficient time to receive the downstream frame, including
Upstream bandwidth map, perform DS and US FEC as needed, and prepare an upstream response. The value of the ONU response time is 35±1 μs.
Requisite delay refers to the total extra delay that an ONU may be required to apply. The purpose of the requisite delay is to compensate for
variation of propagation and processing delays of individual ONUs, and to avoid or reduce the probability of collisions between upstream
transmissions.
Typical timing for ONU upstream transmissions

86. 86
OMCI
(ONT Management and Control Interface)
ME´s
(Management entities)

87. 87
• A way of MIB (Management Information Base)
formed by Management Entities (ME´s) is used to
fully describe the ONU configuration, status and
several other actions
• OMCI constitute the protocol in order to support
the set of actions performed over ONU to create;
delete and other set of actions on those ME´s
OMCI

88. 88
OMCI Introduction
• OMCI (ONT Management and Control Interface) is an OAM service that
provides a standard way to discover ONU capabilities and to manage and
control them
• OMCI protocol runs across an GEM connection (OMCC) between OLT and
ONU
• OMCI is asymmetric: OLT is the master and ONU is the slave
• A single OLT may use multiple OMCI instances over multiple OMCI channels to
control multiple ONUs
• It allows OLT to perform following functions:
– Manage UNI at the ONU. Establish and release connections across the ONU.
– Request configuration information and performance statistics.
– Autonomously inform system operator of events/alarms (AVC, link failures).
• Standards
– G.984.4 (2008/02)
– G.984.4 (2009 AMD1 and AMD2)
– G.988
OMCI

89. 89
OMCI Protocol define:
• OMCI Message Format
• OMCI Operation Procedure
• Protocol-independent OMCI MIB Description
– Defined in terms of managed entities (MEs).
– MEs are abstract representations of resources and services in an
ONU.
– ME´s Covered Function Areas :
• Configuration Management
• Fault Management
• Performance Management
• Security Management
OMCI

90. 90
OMCI Message Format
GEM
Header
(5 Bytes)
Transaction
Correlation
Identifier
(2 Bytes)
Message
Type
(1 Byte)
Device
Identifier
(1 Byte)
Message
Identifier
(4 Bytes)
Message
Contents
(32 Bytes)
OMCI
Trailer
(8 Bytes)
53 Byte GEM Cell
PortID (12bits) for the OMCC for
the addressed ONU
- MSB=1 (high priority)
- MSB=0 (low priority)
- OLT defines this
identifier to correlate
REQ and RSP
- 0x0000 for notification
messages.
0x0A for GPON
ME Identifier
(ME Class Value)
ME Instance
DB AR AK MT
32 17
16 1
Message Type
AK=1, Msg is an ACK
AR=1, ACK requested0
Max # of MEs is 65535
Max # of Instances per ME is 65536
0x0 L CRC
Length = 0x28
ITU-T I.363.5
OMCI

91. 91
OMCI Message Types
• Common Operations
– Create, Delete, Set, Get
– Get Next: for table attributes.
– Performance Monitoring: Get Current Data
• MIB Upload & Reset
– MIB Upload, MIB Upload Next, MIB Reset
• Alarm Retrieval
– Get All Alarms, Get All Alarms Next
• Software Download
– Start Download, Download Section, End Download, Activate
Software, Commit Software
• Others
– Test, Reboot, Synchronize Time
OMCI

92. 92
OMCI ME Definition
• A Managed Entity (ME) is composed of attributes, actions and notifications
defining its characteristics.
• Managed Entity (ME Class Value)
– Purpose of the entity
– Autonomously instantiated by ONU or explicitly created by OLT
– Relationship(s) with other managed entities
• Attributes: Attribute Definition
– ME id: This attribute provides a unique number for each instance of this managed
entity.
– List of attributes. Attribute Number within ME Determined by the Order in Which
Attributes are Listed
• Actions: operations that may be performed on the entity (Create/Get/Set/Test,
etc.)
• Notifications (Alarm, AVC, TCA, Test Result)
• There can be multiple instances of a Managed Entity. Each instance has the
same attributes, actions and notifications even though the values of the
attributes may be different from each other.
OMCI

93. 93
Managed entities:
• The protocol-independent
MIB has been defined in
terms of managed entities
(ME´s)
• The managed entities are
abstract representations
of resources and services
in an ONT.
Managed
entity A
Entity created
by ONU
Managed
entity B
Entity created
by OLT
Managed
entity A
Managed
entity B
Entity A has explicit pointer to entity B
Managed
entity B
Managed
entity A
Entity A has implicit ID relationship
to entity B (ME IDs are equal)
Managed
entity A
Managed
entity B
There can be 0..X instances of A related to B
0..X
1
Managed
entity A
Managed
entity B1
1
There is a 1 to 1 relationship of A to B
OMCI

94. 94
MAC bridge
service
profile
MAC bridge
port config
data
MAC bridge
port config
data
0..m
0..p
GEM
interwork-
-ing TP
PPTP
xx UNI
1
0..1
UNI
GEM port
network
CTP
1
0..1
0..1
MAC bridge
port filter
table
1
1
0..w
1
1
0..1
1
VLAN
tagging
filter data
1
1
OMCI

95. 95
MAC bridge
service
profile
Managed entity id:
Spanning tree ind
Learning ind:
Port bridging ind:
Priority
Max age:
HELLO time:
Forward delay
MAC learning
depth:
Unknown MAC
address discard:
MAC bridge
port config
data
Managed entity id:
Bridge id pointer:
Port num:
TP type:
Physical path termination point Ethernet UNI
IEEE 802.1p mapper service profile
IP host config data
GEM interworking termination point
Multicast GEM interworking termination
point
TP pointer:
Port priority:
Port path cost:
Port spanning tree ind:
Port MAC address:
OMCI

96. 96
GEM
interwork-
-ing TP
Managed entity id:
GEM port network CTP connectivity pointer:
Interworking option:
0 Circuit-emulated TDM
1 MAC bridged LAN
2 Reserved
3 Reserved
4 Video return path
5 IEEE 802.1p mapper
6 Downstream broadcast
7 MPLS PW TDM service
Service profile pointer:
Interworking termination point pointer:
CES service profile if interworking option = 0
MAC bridge service profile if interworking option = 1
Video return path service profile if interworking option =
4 IEEE 802.1p mapper service profile if interworking
option = 5 Null pointer if interworking option = 6
CES service profile if interworking option = 7
OMCI

97. 97
Layer 2 functions
OMCI supports two major layer 2 traffic mapping
models:
• MAC bridging: described in [IEEE 802.1D] and [IEEE
802.1Q]
• "IEEE 802.1p mapping".
OMCI

98. 98
MAC bridging
IEEE BRIDGE
OMCI

99. 99
IEEE 802.1p mapping
IEEE 802.1p mapper service profile A
managed entity witch associates the priorities
of IEEE 802.1p [IEEE 802.1D] priority tagged
frames with specific connections. This
managed entity directs upstream traffic to the
designated GEM ports.
OMCI

100. 100
The two basic layer 2 services can be used in various
combinations to achieve different overall connectivity's.
• N:1 bridging, where a bridge is used to serve multiple UNI ports from a single ANI
service.
• 1:M mapping, where a mapper is used to serve a single UNI with multiple ANI
connections, based on IEEE 802.1p priorities.
• 1:P filtering, where a bridge with filters is used to serve a single UNI with
multiple ANI connections, based on some VLAN information other than IEEE
802.1p priorities.
More “Exotic” combination can be realized
OMCI

101. 101
N : 1 MAC Bridging
N
IEEE BRIDGE
OMCI

102. 102
802.1p Bit´s  GEM´s X
1:P Mapping
OMCI

103. 103
1: P Filtering
OMCI

104. 104
N:M bridge-mapping
OMCI

105. 105
N:P bridge-filtering
OMCI

106. 106
TCON´s and DBA

107. DBA
Dynamic Bandwith alocation

108. 108
DBA
• What is DBA?
• DBA, Dynamic Bandwidth Assignment
• Why DBA?
• It enhances the uplink bandwidth utilization of PONports.
• More users can be added on a PON port.
• Users can enjoy higher-bandwidth services, especially
those requiring comparatively greater change in
terms of the bandwidth.
• DBA operation modes:
• SR-DBA: status report-DBA
• NSR-DBA: non status report-DB
Dynamic Bandwith Allocation

109. 109
Dynamic Bandwidth Assignment(DBA):
A process by which the optical line terminal (OLT) distributes the upstream PON capacity
between the traffic-bearing entities within optical network units (ONUs), based on the
dynamic indication of their activity statusa nd their configured traffic contract
Status Reporting DBA (SR-DBA):
A method of dynamic bandwidth assignment that infers
the dynamic activity status of the traffic-bearing entities within optical network units
(ONUs) based on the explicit buffer occupancy reports communicated over the embedded
OAM channel.
Traffic-Monitoring DBA (TM-DBA):
A method of dynamic bandwidth assignment that
infers the dynamic activity status of the traffic-bearing entities within optical network units
(ONUs) based on the observation of the idle GEM frame transmissions in place of granted
upstream bandwidth allocations.
Dynamic Bandwith Allocation

110. 110
SR-DBA Operation
Dynamic Bandwith Allocation

111. 111
SR-DBA Operation Payload
Dynamic Bandwith Allocation

112. 112
Static Bandwith Allocation
Dynamic Bandwith Allocation
Dynamic Bandwith Allocation

113. 113
NSR-DBA Operation
NSR is an algorithm scheme that realizes DBA. It helps to predict the bandwidth allocated to
each ONU based on the traffic from ONUs.
Procedure:
Step1: Monitor the number of data packets received by OLT within the specified interval.
Step2: Use the result of real time monitoring in step 1 to calculate the utilization rate.
Step3: Recognize the congestion status by comparing the utilization rate with the specified
limits.
Dynamic Bandwith Allocation

114. 114
GPON
MULTICASTING FOR IPTV SERVICES

115. 115
Video Over GPON:
• Two ways
 Video Overlay (VFO)
 IP Video

116. 116
Upper Layers TDM POTS DATA
Layer 4
Layer 3
Layer 2
Physical
TCP/UDP
IP
Ethernet
GEM (Generic Encapsulation Method)
GTC-TC Frame (GPON Transmission Convergence
frames )
PON PHY
VIDEO
VideoOverlay
Video Over GPON

117. 117
Elements
Video Overlay
1:2
Spliter
Spliter
OLT
ONUONU
ONU
Video RF1550 nm
ONU´s Are equiped with triplexers components
Optical Mux
RF
RF
RF

118. 118
Switch
Forward
IGMP
Control
Switch
Forward
IGMP
Control
U Interface
V Interface
ONU
RG
OLT
GPON has native Multicas characteristics Becasue its P2Mp
Nature well suited for IPTV distribution
Down Stream Multicas Flow
Up Stream Control Flow
Video Over GPON

119. 119
Switch
Forward
IGMP
Control
Switch
Forward
IGMP
Control
U Interface
V Interface
ONU
RG
OLT
Join Msg or Leave Msg
Mcast Flow
Video Over GPON

120. 120
GPON Side
Ethernet Side
Joint, Leave
Mesages
Multicast
Flows
Joint, Leave
Mesages
Multicast
Flows
Same VLAN ID For US and DS
Diferent GEM Ports ID
Video Over GPON

121. 121
Multicasting on a L2 Network (The Elements)
IGMP aware
Core L2 network
L2 GPON
IGMP aware
Acces Network
Head End
ONU
ONU
ONU
StO
StO
StO
OLT
L2 Switches
IP-TV Down
converter
Video Over GPON

122. 122
The Standars

123. 123
PON Standards
Full Service Access
Network (FSAN)
Group
Ethernet in the
First Mile (EFM)
Alliance
International
Telecommunication
Union (ITU-T)
Institute of Electrical &
Electronics Engineers
(IEEE)
APON/BPON
(G.983) EPON
(802.3ah)GPON
(G.984)
Propose standards
Ratify standards
Working
Groups
Standards
Bodies
Standards
10G-PON
(802.3av)
NG-PON
(G.987)
GPON STANDARDS

124. 124
G984.X
GPON STANDARDS

125. 125
GPON
Service Modeling
OMCI

126. 126
OLT/SW
T
T
T
T
T10GigE
1GigE
ONU
ONU
ONU
GPON plus P2P SERVICESS Access
Access
Access
Service Modeling

127. 127
TCONT
GEM
PORT
CE-VLAN
CE-VLAN
CE-VLAN
Trunkport
Service
Ethernet
Up Stream and down stream point of View
CE-VLAN
CE-VLAN
CE-VLAN
GEM
Port
UpDown
Service Modeling
TCONT
GEM
PORT
Ethernet Flow
Ethernet Flow
Ethernet Flow
Accessport
Service
Ethernet
CE-VLAN GEM
Port
UpDown
VLAN

128. 128
OLT/SW
T
T
T
T
T10GigE
1GigE
ONU
ONU
ONU
CMSW
GPON plus P2P SERVICESS
VLAN 10
VLAN 11
VLAN 12
VLAN 11
VLAN 12
VLAN 13
VLAN 14
VLAN 12
VLAN 13
Service Modeling

129. 129
TCONT
GEM
PORT
CE-VLAN
CE-VLAN
CE-VLAN
Trunkport
TCONT
GEM
PORT
CE-VLAN
CE-VLAN
CE-VLAN
TCONT
GEM
PORT
CE-VLAN
CE-VLAN
CE-VLAN
Trunkport
Service
Ethernet
Service
Ethernet
Service
Ethernet
Up Stream and down stream point of View
CE-VLAN
CE-VLAN
CE-VLAN
GEM
Port
CE-VLAN
CE-VLAN
CE-VLAN
GEM
PORT
CE-VLAN
CE-VLAN
CE-VLAN
GEM
PORT
UpDown
Service Modeling

130. 130
TCONT
GEM
PORT
Trunkport
Q in Q Service
Ethernet
GEM
Port
UpDown
Q in Q
CE-VLAN
CE-VLAN
CE-VLAN
SP-VLANSP-VLAN
TCONT
GEM
PORT
Trunkport
Q in Q Service
Ethernet
GEM
Port
UpDown
Q in Q
CE-VLAN
CE-VLAN
SP-VLAN #1
Q in Q
CE-VLAN
CE-VLAN
SP-VLAN #2
SP-VLAN #1
SP-VLAN #2
Service Modeling

131. 131
TCONT GEM
PORT
Trunk port
Q in Q Service
Ethernet
GEM
Port
UpDown
Q in Q
CE-VLAN
CE-VLAN
SP-VLAN #1
Q in Q
CE-VLAN
CE-VLAN
SP-VLAN #1
SP-VLAN #2 TCONT GEM
PORT
SP-VLAN #2GEM
PORT
Service Modeling

132. 132
GRACIAS

133. Case of success

134. 134
LD2502 - 16E1
LD2502 – 4STM-1
LD2502
LD2504
LD2504 – 4STM-1
LD2504 - 16E1

135. 135
GW
GW
10GiE
1GiE
OLT 2500
GPON
ODN
E1
E1
E1
Eth
4xSTM-1
PSTN
ONU 1600
ONU500
ONU500
ONU500-S
ONU500-S
CMSW
CMSW
ONU 1600

136. 136
• Main characteristics
– Ports
• RS323 for Local Console.
• 2 GigE ports
• 1 GPON port
– Power Supply
• External. Optional Battery backup.
– Software (Main Features)
• Bridged Unit.
• G984.2; G984.3; G984.4 Fully compatible.
• 802.1Q/P support.
• 4 queues per GigE ports.
• IP for management in band (IP-Host ME)
NOTE: The graph shows only a
generic prototype

137. 137
• Hardware:
– This ONU will be deployed with 3
party Hardware and Software
developers.
• FITEC.
– Ports
• RS232 Console Port
• 3 Fast Ethernet Port
• 1 GigE Port
• 2 E1 G703 (75/120ohms) ports.
• 1 External alarm connector
• External E1 clock
– Power Supply
• Internal Full range w/
Redundancy
• Software Main
Characteristics.
– Bridged ONU.
– IEEE 802.1Q/P.
– G984.4; G984.3 fully
compliant .
– E1 Emulation Services based
on SAToP Standards and MEF
Encapsulation Method.

138. 138
OLT 2500
GPON
ODN
E1
E1
E1
EthONU 1600
ONU500
ONU500
ONU500-S
ONU500-S
CMSW
CMSW
ONU 1600
PSTN
10GigE
xSTP
EAPs
Routing
GW
GW
10GigE
Internet
GigE Serv.
GigE Serv.

139. 139
OLT
Split
ONU
1
ONU
2
ONU
3
10Gig
1GigE
100M
100M
100M
R1
SW1
R2
SW2
100M
100M
100M
T
T T Trunk Ports
Access Port With PVID
User defined
T
T
•LAN Servicess
•All Services will be provided “trough VLANs”.
• Ports will be acting as Trunk ports or Access (PVID) ports.
• ONUs will acts as “protocol adapters” between Eth and GPON.
•no protocols others than those related with GPON will be provided

140. 140
VLAN
Mapper
GEM
Mapper
TCON
Mapper
TCON
Mapper
TCON
Mapper
GEM
Mapper
VLAN
Mapper
P2
P1
Distintas puertas
Mismas VLANs (PVID)
Mismo GEM
Mismo TCON
P3
Distinta VLAN (PVID)
Distinto GEM
Distinto TCON
GEM
Mapper
VLAN
Mapper
P4
N VLANs
Un GEM
Un TCON
GPON
Access
Ports
With PVID
Trunk
Ports
With N VLANs
“In some sense the ONU will act like a remote SW.”
LAN Services

141. 141
OLT
Split
ONU
1
ONU
2
ONU
3
10Gig
1GigE
E1s
100M
E1s
100M
E1s
100M
CLK
CLKCLK
CLK
IFW: Interworking Function
R1
R2
GW1
GW2
STM1PSTN
E1s
E1´s Services
PSPN

142. 142
VLAN
Mapper
GEM
Mapper
TCON
Mapper
GEM
Mapper
VLAN
Mapper
GEM
Mapper
VLAN
Mapper
GPON
TCON
Mapper
E1-1
E1-2
E1-3
E1 Services will be mapped as LAN Services: On a VLAN  GEM T-CONT

143. 143
LightDrive5(config)#sh run
!
no service password-encryption
service ssh enable
service telnet enable
!
hostname LightDrive5
!
log stdout
username asga privilege 15 password asga
!
ip domain-lookup
!
load-interval 15
bridge protocol stp
bridge acquire
!
spanning-tree mst config
!
interface gpon0.1
switchport
switchport mode trunk
!
interface gpon0.2
switchport
switchport mode trunk
!
!
interface xe0.1
switchport
switchport mode trunk
!
NEW Interfaces / Context Added from GPON “modules”
Existing Interfaces / Context from BCM
New interfaces on top
menu: GPONY.X
Interface. Heritages many GigE or
Xe attributes.

144. 144
LightDrive5(config)#link-profile PEPE
LightDrive5(config-gpon-link)#?
commands:
delimiter Delimiter parameters
ds-fec-mode Downstream FEC mode (Default: disable)
exit End current mode and down to previous
mode
help Description of the interactive help
system
idle idle parameters
max Configuration max values of some link
variables
preassigned-eqd Pre-assigned equalization delay
(Default: 0 usec)
rx Link receive parameters
show Show running system information
LightDrive5(config-gpon-link)#
The “Link profile”
top menu.
Configuration Context. Profiles.

145. 145
LightDrive5(config)#link-profile PEPE2
LightDrive5(config-gpon-link)#?
commands:
delimiter Delimiter parameters
ds-fec-mode Downstream FEC mode (Default: disable)
exit End current mode and down to previous mode
help Description of the interactive help system
idle idle parameters
max Configuration max values of some link variables
preassigned-eqd Pre-assigned equalization delay (Default: 0 usec)
rx Link receive parameters
show Show running system information
LightDrive5(config-gpon-link)#rx ?
alpha Delimites number of errors before send the signal
bcdr Burst CDR parameters
delimiter Delimiter parameters
ed Energy Detection
la LA parameters
ranging-size Ranging access window size (0-127) (Default: 0).
wait-size Wait window size (0-127) (Default: 0).
LightDrive5(config-gpon-link)#rx ed ?
inversion When set to True, ED pin will be inverted in the Rx block
(Default: true)
pattern Pattern (0x00 - 0xFF) (Default: 0xAA)
size Pattern Size (0-2) (Default: 0)
windows-size Number of cycles to wait for energy detection (0-128)
(Default: 128)
LightDrive5(config-gpon-link)#rx ed inversion ?
false False
true True
LightDrive5(config-gpon-link)#rx ed inversion false
LightDrive5(config-gpon-link)#
Top “link-profile menu”
Second level from “link-profile menu”
The Rx sub menu
Third level from “link-profile menu”
The “ed” sub menu
Setting the “ed” variable. To “false”
Sailing on sub menus (tree of commands)
or context. Same idea, AsGOS.

146. 146
LightDrive5>
LightDrive5>en
LightDrive5#sh run
!
no service password-encryption
service ssh enable
service telnet enable
!
hostname LightDrive5
!
log stdout
username asga privilege 15 password asga
!
ip domain-lookup
!
load-interval 15
bridge protocol stp
bridge acquire
!
spanning-tree mst config
!
link-profile PEPE2
rx ed inversion false
!
interface gpon0.1
switchport
switchport mode trunk
!
interface gpon0.2
associate link-profile PEPE2
switchport
switchport mode trunk
!
LightDrive5(config-if)#associate link-profile PEPE2
% Warning. If link is enable, It's necessary to reinitialize the OLT to the link profile take effect
LightDrive5(config-if)#
Link profile Association
The Link profile definitions.
The Associated Link profile command

147. 147
LightDrive5(config)protocol-profile <teste>
alloc-size 100
ber us-interval 300
ber ds-interval 300
ber sf-threshold 7
ber sd-threshold 7
dba-size 1001
disable-onu disable
deactivate-onu disable
drift interval 1001
drift limit 5
los-gpio-pin 10
los-initial enable
guard-bits 1001
key-encrypted enable
min round-trip 100
min onu-response 100
mcast-encryp disable
preamble tx 0x1 0x2 0x3 0x4
preamble type 0x1
pwd-request disable
us-fec enable
tx-ctl-limit 100
!
Protocol Profile
Protocol profile Top Menu Variables.
Then this profile must be associated to a particular
GPON Port.
No association means Default values will Be used

148. 148
• Service Provisioning (The Elements)
– ONU-PROFILE: a “Class” that contain al sub elements/clases Needed to fully
specify a set of services. Profiles will be applied to a specific ONU.
– Service-ethernet: a sub “class” inside of a profile that fully specify of a
particular service (Data; VOIP or E1)
!
onu-profile <onu profile name>
service ethernet <service ID>
interface-eth 1
associate service ethernet <service id>
!
Specific “objects/variables” that fully configure that service
Service Association to a
specific Physical port

149. 149
• Access port versus trunk ports
– Same concepts than LightBolt Switches.
!
onu-profile dhcp
service ethernet 1
switchport mode access
switchport access vlan 111
service ethernet 2
switchport mode trunk
switchport trunk allowed vlan add 101-103
interface-eth 1
associate service ethernet 1
interface-eth 2
associate service ethernet 2
!
Service Ethernet for an Access port
Service Ethernet for a
Trunk port
Service Ethernet applied to specific
Physical ports

150. 150
onu-profile dhcp
service ethernet 1
tcont 1 cir 1024 pir 1024
traffic-shapping cir 3968 pir 4480
switchport mode access
switchport access vlan 111
service ethernet 2
tcont 1 cir 1024 pir 1024
traffic-shapping cir 1024 pir 1024
switchport mode trunk
switchport trunk allowed vlan add 101-103
interface-eth 1
associate service ethernet 1
interface-eth 2
associate service ethernet 2
 Define the CIR and PIR for up stream flow
 Define the CIR and PIR for down stream flow
 Define the CIR and PIR for up stream flow
 Define the CIR and PIR for down stream flow
All VLANs on the Same TCON
And GEM port will be “shaped”
• T-CONTs and GEM ports traffic shaping configuration.

151. 151
TCONT
GEM
PORT
CE-VLAN
CE-VLAN
CE-VLAN
Trunkport
Service
Ethernet
CE-VLAN
CE-VLAN
CE-VLAN
GEM
Port
UpDown
service ethernet 2
tcont 1 cir 1024 pir 1024
traffic-shapping cir 1024 pir 1024
switchport mode trunk
switchport trunk allowed vlan add 101-103
interface-eth 2
associate service ethernet 2

152. 152
• T-CONTs and GEM ports traffic shaping configuration.
onu-profile dhcp
service ethernet 1
tcont 1 cir 1024 pir 1024
traffic-shapping cir 3968 pir 4480
switchport mode access
switchport access vlan 111
service ethernet 2
tcont 3 cir 1024 pir 1024
traffic-shapping cir 1024 pir 1024
switchport mode trunk
switchport trunk allowed vlan add 101-103
service ethernet 3
tcont 2 cir 1024 pir 1984
traffic-shapping cir 1024 pir 1984
switchport mode trunk
switchport trunk allowed vlan add 104-108
interface-eth 1
associate service ethernet 1
interface-eth 2
associate service ethernet 2
associate service ethernet 3
“N” VLANs mapped to a TCON and a
GEM port. Shaped and policed to a
Specific BW value
“M” VLANs mapped to a TCON and a
GEM port. Shaped and policed to a
specific BW value
Service 2 and 3 applied to the same
physical interface

153. 153
Trunkport
TCONT
GEM
PORT
CE-VLAN
CE-VLAN
CE-VLAN
TCONT
GEM
PORT
CE-VLAN
CE-VLAN
CE-VLAN
Service
Ethernet
Service
Ethernet
CE-VLAN
CE-VLAN
CE-VLAN
GEM
PORT
CE-VLAN
CE-VLAN
CE-VLAN
GEM
PORT
UpDown
service ethernet 2
tcont 3 cir 1024 pir 1024
traffic-shapping cir 1024 pir 1024
switchport mode trunk
switchport trunk allowed vlan add 101-103
service ethernet 3
tcont 2 cir 1024 pir 1984
traffic-shapping cir 1024 pir 1984
switchport mode trunk
switchport trunk allowed vlan add 104-108
interface-eth 2
associate service ethernet 2
associate service ethernet 3

154. 154
• IP-Host as service management interface
onu-profile dhcp
service ethernet 1
tcont 1 cir 1024 pir 1024
traffic-shapping cir 3968 pir 4480
switchport mode access
switchport access vlan 111
service ethernet 2
tcont 3 cir 1024 pir 1024
traffic-shapping cir 1024 pir 1024
switchport mode trunk
switchport trunk allowed vlan add 101-103
service ip-host vlan 55 ip address dynamic
interface-eth 1
associate service ethernet 1
interface-eth 2
associate service ethernet 2
 Configure the IP-Host service
used for management on a specific
VLAN ID. In this example
It use a dynamic DHCP client
to take its IP parameters.

155. 155
GRACIAS