Data Communications Channel (DCC)
Provisioning the DCC
To support remote operations over the DCC embedded in the SONET section overhead of the optical signal, the DCC itself must be provisioned as indicated in the following paragraphs.
DCC enable/disable
By default, the DCC is enabled on all optical ports. DCC communications can be enabled or disabled on each port independently.
DCC protection mode
The DCC protection mode is determined by the transmission protection mode assigned to each optical port (per the application parameter). The protection mode can be linear (1+1) identical, or distinct (UPSR). Linear (1+1) identical is the default for the low-speed optical ports. Support is provided for 15 low-speed OC-48 BLSRs.
The following table summarizes the DCC protection modes.
Table 5-4: DCC protection modes
|
Optical Port Protection Mode |
Shelf Slots |
Max. Number Simultaneous Optical Ports 1 |
Max. Number Simultaneous Section DCCs |
|---|---|---|---|
|
OC-12/OC-48/OC-192 UPSR |
High-speed Main slots |
1 pair (2 for OC-192) |
1 pair (2 for OC-192) |
|
OC-48/OC-192 BLSR |
1 pair (2 for OC-192) |
1 pair (2 for OC-192) | |
|
OC-12/OC-48/OC-192 Linear (1+1) |
1 pair (2 for OC-192) |
1 (2 for OC-192) | |
|
OC-12/OC-48/OC-192 Bidirectional (1+1) |
1 pair (2 for OC-192) |
1 (2 for OC-192) | |
|
OC-192/OC-48 UPSR |
Low-speed Function and Growth slots |
20 pairs |
20 pairs |
|
OC-192/OC-48 BLSR |
15 pairs |
15 pairs | |
|
OC-192/OC-48 Linear (1+1) |
20 pairs |
20 pairs | |
|
OC-192/OC-48 Bidirectional (1+1) |
20 pairs |
20 pairs | |
|
OC-192/OC-48 0x1 2 |
20 pairs |
20 pairs | |
|
OC-48 0x1Sn 2 |
20 pairs |
20 pairs | |
|
OC-12 UPSR |
60 pairs |
60 pairs | |
|
OC-12 Linear (1+1) |
60 pairs |
60 pairs | |
|
OC-12 Bidirectional (1+1) |
60 pairs |
60 pairs | |
|
OC-12 0x1 2 |
60 pairs |
60 pairs | |
|
OC-12 0x1Sn 2 |
60 pairs |
60 pairs | |
|
OC-3 UPSR |
80 pairs |
80 pairs | |
|
OC-3 Linear (1+1) |
80 pairs |
80 pairs | |
|
OC-3 Bidirectional (1+1) |
80 pairs |
80 pairs | |
|
OC-3 0x1 2 |
80 pairs |
80 pairs | |
|
OC-3 0x1Sn 2 |
80 pairs |
80 pairs |
Notes:
In this table, each optical port counted includes both a transmit and receive fiber.
0x1 mode is supported with the use of the VLF Main packs. 0x1Sn is supported when non-VLF Mains are used. Since OC-192 tributary packs are only supported with VLF mains, OC-192 0x1Sn is not supported. 0x1 is available on low-speed/tributary packs and VLF high-speed network interface packs.
User side and network side
The operation of each DCC span also depends on one end of the span being designated the "User" side and the other end being designated the "Network" side. The DCC User/Network side assignments are provisionable.
Default User/Network side values
Table 5-5: DCC default values
|
Default User/Network side values |
Optical port protection mode | ||||||
|---|---|---|---|---|---|---|---|
|
Slots |
DCC AID |
BLSR |
UPSR |
1+1 |
0x1S1 |
0x1S2 |
0x1 |
|
High-speed Main |
dcc-m1-{1-x} |
User Side |
User Side |
- |
NA |
NA |
Network Side |
|
dcc-m2-{1-x} |
Network Side |
Network Side |
- |
NA |
NA |
Network Side | |
|
dcc-m-{1-x} |
- |
- |
Network Side |
NA |
NA |
- | |
|
Low-speed Function/ Growth |
dcc-{a,b,c,d,g}1-{1-x} |
Network Side |
Network Side |
- |
Network Side |
Network Side 1 |
Network Side |
|
dcc-{a,b,c,d,g}2-{1-x} |
User Side |
User Side |
- |
Network Side 1 |
Network Side |
Network Side | |
|
dcc-{a,b,c,d,g}-{1-x} |
- |
- |
Network Side |
- |
- |
- | |
Notes:
Because DCC is disabled on the corresponding 0x1Sn inactive port, this provisioned value has no effect.
The figure below shows an example of the User and Network side designations for Alcatel-Lucent 1665 DMXs on a high-speed UPSR or BLSR.
Figure 5-5: User/Network side designation on a UPSR/BLSR
The figure below shows an example of the User and Network side designations for Alcatel-Lucent 1665 DMX on a low-speed UPSR with DDM-2000.
Figure 5-6: User/Network side designation on an OC-3/12 UPSR with DDM-2000
The figure below shows an example of the User and Network side designations for Alcatel-Lucent 1665 DMX on a low-speed OC-48 BLSR.
Figure 5-7: User/Network side designation on a low-speed OC-48 BLSR
DCC compatibility
Alcatel-Lucent 1665 DMX supports the optical interfaces with DCC communications compatibility as shown in the following table. Alcatel-Lucent 1665 DMX supports Section DCC running the OSI protocol stack and IP. The “1+1” entries represent linear and bidirectional (1+1) protected DCC compatibility.
Table 5-6: DCC compatibility
|
Product |
Optical interfaces supported |
Alcatel-Lucent 1665 DMX | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
High-speed main slots OC-N |
Low-speed function and growth slots OC-N | |||||||||
|
192 |
48 |
12 |
3 |
192 |
48 |
12 |
3 | |||
|
1665 DMX |
High-speed |
OC-192 |
UPSR/ BLSR/ 1+1/ 0x1 |
UPSR/ BLSR/ 1+1/ 0x1 |
||||||
|
OC-48 |
UPSR/ BLSR/ 1+1/ 0x1 |
UPSR/ BLSR/ 1+1/ 0x1Sn/ 0x1 |
||||||||
|
OC-12 |
UPSR/ 1+1/ 0x1 |
UPSR/ 1+1/ 0x1Sn/ 0x1 |
||||||||
|
OC-3 |
UPSR/ 1+1/ 0x1Sn/ 0x1 |
UPSR/ 1+1/ 0x1Sn/ 0x1 | ||||||||
|
Low- speed |
OC-192 |
UPSR/ BLSR/ 1+1/ 0x1 |
UPSR/ BLSR/ 1+1/ 0x1 |
|||||||
|
OC-48 |
UPSR/ BLSR/ 1+1/ 0x1 |
UPSR/ BLSR/ 1+1/ 0x1Sn/ 0x1 |
||||||||
|
OC-12 |
UPSR/ 1+1/ 0x1 |
UPSR/ 1+1/ 0x1Sn/ 0x1 |
||||||||
|
OC-3 |
UPSR/ 1+1/ 0x1 |
UPSR/ 1+1/ 0x1Sn/ 0x1 | ||||||||
|
1665 DMXplore |
High- speed |
OC-3 |
UPSR/ 1+1 |
UPSR/ 1+1 | ||||||
|
1665 DMXtend |
High- speed |
OC-192 |
UPSR/ 1+1/ 0x1 |
|||||||
|
OC-48 |
UPSR/ 1+1/ 0x1 |
UPSR/ 1+1/ 0x1Sn/ 0x1 |
||||||||
|
OC-12 |
UPSR/ 1+1/ 0x1 |
UPSR/ 1+1/ 0x1Sn/ 0x1 |
||||||||
|
OC-3 |
UPSR/ 1+1/ 0x1Sn/ 0x1 |
UPSR/ 1+1/ 0x1Sn/ 0x1 | ||||||||
|
Low- speed |
OC-48 |
UPSR/ 1+1/ 0x1 |
UPSR/ 1+1/ 0x1Sn/ 0x1 |
|||||||
|
OC-12 |
UPSR/ 1+1/ 0x1 |
UPSR/ 1+1/ 0x1Sn/ 0x1 |
||||||||
|
OC-3 |
UPSR/ 1+1/ 0x1 |
UPSR/ 1+1/ 0x1Sn/ 0x1 | ||||||||
|
DDM- 2000 OC-3 |
High- speed |
OC-12 |
UPSR |
UPSR/ 0x1Sn/ 0x1 |
||||||
|
OC-3 |
UPSR/ 1+1 |
UPSR/ 0x1Sn/ 0x1 | ||||||||
|
Low- speed |
OC-3 |
UPSR/ 1+1 |
1+1/ 0x1Sn/ 0x1 | |||||||
|
DDM- 2000 OC-12 |
High- speed |
OC-12 |
UPSR |
UPSR/ 0x1Sn/ 0x1 |
||||||
|
Low- speed |
OC-3 |
UPSR/ 1+1 |
1+1/ 0x1Sn/ 0x1 | |||||||
|
FiberReach |
High- speed |
OC-12 |
UPSR |
UPSR/ 0x1Sn/ 0x1 |
||||||
|
OC-3 |
UPSR/ 1+1 |
UPSR/ 0x1Sn/ 0x1 | ||||||||
|
FT-2000 ADR |
High- speed |
OC-48 |
BLSR |
BLSR/ 0x1Sn/ 0x1 |
||||||
|
Low- speed |
OC-12 |
1+1 |
1+1/ 0x1Sn/ 0x1 |
|||||||
|
OC-3 |
1+1 |
1+1/ 0x1Sn/ 0x1 | ||||||||
|
Wave-Star® TDM 2.5G/10G (2-fiber) |
High- speed |
OC-48 |
UPSR/ BLSR |
|||||||
|
Low- speed |
OC-12 |
UPSR/ 1+1 |
UPSR/ BLSR/ 1+1/ 0x1Sn/ 0x1 |
|||||||
|
OC-3 |
UPSR/ 1+1 |
1+1/ 0x1Sn/ 0x1 | ||||||||
|
WaveStar® Bandwidth Manager, Release 4.0 |
High- speed |
OC-48 |
UPSR/ BLSR |
UPSR/ BLSR/ 1+1/ 0x1Sn/ 0x1 |
||||||
|
Low- speed |
OC-12 |
UPSR/ 1+1 |
UPSR/ 1+1/ 0x1Sn/ 0x1 |
|||||||
|
OC-3 |
UPSR/ 1+1 |
1+1/ 0x1Sn/ 0x1 | ||||||||
|
Alcatel-Lucent 1675 LambdaUnite MSS |
High- speed |
OC-192 |
UPSR/ BLSR/ 1+1 |
|||||||
|
OC-48 |
UPSR/ BLSR |
UPSR/ BLSR/ 0x1Sn/ 0x1 |
||||||||
|
Low- speed |
OC-12 |
UPSR/ 1+1 |
UPSR/ 1+1/ 0x1Sn/ 0x1 |
|||||||
|
OC-3 |
UPSR/ 1+1 |
1+1/ 0x1Sn/ 0x1 | ||||||||