Allowable cross-connections
Overview
Alcatel-Lucent 1665 DMX utilizes several types of SONET, DSn/Electrical, and Ethernet cross-connections, including:
Note:
This section summarizes the supported cross-connections. For the complete matrix, see Appendix E in Alcatel-Lucent 1665 Data Multiplexer (DMX) TL1 Message Details, 365-372-306.
Add/drop
All connections from a high-speed interface to a low-speed interface are considered add/drop. An add/drop cross-connection is bidirectional cross-connection between a high speed interface and a low speed interface. Alcatel-Lucent 1665 DMX also supports unidirectional add and drop cross-connections. A signal can also be add/dropped from electrical and Ethernet interfaces.
Unidirectional path switched ring (UPSR)
A UPSR is self-healing ring configuration in which traffic is sent onto both rotations (both fibers) of the ring in opposite directions. "Path-switched" means that if the working signal fails, the path switches to the protection signal. UPSRs operate in an integrated, single ended fashion- negating the need for complex network-level coordination in the effort to restore traffic.
Bidirectional line switched ring (BLSR)
A 2-fiber is a self-healing ring configuration in which bidirectional traffic travels over the same set of nodes in each direction. Bidirectional switching makes use of redundant (protection) bandwidth on the bidirectional lines that interconnect the nodes in the ring to provide protection for traffic carried on the working bandwidth. Because the traffic is bidirectional, a single circuit does not necessarily consume bandwidth on every span in the ring. This leaves the spans between other nodes available for additional traffic. Therefore, with distributed switching patterns, a BLSR can carry more traffic than the same facilities could carry if configured for a unidirectional path-switched ring.
0x1Sn
0x1Sn is not supported when Alcatel-Lucent 1665 DMX is equipped with VLF Main packs (LNW59/LNW82/LNW504). VLF Main packs are required to make true 0x1 cross-connections available.
With 0x1Sn, the OC-n 0x1 provisioning and alarming capability provides the user with a method of provisioning a LS OC-n port in one slot of a slot pair to operate as an unprotected interface. Cross-connections to 0x1Sn ports are provisioned using the ring channel AIDs corresponding to the active side/port. The inactive port, if equipped, always outputs STS1 UNEQ or AIS-P on all tributaries, as a function of the system default idle signal provisioning.
Cross-connections are supported between 0x1Sn ports and all other interface types. For DHA applications, 1WAYPR and 1WAY cross-connections between a 0x1Sn port to a UPSR ring channel are required. Cross-connections supported at all rates supported by the LS OC-n port. Multipoint and unswitched cross-connections to 0x1Sn interfaces are not supported.
Figure 6-6, Two-way add/drop, unswitched, and 0x1Sn shows high-level schematics of two-way add/drop, unswitched, and 0x1Sn cross-connections.
Figure 6-6: Two-way add/drop, unswitched, and 0x1Sn
True 0x1
The VLF Main packs (LNW59/LNW82/LNW504), Alcatel-Lucent 1665 DMX support true 0x1 unprotected circuit packs. That means that any slot can be equipped with any pack (some restrictions apply). Two of the same circuit packs can also populate adjacent slots in the same group (this includes some Ethernet packs). For detailed information on circuit pack/slot equipage restrictions in 0x1 mode, see Very large fabric (VLF) engineering rules.
In the case of SONET packs, all ports in a pack must be set to 0x1 application in order for a different pack to be used in the companion slot. If any pair of lines is provisioned for a protected application (1+1, UPSR, BLSR), then both packs in the group must be of the same type.
True 0x1 replaces 0x1Sn functionality when VLF Mains are used. True 0x1 supports all the capabilities 0x1Sn allow, but adds the capability for both slots of a single group to function independently. 0x1Sn is still supported when the shelf is equipped with non-VLF Mains. True 0x1 is available on the low-speed/tributary packs, and on VLF Main (M1/M2) interfaces.
When two circuit packs in the same low-speed group are operating in 0x1 mode, all provisioning, reporting and retrieval (of alarms) associated with the pack, ports and tributaries in Slot 1 are independent of the provisioning, reporting and retrieval associated with the pack, ports and tributaries in Slot 2.
When provisioned for 0x1 operation, the affect on service and severity of alarms issued against a pack in Slot 1 of a particular group are independent from the affect on service and the severity of the alarms issued against the pack in Slot 2 of that group.
When Alcatel-Lucent 1665 DMX is equipped with VLF Mains, all 1-way cross-connections supported on an unprotected port/line (including ports/lines on an unprotected pack) in one slot of a group can be supported independently and simultaneously on an unprotected port/line in either slot of a Function or Growth group. 1-waypr cross-connections are not allowed to be sourced from 0x1 interfaces.
True 0x1 enables hairpin cross-connections between channels on packs in different slots of the same group.
Pass-through
A pass-through cross-connection is made between two ring interfaces in the same MAIN or Function Unit group, allowing the signal to be "passed-through" a ring node on the same time slot.
The figure below shows a pass-through cross-connection on the high-speed interface (OC-12, OC-48, or OC-192).
Figure 6-7: Pass-through cross-connection on high-speed interface
Low-speed pass-throughs
Alcatel-Lucent 1665 DMX can host multiple rings on the low-speed interfaces of the Alcatel-Lucent 1665 DMX shelf. This is accomplished by intra-function group, pass-through cross-connections. Alcatel-Lucent 1665 DMX can close a low-speed ring by supporting a cross-connection between a receive port on one circuit pack and a transmit port on another circuit pack in the same function or growth group. All protection switching advantages/capabilities still apply in VT and STS-n Ring Closure applications. When VLF Main packs are used, all cross-connect switching occurs on the main packs, including low-speed, tributary pass-through cross-connects. This means that the line depicting the pass-through cross-connect in the figure below would have to extend out of the tributary packs, up into the MAIN switch fabric at the top of the figure when VLF Mains are used.
Figure 6-8: Pass-through hairpin
SONET hairpinning cross-connections
If VLF Main packs are used in “hairpinning” topologies, all cross-connect and switching functions are centralized on the Main pack. Switching within the fabrics on the tributary (low-speed) OLIUs is disabled and traffic is routed directly to the STS fabric on the Mains, bypassing any VT fabric on the tributary OLIUs. When VLF Main packs are not used, tributary (low-speed) traffic is routed into the system and back out without ever being placed on high-speed (OC-12, OC-48 or OC-192) interfaces. In addition, in systems with non-VLF mains, VT cross-connections on the LNW45 and LNW49 are optimized to minimize the VT fabric usage on the main packs. For example, hairpins between different VTs on an LNW45 or LNW49 are routed using only the VT fabric on the LNW45 or LNW49, and thus do not consume any VT resources on the main packs.
Alcatel-Lucent 1665 DMX is capable of connecting any input on a circuit pack in a function or growth slot to any output in the same group (known as inter-fn hairpin). Alcatel-Lucent 1665 DMX also supports intra-port hairpins, by which Alcatel-Lucent 1665 DMX can hairpin between different tributaries on the same port.
When VLF Main circuit packs are not installed, hairpin cross-connections to 0x1Sn interfaces are supported. When VLF Main circuit packs are installed, hairpin cross-connections between unprotected ports on different slots of the same low-speed group are supported. Certain restrictions apply, see Very large fabric (VLF) engineering rules.
These flexible cross-connect capabilities allow you to use a combination of add/drop and hairpinning of compatible payloads through a variety of interfaces.
Alcatel-Lucent 1665 DMX supports intra-function group, hairpin cross-connections that are cross-connections between different tributaries on different ports within the same function group. Intra-port hairpins are cross-connections between channels hosted by the same physical port of the Alcatel-Lucent 1665 DMX shelf. These intra-port hairpins are only supported on 1+1 protected interfaces.
The figure below shows some of the various SONET hairpinning schemes.
Figure 6-9: SONET hairpinning
Portless mode hairpin cross-connections (LNW20)
When operating in portless mode, LNW20 pulls DS1s from channelized DS3 signals that enter Alcatel-Lucent 1665 DMX on a SONET STS-1 interface (on another pack) and converts them to VT mapped STS-1s. This VT-mapped STS-1 is cross-connected at the VT level in the Main packs (at least one side of the cross-connect is OCn/EC1) to any interface that supports the signal structure today (DS1, channelized DS3, EC1, optical). For portless functionality, incoming STS-1s must contain a channelized DS3. This STS-1 is cross-connected to the LNW20 and then hairpinned to the STS fabric on the Main pack. Once the signal is finally converted to a VT1.5 it can be cross-connected to any port that accepts that signal format.
Multi-point (Ethernet only)
The data-specific multi-point cross-connect is a bidirectional cross-connection between two STS-1 Virtual Concatenation Group (VCG) on 100/1000BASE-X/T and ports to two different ring interfaces (UPSR or BLSR with NUT provisioning).
The figure below shows Ethernet Multipoint cross-connection schematic.
Figure 6-10: Ethernet multi-point cross-connection
Ethernet hairpining cross-connections
With Ethernet-to-Ethernet hairpinning, traffic may travel from one Ethernet port on a circuit pack in one set of slots, to another port on a circuit pack in a different set of slots (from A1 to C1 or A2 to C2, for example). From there, the traffic may be multiplexed with other packet traffic before being switched onto another Ethernet or SONET interface.
In shelves equipped with VLF Mains (LNW59/LNW82/LNW504), hairpins between 0x1 compatible Ethernet packs located in Slot 1 and Slot 2 of the same group are also supported. For detailed information regarding 0x1 circuit pack compatibility, see Very large fabric (VLF) engineering rules.
The figure below shows some of the high-level schematics of Ethernet hairpinning cross-connections.
Figure 6-11: Ethernet hairpinning
Important!
Ethernet hairpins to BLSR interfaces are also supported.
Multi-point Ethernet combinations
Multi-point Ethernet cross-connections are supported from Ethernet ports, to ports provisioned for UPSR or BLSR with NUT only. In much the fashion as shown in the figure below, the Alcatel-Lucent 1665 DMX supports Multi-point Ethernet cross-connections between the following combinations of interfaces:
-
OC-3/12/48/192 MAIN OLIUs & one 100/1000BASE-X/T interface (A–G)
-
OC-3/12/48/OC192 OLIU (A–G) & one 100/1000BASE-X/T interface (A–G)
Figure 6-12: Multi-point combinations
Ethernet circuit pack capacities summary
The table below details various characteristics of the Ethernet and FC-DATA (SAN) circuit packs. The table covers the rate, transport format (PL or Switched), differential delay, frame size, LCAS capability, OSP capability as well as the number, format and capacity of VCGs supported by each Ethernet circuit pack.
Table 6-12: Ethernet circuit pack capacities summary part 1
|
Pack |
Rate (# of ports) |
PL or Switched |
VCG Ports |
VCG Format and Capacity (Max # of tributaries per VCG) 1 | |||||
|---|---|---|---|---|---|---|---|---|---|
|
VT1.5- xv |
STS-1 |
STS-1- xv |
STS-3c |
STS-3c- xv |
STS-12c | ||||
|
LNW63 1G SX/LX/ ZX PL |
1000BASE-T, 1000BASE-X (4) |
PL |
4 |
- |
1 |
21 |
1 |
7 |
1 |
|
LNW64 1G SX/LX/ ZX PL |
1000BASE-T, 1000BASE-X (8) |
PL |
8 |
- |
1 |
21 |
1 |
7 |
1 |
|
LNW66 10/100 T |
100BASE-T (24) |
Switched |
2 |
- |
- |
21 |
- |
- |
- |
|
LNW73/ 73C FC-DATA (SAN) |
FC-1G/FICON (4) or ESCON (4) |
PL |
4 |
- |
48 FC -FICON 6 ESCON |
- |
12 FC- FICON 2 ESCON |
- |
1 FC -FICON |
|
LNW74 10/100 T/F |
100BASE-T (16) 100BASE-ZX/LX/FX (8 PTM) |
PL |
24 |
63 |
1 |
3 |
1 |
- |
- |
|
LNW87 FE/GBE PL |
100BASE-ZX/LX/FX (4 PTM) |
PL |
4 |
- |
1 |
21 |
1 |
7 |
1 |
|
1000BASE-SX/LX/ZX/ (4 PTM) |
- |
1 |
3 |
1 |
- |
- | |||
|
LNW170 100/1G FS 2 |
100BASE-ZX/LX/FX/T (4 PTM) 1000BASE-SX/LX/ZX/T (4 PTM) |
PL / Switched |
1–2 |
- |
1 |
48 |
1 |
16 |
1 |
|
3–28 |
- |
1 |
32 |
1 |
10 |
1 | |||
|
29–32 |
- |
1 |
10 |
1 |
3 |
- | |||
Notes:
Every pack other than the LNW64, supports a maximum of 2.5G (48 STS-1) between any function slot and the backplane, double (5G) with multipoint cross-connections. The LNW64 has a maximum backplane capacity of 10G (192 STS-1s).
VCG 1–2 can support up to 48 STS1s or 16 STS3cs for a 2.5G. VCG 3–28 support up to 32 STS1s or 10 STS3cs. VCG 29–32 support up to 10 STS1s or 3 STS3cs.
Table 6-13: Ethernet circuit pack capacities summary part 2
|
Pack |
Slots where packs can reside |
Backplane Capacity |
Differential Delay (ms) |
LCAS Support |
Maximum Frame Size |
OSP |
|---|---|---|---|---|---|---|
|
LNW63 GbE PL |
A–G |
48 STS-1s |
50 |
Y |
10240 |
Y |
|
LNW64 GbE PL |
A–G |
168 STS-1s |
108 |
Y |
10240 |
Y (optical PTM/SFPs only) |
|
LNW66 10/100 T |
A–D |
21 STS-1s |
16 |
- |
1536 |
- |
|
LNW73/73C FC-DATA (SAN) |
A–G |
38 STS-1s |
120 |
Y 1 |
2160 2 |
- |
|
LNW74 10/100 T/F |
A–G |
48 STS-1s 63 VT1.5s |
64 |
Y |
9632 |
Y |
|
LNW87 FE/GBE PL |
A–G |
84 STS-1s |
50 |
Y |
10222 |
Y |
|
LNW170 100/1G FS |
A–G |
48 STS-1s |
50 |
Y |
10240 |
- |
Notes:
Ethernet circuit pack capacities for ring configurations
The table below details the allowable Ethernet-related ring configurations (Ethernet applications within UPSR and BLSR topologies) and the number of these configurations that may be supported by each Ethernet circuit pack in Alcatel-Lucent 1665 DMX.
Important!
Capacities for each configuration are available in the later of the release numbers shown at the left of the row and the top of the column.
For more information, see Packet rings, Ethernet Private Line, and Ethernet rate control services, in Chapter 3, Applications and configurations.
Table 6-14: Ethernet circuit pack capacities for ring configuration
|
Config |
Release |
Circuit Packs | |||||
|---|---|---|---|---|---|---|---|
|
1000 Mbps (GbE-PL) (4-port/ 8-port) |
10/100 Mbps (FE-BPR) |
10/100 Mbps (FE-EPL)/ 1000 Mbps (GbE-PL) |
10/100 Mbps (FE-EPL) |
10/100/ 1000 Mbps (FE/ GbE- BPR) |
10/100/ 1000 Mbps (FE/ GbE- EoS) | ||
|
Packet Rings on UPSRs |
1.1 |
2/4 |
1 |
0 |
0 |
16 |
1 |
|
Packet Rings on BLSRs 1 |
2.1 |
2/4 |
0 |
0 |
0 |
16 |
- |
|
Packet Rings on BLSRs w/ NUT |
3.0 |
2/4 |
1 |
0 |
0 |
16 |
1 |
|
PL on UPSR w/ UPSR protection |
1.1 |
2/4 |
1 |
16–24 |
16–24 |
16–32 |
6 |
|
PL on UPSR w/out UPSR protection |
1.1 |
2/4 |
2 |
16–24 |
NA |
16–32 |
6 |
|
PL on BLSR |
2.1 |
2/4 |
1 |
16–24 |
16–24 |
16–32 |
6 |
|
EPL on BLSR w/ NUT |
3.0 |
2/4 |
2 |
16–24 |
16–24 |
16–32 |
6 |
|
BPR= Basic Packet Ring | |||||||
|
EPR= Enhanced Packet Ring (w/ rate control) | |||||||
|
EPL= Ethernet Private Line (point-to-point) PL= Private Line (point-to-point) | |||||||
|
FE= Fast Ethernet (10/100 Mbps) GbE= Gigabit Ethernet (1000 Mbps) | |||||||
|
FC-DATA= SAN card (FICON/ESCON/FC) | |||||||
Notes:
Each span of the packet ring has BLSR protection. It is not necessary to "close" the packet ring on a BLSR: BLSR protection is provided on each span, so spanning tree protection is unnecessary. Capacity on one span of the BLSR can be used for other purposes.
The number of EPL cross-connections on the LNW74 is relative to the slot in which the circuit pack is housed and not the cross-connection rate. 24 VCGs are provisionable in slots A–D. 8 VCGs are provisionable in slot G.
Allowable UPSR add-drop cross-connections
The table below contains a list of UPSR add-drop cross-connections supported by Alcatel-Lucent 1665 DMX. The cross-connections in the table below are all drop cross-connections.
Note:
In UPSR networks with more than 2 nodes, mixing VT and STS add/drops in the same circuit can lead to cases where individual VT defects are not protected at the STS-1 add/drop node. If you are provisioning VT add/drops, both ends of the add/drop circuit should be VT1.5 cross-connects; mixing VT add/drops and STS-1 add/drops in a multi-node UPSR is not recommended.
Important!
With atomic cross-connects, all cross-connections are one-way. For cross-connects not involving UPSR interfaces, the same 1-way cross-connects are supported in the opposite direction to provide two-way connectivity.
The LNW59, LNW82, and LNW504 VLF Main circuit packs make true 0x1 cross-connections and shelf equipage possible. When the VLF Main pack is used, the shelf does not support 0x1Sn cross-connections, or the LNW7 circuit pack. In shelves equipped with VLF Mains, unprotected (linear) UPSR cross-connections are also supported. Unprotected UPSR cross-connections are independent cross-connections to or from the companion UPSR tributaries. For these reasons, the capabilities of the shelf when equipped with the VLF Main packs are listed separately.
In the "To" column of the table below, "TransMUX" includes the LNW18 and LNW20 in both ported and portless mode.
Table 6-15: Allowable UPSR add-drop cross-connections
|
From |
To | |
|---|---|---|
|
VLF Main (LNW59/LNW82/LNW504) OLIU (UPSR) 1 | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1), OC-48/192 (BLSR), 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1), 100BASE-X/T (LNW74 only) | |
|
1-way unswitched STS-n--------> |
OC-3/12/48/192 (UPSR), OC-48/192 BLSR w/ NUT, 100/1000BASE-X/T (no LNW74) | |
|
1-way unswitched VT1.5--------> |
OC-3/12/48/192 UPSR | |
|
1-waypr STS-n -------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1), OC-48 (BLSR), 100/1000BASE-X/T FC-DATA | |
|
1-waypr VT1.5 --------------------> |
DS1, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1), 100BASE-X/T (LNW74 only) | |
|
Non-VLF OC-192 OLIU (UPSR) | ||
|
1-way STS-n ---------------------> |
DS1, DS3, OC-3/12/48 (0x1Sn) | |
|
1-way VT1.5--------> |
DS1, OC-3/12/48 (0x1Sn) | |
|
1-way unswitched STS-n--------> |
OC-3/12/48 (UPSR), OC-48 BLSR w/ NUT, 100/1000BASE-X/T | |
|
1-way unswitched VT1.5--------> |
OC-3/12/48 UPSR | |
|
1-waypr STS-n -------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48 (1+1, 0x1Sn, UPSR), OC-48 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-waypr VT1.5 --------------------> |
DS1, EC-1, TransMUX, OC-3/12/48 (0x1Sn, 1+1 and UPSR), 100BASE-X/T (LNW74 only) | |
|
Non-VLF OC-48 High-Speed OLIU (UPSR) | ||
|
1-way STS-n ---------------------> |
DS1, DS3, OC-3/12/48 (0x1Sn) | |
|
1-way VT1.5--------> |
DS1, OC-3/12/48 (0x1Sn) | |
|
1-way unswitched STS-n--------> |
OC-3/12/48 (UPSR), OC-48 BLSR w/ NUT, 100/1000BASE-X/T | |
|
1-way unswitched VT1.5--------> |
OC-3/12/48 UPSR | |
|
1-waypr STS-n -------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48 (1+1, 0x1Sn, UPSR), OC-48 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-waypr VT1.5 --------------------> |
DS1, EC-1, TransMUX, OC-3/12/48 (0x1Sn, 1+1 and UPSR), 100BASE-X/T (LNW74 only) | |
|
Non-VLF OC-12 High-Speed OLIU (UPSR) | ||
|
1-way STS-n ---------------------> |
DS1, DS3, OC-3/12/48 (0x1Sn) | |
|
1-way VT1.5--------> |
DS1, OC-3/12/48 (0x1Sn) | |
|
1-way unswitched STS-n--------> |
OC-3/12/48 (UPSR), OC-48 BLSR w/ NUT, 100/1000BASE-X/T | |
|
1-way unswitched VT1.5--------> |
OC-3/12/48 UPSR | |
|
1-waypr STS-n -------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48 (1+1, 0x1Sn, UPSR), OC-48 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-waypr VT1.5 --------------------> |
DS1, EC-1, TransMUX, OC-3/12/48 (0x1Sn, 1+1 and UPSR), 100BASE-X/T (LNW74 only) | |
Notes:
Because VLF Mains are multi-port packs, cross-connections between different ports on the same Main are possible when they are used. All of the cross-connect types listed in the left column are supported between VLF ports.
Important!
In systems equipped with non-VLF main, 1way cross-connects FROM UPSR to E1, TMUX or Ethernet/Data interfaces are not supported. In systems equipped with VLF mains 1way cross-connections from a UPSR are supported to all interfaces.
Allowable 1+1 add-drop cross-connections
The table below contains a list of linear/bidirectional (1+1) add-drop cross-connections supported by Alcatel-Lucent 1665 DMX. The cross-connections in the table below are all drop cross-connections.
Important!
Alcatel-Lucent 1665 DMX uses atomic cross-connects, all cross-connections are one-way. For cross-connects not involving UPSR interfaces, the same 1-way cross-connects are supported in the opposite direction to provide two-way connectivity.
Table 6-16: Allowable 1+1 add-drop cross-connections
|
From |
To | |
|---|---|---|
|
VLF Main (LNW59/LNW82/LNW504) OLIU (1+1) 1 | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1), OC-48 (BLSR), 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1), 100BASE-X/T (LNW74 only) | |
|
Non-VLF Main OC-192 OLIU (1+1) | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48 (1+1, 0x1Sn, UPSR), OC-48 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, EC-1, TransMUX, OC-3/12/48 (1+1, 0x1Sn, UPSR), 100BASE-X/T (LNW74 only) | |
|
Non-VLF OC-48 High-Speed OLIU (1+1) | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48 (1+1, 0x1Sn, UPSR), OC-48 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, TransMUX, OC-3/12/48 (1+1, 0x1Sn, UPSR), and 100BASE-X/T | |
|
Non-VLF OC-12 High-Speed OLIU (1+1) | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48 (1+1, 0x1Sn, UPSR), OC-48 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, TransMUX, OC-3/12/48 (1+1, 0x1Sn, UPSR), and 100BASE-X/T | |
Notes:
Because VLF Mains are multi-port packs, cross-connections between different ports on the same Main are possible when they are used. All of the cross-connect types listed in the left column are supported between VLF ports.
Allowable BLSR add-drop cross-connections
The table below contains a list of BLSR add-drop cross-connections supported by Alcatel-Lucent 1665 DMX. The cross-connections in the table below are all BLSR drop cross-connections.
Important!
With atomic cross-connects, all cross-connections are one-way. For cross-connects not involving BLSR interfaces, the same 1-way cross-connects are supported in the opposite direction to provide two-way connectivity.
Table 6-17: Allowable BLSR add-drop cross-connections
|
From |
To | |
|---|---|---|
|
VLF Main (LNW59/LNW82/LNW504) OLIU (BLSR) 1 | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1), OC-48/192 (BLSR), 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1), 100BASE-X/T (LNW74 only) | |
|
1-way unswitched STS-n--------> |
OC-3/12/48/192 (UPSR), 100/1000BASE-X/T | |
|
1-way unswitched VT1.5--------> |
OC-3/12/48/192 UPSR | |
|
Non-VLF OC-192 High-Speed OLIU (BLSR) | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48 (1+1, UPSR, 0x1Sn), OC-48 (BLSR), 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, EC-1, TransMUX, OC-3/12/48 (1+1, UPSR, 0x1Sn), 100BASE-X/T (LNW74 only) | |
|
1-way unswitched STS-n--------> |
OC-3/12/48 (UPSR), 100/1000BASE-X/T | |
|
1-way unswitched VT1.5--------> |
OC-3/12/48 UPSR | |
|
Non-VLF OC-48 High-Speed OLIU (BLSR) | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48 (1+1, 0x1Sn, UPSR), OC-48 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, EC-1, TransMUX, OC-3/12/48 (1+1, 0x1Sn, UPSR), 100BASE-X/T (LNW74 only) | |
|
1-way unswitched STS-n--------> |
OC-3/12/48 (UPSR), 100/1000BASE-X/T | |
|
1-way unswitched VT1.5--------> |
OC-3/12/48 UPSR | |
Notes:
Because VLF Mains are multi-port packs, cross-connections between different ports on the same Main are possible when they are used. All of the cross-connect types listed in the left column are supported between VLF ports.
Allowable UPSR and BLSR pass-through cross-connections (high-speed interface)
Alcatel-Lucent 1665 DMX supports direct pass-through cross-connections from a particular time slot on one side of a UPSR to/from the same time slot on the other side of the ring. BLSR pass-through cross-connections function in the same manner. Pass-through cross-connections are available at the same rates as add/drop cross-connections.
Allowable hairpin cross-connections
The table below contains a list of hairpin cross-connections supported by Alcatel-Lucent 1665 DMX. The cross-connections in the table below are all Hairpin cross-connections.
Table 6-18: Allowable hairpin cross-connections
|
From |
To | |
|---|---|---|
|
OC-3/12/48/192 (1+1) | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1, 0x1Sn), OC-48/192 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1, 0x1Sn), 100BASE-X/T (LNW74 only) | |
|
OC-3/12/48 (UPSR) (non-VLF Mains) | ||
|
1-way STS-n ---------------------> |
DS1, DS3, EC-1, TransMUX, OC-3/12/48 (UPSR), 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, OC-3/12/48 ( 0x1Sn) | |
|
1-way unswitched STS-n--------> |
OC-3/12/48 (UPSR), 100/1000BASE-X/T (no LNW74) | |
|
1-way unswitched VT1.5--------> |
OC-3/12/48 UPSR | |
|
1-waypr STS-n -------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48 (1+1, UPSR, 0x1, 0x1Sn), OC-48 BLSR w/NUT, 100/1000BASE-X/T, FC-DATA | |
|
1-waypr VT1.5 --------------------> |
DS1, EC-1, TransMUX, OC-3/12/48 (1+1, UPSR, 0x1, 0x1Sn), 100BASE-X/T (LNW74 only) | |
|
OC-3/12/48/192 (UPSR) (VLF Mains) | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1), OC-48/OC-192 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1), 100BASE-X/T (LNW74 only) | |
|
1-way unswitched STS-n--------> |
OC-3/12/48/192 (UPSR), OC-48/OC-192 BLSR w/ NUT, 100/1000BASE-X/T | |
|
1-way unswitched VT1.5--------> |
OC-3/12/48/192 UPSR | |
|
1-waypr STS-n -------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48/192 (1+1, 0x1, UPSR), OC-48/OC-192 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-waypr VT1.5 --------------------> |
DS1, EC-1, TransMUX, OC-3/12/4/192 (0x1, 1+1 and UPSR), 100BASE-X/T (LNW74 only) | |
|
OC-3/12/48/192 (0x1) (requires LNW59/LNW82/LNW504 VLF Main) | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48/192 (UPSR, 1+1, 0x1) and OC-48/OC-192 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1), 100BASE-X/T (LNW74 only) | |
|
OC-3/12/48 (0x1Sn) (non-VLF Mains only) | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48 (UPSR, 1+1, 0x1Sn) and OC-48 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, EC-1, TransMUX, OC-3/12/48 (1+1, UPSR, 0x1Sn), 100BASE-X/T (LNW74 only) | |
|
OC-3/12/48 Low-Speed OLIU (0x1) (requires LNW59/LNW82/LNW504 VLF Main) | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48/192 (UPSR, 1+1, 0x1) and OC-48/OC-192 BLSR, 100/1000BASE-X/T, FC-DATA | |
|
1-way VT1.5--------> |
DS1, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1), 100BASE-X/T (LNW74 only) | |
|
OC-48 Low-Speed OLIU (BLSR) (non-VLF Mains) | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48 (1+1, UPSR, 0x1sn), OC-48 (BLSR), 100/1000BASE-X/T, FC-DATA | |
|
1-way unswitched STS-n--------> |
OC-3/12/48 (UPSR), 100/1000BASE-X/T | |
|
OC-48/192 Low-Speed OLIU (BLSR) (VLF Mains) | ||
|
1-way STS-n ---------------------> |
DS1, E1, DS3, EC-1, TransMUX, OC-3/12/48/192 (1+1, UPSR, 0x1, and 0x1Sn), OC-48/OC-192 (BLSR), 100/1000BASE-X/T, FC-DATA | |
|
1-way unswitched STS-n--------> |
OC-3/12 (UPSR), 100/1000BASE-X/T | |
|
100-FEPL (Private Line) 1 | ||
|
1-way STS-n ---------------------> |
1000BASE-X/T | |
|
TransMUX (LNW18 and LNW20) 1 | ||
|
1-way STS-n ---------------------> |
DS1, TransMUX | |
|
1-way VT1.5 -------> |
DS1, TransMUX | |
|
DS1/E1 1 | ||
|
1-way STS-n ---------------------> |
DS1/E1, TransMUX | |
|
1-way VT1.5 -------> |
DS1/E1, TransMUX | |
|
DS3 1 | ||
|
1-way STS-n ---------------------> |
DS3 | |
|
EC-1 1 | ||
|
1-way STS-n ---------------------> |
EC-1, DS1, TransMUX | |