Huawei Optix OSN 8800 Release 5.51.07.36 and Optix OSN 1800 Release 5.67.03.22 - part 2
The following Optix OSN 1800 Muxponder card types are qualified:
- TNF2LQM2: 8 client port, 2 (2.7 Gbps) line port muxponder module
- TNF2ELOMA: 8 client port, 2 (10 Gbps) line port muxponder module
Optical Filter Modules
The Optical Filter Modules are optical components that combine (multiplex) or separate
(demultiplex) multiple optical signals onto a fiber link.
The reconfigurable optical add-drop multiplexer (ROADM) allows adding or dropping of
optical signals at the wavelengths layer without an optical-electrical-optical conversion in
multiple directions in an optical cross-connect system.
The Optix OSN 8800 and Optix OSN 1800 supports a series of optical filter modules that
can multiplex or demultiplex signals onto a fiber pair for transmission between sites.
Optical filter modules are used in a tiered arrangement to multiplex or demultiplex groups
of client channels on a fiber link for transmission between sites.
Optical Amplifier (OA)
The OA module provides in-line optical amplification of multiple ITU-specific wavelengths
within a fiber. For particular extended distances, the use of these OAs might be required.
Dispersion Compensation Unit (DCU)
The DCU provides compensation to chromatic dispersion fiber impairment, which causes
signal degradation and limits the transmission distance.
The following Optix OSN 8800 and Optix OSN 1800 DCU type is qualified:
- FBG-DCM:2 Dispersion compensation module based on Fiber Bragg Grating
Delay calculation for timing links: OAs and DCUs contain significant lengths of fiber,
which must be included in the differential delay calculation for timing links.
Protection Switch Module (PSM)
The Optix OSN 8800 supports optically switched fiber protection for point-to-point DWDM
links with the use of the PSM. The PSM protects site-to-site traffic from physical damage
to a fiber or fiber pair by switching bidirectionally to a redundant fiber pair.
The TN12DCP: OLP fiber protection switch a qualified PSM type of Optix OSN 8800
(supported for use with STP links).
Topologies and protection schemes
System z qualifies a two-site point-to-point DWDM network topology and protection against
failures in site-to-site fiber links or failures in individual components within the DWDM network
for GDPS. GDPS is a high-availability solution that can use several protection schemes.
Some restrictions apply for particular protocols, for example, Sysplex Timer (ETR and CLO),
and STP (ISC-3 Peer Mode and PSIFB LR) links.
2 This DCU is qualified for STP.
Huawei Optix OSN 8800 Release 5.51.07.36 and Optix OSN 1800 Release 5.67.03.22
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Important: Protection schemes must guarantee the correct differential delay for individual
timing links:
STP links must not exceed the equivalent of 900 meters differential delay between the
transmit and receive paths of the link.
ETR and CLO links must not exceed the equivalent of 10 meters differential delay
between the transmit and receive paths of the link.
Protection schemes
The Optix OSN 8800 and Optix OSN 1800 platforms provides the following protection
schemes:
Unprotected
An unprotected transponder or Muxponder card is connected to one client interface and to
one site-to-site fiber link only. A failure of the transponder or Muxponder card or the
site-to-site fiber link results in a loss of client communications.
Client-based protection
Client-based protection uses at least two client interfaces that are connected to the
DWDM. These interfaces are arranged so that the transponder or Muxponder cards that
connect the two sites are distributed over two diverse site-to-site fiber links. The client
device is responsible for ensuring that a failure of a DWDM module or of a single
site-to-site fiber link does not result in a total loss of client communications.
GDPS timing links (ETR, CLO, and STP) are qualified for use in a client-based protection
scheme if they are using separate paths (routes).
Diagram components: For simplicity, several of the components in the optical path are
not shown in the diagrams in this section.
Figure 5 shows a high-level view of the client-based protection scheme. In this case, a
client device has two separate site-to-site connections: one through Card A and the other
through Card B. Transponder card-based and Muxponder card-based schemes for the
Optix OSN 8800 and Optix OSN 1800 are shown separately.
Route #1
Transponder A
Transponder A
Transponder B
Transponder B
Route #2
Route #1
Muxponder A
Muxponder A
Muxponder B
Muxponder B
Route #2
Figure 5 Client-based protection scheme
Optically Switched Fiber protection (Optix OSN 8800 only)
The Protection Switch Module (PSM) provides protection at the site-to-site fiber level. The
PSM protects all wavelengths that are being carried on a fiber pair simultaneously. If a
site-to-site fiber failure occurs, all traffic is switched bidirectionally to the backup link.
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Huawei Optix OSN 8800 Release 5.51.07.36 and Optix OSN 1800 Release 5.67.03.22
The PSM is only available for point-to-point DWDM network topologies.
Figure 6 shows a high-level view of the Optically Switched Fiber protection scheme.
Primary
Route #1
Card A
Protection
Protection
Card A
Switch
Switch
Module
Module
Backup
Route #2
Figure 6 Optically Switched Fiber protection
GDPS timing links (STP, ETR, and CLO) are not qualified for use with a single PSM at
each site. A single PSM-based, Optically Switched Fiber protection scheme must not be
used with GDPS or PPRC. It must be used in conjunction with the client-based
protection scheme.
If a GDPS or PPRC solution is to use Optically Switched Fiber protection, dual PSMs at
each site with four site-to-site fiber pairs (trunks) are suggested. The GDPS timing links
must connect by using separate cards and PSMs to ensure cross site connectivity is not
lost during a switch-over.
Figure 7 shows a high-level view of the dual Optically Switched Fiber protection scheme.
Primary
Route #1
Card A
Protection
Protection
Card A
Switch
Switch
Module
Module
Backup
Route #2
Backup
Route #1
Protection
Protection
Switch
Switch
Card B
Module
Module
Card B
Primary
Route #2
Figure 7 Dual Optically Switched Fiber protection
Protection scheme intermix
All protection schemes (with the exception of the TN12DCP PSM, which only part of the Optix
OSN 8800 platform) can be intermixed within the same Optix OSN 8800 and Optix OSN 1800
chassis or network on an individual client interface basis.
Huawei Optix OSN 8800 Release 5.51.07.36 and Optix OSN 1800 Release 5.67.03.22
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Interface card specifications
Table 2 lists the specifications of the qualified Optix OSN 8800 and Optix OSN 1800 interface
cards and tested protocols. For particular extended distances, the use of OAs and DCUs
might be required. For distance and link budget specifications, reference the DWDM vendor
documentation.
Table 2 Qualified client interface card details
Card type and protocol
Fiber type
Light source
Qualified distancea,b
Optix OSN 8800 modules:
TN11LOA, 8 client port, 1 (10 Gbps) line port muxponder modulec
Fibre Channel (1, 2, 4, 8 Gbps)
SM
1310 nm
200 km (124 miles)
Fibre Channel (1, 2, 4, 8 Gbps)
MM
850 nm
200 km
FICON (1, 2, 4, 8 Gbps)d
SM
1310 nm
200 km
FICON (1, 2, 4, 8 Gbps)d
MM
850 nm
200 km
ISL (1, 2, 4, 8, 10 Gbps)d
SM
1310 nm
200 km
ISL (1, 2, 4, 8, 10 Gbps)d
MM
850 nm
200 km
Gigabit Ethernet (1, 10 Gbps)e
SM
1310 nm
200 km
Gigabit Ethernet (1, 10 Gbps)e
MM
850 nm
200 km
PSIFB 1x IFB-SDR LR (2.5 Gbps)f with STP,
SM
1310 nm
100 km (62 miles)
1x IFB-DDR LR (5 Gbps)f with STP
TN12LOM, 8 client port, 1 (10 Gbps) line port muxponder modulec
Fibre Channel (1, 2, 4 Gbps)
SM
1310 nm
200 km
Fibre Channel (1, 2, 4 Gbps)
MM
850 nm
200 km
FICON (1, 2, 4 Gbps)d
SM
1310 nm
200 km
FICON (1, 2, 4 Gbps)d
MM
850 nm
200 km
ISL (1, 2, 4 Gbps)d
SM
1310 nm
200 km
ISL (1, 2, 4 Gbps)d
MM
850 nm
200 km
ISC-3 Peer Mode (1, 2 Gbps)f with STPg
SM
1310 nm
200 km
ISC-3 Compatibility Mode (1 Gbps)
SM
1310 nm
40 km (24 miles)
Gigabit Ethernet (1 Gbps)
SM
1310 nm
200 km
Gigabit Ethernet (1 Gbps)
MM
850 nm
200 km
Optix OSN 1800 modules:
c
TNF2ELOMA, 8 client port, 2 (10 Gbps) line port muxponder module
Fibre Channel (1, 2, 4, 8 Gbps)
SM
1310 nm
200 km
Fibre Channel (1, 2, 4, 8 Gbps)
MM
850 nm
200 km
FICON (1, 2, 4, 8 Gbps)d
SM
1310 nm
200 km
FICON (1, 2, 4, 8 Gbps)d
MM
850 nm
200 km
ISL (1, 2, 4, 8, 10 Gbps)d
SM
1310 nm
200 km
ISL (1, 2, 4, 8, 10 Gbps)d
MM
850 nm
200 km
Gigabit Ethernet (1, 10 Gbps)e
SM
1310 nm
200 km
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Huawei Optix OSN 8800 Release 5.51.07.36 and Optix OSN 1800 Release 5.67.03.22
Card type and protocol
Fiber type
Light source
Qualified distancea,b
Gigabit Ethernet (1, 10 Gbps)e
MM
850 nm
200 km
TNF2LQM2, 8 client port, 2 (2.7 Gbps) line port muxponder modulec
Fibre Channel (1, 2 Gbps)
SM
1310 nm
200 km
Fibre Channel (1, 2 Gbps)
MM
850 nm
200 km
FICON (1, 2 Gbps)d
SM
1310 nm
200 km
FICON (1, 2 Gbps)d
MM
850 nm
200 km
ISL (1, 2 Gbps)d
SM
1310 nm
200 km
ISL (1, 2 Gbps)d
MM
850 nm
200 km
Gigabit Ethernet (1 Gbps)
SM
1310 nm
200 km
Gigabit Ethernet (1 Gbps)
MM
850 nm
200 km
SM = single-mode fiber (9/125 micron)
MM = multimode fiber (50/125 or 62.5/125 micron)
a. Qualified distance is based on the VSC Lab test environment, which is a physical point-to-point
topology without any intermediate nodes besides OAs and DCUs.
b. Requires request for price quotation (RPQ) - 8P2263 (IBM z9® EC, z9 BC, IBM z10™ EC),
8P2340 (z10 BC, z196, z114) for distances over 100 km.
c. Protocol and wavelength support depend on a pluggable client interface transceiver.
d. Protocol is configured as FCP on DWDM.
e. In addition, the 10 GbE connection is also qualified with the IBM zEnterprise intraensemble
data network (IEDN).
f. Multiple STP links can be supported on the same card.
g. ISC-3 without STP is also supported.
Qualified distances: Consult your storage area network (SAN) switch vendors for
qualified ISL-supported distances and features.
References
For more information about System z connectivity, see the following resources:
System z I/O connectivity home page
IBM System z Connectivity Handbook, SG24-5444
FICON Planning and Implementation Guide, SG24-6497
Implementing and Managing InfiniBand Coupling Links on System z, SG24-7539
Huawei Optix OSN 8800 Release 5.51.07.36 and Optix OSN 1800 Release 5.67.03.22
15
For more information about GDPS, see the following resources:
GDPS home page
GDPS Family: An Introduction to Concepts and Capabilities, SG24-6374
For more information about STP, see the following resources:
Parallel Sysplex home page:
Server Time Protocol Planning Guide, SG24-7280
Server Time Protocol Implementation Guide, SG24-7281
Server Time Protocol Recovery Guide, SG24-7380
For more information about optical communications, see:
Understanding Optical Communications, SG24-5230
For current information about qualified DWDM vendor products, registered users can see the
library at the IBM Resourcelink website:
For current information about qualified vendor switches and directors for IBM System z
FICON and FCP channels, registered users can see the library at the Resourcelink website:
For more information about IBM Redbooks publications on System z qualified DWDM vendor
products, visit:
For more information about the Optix OSN 8800 and Optix OSN 1800 platforms, see:
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Huawei Optix OSN 8800 Release 5.51.07.36 and Optix OSN 1800 Release 5.67.03.22
Authors
This Redpaper publication was produced by a team of specialists working at the IBM
International Technical Support Organization, Poughkeepsie Center.
Bill White is a Project Leader at the IBM International Technical Support Organization,
Poughkeepsie, NY.
Pasquale Catalano is an Advisory Engineer at the IBM Vendor Solutions Connectivity Lab in
Poughkeepsie, NY. He has 10 years of experience in DWDM vendor qualification testing. He
has a Masters of Science in Electrical Engineering from the State University of New York at
New Paltz.
Andrew Crimmins is an Engineer at the IBM Vendor Solutions Connectivity Lab in
Poughkeepsie, NY. He has three years of experience in DWDM vendor qualification testing.
He has a Bachelors of Science in Computer Engineering from the State University of New
York at New Paltz.
Thanks to the following people for their contributions to this project:
Connie Beuselinck
System z Hardware Product Planning, IBM Poughkeepsie
Casimer DeCusatis
Distinguished Engineer, STG Development, IBM Poughkeepsie
Ivan Dobos
ITSO Project Leader, IBM Slovakia
Michal Holenia
Senior Network IT Architect, IBM Slovakia
Octavian Lascu
ITSO Project Leader, IBM Romania
Rav Meerwald
Advanced Account System Service Representative, IBM Australia
Jeff Nesbitt
Advanced Account System Service Representative, IBM Australia
Pasi Laakso
IBM Certified IT Specialist, IBM Finland
Simon Yee
System z Program Manager, IBM Poughkeepsie
Huawei Optix OSN 8800 Release 5.51.07.36 and Optix OSN 1800 Release 5.67.03.22
17
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Huawei Optix OSN 8800 Release 5.51.07.36 and Optix OSN 1800 Release 5.67.03.22