Showing posts with label transmission network. Show all posts
Showing posts with label transmission network. Show all posts

Monday, November 13, 2017

When the ODUK SPRING Protection Switching Is Performed by Running External Commands, If the OTN Tributary Board Is Not in Position, the Switching May Fail

Issue Description

When the ODUK SPRING protection switching is performed by running external commands, if the OTN Tributary board is not in position, the switching may fail. 

Alarm Information

Null 

Handling Process

If the OTN board for the westward or eastward services of the ODUK SPRING protection is not in position, performing the switching by running external commands is nonsense. If you really intend to perform the switching by running external commands, you must ensure that the OTN board for services in that direction is in position.  

Root Cause

In the network shown in the following figure, NE6 is the management node, and services are 
configured between NE2 and NE6. In addition, the OTN board of NE2 is not in position. 
Under normal conditions, the service flow, indicated by the red real line, is as shown in the figure. When NE6 starts a westward forced switching, NE2 switches from the IDLE page to the eastward switching page. The service flow, indicated by the blue dashed line, is as shown in the figure.
In the process of the switching, if the tributary board of NE2 is in position, the Huawei OTN signal on the protection link is stable and there are no abnormal alarms on the protection channel. But if the tributary board of NE2 is not in position, the OTN signal on the protection link needs to be regenerated by an NS2(OTN board according to certain Recommendations). The regeneration operation requires a certain period of time. The protection channel may detect abnormal alarms before the OTN signal regeneration is completed and immediately reports an SF alarm, which results in the failure of the forced switching.


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Sunday, March 13, 2016

What interface is the huawei Optix OSN3500 support

Question: What interface is the huawei Optix OSN3500 support?
Answer:
Support STM-1 (O/E). SL1D
Support the STM-4/16/64 standard or cascade business.
Support E1/T1/E3/T3/E4.
Support FE, GE business transmission and exchange.
Support the ATM service.
Support the IMA service.
Support SAN service and video service.
To provide end-to-end service fast terminal based on GMPLS.
the huawei Optix OSN3500 has high order 200G, the low order 40G cross scheduling capability. With the 100G packet switching capability.

The system supports EM6T/EM6F packet switching and transmission OSN 3500 intelligent optical transmission, and inherits all the features of MSTP technology, compatible with traditional SDH,MSTP network, a new generation of integrated 10G/2.5G into SDH/PDH, Ethernet, WDM, ATM,ESCON/FC/FICON, DVB-ASI, RPR application technology as a whole in the sink and core layermulti service intelligent optical transmission platform.
The evolution of intelligent optical network products to support smooth. Mainly used in industry market convergence layer and access layer, and sharing and OSN9560/OSN7500/2500/1500plate convergence and core layer; OSN3500 support intelligent characteristics, can completeend-to-end service automatic configuration, SLA service, traffic engineering, slot fragmentoptimization, Mesh clock tracking, improve the network utilization.
More information about it, please click here.

Telephone: 852-30623083
           Supports@Thunder-link.com            
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Tuesday, March 8, 2016

OptiX OSN 8800 Tributary SNCP Defect on TN54THA and TN53TSXL

Summary: The NE software V100R008C10SPC200 does not support hardware tributary subnetwork connection 
protection (SNCP) on the TN54THA and TN53TSXL boards. To be specific, a TN54THA or TN53TSXL board equipped 
with hardware tributary SNCP will insert an incorrect s-code to the cross-connect board on the NE. As a result, the 
cross-connect board will report a HARD_BAD alarm, affecting services on the NE.
Product Line: Transport network product line                             Product Family: WDM products
Product Model: OptiX OSN 8800 V1R008C10SPC200
[Problem Description]
Trigger conditions:
The NE software version is V100R008C10SPC200.
Hardware tributary SNCP has been configured on RX/TX ports 9–16 of a TN54THA board or the RX/TX port of a TN53TSXL board on the NE. 
Hardware tributary SNCP is newly configured on RX/TX ports 9–16 of a TN54THA board or the RX/TX port of a TN53TSXL board on the NE. 
The cross-connect board on the NE is TN16UXCM, TN52UXCH, TN52UXCM, TNK2USXH, or TNK2UXCT. 
During NE expansion, the cross-connect boards on the NE are upgraded from TN16XCH, TN52XCH, TN52XCH02, TNK2SXH, TNK2XCT, TNK4SXM, 
TNK4SXM, or TNK4XCT to TN16UXCM, TN52UXCH, TN52UXCM, TNK2USXH, or TNK2UXCT. 
When conditions 1, 2, and 5, or conditions 1, 3, and 4 are met, the NE will report a HARD_BAD alarm.
Symptom:
The NE reports a HARD_BAD alarm and services on the NE are affected.
Identification method:
Conditions 1, 2, and 5, or conditions 1, 3, and 4 are met, and the NE reports a HARD_BAD alarm. The alarm parameters 
are as follows: 0xf,0x5,0xa,0xff,0xff,0xff.

[Root Cause]
The OptiX OSN 8800 V100R008C10SPC200 does not support hardware tributary SNCP on the TN54THA and TN53TSXL boards. 
If hardware tributary SNCP is configured on a TN54THA or TN53TSXL board, array violation will occur on the board, causing the 
board to insert an incorrect s-code to the cross-connect board on the NE. As a result, bit changes occur on the chip page of the 
cross-connect board. Consequently, the cross-connect board reports a HARD_BAD alarm. 

[Impact and Risk]
The network expansion is affected. When common cross-connect boards are upgraded to U-series cross-connect boards, the HARD_BAD alarm will be reported, and the tributary SNCP services on the TN54THA or TN53TSXL boards will 
be interrupted.
If U-series cross-connect boards are already used, the HARD_BAD alarm will be reported when tributary SNCP services are created. As a result, the 
new services cannot be provisioned but the existing services are not affected. 
The existing tributary SNCP services are not affected in non-expansion scenarios.
[Measures and Solutions]
Recovery measures:
In expansion scenarios, use the NE software V100R008C10SPC300 instead of V100R008C10SPC200. 
If tributary SNCP services fail to be created on the NE software V100R008C10SPC200, upgrade the NE software version to 
V100R008C10SPC300 or later.
Workarounds:
If tributary SNCP services are configured for the TN54THA or TN53TSXL board on an NE, use NE software V100R008C10SPC300 or 
later instead of V100R008C10SPC200. 
Preventive measures:
If tributary SNCP services are configured for the TN54THA or TN53TSXL board on an NE, use NE software V100R008C10SPC300 or 
later before capacity expansion.

Telephone: 852-30623083
           Supports@Thunder-link.com            
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Sunday, February 28, 2016

Huawei OSN1500B Gold Line FAQ

  • OSN1500B Subrack, with 1+1 PIU, 1PCS AUX
  • 2 PCS Q2CXL16 Equipped, Support Cross-Connect and Main Control 1+1 Redundancy, and Provide 2*STM-16 Optical Interface, Transmission Distance 15KM.
  • 1 PCS EFS0+ETF8 Equipped, Support 8*FE Electrical Interface.
  • 1 PCS SLQ4(S-4.1) Equipped, Support 4*STM4 Optical Interface, transmission distance 15KM.
  • 1 PCS R1SLQ1(S-1.1) Equipped at half slot, Support 4*STM1 Optical Interface, transmission distance 15KM.
  • 1 PCS R2PD1+D75S Equipped at half slot, Support 32*E1 75ohm Service Access.
  • Cross-Connect Capacity is 20G/High order, 20G/Low order.
  • System Software Loaded by default, Version Available at V1R8 or V1R10.
  • SFP Module for Optical Interface can be Swappable to Support Longer Transmission Distance.
  • E1 Cable for R2PD1 is not included.

    Huawei OSN1500B Gold Line Configuration, is a recommended board bundle provided by Thunder-link.com, it has most common service type and ordinary ports. You can find other configuration bundle at CONFIGURE page, where you can even configure by yourself by selecting the boards you need. If you need customized configuration, please contact with Thunder-link.com Sales Team. who will come back to you shortly.
Huawei OSN1500B Gold Line FAQ
Q: What is the slot access capacity?
A: Before slot division of the OptiX OSN 1500B:
fig_1002_08.png
In the OSN 1500B subrack, slots 11-13 can be divided into half-width slots. Slot 11 can be divided into two half-width slots numbered slot 1 and 11, slot 12 can be divided into two half-width slots numbered slot 2 and 12, and slot 13 can be divided into two half-width slots numbered slot 3 and 13.
222.png

Q: What boards are applicable on OSN1500B?
A:
List of cross-connect board
R1PCXLNSCC unit, cross-connect unit, optical interface unit integrated board

List of packet processing boards
Q1PEGS22xGE processing boardR1PEF4F4xFE optical processing board
R1PEGS11xGE processing boardR1ML1Multi-protocol 16xE1 electrical processing board
R1PEFS88xFE processing board  

List of List of SDH boards
N3SL16, N3SL16A1xSTM-16 optical  interface boardN1SF16E1xSTM-16 optical interface board (with the outband EFEC function)
N1SL16,N1SL16A, N2SL16,N2SL16A1xSTM-16 optical interface boardN3SLQ414xSTM-4/STM-1 optical interface board
N1SF161xSTM-16 optical interface board (with the outband FEC function)N1SLQ4, N2SLQ44xSTM-4 optical interface board
N1SLQ4A4xSTM-4 optical interface boardN1SLD4, N2SLD4, N1SLD4A2xSTM-4 optical interface board
R1SLD42xSTM-4 optical interface board (divided slot)R1SL41xSTM-4 optical interface board (divided slot)
N1SL4, N2SL4, N1SL4A2xSTM-4 optical interface boardN1SLT112xSTM-1 optical interface board
N1EU088xSTM-1 electrical interface boardN1OU08((LC) N2OU08(SC)8xSTM-1 optical/electrical interface board
N2SLO1, N3SLO18xSTM-1 optical interface boardN1SLQ1, N2SLQ14xSTM-1 optical interface board
N1SLQ1A4xSTM-1 optical interface boardR1SLQ14xSTM-1 optical interface board (divided slot)
N1EU044xSTM-1 electrical interface boardN1SEP12xSTM-1 when interfaces are available on front panel.8xSTM-1 when interfaces are available  on corresponding interface board
N1SL1, N2SL1, N1SL1A1xSTM-1 optical interface boardR1SL11xSTM-1 optical interface board (divided slot)

List of List of PDH board
N1SPQ44xE4/STM-1 electrical processing boardN2SPQ44xE4/STM-1 electrical processing board
N1MU044xE4/STM-1 electrical interface boardN2PQ312xE3/T3 service processing board
N1D34S6xE3/T3 electrical switching interface boardN1C34S3xE3/T3 electrical switching interface board
N1PD3, N2PD36xE3/T3 service processing boardN1PL3, N2PL33xE3/T3 service processing board
N1PL3A, N2PL3A3xE3/T3 service processing board (Interfaces are available on the front panel.)N1PQ163xE1 service processing board
N2PQ163xE1 service processingN1PQM63xE1/T1 service processing board
N1D12B32xE1/T1 electrical switching interface boardN1D12S32xE1/T1 electrical switching interface board (120 ohms)
N1D75S32xE1 electrical switching interface board (75 ohms)R1PD1, R2PD132xE1 service processing board
R1PL116xE1 service processing boardN1PFL18xE1 optical processing board
N1TSB88-port electrical switching interface boardN1TSB44-port electrical switching interface board
N1DX1DDN service accessing and converging boardN3DX1DDN service accessing and converging board
N1DXADDN service converging and processing boardN1DM12DDN service interface board

List of EoS boards
N1EFT8,N2EFT88xFE/16xFE transparent transmission boardN1EFT8A, N2EFT8A8xFE transparent transmission board
N1EFS0A16xFE switching and processing boardN1EFS0,N2EFS0, N4EFS0, N5EFS08xFE switching and processing board
N1EFS4, N2EFS4, N3EFS44xFE switching and processing boardR1EFT4, R2EFT44xFE transparent transmission board (divided slot)
N1EMS44xGE and 16xFE switching and processing boardN1EMS22xGE and 16xFE switching and processing board
N1EGS4, N3EGS44xGE switching and processing boardN1EGT2, N2EGT22xGE transparent transmission board
N2EGS2, N3EGS22xGE switching and processing boardN1EFF8,N1EFF8A8x100M Ethernet optical interface board
N1ETF8,N1ETF8A8x100M Ethernet twisted-pair interface boardN1ETS88x10/100M Ethernet twisted pair interface switching board

List of ATM boards
N1ADL4, N1IDL41xSTM-4 ATM service processing boardN1ADQ1, N1IDQ14xSTM-1 ATM service processing board

List of RPR boards
N2EGR22xGE ring processing boardN2EMR012xFE and 1xGE ring processing board

List of RPR boards
N1VST44-port video service transparent transmission boardN1MST44-port multi-service transparent transmission board

List of RPR boards PCM boards
N1FXSO1212-port FXS/FXO processing boardN1FXS1212-port FXS processing board
N1FXO1212-port FXO processing boardN1AT66-port 2/4 wire and E&M processing board

Lost of WDM board
TN11CMR44-channel optical add/drop multiplexing boardN1MR2C,N1MR2B2-channel optical add/drop multiplexing board
TN11CMR2, TN11MR2 N1MR2A2-channel optical add/drop multiplexing boardTN11MR22-port optical add/drop multiplexing board
TN11MR44-port optical add/drop multiplexing boardN1CMD22-channel bidirectional optical multiplexer and demultiplexer board
N1LWXArbitrary bit rate wavelength conversion boardN1FIBFilter isolating board

List of auxiliary boards
R1EOWOrderwire processing boardR1AUX, R2AUXSystem auxiliary interface board
R1AMUOrderwire processing or alarm cascading boardR1FANFan board

List of optical amplifier boards
N1BPAOne-channel power amplifier and one-channel pre-amplifier boardN2BPAOne-channel power amplifier and one-channel pre-amplifier board
N1BA2Two-channel power amplifier boardN1COA, 61COA, 62COACase-shaped optical amplifier
N1RPC01Forward Raman driving board (external)N1RPC02Backward Raman driving board (external)

List of power boards
UPMUninterruptible power moduleR1PIU,R1PIUBPower interface board

Q: Can I use new version board to replace old version ones?
A: Yes, most of OSN1500B service board, you can use newer version to replace old ones, here listed some ordinary substitution boards below, or you can contact Thunder-link.com technical sales team to confirm the board substitution relation.
Substitute BoardTo-Be-Substituted BoardSubstitute BoardTo-Be-Substituted Board
N1SL1AN1SL1N1SL4AN1SL4
N1SLD4AN1SLD4N1SLQ1AN1SLQ1
N1SLQ4AN1SLQ4N3SL16N1SL16
N3SL16AN1SL16AN3SLQ41N1SLQ1 N1SLQ4 N2SLQ1 N2SLQ4
N2PD3N1PD3N2PL3N1PL3
N2PL3AN1PL3AN2PQ1N1PQ1
N2SPQ4N1SPQ4N2EFS0N1EFS0
N2EFS4N1EFS4N2ETF8N1ETF8
N2EFT8AN1EFT8AR2EFT4R1EFT4
N2EGT2N1EGT2N3EFS4N1EFS4 N2EFS4
N3EGS2N1EGS2 N2EGS2N4EGS4N3EGS4
N5EFS0N1EFS0 N2EFS0 N4EFS0  

Q: Is there any restrictions for board substitution?
A: Yes, there list some restrictions when board substitution below or you can contact Thunder-link.com technical sales team to confirm the board substitution relation.
Board that supports board version replacement functionsBoard that cannot Be substitutedCondition
N1SL16AN2SL16A
N3SL16A		The TCM function is enabled for the N2SL16A/N3SL16A.
N3SL16N2SL16The TCM function is enabled or AU-3 services are configured for the N2SL16
N3SL16AN2SL16AAU-3 services are configured for the N2SL16A.
N3SLO1N2SLO1AU-3 services are configured for the N2SLO1.
N2EFS0, N4EFS0N1EFS0N1EFS0 is configured with QoS functions. If an N4EFS0/N2EFS0 is configured as N1EFS0 and the simulation package loading method is used, the board software of N1EFS0 is loaded. As a result, a cold reset is performed on the board and board  version replacement function becomes ineffective. Therefore, an N4EFS0/N2EFS0 must not be configured as an N1EFS0.
N4EFS0N2EFS4If an N4EFS0 is configured as an N2EFS0 and the simulation package loading method is used, the board software of the N2EFS0 is loaded. As a result, a cold reset is performed on the board and the board version replacement function becomes ineffective. Therefore, an N4EFS0 must not be configured as an N2EFS0.
N2EGS2N1EGS2The N1EGS2 is configured with QoS functions.

Q: Do you have U2000 NMS if I buy OSN1500B from you?
A: Yes, we can share U2000 software package to our customers for free.

Q: Do you have U2000 NMS License if I buy OSN1500B from you?
A: Yes, we provide to our customer U2000 license for test purpose, not for commercial use.

Q: Does OSN1500B have AC power supply?
A: No, OSN1500B power interface unit PIU is DC -48V input only, if you need a AC/DC power converter, please contact with Thunder-link.com sales team.

Q: Do you offer OSN1500B Subrack separately?
A: Yes, please contact with our sales team for details.

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