With more and more operators of CABLELABS members who publish or prepare for the deployment of negative optical network technologies (PON) based on ITU-T, negative visual network technologies (Pon) such as XGS-Pon, the interim operation of equipment from different sellers is more important than ever. One of the well-known sources of XGS-Pon operating from the various applications of the OMCI management control interface-which is primarily determined by the ITU-T G.988 recommendation.
Last year, the Cablebs Group jointly between the Pon (CPMP) began to tighten some gaps in G.988, by publishing the first version of the OpenONCI specifications of the cable. These specifications aim to enumerate a group of management elements from the most important G.988 for the operators of Cablembs members and to clarify how to support these elements in XGS-Pon equipment for sale to these operators.
At the xgs-Pon Interop · recently LABS at Cablelabs, many suppliers of the Pon (OLT) and optical network unit equipment Pon (onu) have the ability of their equipment to overlap. This was the first opportunity to industry to practice equipment applications that correspond to the requirements specified in the OpenONCI specifications of the cable.
But the event, which was held on April 28 – May 1 in our Colorado Laborators, practiced more than just interviews. It also included a continuation of providing documents to test the possibility of inter-operating XGS-Pon, which started for the first time during the Interop in February. Please see the March Blue Publication for a deeper description of the concept of XGS-Pon documents and the scope of this event.
Sharing supplier at Interop xgs-Pon
The inter -employment events enabled the participants to cooperate and solve problems on specific techniques and goals. The participation of the sellers is very important in the progress of technology solutions to the entire industry.
Participants at the April Interop event included XGS-Pon Olt-showing of OMCI and Docsis (DAL) applications-as well as Xgs-Pon Onu suppliers, who have offered OMCI aspects of their control.
Own suppliers included Xgs-Pon Olt Calix, Ciena and Nokia. In particular, Calix was tested using E7-2 OLT and DPX Dal. Cinea Tibit MicroPlug Olt, MCMS Controller and DAL. Nokia was tested using the LightSpan MF-2 OLT and Altiplano. Although the primary focus of this event was on XGS-Pon technology, CIENA also brought 25gs-Pon Olt and 25gs-Pon Onu, and showed the provision of documents for these equipment, as well as redirect traffic through it.
In addition to the participants in the OLT supplier, the XGS-Pon Onu supplier included the audience, Cambridge Industries Group, Hitron, Maxlinear, Sagemcom and Sercomm. While Sagemcom onu brought in a residential gate, most suppliers brought her tolele. Many responsibility of additional suppliers (including Calix, Ciena/Tibit and Nokia) were also ready to test from OLT sellers interested with OLT and DAL applications.
XGS-Pon OMCI tests
The OMCI test plan that was implemented during the event was based on the requirements specified in the i01 version of the OpenONCI specifications of the cable. Olt and ONU Mourners have met those interested in several weeks before the event to determine the testing cases that will be included in the Interop test plan.
After the general contents of the OpenONCI specifications of the cable, the following tests were identified:
MIB download component to manage OMCI configuration creation and obtain ways to monitor performance OMCI composition management via OMCI Onu image download image onu
During the first three tests, the 100G traffic generation system was used in the laboratory to transport and receive traffic through a specific group of OLT and onu under test. During each of the five test cases, the capabilities of the XGS-Pon or OMCI analyst were used to correct errors in OLT to pick up and study the exchange of messages between Onu and Olt. One of the participant Olt sellers indicated that during the event, they tested 12 different models from Onu, where they examined nearly 100 OMCI management elements for each onu.
Interop test results were encouraging and showed that the participating suppliers had already started implementing the requirements of the OpenONCI specifications for the cable in their programs. As expected, the test also revealed the possibility of the inter -operational operation in OMCI. These problems will reach the next group of work elements for the CPMP work group to process.
New issues bring new reforms
With a wide range of OLT and Onu applications on hand on this event, it was imperative that new problems be discovered – this is exactly the reason we are conducting interim operation events.
Now, the CPMP working group will discuss the results we have reached and determine the priorities of solutions for them through the process of engineering change of the OpenONCI specifications for the cable. Reforms are likely to include the simplified problems in the next version of the i02 version of the specifications. More complex problems may take more time until the working group is solved and thus will be addressed in a later version of the specifications.
Join us next time
Cablebs plans in Pon Interop · Labs this year, with the next event for the week from August 4. Stay tuned for more details.
The August event will provide an opportunity for OLT and Onu suppliers to return to an overlapping operating test based on compliance with the expected i02 version of the OpenONCI cable specifications. We also welcome OLT suppliers to return to their DAL solutions for Onu and Config File File -enborection.
