OLT equipment has the following two main trends: first, the support for 10G PON board card, including the increase of single slot exchange capacity and the overall exchange capacity, and the uplink port support for larger bandwidth ports such as 10GE, etc;Second, with the overall network structure of each operator evolving to SDN/NFV,, OLT equipment itself faces the problem of evolving to SDN / NFV.
(1) Support for 10 GPON for current network equipment
The equipment of the current network can support the 10G PON board card by upgrading the main control board card and power supply. After upgraded devices, most existing devices also support 10G PON. Therefore, when the OLT equipment is configured with 10G PON board, in addition to the support of the equipment itself, each merchant also need to upgrade the network management and equipment.
(2) The evolution to SDN / NFV
SDN / NFV can share access resources, facilitate service management, and realize multi-service carrying. Through SDN / NFV, the following functions can be realized: hardware resources independent, VLAN resources, MAC table, routing table, QoS queue resources independent; software features independent, and features can be configured differently and differentiated customization; management decentralization domain, configuration pipeline isolation of vOLT, including service provisioning,, operation and maintenance, alarm, log, etc.
OLT devices as access devices evolve to SDN / NFV, the mainstream view is that it is difficult to achieve “white box”, mainly to realize network-level management and the upward shift of some non-real-time control functions. In the initial stage, the author mainly realizes network slicing, namely OLT virtualization, virtual one OLT into multiple OLTs. At present, it can be realized to divide virtualization OLT based on board card, PON port, terminal device and user port (UNI). In the later stage, the standard north-south interface (Netconf / YAGN, OpenFlow) is gradually realized, and the control and forwarding are separated through the SDN controller.
The main application scenarios of SDN / NFV are safe City (video surveillance), PON carries LSN services, campus network, small station return, foreign-related hotels, etc.
(3) Next-generation OLT products
At present, the next generation optical access platform is mostly based on the existing products to realize the evolution to the next generation 100G access and SDN, and the transformation of OLT devices into SDN is basically still in the planning stage, so OLT does not have the conditions for SDN in the short term.
Above is the trend of the development of OLT equipment, Shenzhen HDV photoelectron technology co., LTD.is strong, the main hot products with OLT equipment: rack type olt, small olt, compact olt, olt switch, olt module, communication olt, etc., the development of OLT equipment is immeasurable in the era of network, OLT is also one of the indispensable communication products in network equipment, if necessary, you can learn from our company, we will provide professional pre-sale and after-sales service.