According to the CRC headquarters Miu Miu Handbags to create high quality Internet, continued to improve user perceptions of the requirements, the 2012 focus on IP metropolitan area network access layer put forward the following four requirements: (1) prohibit the DSLAM cascade. (2) implementation of Metro access and aggregation layer Layer flat work requirements, from the Miu Miu Handbags client to the Metro aggregation layer is not more than three levels. DSLAM to BRAS can only be between 1-level aggregation switch, which requires judian aggregation switches must first pair part directly to the BRAS judian. (3) important judian XPON real equipment and higher nodes dual road, while the upper network are considered Fendi Handbags dual-path, even on the road. (4) even BRAS on the OLT should, in principle, directly, the access layer switches cascaded. generally speaking, each judian 1 OLT was established and 1 aggregation switch, many under the OLT is hanging in the aggregation switches above, should, in principle, to be transformed, OLT first pair part Fendi Handbags peak flow rate
Must be greater than 500M to be transformed, link does not have conditions and OLT peak velocity is less than the first pair part link 500Mbps through aggregation of switches, access BRAS/SR. Loudi railway communication in light of its own actual situation, develop implementation plans related to the first quarter of this year, after implementation is now complete (1): DSLAM-free cascading. (2) some flat renovation of the network element. (3) several important judian way has implemented a dual line (Xinhua, lianyuan, private, lianyuan iron and steel).����(4) complete the center of OLT straight BAS reform. loudi, others after you move the OTN network improvement (including CRC computer room), have the appropriate resources to implement, and gradually move closer towards the guidance from Headquarters. Loudi railway's own resources are limited, in the implementation of this task is very difficult, branch through a mobile collaborative development of loudi, implemented as far as possible with the help of mobile resources, mobile no