As network services ar developing quickly, the access layer of the person or mobile bearer network homes a good deal of devices with varied networking. Service preparation needs advanced turning out with and protocol configuration, that brings high network O&M prices. Huawei provides a virtual access resolution to cut back O&M prices whereas not increasing network device investments. Virtual access is often used for MAN virtualization terribly} terribly fastened broadband (FBB) resolution. BRAS services ar deployed terribly} terribly virtual access system on ME60.
Networking Description
In a virtual access system, associate AP doesn't establish access users and forwards solely user packets. All IPoE/PPPoE user packets ar sent to a master for termination over a PW.
A terminal user accesses associate AP through a Layer a mix of device. The AP encapsulates info and protocol packets with vaPW and vaLSP labels and transparently transmits the packets to the master. Once getting service authorization, the terminal user will access the corresponding services.
BRAS
After associate scientific disciplineoE/PPPoE/L2TP user starts the scientific discipline terminal or manually dials up, the topic space terminal sends associate access message, that is relayed to associate AP through associate access device.
The master removes the vaPW associated vaLSP labels from the access message Associate in Nursingd interacts with the DHCP ANd RADIUS servers to assign an {subject space|discipline|subject|subject field|field|field of study|study|bailiwick|branch of knowledge|knowledge domain|knowledge base} address to the topic space terminal and proof and authorize the topic area terminal.
The subject space terminal will access a service system to use services. once a info packet is forwarded to the AP, the AP encapsulates the information packet with vaPW and vaLSP labels and transparently transmits it to the master.
The master removes the vaPW and vaLSP labels from the information packet and forwards it to the topic space network.
Typical networking eventualities for BRAS service preparation terribly} terribly virtual access system ar as follows:
Typical PPPoE networking in virtual access eventualities
After a user dials up to a master exploitation PPPoE, the master assigns associate knowledge base address to the user. Then, the user will use the appointed knowledge base address to access associate external network.
PPPOE
Typical IPoE networking in virtual access eventualities
A Layer a mix of access user accesses a master through a Layer a mix of device. The access user’s address unit typically appointed exploitation DHCP on the master or through a foreign DHCP server.
IPOE
Typical L2TP networking in virtual access eventualities
A master supports virtual access for LACs. A terminal dials up over PPPoX, and PPPoE, PPPoEoVLAN, and PPPoEoQ packets ar supported. associate AP encapsulates packets with vaPW and vaLSP labels and transparently transmits them to the master. The master then removes the vaPW and vaLSP labels for material authentication and forwarding.
https://support.huawei.com/enterprise/en/doc/EDOC1100058417/6288191b/introduction-of-virtual-access
