Vbas; Arp - Zte ZXR10 5900E Product Description

which works as the terminating point of user multicast IGMP request and determines
whether to duplicate multicast stream to user port based on corresponding IGMP request
and control policy. The multicast controlling point near user saves more network
bandwidth. As the key device implementing multicast controlling policy, multicast
controlling point supports the following features: IGMP V1/V2, IGMP Snooping, IGMP
Filter, IGMP Proxy, IGMP Fast leave, MVR (Multicast VLAN Register), SGR (Static
Group Register), UGAC (User Group Access Control), UGAR (User Group Access
Record) etc. Multicast on demand authority of user can be controlled by rule and channel
binding.

3.2.22 VBAS

VBAS is the short form for Virtual Broadband Access Server. It is a kind of query protocol
expanded between IP-DSLAM and BRAS device. Point-to-point communication is used
between BRAS and IP-DSLAM, i.e. port information query and respinding message can
be encapsulated in L2 Ethernet data frame.
The implementation principle is that L2 point-to-point communication between BRAS and
IP-DSLAM. That is to say, port information query and responding packets are directly
encapsulated in L2 Ethernet data frame. Configure DSLAM corresponding to VLAN on
BAS. Initiate VBAS during PPPoE calling process. That is to say, mapping user band
VLAN to corresponding DSLAM. BAS actively initiate user line identity query to DSLAM,
which provides BAS with responding user line identity. The local 59E series switch is
DSLAM device
VBAS protocol is implemented by sending VBAS message between BAS and DSLAM.

3.2.23 ARP

When one network device is sending data to another one, in addition to IP address of the
destination equipment, it should also be clear of the MAC address of the destination
equipment. ARP（Address Resolution Protocol）is made to map IP address to MAC
address to make sure successful communication. When one device is communicating
with an unknown device in the network, the MAC address of the unknown device will be
get firstly via ARP. The specific procedures are:
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ZXR10 5900E Product Description
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