Zyxel VES-1624FT-55A Инструкция по эксплуатации онлайн [38/312] 154555

Zyxel VES-1624FT-55A Инструкция по эксплуатации онлайн [38/312] 154555
Chapter 1 Introducing the IP DSLAM
VES-1624FT-55A User’s Guide
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Multicast VLAN
Multicast VLAN is designed for applications (such as Media-on-Demand (MoD)) using
multicast traffic across an Ethernet ring-based service provider network. Multicast VLAN
allows one single multicast VLAN to be shared among different subscriber VLANs on the
network. This improves bandwidth utilization by reducing multicast traffic in the subscriber
VLANs and simplifies multicast group management.
VLAN Isolation
Use isolation to block the VDSL2 subscribers in a specific VLAN from sending traffic directly
to each other.
MAC (Media Access Control) Filter
Use the MAC filter to accept or deny incoming frames based on MAC (Media Access Control)
address(es) that you specify. You may enable/disable the MAC filter on specific ports. You
may specify up to ten MAC addresses per port.
Security
Password protection for system management
•VLAN
RADIUS client
STP (Spanning Tree Protocol) / RSTP (Rapid STP)
(R)STP detects and breaks network loops and provides backup links between IP DSLAMs,
bridges or routers. It allows a IP DSLAM to interact with other (R)STP -compliant IP
DSLAMs in your network to ensure that only one path exists between any two stations on the
network.
IEEE 802.1x Port-based Authentication
The IP DSLAM supports the IEEE 802.1x standard for centralized user authentication and
accounting management through an optional network authentication (RADIUS) server.
MAC (Media Access Control) Count Filter
You can limit the number of MAC addresses that may be dynamically learned on a port. You
may enable/disable the MAC count filter on individual ports.
DHCP Relay
DHCP (Dynamic Host Configuration Protocol RFC 2131 and RFC 2132) allows individual
computers to obtain TCP/IP configuration at start-up from a server. You can configure the
system as a DHCP relay agent to have another DHCP server provide TCP/IP configuration for
the clients. In addition, you can set the system to forward client DHCP requests to specific
DHCP servers based on the VLAN ID. You can also specify up to two DHCP servers for each
VLAN to provide fail-over protection.

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