TRANSFORMACIÓN

A MUX VLAN is a VLAN that contains one or multiple uplink ports, but contains only one service port. The traffic streams of any two MUX VLANs are isolated.

One-to-one mapping can be set up between a MUX VLAN and an access subscriber. Hence, a MUX VLAN can uniquely identify an access subscriber according to the VLAN. The MUX VLAN is used when subscribers are identified according to VLANs.

3.2.2 IPTV

This topic describes the IPTV features of the UA5000.

l Internet Group Management Protocol (IGMP) proxy, and IGMP Snooping

l IGMP V2, compatible with IGMP V1

l GE video network port, providing high quality of IPTV service

l Fast service switching capacity

l Service preview

l Centralized report of the multicast log

l Controllable service access, including service authority, service quantity, preview authority, preview time, and preview times

l The transaction language 1 (TL1) interface on the Huawei N2000 BMS is interconnected with the service management system (SMS)/operation support system (OSS) to control the authority of IPTV service

l QoS, to ensure the expedited forwarding of the video stream

3.2.3 QoS

This topic describes the QoS features of the UA5000.

l Packet forwarding based on 802.1p priorities to provide appropriate QoS levels for different services to ensure the expedited forwarding of services that are sensitive to delay

l Access control list (ACL)-based IP preference labelling or DSCP priorities labelling for packets

l Flow control based on port, connection and VLAN

l Congestion control

l Queue scheduling, including priority queuing (PQ), and weighted round robin (WRR)

3.2.4 Reliability and Maintainability

This topic describes the reliability and maintainability of the UA5000.

l Provides 1+1 protection of the uplink optical ports to ensure the continuity of the service.

When the uplink link becomes faulty, the UA5000 automatically switches the service to the standby link without interrupting the service.

l Supports the Link Aggregation Control Protocol (LACP) to help support link aggregation, traffic sharing and link protection on the uplink port.

l F5 OAM Ping. It helps test the connectivity between the UA5000 and the customer premises equipment (CPE) by sending OAM loopback cells from the UA5000 to the CPE.

3.2.5 MAC Address Management

This topic describes the MAC address management features of the UA5000.

l Static MAC address configuration

l Learning and aging of dynamic MAC addresses

l Configuration and management of the MAC address pool that is used for conversion from PPPoA to PPPoE and that from IPoA to IPoE

3.2.6 Routing Management

This topic describes the routing management features of the UA5000.

The UA5000 uses static or dynamic routing for addressing. The UA5000 supports the following dynamic routing protocols: Routing Information Protocol (RIP) and Open Shortest Path First (OSPF).

The UA5000 manages the static routes and also the dynamic routes discovered by the routing protocol. The static routes and dynamic routes share their routing information.

3.2.7 Security Management

This topic describes the security management features of the UA5000.

When the services are sent uplink to the IP network, the UA5000 provides the following security management features:

l Subscriber isolation at L2 through VLANs

l Subscriber isolation within one smart VLAN

l Controlling the number of subscribers connected to each port and the number of multicast groups in which each port joins

l MAC address anti-spoofing and IP address anti-spoofing

l MAC address filtering to prevent the malicious packets from the users

l Anti-Dos attack, and suppression of IGMP and DHCP protocols on the subscriber port, that is, the attack users will be listed in the black list to prevent the passing of the protocol packets

l Standard ACL, extended ACL, L2 ACL and user-defined ACL

l Traffic filtering according to the set rules

l Identifying subscribers through Dynamic Host Configuration Protocol (DHCP) Option82

l Transmitting physical port information of subscribers through Policy Information Transfer Protocol (PITP) (including PPPoE+ and virtual broadband access server (VBAS)) to the BRAS for authentication

l Logging into the UA5000 through secure shell (SSH) V2

3.2.8 L2 and L3 Features

This topic describes the L2 and L3 features of the UA5000.

The UA5000 supports a complete TCP/IP protocol stack to enable easy extension of multiple L2 and L3 protocols.

The UA5000 supports the following L2 and L3 features:

l DHCP relay to support cross-network transmission of the DHCP packets

l ARP proxy to interconnect sub VLANs (L2 VLANs) in the same super VLAN through virtual L3 interfaces, saving IP addresses of access subscribers

l Conversion between IPoA and IPoE, and also the conversion between PPPoA and PPPoE so that ATM subscribers can access the IP network

l RIP and OSPF

l Spanning Tree Protocol (STP)/Rapid Spanning Tree Protocol (RSTP)

For details of the L2 and L3 features, refer to the UA5000 Feature Description.

4 Networking Applications

About This Chapter

The typical applications of the UA5000 include xDSL access, subtending, QinQ, VLAN stacking, and triple play.

4.1 Typical Network Applications of Broadband Service

This topic describes the typical network applications of the UA5000 broadband service.

4.2 Typical Network Applications of Voice Service

This topic describes the typical network applications of the UA5000 voice service.

4.3 Integrated Access Service

The UA5000 can be used as an AG in the NGN. In addition, the UA5000 supports the broadband access.

4.4 Typical Networking Applications of the FTTx Service

This topic describes the typical networking applications of the FTTx service provided by the UA5000.

4.1 Typical Network Applications of Broadband Service

This topic describes the typical network applications of the UA5000 broadband service.

4.1.1 QinQ Networking Application

The UA5000 supports the QinQ networking application. Such a networking application saves the public VLAN ID resources, and facilitates the MP2MP interconnection between private line subscribers across the MAN.

4.1.2 VLAN Stacking Application

The UA5000 supports the VLAN stacking to provide the VLAN extension and the multi-ISP wholesale service for subscribers.

4.1.3 Triple Play Application

The UA5000 can simultaneously provide voice, data, and video services for subscribers with appropriate QoS. Such a scenario is called triple play.

4.1.1 QinQ Networking Application

The UA5000 supports the QinQ networking application. Such a networking application saves the public VLAN ID resources, and facilitates the MP2MP interconnection between private line subscribers across the MAN.