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8 Alcatel-Lucent 1540 Litespan
FEATURES
POTS card integrates ringing and testing
GigaEthernet network interface
Voice controller and servers hot switchover
MultiDSL (ADSL, ADSL2 and ADSL2plus)
Multiple virtual circuits (VCs) allocated
per end-user
IGMP (V3) proxy and snooping for multicast
transmission of video streaming
Higher scalability and capacity of VoIP server card
New Layer 2 and routing protocols and security
features
Wire-speed architecture
BENEFITS
The 32-port POTS board integrates the ringing and testing functionality previously provided by dedicated
boards in the system. Integration frees up more slots for services. Together with the available configuration
of four multiservice line shelves (MLSs) per indoor rack, this increases your system capacity to 2,556 POTS
lines in a single rack. Litespan RUs can be subtended from SDH Litespan hubs through an external
transport G.703 link.
xDSL traffic can be redirected toward the backbone through a GigaEthernet port (1000Base-SX, 1000Base-LX,
1000Base-EX, 1000Base-ZX and 1000Base-TX). As a result, your flexibility is increased when connecting to
the IP data backbone through metro Ethernet networks.
A more reliable architecture for the system’s narrowband controllers is now available. Your subscribers’
voice calls are not interrupted in case the controller fails while the spare is taking over.
Using different implementations of ADSL technology, the Alcatel-Lucent 1540 Litespan assures you a best-
in-class operation for broadband services in copper loops.
Using the Alcatel-Lucent 1540 ADSL boards, several virtual circuits can be established between the ADSL
port and the end-user router. Each VC is devoted to a broadband service (HSIA, video, VoIP, etc.) assuring
that no service can degrade the quality of any other.
The Alcatel-Lucent 1540 Litespan uses the IGMP proxy/snooping protocols, allowing a multicast
transmission of IP and optimizing bandwidth resources while delivering IPTV.
The VoIP server card (VISC) offers up to 508 active calls. A system can include up to 4 VISCs for serving up
to more than 4,000 subscribers. Media gateway functionality is provided for handling POTS, ISDN BA and
ISDN PRA connections. An integrated announcement server and a multiparty conference system are also
incorporated.
The Alcatel-Lucent 1540 Litespan is protected against several types of external attacks such as hijacking
sessions, distributed denial of service (DDOS), as well as food attacks. It incorporates the following
protocols and security features, among others:
Protocols
•
VLAN Q-in-Q
•
IEEE 802.3ad Ethernet link aggregation
•
PPPoA, PPPoE, PPPoE relay
Security
•
IP address anti-spoofing
•
MAC address anti-spoofing
•
MAC filtering
•
DHCP incoming message rate control
The wire-speed architecture enables the bottleneck-free provisioning of high-bandwidth services, such as
IPTV or VoD. This assures QoS by avoiding transmission delay and delivering the appropriate performance
in the end-to-end system.
Significant Features – Significant Benefits
As a robust, scalable access platform, the Alcatel-Lucent 1540 Litespan supports voice, data and video services in any
transport option. Table 1 summarizes the most important features and benefits of the Alcatel-Lucent 1540 Litespan.
Table 1. Alcatel-Lucent 1540 Litespan Features and Benefits
•
Broadcast storm control
•
L2/L3/L4 filtering
•
MAC flooding prevention
•
802.1x authentication
•
AAA server and RADIUS client
•
RIP
•
OSPF
•
Spanning Tree (RSTP)
•
DHCP relay option 82