Alcatel-Lucent 1540 manual Significant features significant benefits

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

Features	BENEFITS
POTS card integrates ringing and testing	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 multi-
	service 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.
GigaEthernet network interface	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.
Voice controller and servers hot switchover	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.
MultiDSL (ADSL, ADSL2 and ADSL2plus)	Using different implementations of ADSL technology, the Alcatel-Lucent 1540 Litespan assures you a best-in-class
	operation for broadband services in copper loops.
STM-16 ADM with Integrated Ethernet over SDH	Smoothly evolve a traditional TDM-based access network to a next-generation packet network. This significantly
	improves the service providers’ business case for migrating their access and aggregation from TDM to packet. The
	card enables data-aware usage of SDH transport capacity.

Multiple virtual circuits (VCs) allocated per end-user

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.

IGMP (V3) proxy and snooping for multicast	The Alcatel-Lucent 1540 Litespan uses the IGMP proxy/snooping protocols, allowing a multicast transmission of
transmission of video streaming	IP and optimizing bandwidth resources while delivering IPTV.
Higher scalability and capacity of VoIP server	The VoIP server card (VISC) offers up to 508 active calls. A system can include up to 4 VISCs for serving up to more
card	than 4,000 subscribers. Media gateway functionality is provided for handling POTS, ISDN BA and ISDN PRA connec-
	tions. An integrated announcement server and a multiparty conference system are also incorporated.

New Layer 2 and routing protocols and security features

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	• RIP
	• VLAN Q-in-Q	• OSPF
	• IEEE 802.3ad Ethernet link aggregation	• Spanning Tree (RSTP)
	• PPPoA, PPPoE, PPPoE relay	• DHCP relay option 82
	Security	• Broadcast storm control
	• IP address anti-spoofing	• L2/L3/L4 filtering
	• MAC address anti-spoofing	• MAC flooding prevention
	• MAC filtering	• 802.1x authentication
	• DHCP incoming message rate control	• AAA server and RADIUS client
Wire-speed architecture	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.

8Alcatel-Lucent 1540 Litespan