Riverstone Networks Network Device SSG - Manual (Page 5)

ATM/T1 High-Speed Links
Intelligent network applications require increasing
network capacity. By supporting High-Speed
Links (HSLs), as shown in Figure 1, the Alcatel
5070 SSG ANSI provides connectivity with fewer
transmission facilities, reduces signaling latency
for faster signaling response time, and delivers
higher message capacity, overcoming signaling
link-set limitations. The Alcatel 5070 SSG ANSI
gives providers these network benefits without
sacrificing SS7 connectivity and signaling.
T1 cards support signaling ATM adaptation layer
(SAAL) for transport of ATM messages to MTP
layers (MTP2 and MTP3) of the SS7 protocol,
as shown in Figure 1.
Flexible Routing
Flexible Routing is Alcatel’s patented message
detection and routing framework for the Alcatel
5070 SSG ANSI. Within this framework, the
Alcatel 5070 SSG ANSI can perform numerous
type of applications, such as Number Portability
or Application Location Register (ALR).
A L C AT E L 3 >
Figure 1 - Alcatel 5070 SSG High-Speed Link Capability
GTT DB
SCCP
Routing
MTP3
MSU
Queues
MTP2
M2PA/SCTP
or SAAL
MSU
Queues
SS7/IP
8 Virtual Connections
100Base-T
High-Speed
Links
Low-Speed
Links
ATM/T1
1,536 Mb/s Link
56 kb/s Link
56 kb/s Link
56 kb/s Link