Alcatel Carrier Internetworking Solutions Service Aggregation Router 7705 - Manual (Page 6)

Alcatel-Lucent 7705 Service Aggregation Router
T1/E1 Private Line Transport Capability
Figure 2. T1/e1 Private Line Transport Capability
T1/E1
T1/E1
T1/E1
T1/E1
T1/E1
T1/E1
T1/E1
5620 SAM
Highly Scalable T1/E1 fan-in
7705 SAR
T1/E1 transport over IP/MPLS
7705 SAR
7705 SAR
7705 SAR
The 7705 SAR can provide a T1/E1 private line
capability using circuit emulation over a packet
switched network, such as an IP/MPLS network.
This can be an example of fixed-mobile network
convergence, where the same transformed IP/
MPLS infrastructure can be used for both mobile
RAN backhaul and efficient support of legacy
private line services. The 7705 SAR brings a structured mode of
operation according to the IETF RFC CESoPS
where individual 64 kb/s timeslots within a
single T1/E1 can be sent to different destinations.
TDM traffic is packetized and encapsulated in
MPLS with configurable packetization, delay
and jitter buffer sizing. Traffic is then uploaded
to the core network via 10/100 Mb/s Ethernet,
Fast Ethernet, Gigabit Ethernet or n x T1/E1
MLPPP. A typical T1/E1 private line deployment
configuration is depicted in Figure 2.