Figure 10: Dual Router - Dual (Layer 2 Or Layer 3) Switch Topology Network Example - Alcatel-Lucent 7750 SR OS Interface Configuration Manual

Port Features
BITS I/F
T1 # 2
EV-DO
BTS
T1 # 1
RAN Data VLAN
Inter-Router VLAN
Hand-off Network VLAN
Figure 10: Dual Router – Dual (Layer 2 or Layer 3) Switch Topology Network Example
Figure 10
access cross-connect system (DACS) and deliver T-1/E-1 channels that terminate on the service
router.
7750 and 7710 service routers support APS on channelized interfaces. This allows Alcatel-
Lucent's service routers to be deployed as the radio access network (RAN) aggregation router
which connects the base transceiver station (BTS) and the radio network controller (RNC).
Page 62
Aggregation
DHCP Relay
Router B
PRS T3/OC-3/
OC-12
VRRP
DACS
T3/OC-3/
OC-12
Aggregation
DHCP Relay
Router A
PDSN, AAA VLAN
OAM VLAN
depicts multiple OC-3/STM-1 and/or OC-12/STM-4 links terminating from the digital
7750 SR OS Interface Configuration Guide
OAM PDSN, AAA
MLS B
GigE
GigE
OSPF
Area
GigE
GigE GigE
GigE
MLS A
Hand-off Network
GigE
AP
Switch
B
TP
TP
GigE
AP
TP
Switch
TP
A
OSSG143