Cisco 1941W Configuration Manual page 124

Configuring Data Line Backup and Remote Management Through the ISDN S/T Port
Configuring Data Line Backup and Remote Management
Through the ISDN S/T Port
This section contains the following topics:
•
•
Cisco 3900 series routers can use the ISDN S/T port for remote management.
show two typical network configurations that provide remote management access and backup for the
primary WAN line.
Figure 2
digital subscriber line access multiplexer (DSLAM), and a central office (CO) splitter before connecting
to the ISDN switch.
Figure 2
1
2
3
4
5
6
7
8
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
116
Configuring ISDN Settings, page 117
Example, page 120
shows a dial backup link that goes through a customer premises equipment (CPE) splitter, a
Data Line Backup Through CPE Splitter, DSLAM, and CO Splitter
2
1
B
C
Cisco 3900 series router
DSLAM
ATM aggregator
ISDN switch
ISDN
ISDN peer router
Web server
Administrator
Chapter Configuring Backup Data Lines and Remote Management
A
3
ATM
network
4
6
5
A Primary DSL interface, FE interface (Cisco 3900
series router)
B Dial backup and remote management through the
ISDN interface (ISDN S/T port); serves as a
failover link when the primary line goes down
C
Provides administrator with remote management
capability through the ISDN interface when the
primary DSL link is down; serves as dial-in access
to allow changes or updates to Cisco IOS
configuration
Figure 2 and
Internet
7
8
Figure 3
OL-20696-04