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Cisco 880 Series Integrated Services Router Software Configuration Guide
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Chapter 3 Basic Router Configuration
Configuring WAN Interfaces
The following examples assum e th e DSLAM is configured in either ADSL2+ mode or VDSL2, and the
CPE is configured in auto mode.
Figure 3-1 shows an ATM WAN or Ethernet WAN net work topog raphy.
Figure 3-1 Example Topology
Note A DSLAM in La yer 1 mo de may be co nfigure d for auto mo de. A DSLAM in L ayer 2 mo de must be
configured for ATM mode or packet transfer mode (PTM).
Note Cisco 886VA and 887VA allow a maximum of four permanent virtual circuits (PVCs).

Configuring ADSL Mode

Configuration tasks
Perform the following tasks to configure ADSL mode:
Configuring ADSL Auto Mode
Configuring CPE and Peer for ADSL Mode
ADSL Configuration Example
Verifying ADSL Configuration