Specifications

Configuring and Managing Cisco Access Servers and Dial Shelves
How to Configure Dial Shelves
DC-114
Cisco IOS Dial Technologies Configuration Guide
The Dial Shelf Interconnect Protocol (DSIP) is used for communication between router shelf and dial
shelf on an AS5800. Figure 22 diagrams the components of the architecture. The router shelf is the host
for DSIP commands, which can be run remotely on the feature boards of the dial shelf using the
command, execute-on. DSIP communicates over the packet backplane via the dial shelf interconnect
(DSI) cable.
Figure 22 DSIP Architecture in the Cisco AS5800
Split Dial Shelves Feature
The split dial shelves feature provides for doubling the throughput of the Cisco AS5800 access server
by splitting the dial shelf slots between two router shelves, each router connected to one Dial Shelf
Controller (DSC), two of which must be installed in the system. Each router shelf is configured to control
a certain set from the range of the dial shelf slots. Each router shelf will operate as though any other slots
in the dial shelf contained no cards, even if there is a card in them, because they are controlled by the
other router shelf. Thus the configuration on each router shelf would affect only the “owned” slots.
Each router shelf should own modem cards and trunk cards. Calls received on a trunk card belonging to
one router shelf cannot be serviced by a modem card belonging to the other router shelf. Each router
shelf operates like a single Cisco AS5800 access server system, as if some slots are unavailable.
Refer to the section “Configuring Dial Shelf Split Mode” for more information about configuring split
dial shelves.
How to Configure Dial Shelves
To configure and maintain dial shelves, perform the tasks in the following sections:
• Configuring the Shelf ID
• Configuring Redundant DSC Cards
• Synchronizing to the System Clocks
• Configuring Dial Shelf Split Mode
• Executing Commands Remotely
• Verifying DSC Configuration
Packet back plane
Router shelf
Feature board
DSIP
DSIP
Feature board
DSIP
Feature board
DSIP
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