Specifications

3-11
Cisco AS5x00 Case Study for Basic IP Modem Services
11/24/1999
Section 3 Commissioning the Cisco AS5800 Hardware
Verifying Basic Setup
1.3 Inspecting the Dial Shelf
Verify that the feature boards are up (T3, T1, E3, E1, modem, or voice):
Router#show dial-shelf
Slot Board CPU DRAM I/O Memory State Elapsed
Type Util Total (free) Total (free) Time
0 CT3 0%/0% 21598976( 81%) 8388608( 41%) Up 00:01:35
2 Modem(DMM) 20%/20% 46764800( 86%) 16777216( 74%) Up 00:01:35
3 Modem(DMM) 0%/0% 46764800( 86%) 16777216( 74%) Up 00:01:35
4 Modem(DMM) 20%/20% 46764800( 86%) 16777216( 74%) Up 00:01:35
5 Modem(DMM) 20%/20% 46764800( 86%) 16777216( 74%) Up 00:01:35
6 Modem(DMM) 40%/40% 46764800( 86%) 16777216( 74%) Up 00:01:35
7 Modem(DMM) 40%/40% 46764800( 86%) 16777216( 74%) Up 00:01:35
8 Modem(DMM) 35%/35% 46764800( 86%) 16777216( 74%) Up 00:01:35
9 Modem(DMM) 0%/0% 46764800( 86%) 16777216( 74%) Up 00:01:35
10 Modem(DMM) 20%/20% 46764800( 86%) 16777216( 74%) Up 00:01:34
12 DSC 0%/0% 19097792( 79%) 8388608( 66%) Up 00:02:49
Dial shelf set for auto boot
Router#
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Always power up the dial shelf before the router shelf. Allow two to three minutes for the DSC card
to take an inventory of the dial shelf.
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If the DSC card goes down after the feature boards are up, the system will still function properly.
This event will not bring down the system. However, online insertion and removal (OIR) will not
work.
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Possible dial-shelf states include: unknown, down, resetting, booting, and up. The “Up” state means
that the card can communicate with the router shelf.
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Each modem board contains its own DRAM memory. Double-density modem modules (DMM)
require at least 64 MB of memory with Release 12.0. Hex modem modules (HMM) require at least
32 MB with Release 11.3. Each card performs its own call processing.
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A fully populated DMM card contains 144 modems. The dial shelf in this case study contains
1296 modems.
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A normal CPU utilization range for modem boards is between 20% to 40%.
DSC Troubleshooting Tips
If the DSC card does not come up, perform the following troubleshooting steps. If the DSC card
never
comes up, the feature boards in the dial shelf cannot communicate with the router shelf.
Step 1
Look for LED lights on the DSC card. If the lights are off, try re-seating the card.
Step 2
Verify that the DSI port adapter on the Cisco 7206 is inserted correctly.
Step 3
Verify that the cable between the DSI port adapter and the DSC card is connected correctly.