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9-2 LightStream 1010 ATM Switch PAM Installation Guide
Overview of the 25-Mbps Port Adapter Module
Figure 9-1 25-Mbps PAM
Each port on the PAM supports single, local clocking only.
Traffic-pacing allows the aggregate output traffic rate on port group 0 to 5 or 6 to 11 to be
set to a rate below the line rate; this is useful when communicating with a slow receiver.
Pacing cannot be done on any individual port but on a group of six ports.
The plug-and-play mechanisms of the LightStream 1010 allow the switch to come up
automatically. All configuration information for port adapter modules can be saved
between hot swaps and switch reboots, while interface types are automatically discovered
by the switch. This eliminates mandatory manual configuration.
The LightStream 1010 supports any combination of port adapter modules. Customers can
configure their switches with only the number and type of interfaces required, with up to
96 25-Mbps ports.
This section describes the following:
• 25 Mbps PAM Features
• 25 Mbps PAM Applications
H8799
ATM25-12 PORT
11
10
9
8
7
6
5
4
3
2
1
0