There are four Serial Interfaces in the P32mxi. These Interfaces are analogous to the Serial Channels on a Cisco router.
The bandwidth of a Serial Interface is only limited to the rate of the Network Interface it is connected to. For Serial Interfaces configured for ATM service, the entire Network Interface will be used (full bandwidth). For Frame Relay and PPP links, the bandwidth is set during configuration of each Serial Interface.
When the Serial Interface is crossconnected to the Network Interface, on the System Crossconnect screen set the Signaling type to Data. This sets all of the timeslots for Clear Channel (data) transport.
The Serial Interface Configuration screen shows graphically how different protocols are encapsulated inside of other protocols for transport over the Serial Interface link:
Click the Configure button on the right-hand side of the screen to configure all of the specific parameters for your desired encapsulation type. This brings up the Data Link Configuration screen:
The top part of the screen is common to all types of Data Link encapsulations. The graphic at the top right of the screen indicates the encapsulation type being configured. The Bandwidth section allows you to configure the Number of Timeslots and the rate (either 56K or 64K data) to be used for the interface. The above example is for a 256K (4 x 64K) Frame Relay link over Serial Interface 1 (S1).
For VPN support, a Tunnel can be added to the entire Serial Interface (see Adding Tunnels). NAT and DHCP services can also be enabled on the Interface (see Adding NAT).
Up to eight Data Links can be enabled for each Serial Interface. The same encapsulation type must be applied for each link. For specific instructions on provisioning the Data Links, see:
For all Data Links, once the link parameters have been set remember to check the Enable Data Link box to turn the link on.
Next: Provisioning the Router
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