Cisco Systems 3825 Configuring PVC Routing (HSDPA Offload)

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Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide
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Chapter 4 Configuring the Cisco 3825 Mobile Wireless Edge Router in a RAN-O Solution with the Command-Line
Configuration Sequence
Configuring PVC Routing (HSDPA Offload)
A new feature, PVC Routing has been implemented in Cisco IOS Release 12.4(4)MR. With this feature,
you can now off load PVC traffic from a physical ATM shorthaul to an alternate backhaul. For each
alternate backhaul, you will need to create a logical shorthaul by creating an ATM sub-interface. Traffic
from the PVCs configured under this logical shorthaul will go through the corresponding alternate
backhaul. Three new commands are added using the Sub-interface Configuration mode for this new
feature: atm umts, umts local, and umts remote (see Appendix A, “Cisco 3825 Mobile Wireless Edge
Router RAN-O Command Reference” for detailed command information).
To configure a Cisco 3825 router for PVC Routing, follow these steps while in the global configuration
mode:
Step 1 First, add the Gigabit Ethernet interfaces by specifying the port adapter type and the location of the
interface to be configured.
Router(config)# interface gigabitethernet slot / port
The slot represents the main fixed slot and is always 0 and th e port is the number of the port (0 or 1).
For example, the following command specifies the slot number as 0 and the port number as 0:
Router(config)# interface gigabitethernet 0/0
Step 2 Assign an IP address and subnet mask to the interface.
Router(config-if)# ip address ip_address subnet_mask
For example, the following command specifies the IP address 192.168.1.1 and subnet mask
255.255.255.0:
Router(config-if)# interface ip address 192.168.1.1 255.255.255.0
Step 3 Specify the duplex operation.
Router(config-if)# duplex [auto | half | full]
For example, the following command specifies the duplex operation as auto:
Router(config-if)# duplex auto
Step 4 Specify the speed.
Router(config-if)# speed [auto | 1000 | 100 | 10]
For example, the following command specifies the speed as auto:
Router(config-if)# speed auto
Step 5 Exit the interface configuration mode.
Router(config-if)# exit
Step 6 Enter interface configuration mode and specify the location of the interface.
Router(config)# interface atm slot /subslot/ port
Where:
• slot—Specifies the slot number of the VWIC/HWIC previously assigned to the AIM for ATM
(Step 2 of the “Configuring UMTS Links” procedure on page 4-24).
• subslot—Specifies the subslot number of the VWIC/HWIC previously assigned to the AIM for ATM
card (Step 2 of the “Configuring UMTS Links” procedure on page 4-24).