Cisco 3825 Software Configuration Guide - Page 79
Understanding the Cisco 3825 Router Interface Numbering, reload
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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 Note This configuration assumes that the Cisco 2-port T1/E1-RAN interface card is installed in all three Cisco 2-port T1/E1-RAN interface card slots (physical slots HWIC0, HWIC1, HWIC2, and HWIC3) of the Cisco 3825 router. Step 2 Router(config)# card type {e1 | t1} slot subslot Where: • e1-Card type E1. • t1-Cart type T1. • slot-Slot number of the interface. • subslot-Specifies the Cisco 2-port T1/E1-RAN interface card (serial slot) port number. For example, there is no Cisco 2-port T1/E1-RAN interface card located in the Cisco 3825 router serial slot 0 (physical slot HWIC0). So, the interface card is located in physical slot HWIC1. As a result, the following command configures the Cisco 2-port T1/E1-RAN interface card located in the Cisco 3825 router serial slot 0 (physical slot HWIC1), first port of the Cisco 2-port T1/E1-RAN interface card as a E1: Router(config)# card type e1 0 1 When the command is used for the first time, the configuration takes effect immediately. A subsequent change in the card type will not take effect unless you enter the reload command or reboot the router Specify the controller that you want to configure by entering the controller configuration mode. Controller E1 0/0/0 maps to the first port of the Cisco 2-port T1/E1-RAN interface card located in the Cisco 3825 router serial slot 0 (physical slot HWIC0). Controller E1 0/0/1 maps to the second port of the Cisco 2-port T1/E1-RAN interface card located in the Cisco 3825 router serial slot 0 (physical slot HWIC0). Note If you install a Cisco 2-port T1/E1-RAN interface card in the Cisco 3825 router in physical slot HWIC1 (leaving physical slot HWIC0 empty), the logical interfaces in physical slot HWIC1 become Serial 0/0/0 and Serial 0/0/1. If you later add a Cisco 2-port T1/E1-RAN interface card to physical slot HWIC0, the interface numbering shifts. The configuration that you created for logical interfaces Serial 0/0/0 and Serial 0/0/1 will now be applied to the Cisco 2-port T1/E1-RAN interface card in physical slot HWIC0, and you will need to create a new configuration for the logical interfaces that you previously configured on HWIC1 (which will now be Serial 0/1/0 and Serial 0/1/1). For more information about interface numbering, see Understanding the Cisco 3825 Router Interface Numbering, page 3-1. Router(config)# controller e1 slot/subslot/port Where: • slot-Number of the serial slot the 2-port T1/E1-RAN card is located in the Cisco 3825 router. • subslot-Number of the serial subslot the 2-port T1/E1-RAN card is located in the Cisco 3825 router. • port-Number of the serial port the 2-Port T1/E1-RAN card is using. OL-15667-03 Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide 4-21