Cisco 3725 Software Configuration Guide - Page 22

Understanding Interface Numbering Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics Table 1-1 Router Models Model Cisco 2610 Cisco 2610XM Cisco 2611 Cisco 2611XM Cisco 2612 Cisco 2613 Cisco 2620 Cisco 2620XM Cisco 2621 Cisco 2621XM Cisco 2650 Cisco 2650XM Cisco 2651 Cisco 2651XM Cisco 2691 Ethernet (10BASE-T) 1 2 1 Token-Ring (RJ-45) 1 1 WAN Fast Ethernet Network Interface (10/100) Module Slot Card Slots 1 2 1 1 2 1 2 2 1 2 1 2 1 2 1 1 2 1 1 2 2 1 2 2 1 2 1 1 2 1 1 2 2 1 2 2 1 2 2 1 3 Advanced Integration Module Slots 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 Note The number and type of interfaces vary depending on the router. WAN and LAN Interface Numbering The Cisco 2600 series router chassis contains the following wide-area network (WAN) and local-area network (LAN) interface types: • Built-in LAN interfaces: Ethernet, FastEthernet, Token Ring • Two or three slots in which you can install WAN interface cards (WICs) • One slot in which you can install a network module The numbering format is Interface-type Slot-number/Interface-number. Two examples are: Ethernet 0/0 Serial 1/2 The slot number is 0 for all built-in interfaces and 0 for all WIC interfaces; the slot number is 1 for network module interfaces. Software Configuration Guide For Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers 1-2 OL-1957-04