Cisco 2811 Hardware Guide - Page 33
Slot Number, Slot Type, Interface Numbering Range, Port Location, Examples, Table 7
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Interface Numbering Table 7 Interface Numbering on Cisco 2801 Series Routers Slot Number Slot Type Interface Numbering Range Onboard ports Fast Ethernet 0/0 and 0/1 0 VIC / VWIC (voice only) 0/0/0 to 0/0/3 1 HWIC / WIC / VIC / VWIC1 0/1/0 to 0/1/3 (single-wide HWIC) 0/1/0 to 0/1/7 (double-wide HWIC) 2 WIC / VIC / VWIC1 0/2/0 to 0/2/3 3 HWIC / WIC / VIC / VWIC1 0/3/0 to 0/3/3 (single-wide HWIC) 0/3/0 to 0/3/7 (double-wide HWIC) 1. A VWIC in slots 1, 2, and 3 can operate in both data and voice mode; in slot 0, a VWIC can operate only in voice mode. Note On the Cisco 2801 router, the numbering format for configuring an asynchronous interface is 0/slot/port. To configure the line associated with an asynchronous interface, simply use the interface number to specify the async line. For example, line 0/1/0 specifies the line associated with interface serial 0/1/0 on a WIC-2A/S in slot 1. Similarly, line 0/2/1 specifies the line associated with interface async 0/2/1 on a WIC-2AM in slot 2. Table 8 Interface Numbering on Cisco 2811, Cisco 2821, and Cisco 2851 Integrated Services Routers Port Location Interface Numbering Scheme Built into the chassis front panel Interface-type port Built into the chassis rear panel Interface-type 0 / port In an interface card (HWIC, HWIC-D, WIC, VWIC, VIC) plugged directly into an HWIC slot in a chassis Interface-type 0 / interface-card-slot3 / port Note Interface card slots built into the chassis are labeled HWIC slot-number on Cisco 2800 series routers. In an interface card (WIC, VWIC, VIC) plugged into a slot in a network module Interface-type 15 / interface-card-slot / port Built into a network module (NME, NME-X, NMD, NME-XD) Interface-type 15 / port FXS or FXO port in an extension Interface-type 26 / 07 / port voice module (EVM) FXS/DID port numbers 0 to 7 are built into the EVM. FXS/FXO port numbers 8 to 15 are in expansion module 0. FXS/FXO port numbers 16 to 23 are in expansion module 1. Examples1, 2 usb 0 usb 1 interface fa 0/x interface gi 0/x interface serial 0/x/y interface async 0/x/y line 0/x/y4 interface fa 0/x/y voice-port 0/x/y controller t1 1/x/y voice-port 1/x/y interface serial 1/x/y interface async 1/x/y line 1/x/y4 interface gi 1/x interface serial 1/x interface async 1/x line 1/x4 voice-port 2/0/x OL-5783-01 Overview of Cisco 2800 Series Routers 17