Cisco 3825 Hardware Installation Guide - Page 109

Chapter 5 Connecting Serial Network Modules Asynchronous Network Module Interface Numbering 32-port asynchronous module, or some other type of module-or even whether there is a network module in slot 0 at all. If you move the module in slot 1 to a different slot, however, its interface numbers change. Note The Cisco MWR 1941-DC router has one network module slot (slot 1). Table 5-4 shows the range of interface numbers available for each type of asynchronous network module in each Cisco 3600 series router slot. (Interface 0 is automatically assigned to the console.) Table 5-4 Cisco 3600 Series 16- and 32-Port Asynchronous Network Module Interface Numbering Slot Number 0 1 2 3 4 5 6 Interface Numbers (16-Port Module) 1-16 33-48 65-80 97-112 129-144 161-176 193-208 Interface Numbers (32-Port Module) 1-32 33-64 65-96 97-128 129-160 161-192 193-224 Cisco 2600 Series and Cisco MWR 1941-DC Router Serial Interface Numbering Interface numbering for Cisco 2600 series and Cisco MWR 1941-DC routers differ from Cisco 3600 series interface numbering in the following ways: • WAN interface card slot numbers always appear as slot 0, even if the interface card is installed in the slot labeled W1. • WAN interface cards are numbered dynamically, starting with the first card installed. For example: - If slot W0 is empty and slot W1 contains a 1-port serial WAN interface card, the interface number is serial 0/0. - If slot W0 contains a 2-port serial WAN interface card and slot W1 contains a 1-port serial interface card, serial 0/0 and 0/1 reside in slot W0 and serial 0/2 resides in slot W1. OL-2485-20 Cisco Network Modules Hardware Installation Guide 5-7