Cisco 2620 User Manual

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Software Configuration Guide For Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
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Chapter1 Understanding Interface Numbering and Cisco IOS Software Basics
Understanding Interface Numbering
• 3 slots in which you can install WAN or voice interface cards
• 4 network module slots.
Cisco 3745 Router Slot Numbering
The numbering format in the Cisco 3745 router is Interface type Slot number/Interface number. Two
examples are:
FastEthernet0/0
Serial 1/2.
The slot numbers are as follows:
• 0 for all built-in interfaces
• 0 for all WIC interfaces
• 1 for the lower right network module slot
• 2 for the lower left network module slot
• 3 for the upper right network module slot
• 4 for the upper left network module slot
If double-wide network modules are installed, the slot numbers are as follows:
• 2 for the lower double-wide slot
• 4 for the upper double-wide slot
Interface (port) numbers begin at 0 for each interface type, and continue from right to left and (if
necessary) from bottom to top.
Figure1-11 shows the rear panel of the Cisco 3745 with:
• A WIC in each of the three WAN interface card slots
• A single-width network module in each of the four network module slots
• Two AC power supplies

Cisco 2620 Specifications

General

Brand	Cisco
Model	2620
Category	Network Router
Language	English