Wan And Lan Interface Numbering - Cisco 2620 Configuration Manual

Understanding Interface Numbering
Table 1-1
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
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:
•
•
•
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
Router Models
Ethernet Token-Ring
(10BASE-T) (RJ-45)
1
2
1 1
1
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
Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics
Fast Ethernet Network
(10/100) Module Slot
1
1 1
1
2 1
1
1
1 1
1 1
2 1
2 1
1 1
1 1
2 1
2 1
2 1
WAN Advanced
Interface Integration
Card Slots Module Slots
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
3 2
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