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Hardware Installation Guide for the Cisco 4000 Series Integrated Services Router
OL-32185-02
Chapter 1 Overview of Cisco 4000 Series ISRs
Slots, Subslots (Bay), Ports, and Interfaces in Cisco 4000 Series ISRs
Slot Numbering
Slots are numbered 0, 1, and 2.
About Slot 0
The following are the main features of Slot 0:
• Slot 0 is the motherboard and not removable. It is reserved for integrated ports and NIMs.
• NIMs are designated by the number of the first slot that they occupy. A double-wide NIM occupies
two slots, but its designation is only the left-most slot number.
• The front panel GE ports (or native interface ports) always reside in slot 0 and bay 0. The ports are
called Gigabitethernet 0/0/0, Gigabitethernet 0/0/1, Gigabitethernet 0/0/2, and Gigabitethernet 0/0/3
(up to as many ports supported on the particular router).
• PVDM4s do not have an external slot number. Therefore, the nomenclature for PVDM4s always has
0 in the first tuple. For example, the 3-tuple for an PVDM4 can be 0/4/x.
Subslot/Bay Numbering
• Integrated devices, also known as integrated ports or FPGEs, and integrated NIMs reside in a fixed
section of bay 0.
• Main board NIMs bays start at bay 1, because the integrated devices and integrated NIMs take up
bay 0.
• The bay numbers for PVDM4s start with the next bay number after the last NIM bay number.
Gigabit Ethernet Management
Cisco 4000 Series ISRs provides a Gigabit Ethernet Management port, called GE0. This port is the only
1-tuple port on the system. See the Gigabit Ethernet Management Port section in the Software
Configuration Guide for the Cisco ISR 4400 Series and Cisco ISR 4300 Series Routers for additional
information about the Gigabit Ethernet Management port.
7 SFP 2/Gigabit Ethernet port (GE 0/0/2) 8 RJ-45 Gigabit Ethernet port (GE 0/0/2)
9 RJ-45 Gigabit Ethernet port GE 0/0/3 1
0
SFP 3/Gigabit Ethernet GE 0/0/3
11 SFP 1/Gigabit Ethernet GE 0/0/1 1
2
RJ-45 Gigabit Ethernet port GE 0/0/1
1
3
Console port 1
4
USB port 1
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