Slot Numbering - Cisco Catalyst 8300 Series Hardware Installation Manual

Slot Numbering

Figure 11:
In all cases, the device designates its interfaces using a 3-tuple notation that lists the slot, bay, and port. The
3-tuple value is zero based. An example of a 3-tuple is 0/1/2. This refers to slot 0, the second bay in slot 0
(the first bay is 0 so the second bay is 1), and the third port in bay 1. See the following table for more examples.
Table 7: Slot, Subslot-Bay and Port Numbering
3-Tuple
Example
0/1/2
0/0/1
1/1/1
• Slots and bays are numbered from the left to the right, and from the top to the bottom.
• The two USB ports are named USB0 and USB1. They do not have slot or bay numbers.
Note
Slot Numbering
Slots are numbered 0, 1, and 2.
About Slot 0
The following are the main features of Slot 0:
• Slot 0 is reserved for integrated ports and NIMs, it can be used for either SM or NIM.
• NIMs are designated by the number of the first slot that they occupy. A double-wide SM occupies two
• The ten GE ports (or native interface ports) always reside in slot 0 and bay 0. The ports are called
Subslot and Bay Numbering
• Integrated devices, also known as integrated ports or FPGEs, and NIMs reside in a fixed section of bay
• Motherboard NIMs bays start at bay 1 because the integrated devices and integrated NIMs take up bay
Hardware Installation Guide for Cisco Catalyst 8300 Series Edge Platforms
14
Slot
0
0
1
USB0 and USB1 can be used to insert flash drives.
slots, but its designation is only the left-most slot number.
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).
0.
0.
Bay Port
2nd 3rd
1st 2nd
2nd 2nd
Overview