Specifications

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Cisco PA-FE-TX and Cisco PA-FE-FX Fast Ethernet 100BASE-T Port Adapter Installation and Configuration
OL-2899-02
Chapter 1 Overview
Identifying Interface Addresses
Interface Addresses of Cisco 7500 Series Routers with VIP
The Cisco 7500 series routers accepts modules installed with a Versatile Interface Processor (VIP). The
interface address of the modules is composed of a three-part number in the format slot/bay/port-number.
The first number identifies the slot of the router in which the VIP is installed (slot 0 through 12,
depending on the number of slots in the router). These module slots are numbered from bottom to top
starting with 0.
The second number identifies the bay of the VIP in which the additional module is installed (0 or 1). The
bays are numbered from left to right on the VIP.
The third number identifies the physical port number on the module. The port numbers always begin at
1 and are numbered from left to right. The number of additional ports (n/1, n/2, and so on) depends on
the number of ports on the module.
Note Although the processor slots in the 7-slot Cisco 7507 and the 13-slot Cisco 7513 and Cisco 7576 are
vertically oriented and those in the 5-slot Cisco 7505 are horizontally oriented, all Cisco 7500 series
routers use the same method for slot and interface port numbering.
If the VIP is installed in slot 3, and the module is installed in bay 1 of the VIP and has a total of 8 ports,
the interface addresses of the module are 3/1/0 through 3/1/7 (slot 3, bay 1, ports 0 through 7). If you
remove the VIP with the module from slot 3 and install it in slot 2, the interface addresses become 2/1/0
through 2/1/7. If the module was in bay 0 of the VIP, these same interface addresses would be numbered
2/0/0 through 2/0/7.