Specifications

Second-Generation Fast Ethernet Interface Processor (FEIP2) Installation and Configuration 31
Configuring the Fast Ethernet Interfaces
Selecting Interface Processor Slot, Fast Ethernet Interface, and Interface Port Numbers
This section describes how to identify interface processor slot, FE interface, and interface port
numbers.
Note Although the interface processor slots in the Cisco 7000, Cisco 7507, and Cisco 7513 are
vertically oriented and those in the Cisco 7010 and Cisco 7505 are horizontally oriented, all models
use the same method for slot and port numbering.
In the router, physical port addresses specify the actual physical location of each interface port on
the router interface processor end. (See the example of an FEIP2-2TX shown in Figure 23.) This
address is composed of a three-part number in the format interface processor slot number/adapter
number/interface port number.
• The first number identifies the chassis interface processor slot in which the FEIP2 is installed (as
shown in the example system in Figure 23).
• The second number identifies the physical FE interface on the FEIP2 and is slot 0 (on the left)
and slot 1 (on the right).
• The third number identifies the FE interface port, which is always numbered as interface 0.
Interface ports on the FEIP2 maintain the same address regardless of whether other interface
processors are installed or removed. However, when you move an FEIP2 to a different slot, the first
number in the address changes to reflect the new interface processor slot number.
Figure 23 shows the interface processor slots and interface ports of a sample Cisco 7505 system. On
the FEIP2-2TX, the first FE interface number is 0 and the second is 1. For example, on the FEIP2 in
slot 3 (shown in Figure 23), the address of the left (first) FE interface is 3/0/0 (interface processor
slot 3, FE interface 0, and interface port 0). The address of the right (second) FE interface is 3/1/0
(interface processor slot 3, FE interface 1, and interface port 0).
Note If you remove the FEIP2-2TX from slot 3 and install it in interface processor slot 2, the
addresses of these FE interfaces become 2/0/0 and 2/1/0.