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PA-2FE-TX and PA-2FE-FX Two-Port Fast Ethernet Port Adapter Installation and Configuration
OL-3474-07
Chapter 1 Overview
Identifying Interface Addresses
Note In Cisco 7200 series routers, Cisco 7200 VXR routers, and Cisco uBR7200 series routers, port adapter
slot 0 is reserved for the Fast Ethernet port on the I/O controller, if present.
Cisco 7120 Router and Cisco 7140 Router Interface Addresses
In the Cisco 7120 series router, port adapters are installed in port adapter slot 3. See Figure 1-10. In the
Cisco 7140 series router, port adapters are installed in port adapter slot 4. See Figure 1-11.
The interface address is composed of a two-part number in the format
port-adapter-slot-number/interface-port-number. See Table 1-4. For example, if a dual-port PA-2FE is
installed on a Cisco 7120 router, the interface addresses would be 3/0 and 3/1. If a dual-port PA-2FE is
installed on a Cisco 7140 router, the interface addresses would be 4/0 and 4/1.
Cisco 7200 Series Routers and Cisco 7200 VXR Routers Interface Addresses
In Cisco 7200 series routers and Cisco 7200 VXR routers, port adapter slots are numbered from the
lower left to the upper right, beginning with slot 1 and continuing through slot 2 for the Cisco 7202,
slot 4 for the Cisco 7204 and Cisco 7204VXR, and slot 6 for the Cisco 7206 and Cisco 7206VXR. Port
adapters can be installed in any available port adapter slot from 1 through 6 (depending on the number
of slots in the router). (Slot 0 is reserved for the I/O controller.) See Figure 1-12.
The interface address is composed of a two-part number in the format
port-adapter-slot-number/interface-port-number. See Table 1-4. For example, if a dual-port PA-2FE is
installed in slot 1of a Cisco 7200 series router, the interface addresses would be 1/0 and 1/1 (slot 1 and
ports 0 and 1). If the dual-port PA-2FE were installed in slot 4, the interface addresses would be 4/0 and
4/1 (slot 4 and ports 0 and 1)
Cisco 7201 router Port-adapter-slot-number/interface-port-number Port adapter slot—always 1
Interface port—0 or 1
1/0
Cisco 7301 router Port-adapter-slot-number/interface-port-number Port adapter slot—always 1
Interface port—0 or 1
1/0
Cisco 7304 PCI port adapter
carrier card in Cisco 7304
router
Module-slot-number/interface-port-number Module slot— slot 2 through
5
Interface port—0 or 1
3/0
Cisco 7401ASR router Port-adapter-slot-number/interface-port-number Port adapter slot—always 1
Interface port—0 or 1
1/0
VIP in Cisco 7500 series
routers
Interface-processor-slot-number/port-adapter-slot-
number/interface-port-number
Interface processor slot—0
through 12 (depends on the
number of slots in the
router)
Port adapter slot— 0 or 1
Interface port—0 or 1
3/1/0
Table 1-4 Identifying Interface Addresses (continued)
Platform Interface Address Format Numbers Syntax