Identifying Interface Addresses; Cisco 7100 Series Routers Interface Addresses - Cisco PA-4B-U Installation And Configuration Manual

Identifying Interface Addresses

Identifying Interface Addresses
This section describes how to identify the interface addresses for the PA-4B-U in supported platforms.
Physical port addresses specify the actual physical location of each interface port on the router. This
address is composed of a two-part number format port adapter slot number/interface port number, as
follows:
•
•
Interface ports on a PA-4B-U maintain the same address regardless of whether other port adapters are
installed or removed. However, when you move a port adapter to a different slot, the first number in the
address changes to reflect the new slot number.
The following subsections describe the interface address formats the supported platforms:
•
•
•
Table 1-3
Table 1-3 Identifying Interface Addresses
Platform
Cisco 7120 series router
Cisco 7140 series router
Cisco 7200 series routers and
Cisco 7200 VXR routers
(Cisco 7202, Cisco 7204,
Cisco 7206, Cisco 7204VXR,
Cisco 7206VXR)
Cisco 7301 router

Cisco 7100 Series Routers Interface Addresses

In the Cisco 7120 series router, port adapters are installed in port adapter slot 3. See
Cisco 7140 series router, port adapters are installed in port adapter slot 4. See
The interface address is composed of a two-part number in the format
port-adapter-slot-number/interface-port-number. See
installed on a Cisco 7120 router, the interface addresses would be 3/0 through 3/3. If a four-port
PA-4B-U is installed on a Cisco 7140 router, the interface addresses would be 4/0 through 4/3.
PA-4B-U Basic Rate Interface Port Adapter Installation and Configuration
1-6
The first number identifies the chassis slot in which the PA-4B-U is installed.
The second number identifies the interface ports on each PA-4B-U, which are always numbered in
sequence as interface 0 through 3.
Cisco 7100 Series Routers Interface Addresses, page 1-6
Cisco 7200 Series Routers and Cisco 7200 VXR Routers Interface Addresses, page 1-7
Cisco 7301 Router Interface Addresses, page 1-7
summarizes the interface address formats for the supported platforms.
Interface Address Format
Port-adapter-slot-number/interface-port-number
Port-adapter-slot-number/interface-port-number
Port-adapter-slot-number/interface-port-number
Port-adapter-slot-number/interface-port-number
Numbers
Port adapter slot—always 3
Interface port—0 or 1
Port adapter slot—always 4
Interface port—0 or 1
Port adapter slot—1 through
6 (depends on the number of
slots in the router)
Interface port—0 or 1
Port adapter slot—always 1
Interface port—0 or 1
Figure
Table 1-3. For example, if a four-port PA-4B-U is
Chapter 1 Overview
Syntax
3/0
4/0
1/0
1/0
Figure 1-5. In the
1-6.
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