Selecting Port Adapter Slot And Serial Interface Port Numbers - Cisco PA-2CT1 Installation And Configuration Manual

Table 6
Keywords by Area
North America
basic-5ess
basic-dms100
basic-ni1
primary-4ess
primary-5ess
primary-dms100
New Zealand
basic-nznet3
For complete descriptions of interface commands and the configuration options available for
Cisco 7200 series-related interfaces, refer to the publications listed in the section "Related
Documentation" section on page 2.

Selecting Port Adapter Slot and Serial Interface Port Numbers

This section describes how to identify port adapter slot and 2CT1 port adapter interface numbers.
Physical port addresses specify the actual physical location of each interface port on the router. (See
Figure 21.) This address is composed of a two-part number in the format port adapter slot
number/interface port number, as follows:
•
The first number identifies the chassis slot in which the 2CT1 port adapter is installed.
•
The second number identifies the interface ports on each 2CT1 port adapter, which are always
numbered in sequence as interface 0 and 1.
Interface ports on the 2CT1 port adapter 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.
Figure 21 shows the interface ports of a 2CT1 port adapter in slot 1 of a Cisco 7206 router. The
individual interface port numbers always begin with 0. The number of additional ports depends on
the number of ports on a port adapter. Port adapters can occupy any port adapter slot. There are no
restrictions.
For example, the addresses of the interface ports on the 2CT1 port adapter in chassis slot 1 are 1/0
and 1/1 (chassis slot 1 and interface ports 0 and 1). If the 2CT1 port adapter was in port adapter
slot 4, these same interface ports would be numbered 4/0 and 4/1.
ISDN Service Provider Switch Types (continued)
Switch Type
AT&T basic rate switches
NT DMS-100 basic rate switches
National (North American) ISDN-1 switches
AT&T 4ESS switch type for the U.S. (ISDN PRI only)
AT&T 5ESS switch type for the U.S. (ISDN PRI only)
NT DMS-100 switch type for the U.S. (ISDN PRI only)
New Zealand NET3 switches
Channelized T1 Port Adapter Installation and Configuration
Configuring 2CT1 Interfaces
39