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Identifying Port Adapter Slot and T3 Interface Port Numbers
PA-T3 Serial Port Adapter Installation and Configuration
8-4
Figure 8-2 PA-T3 Interface Port Address Example—Cisco uBR7246
You can identify interface ports by physically checking the port adapter slot number/interface port
location on the back of the router or by using software commands to display information about a
specific interface or all interfaces in the router.
VIP2 Ports
This section describes how to identify chassis slot, port adapter, and T3 interface port numbers on
the VIP2.
Note Although the processor slots in the 7-slot Cisco 7000 and Cisco 7507 and 13-slot Cisco 7513
are vertically oriented and those in the 5-slot 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 Figure 8-3.) Each address is composed of a three-part
number in the format chassis slot/port adapter/interface port, as follows:
• The first number identifies the chassis slot in which the VIP2 is installed (as shown in the sample
system in Figure 8-3).
• The second number identifies the physical port adapter slot on the VIP2, and is either 0 or 1.
• The third number identifies the interface port on each PA-T3 serial port adapter, which is always
numbered as interface 0 for the one-port PA-T3 serial port adapter and 0 or 1 for the two-port
PA-T3 serial port adapter.
Interface ports on the VIP2 maintain the same address regardless of whether other interface
processors are installed or removed. However, when you move a VIP2 to a different slot, the first
number in the address changes to reflect the new chassis slot number.
Figure 8-3 shows the port adapter slots and interface ports of a sample Cisco 7505 system. On the
VIP2, the first port adapter slot number is always 0. The second port adapter slot number is always 1.
The individual interface port numbers always begin with 0. The number of additional ports depends
on the number of ports on a port adapter.
15262
PA-T3
port adapter
(port number 1/0)
DS3 SERIAL
RCLK
FERF
RL
AIS
OOF
LL
RCLK
ENABLED
FERF
RL
AIS
OOF
LL
XMTR
RCVR