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Configuring PA-FE Port Adapter Interfaces 8-3
Note For the Cisco 7206VXR and Cisco 7206 router shelves, physical port addresses are
composed of a three-part number in theformat shelf number/port adapter slot number/interface port
number, where the shelf number is a number assigned to the router shelf during the initial
configuration of the Cisco AS5800 Universal Access Server. A Cisco AS5800 Universal Access
Server can consist of several shelves; therefore, each shelf is assigned a shelf number.
The Cisco 7206VXR and the Cisco 7206 can be used as router shelves in a Cisco AS5800 Universal
Access Server. For information about the Cisco 7206VXR and the Cisco 7206 as router shelves, see
the Cisco 7200 Series Port Adapter Hardware Configuration Guidelines.
You can identify interface ports by physically checking the slot/interface port location on the front
of the router or by using show commands to display information about a specific interface or all
interfaces in the router.
Interface ports maintain the same address regardless of whether other port adapters are installed or
removed from the slot. However, when you move a port adapter to a different slot, the port adapter
slot number in the address changes to reflect the new slot number.
In Cisco 7200 series routers, port adapter slots are numbered from the lower left to the upper right,
beginning with port adapter slot 1 and continuing through port adapter 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 adapter slot 0 is reserved for the optional Fast Ethernet port on the I/O controller—if present.
Figure 8-1 shows the interface port of a PA-FE-TX installed in slot 4 of a Cisco 7206.
Figure 8-1 Cisco 7206 Fast Ethernet Interface Port Number Example
Note The I/O controller is available with or without a Fast Ethernet port. You can install both I/O
controller types in all Cisco 7200 series routers; however, when you install an I/O controller with a
Fast Ethernet port in a Cisco 7202, the system software automatically disables the port.
H6794
ETHERNET 10BT
ENABLED
0
2
1
3
LINK
0
1
2
3
FAST SERIAL
EN
TD
TC
RD
RC
LB
CD
TD
TC
RD
RC
LB
CD
TD
TC
RD
RC
LB
CD
TD
TC
RD
RC
LB
CD
ENABLED
MII
LINK
RJ45
FAST ETHERNET
0
TOKEN RING
0
1
2
3
0
2
4
1
3
5
6
ETHERNET-10BFL
EN
RX
0
1
2
3
4
TX
RX
TX
RX
TX
RX
TX
RX
TX
FAST ETHERNET INPUT/OUTPUT CONTROLLER
ENABLED
PCMCIA
EJECT
SLOT 0
SLOT 1
FE MII
PA-FE-TX port adapter
(port number 4/0)
Note: The MII and RJ-45 interface ports on
the port adapter are both numbered as
interface port 0. Only one interface can be
used on each port adapter at a time.
MII
EN
RJ-45
EN
RJ-45
RJ-45
LINK
1O PWR
OK