Cisco PA-E3 Specifications download pdf (Page 49)

Configuring the PA-E3 Interfaces 8-3

Cisco 7200 Series and Cisco uBR7200 Series Ports

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 ﬁrst number

in the address changes to reﬂect the new chassis 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 port adapter slots and interface ports of a Cisco 7206. The individual interface

port numbers always begin with 0. The number of additional ports depends on the number of ports

on a port adapter.

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.

For example, the serial port on a one-port PA-E3 in port adapter slot 3 has the address 3/0.

(See Figure 8-1.) If the PA-E3 is in port adapter slot 1, this same interface port is numbered 1/0. The

serial ports on a two-port PA-2E3 in port adapter slot 3 have the addresses 3/0 and 3/1.

Note The PA-E3 is considered a high-bandwidth port adapter; you must observe speciﬁc

conﬁguration guidelines. Refer to the publication Cisco 7200 Series Port Adapter Hardware

Conﬁguration Guidelines, which shipped with your Cisco 7200 series chassis and is also available

on the Cisco Connection Documentation, Enterprise Series CD-ROM.

Figure 8-1 Cisco 7206 Serial Port Number Example

Figure 8-2 shows the interface ports of a PA-E3 in slot 2 of a Cisco uBR7200 series router. The port

adapter slots are numbered slot 1 and slot 2 for the Cisco uBR7246 and slot 1 for the Cisco uBR7223

(slot 0 is always reserved for the Fast Ethernet port on the I/O controller if present). 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 serial port on a one-port PA-E3 in port adapter slot 1 has the address 1/0.

(See Figure 8-2.) If the PA-E3 is in port adapter slot 2, this same interface port is numbered 2/0. The

serial ports on a two-port PA-2E3 in port adapter slot 2 have the addresses 2/0 and 2/1.

H10609

FAST SERIAL

ENABLED

MII

LINK

RJ45

FAST ETHERNET

TOKEN RING

ENABLED

RCLK

XMTR

RCVR

FERF

OOF

AIS

E3 SERIAL

ETHERNET-10BFL

FAST ETHERNET INPUT/OUTPUT CONTROLLER

ENABLED

PCMCIA

EJECT

SLOT 0

SLOT 1

FE MII

PA-E3 port adapter

(port number 3/0)

MII

RJ-45

LINK

1O PWR

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Cisco PA-E3 Specifications Page 49

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