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VIP-FE-TX Installation and Configuration 39

FE-TX Port Adapter Functions

Interface ports on the VIP maintain the same address regardless of whether other interface

processors are installed or removed. However, when you move a VIP to a different slot, the ﬁrst

number in the address changes to reﬂect the new slot number.

Figure 23 shows some of the slot port adapter and interface ports of a sample Cisco 7505 system.

For example, on a VIP-FE-TX in slot 3, the address of the Fast Ethernet port adapter is 3/0/0 (chassis

slot 3, port adapter slot 0, and interface port 0). The individual port adapter number is always 0. The

individual interface port numbers always begin with 0. For example, the FE-TX port adapter in the

ﬁrst port adapter slot in chassis slot 3 would 3/0/0. The number of additional ports depends on the

number of ports on a port adapter.

You can identify interface ports by physically checking the slot/port adapter/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.

To display information about a speciﬁc interface, use the show interfaces command with the

interface type and port address in the format show interfaces [type slot/port adapter/port].

Following is an example of how the show interfaces command displays status information

(including the physical slot and port address) for the interface you specify. In this example, most of

the status information for each interface is omitted, and a Fast Ethernet interface in slot 3 is used.

Router# sh int fa 3/0/0

FastEthernet3/0/0 is administratively down, line protocol is down

Hardware is cyBus FastEthernet Interface, address is 0000.0ca5.2380 (bia 0000)

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 1/255

Encapsulation ARPA, loopback not set, keepalive set (10 sec), hdx, 100BaseTX

(display text omitted)

The Fast Ethernet interface port adapter is numbered as port adapter 0. The MII and RJ-45 ports on

a port adapter each have the same port number because only one of them can be used at one time.

The single Fast Ethernet port on the FE-TX port adapter is interface 0.

With the show interfaces type slot/port adapter/port command, use arguments such as the interface

type (fastethernet, and so forth) and the port number (slot/port) to display information about a

speciﬁc interface only. The following example of the show interfaces fastethernet command shows

information speciﬁc to the Fast Ethernet interface on the ﬁrst FE-TX port adapter in slot 3:

Router# show interfaces fastethernet 3/0/0

FastEthernet3/0/0 is administratively down, line protocol is down

Hardware is cyBus FastEthernet Interface, address is 0000.0ca5.2380 (bia 0000)

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 1/255

Encapsulation ARPA, loopback not set, keepalive set (10 sec), hdx, 100BaseTX

ARP type: ARPA, ARP Timeout 4:00:00

Last input 3:08:43, output 3:08:42, output hang never

Last clearing of "show interface" counters 2:58:36

Output queue 0/40, 0 drops; input queue 0/75, 0 drops

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

0 watchdog, 0 multicast

0 input packets with dribble condition detected

0 packets output, 0 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets, 0 restarts

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

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