Chapter 3 Starting and Configuring the Router
Functional Overview
Chassis Slot and Logical Interface Numbering
In the Cisco 7201 router, the
The port adapter slot in the Cisco 7201 router is numbered slot 1. Port adapter slot 0 is always reserved for logical port 10/100/1000.
The Media Access Control (MAC) or hardware address is a standardized data link layer address that is required for certain network interface types. These addresses are not used by other devices in the network; they are specific and unique to each port. The Cisco 7201 router uses a specific method to assign and control the MAC addresses of its port adapters. For a description of the MAC address, see the “MAC Address” section on page
You can identify port adapter slots by using software commands. To display information about all port adapter slots, use the show interfaces command. To display information about a specific port adapter slot, use the show interfaces command with the port adapter type and slot number in the format show interfaces
The following example shows how the show interfaces command, used without arguments, displays status information (including the physical port adapter number) for the port adapter in a Cisco 7201 router.
In the following example, most of the status information for each interface is omitted.
Router# show interfaces
GigabitEthernet0/0 is up, line protocol is up
Hardware is MV64460 Internal MAC, address is 0019.56c5.2adb (bia 0019.56c5.2adb)
Internet address is 209.165.200.225
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 45/255
Encapsulation ARPA, loopback not set Keepalive set (10 sec)
output
Last input 00:07:03, output 00:00:07, output hang never Last clearing of "show interface" counters 00:00:04
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 180240000 bits/sec, 430965 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
2222975 packets input, 133378500 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
You can also use arguments such as the interface type (Ethernet, Token Ring, ATM, and so forth) and the port address
Cisco 7201 Installation and Configuration Guide
| ||
|
