System information

Troubleshooting Token Ring
Book Title
6-86
Sample Display
The following is sample output from the show interfaces tokenring command:
Router# show interfaces tokenring
TokenRing 0 is up, line protocol is up
Hardware is 16/4 Token Ring, address is 5500.2000.dc27 (bia 0000.3000.072b)
Internet address is 150.136.230.203, subnet mask is 255.255.255.0
MTU 8136 bytes, BW 16000 Kbit, DLY 630 usec, rely 255/255, load 1/255
Encapsulation SNAP, loopback not set, keepalive set (10 sec)
ARP type: SNAP, ARP Timeout 4:00:00
Ring speed: 16 Mbps
Single ring node, Source Route Bridge capable
Group Address: 0x00000000, Functional Address: 0x60840000
Last input 0:00:01, output 0:00:01, output hang never
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
Five minute input rate 0 bits/sec, 0 packets/sec
Five minute output rate 0 bits/sec, 0 packets/sec
16339 packets input, 1496515 bytes, 0 no buffer
Received 9895 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
32648 packets output, 9738303 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets, 0 restarts
5 transitions
Table 6-2 describes the show interfaces token ring display field.
Table 6-2 show interfaces tokenring Field Descriptions
Field Description
Token Ring is { up | down } Interface is either currently active and inserted into ring (up) or inactive and not
inserted (down).
On the Cisco 7500 series, gives the interface processor type, slot number, and port
number.
Token Ring is Reset Hardware error has occurred.
Token Ring is Initializing Hardware is up, in the process of inserting the ring.
Token Ring is
Administratively Down
Hardware has been taken down by an administrator.
line protocol
is {up | down |
administratively down}
Indicates whether the software processes that handle the line protocol believe the
interface is usable (that is, whether keepalives are successful).
Hardware Hardware type. Hardware is Token Ring indicates that the board is a CSC-R
board. Hardware is 16/4 Token Ring indicates that the board is a CSC-R16
board. Also shows the address of the interface.
Internet address Lists the Internet address followed by subnet mask.
MTU Maximum transmission unit of the interface.
BW Bandwidth of the interface in kilobits per second.
DLY Delay of the interface in microseconds.
rely Reliability of the interface as a fraction of 255 (255/255 is 100 percent reliability),
calculated as an exponential average over five minutes.
load Load on the interface as a fraction of 255 (255/255 is completely saturated),
calculated as an exponential average over five minutes.
Encapsulation Encapsulation method assigned to interface.
loopback Indicates whether loopback is set.