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In-Depth Information
Figure15-2 show controllers cbus Command Output
Harold> show controllers cbus
Switch Processor 5, hardware version 11.1, microcode version 10.7
Microcode loaded from system
512 Kbytes of main memory, 128 Kbytes cache memory
4 256 byte buffers, 4 1024 byte buffers, 312 1520 byte buffers
1024 byte system buffer
Restarts: 0 line down, 0 hung output, 0 controller error
FSIP 0, hardware version 1.0, microcode version 175.0
Microcode loaded from system
Interface 0 - Serial 0/0, electrical interface is Universal (cable unattached)
22 buffer RX queue threshold, 23 buffer TX queue limit, buffer size 1520
TX queue length is 0
ift 0001, rql 12, tq 0000 0000, tql 23
Transmitter delay is 0 microseconds
Interface 1 - Serial 0/1, electrical interface is Universal (cable unattached)
22 buffer RX queue threshold, 23 buffer TX queue limit, buffer size 1520
TX queue length is 0
ift 0001, rql 12, tq 0000 0000, tql 23
Transmitter delay is 0 microseconds
Interface 2 - Serial 0/2, electrical interface is Universal (cable unattached)
22 buffer RX queue threshold, 23 buffer TX queue limit, buffer size 1520
TX queue length is 0
ift 0001, rql 12, tq 0000 0000, tql 23
Transmitter delay is 0 microseconds
Interface 3 - Serial 0/3, electrical interface is Universal (cable unattached)
22 buffer RX queue threshold, 23 buffer TX queue limit, buffer size 1520
TX queue length is 0
ift 0001, rql 12, tq 0000 0000, tql 23
Transmitter delay is 0 microseconds
Microcode
version
Interface and
attached cable
information
On access products such as the Cisco 2000, Cisco 2500, Cisco 3000, and Cisco 4000 series access
servers and routers, use the show controllers exec command. Figure 15-3 shows the show controllers
command output from the Basic Rate Interface (BRI) and serial interfaces on a Cisco 2503 access server.
(Note that some output is not shown.)
The show controllers output indicates the state of the interface channels and whether a cable is attached
to the interface. In Figure 15-3, serial interface 0 has an RS-232 DTE cable attached. Serial interface 1
has no cable attached.
Figure 15-4 shows the output of the show controllers mci command. This command is used on AGS,
CGS, and MGS routers only. If the electrical interface is displayed as UNKNOWN (instead of V.35,
EIA/TIA-449, or some other electrical interface type), an improperly connected cable is the likely
problem. A bad applique or a problem with the internal wiring of the card is also possible. If the
electrical interface is unknown, the corresponding display for the show interfaces serial exec command
will show that the interface and line protocol are down.
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