Mike's PBX Cookbook

Check Phones at TR

The following checks can be performed on a closet switch...

Check phones are powered up:

switch-s1#show power inline

Module   Available     Used     Remaining
          (Watts)     (Watts)    (Watts)
------   ---------   --------   ---------
1          1550.0       21.7      1528.3
Interface Admin  Oper       Power   Device              Class Max
                            (Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi1/0/1   auto   on         3.7     IP Phone 7841       1     30.0
Gi1/0/2   auto   on         3.7     IP Phone 7841       1     30.0
Gi1/0/3   auto   on         14.2    IP Phone 8861       4     30.0
Gi1/0/4   auto   off        0.0     n/a                 n/a   30.0
Gi1/0/5   auto   off        0.0     n/a                 n/a   30.0
Gi1/0/6   auto   off        0.0     n/a                 n/a   30.0
Gi1/0/7   auto   off        0.0     n/a                 n/a   30.0
Gi1/0/8   auto   off        0.0     n/a                 n/a   30.0
Gi1/0/9   auto   off        0.0     n/a                 n/a   30.0
Gi1/0/10  auto   off        0.0     n/a                 n/a   30.0
Gi1/0/11  auto   off        0.0     n/a                 n/a   30.0

Check phones connection status:

switch-s1#show int status

Port      Name               Status       Vlan       Duplex  Speed Type
Gi1/0/1   phone_port         connected    100        a-full a-1000 10/100/1000BaseTX
Gi1/0/2   phone_port         connected    100        a-full a-1000 10/100/1000BaseTX
Gi1/0/3   phone_port         connected    100        a-full a-1000 10/100/1000BaseTX
Gi1/0/4   phone_port         notconnect   100          auto   auto 10/100/1000BaseTX
Gi1/0/5   phone_port         notconnect   100          auto   auto 10/100/1000BaseTX
Gi1/0/6   phone_port         notconnect   100          auto   auto 10/100/1000BaseTX
Gi1/0/7   phone_port         notconnect   100          auto   auto 10/100/1000BaseTX
Gi1/0/8   phone_port         notconnect   100          auto   auto 10/100/1000BaseTX
Gi1/0/9   phone_port         notconnect   100          auto   auto 10/100/1000BaseTX
Gi1/0/10  phone_port         notconnect   100          auto   auto 10/100/1000BaseTX
Gi1/0/11  phone_port         notconnect   100          auto   auto 10/100/1000BaseTX
 --More--

Status can be:

If interface is 'err disabled', refer to Port Security.

Check switch fans and power supplies are OK:

switch-s1#sh env all
Switch 1 FAN 1 is OK
Switch 1 FAN 2 is OK
Switch 1 FAN 3 is OK
FAN PS-1 is OK
FAN PS-2 is OK
Switch 1: SYSTEM TEMPERATURE is OK
SW  PID                 Serial#     Status           Sys Pwr  PoE Pwr  Watts
--  ------------------  ----------  ---------------  -------  -------  -----
1A  PWR-C2-1025WAC      DCB1841C0AK  OK              Good     Good     1025
1B  PWR-C2-1025WAC      DCB1841C0AJ  OK              Good     Good     1025

switch-s1#

Command to use to test diagnostics on a Cable connected to a Cisco switch port:

switch-s1#test cable tdr interface Gi1/0/1

Wait approxitmately 10 seconds...

switch-s1#show cable-diagnostics tdr interface Gi1/0/1

The results will be on the interface cable speed / pairs / length / Pair Status
A very useful tool when testing, and checking UP/DOWN Interface State.