Hello Folks,
I have 5 3750 switches which are stacked. The IP Phones are working perfect but as soon as I unplug the cable from an IP Phone and replug it back the Phone does not boot at all. It looks like there's not enough power in the swith to power up the phone. This issue happens at least once a week and everytime I reboot either the stack or the affected swith. the IOS is:
C3750E Software (C3750E-UNIVERSAL-M), Version 12.2(44)SE1, RELEASE SOFTWARE (fc1)
The show log is full of the following message but as per cisco documentation this message is just for information. Here's the message:
Apr 3 10:47:44: %PLATFORM_RPC-3-MSG_THROTTLED: RPC Msg Dropped by throttle mechanism: type 37, class 14, max_msg 32, total throttled 19144
I am also posting the output of some commands:
3750#sh switch
Switch/Stack Mac Address : 001e.4ac7.9100
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 001e.4ac7.9100 10 1 Ready
2 Member 001e.4ac6.e280 5 1 Ready
3 Member 001e.4ac6.dc00 1 1 Ready
4 Member 001e.7a50.ae80 1 1 Ready
5 Member 001e.4ac6.f200 1 1 Ready
3750#sh switch stack-ports
Switch # Port 1 Port 2
-------- ------ ------
1 Ok Ok
2 Ok Ok
3 Ok Ok
4 Ok Ok
5 Ok Ok
3750#sh power inline
Module Available Used Remaining
(Watts) (Watts) (Watts)
------ --------- -------- ---------
1 850.0 437.8 412.2
2 850.0 440.6 409.4
3 850.0 173.8 676.2
4 850.0 12.0 838.0
5 850.0 0.0 850.0
Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi1/0/1 auto on 12.9 IP Phone 7941 3 15.4
Gi1/0/2 auto on 12.9 IP Phone 7941 0 15.4
Gi1/0/3 auto off 0.0 n/a n/a 15.4
Gi1/0/4 auto off 0.0 n/a n/a 15.4
Gi1/0/5 auto off 15.4 n/a n/a 15.4
Gi1/0/6 auto on 12.9 IP Phone 7941 3 15.4
Gi1/0/7 auto off 0.0 n/a n/a 15.4
Gi1/0/8 auto off 0.0 n/a n/a 15.4
Gi1/0/9 auto on 12.9 IP Phone 7941 3 15.4
Gi1/0/10 auto on 12.9 IP Phone 7941 3 15.4
Gi1/0/11 auto off 0.0 n/a n/a 15.4
Gi1/0/12 auto on 12.9 IP Phone 7941 3 15.4
Gi1/0/13 auto on 12.9 IP Phone 7941 3 15.4
Gi1/0/14 auto on 14.9 IP Phone 7971 3 15.4
Gi1/0/15 auto on 12.9 IP Phone 7941 3 15.4
Gi1/0/16 auto on 12.9 IP Phone 7941 3 15.4
Gi1/0/45 auto on 12.2 AIR-LAP1131AG-A-K9 3 15.4
Gi1/0/46 auto on 12.2 AIR-LAP1131AG-A-K9 3 15.4
Gi1/0/47 auto on 12.2 AIR-LAP1131AG-A-K9 3 15.4
Gi1/0/48 auto on 12.2 AIR-LAP1131AG-A-K9 3 15.4
Thank you for your precious help,
