Cisco 4507 power inline : IEEE PD issues

donglei888999 · ‎02-19-2012

Hi Friends,

That's so stranger, Recently, we found this problem more than 3 times. when we disconnect the cisco ip phone from 4507 switch, and then connect again, it cannot power on any more, when I connect to 4507 switch, "show power inline" command displayed the port is " Ieee PD" cannot displayed the IP Phone 7945... but when I move the cable to 3750 switch, show power inline command, it dispalyed as IP Phone 7945.

We have the same issue in three 4507 switch, no matter what I change the new cable or new IP phone. doesn't work... I don't if the switch 4507 port have some problem or how to reset the power inline to default. or you may have the same problem before when you deployed the cisco IP phone to your network replace PBX phones.

Thanks. and appreciate for your help.

donglei888999 · ‎02-19-2012

Here are some 4507 info:

System image file is "bootflash:cat4500-ipbasek9-mz.122-53.SG1.bin"

cisco WS-C4507R-E (MPC8540) processor (revision 13) with 524288K bytes of memory.

Processor board ID

MPC8540 CPU at 800Mhz, Supervisor V-10GE

Last reset from PowerUp

5 Virtual Ethernet interfaces

248 Gigabit Ethernet interfaces

4 Ten Gigabit Ethernet interfaces

511K bytes of non-volatile configuration memory.

---+-----+--------------------

------------------+------------------+-----------
1    48 10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-RJ45V+
2    48 10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-RJ45V+
3     6 Sup V-10GE 10GE (X2), 1000BaseX (SFP) WS-X4516-10GE
4     6 Sup V-10GE 10GE (X2), 1000BaseX (SFP) WS-X4516-10GE
5    48 10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-RJ45V+
6    48 10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-RJ45V+
7    48 10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-RJ45V+

Watts used of Chassis Inline Power (-50V)

Inline Power Admin Inline Power Oper

Mod Model PS Device PS Device Efficiency

---- ------------------- ---------------- ---------------- ----------

1 WS-X4548-RJ45V+ 222 208 74 69 94

2 WS-X4548-RJ45V+ 166 156 63 59 94

3 WS-X4516-10GE - - - - -

4 WS-X4516-10GE - - - - -

5 WS-X4548-RJ45V+ 447 420 148 139 94

6 WS-X4548-RJ45V+ 396 372 130 122 94

7 WS-X4548-RJ45V+ 396 372 131 124 94

------------------------- ---------------- ---------------- ----------

Total 1627 1528 546 513

The issue at Module 5, all this Module 5 cannot provide the PoE now... G5/* cannot provide the POE.