NM-16ESW issue

[jennyjohn]

I have a site with a 2811 router which has a NM-16ESW module. The SVI does not seem to come up up even after connecting devices to the port, it always shows up down. Could not find any issue with the configuration. Am I missing something?

Router2811#sh ip int bri

Interface                  IP-Address      OK? Method Status                Protocol

....

Vlan397                    10.87.207.46    YES NVRAM  up                    down

Vlan497                    10.87.207.62    YES NVRAM  up                    down

The router configuration is as below

ip dhcp pool VOICE

   network 10.45.207.32 255.255.255.240

   option 150 ip 10.45.1.230

   default-router 10.45.207.46

   lease 30

!

ip dhcp pool DATA

   network 10.45.207.48 255.255.255.240

   default-router 10.45.207.62

   lease 30

!

interface FastEthernet0/0

description ----WAN Link-1----

ip address 10.45.200.74 255.255.255.252

duplex full

speed 100

!

interface FastEthernet0/1

description ----WAN Link-2----

ip address 10.45.200.78 255.255.255.252

duplex full

speed 100

!

interface FastEthernet1/0

switchport access vlan 497

switchport voice vlan 397

spanning-tree portfast

!

....

interface FastEthernet1/15

switchport access vlan 497

switchport voice vlan 397

spanning-tree portfast

!

!

interface Vlan397

description -------VOICE VLAN-----

ip address 10.45.207.46 255.255.255.240

!

interface Vlan497

description -------DATA VLAN------

ip address 10.45.207.62 255.255.255.240

Router2811#sh vlan-switch bri

VLAN Name                             Status    Ports

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

397  VOICE                            active    Fa1/0, Fa1/1, Fa1/2, Fa1/3, Fa1/4, Fa1/5, Fa1/6, Fa1/7, Fa1/8, Fa1/9, Fa1/10

                                                Fa1/11, Fa1/12, Fa1/13, Fa1/14, Fa1/15

497  DATA                             active    Fa1/0, Fa1/1, Fa1/2, Fa1/3, Fa1/4, Fa1/5, Fa1/6, Fa1/7, Fa1/8, Fa1/9, Fa1/10

                                                Fa1/11, Fa1/12, Fa1/13, Fa1/14, Fa1/15

The router has a PPWR-DCARD-16ESW, but still the IP Phones do not seem to be getting power.

Thanks in advance

[Latchum Naidu]

Hi,

You must have an active client connection on vlan 1 for the SVI to go to an  up/up condition .  Once there is a live client on the switch you will see vlan 1 up/up .

Please rate the helpfull posts.
Regards,
Naidu.

[jennyjohn]

Thanks Naidu for the reply.

I am not planning to use VLAN 1. The SVI for VLAN 1 is shutdown.

I want SVI's for VLAN397 and VLAN497 up up, which is not happening

[Latchum Naidu]

Hi,

The thumb rule is that you must have an active client connection on vlan 1 for the SVI to go to an  up/up condition.

Once there is a live client on the switch you will see vlan 1 up/up .

Please rate the helpfull posts.
Regards,
Naidu.

[hulbertj17613]

Hi,

What is the output of a "show interface status"?  Do you have any of your switchports that participate in vlan 397 or vlan 497 on the NM-16ESW in the UP/UP condition.

Thanks,
Jerry

[manju.cisco]

Hi Jennyjohn,

looks you do not have any physical port which is assigned to vlan 397 or 497 in up/up status. Incase if cables are not connected, then connect the cable and make it up/up and the vlan will come up.

If you have your physical port admin down, then bring it up.

If you have a trunk port allowing vlan 397 & 497 then the SVI will come up ..... dont worry.......just

bring any of the above.interfaces to UP/UP status and you will see it yourself ;-)

Regards,

Manjunath

[amikat]

Hi,

Please be aware that in addition to PPWR-DCARD-16ESW module you also need special power supply unit to supply inline power to your IP phones via the NM-16ESW module, ie. if the router was not originally ordered as Inline Power Bundle (Cisco-2811-AC-IP) than you need to swap the original P.S.U. for the one with P/N "PWR-2811-AC-IP=".

Best regards,

Antonin

[jennyjohn]

Thanks Antonin for the reply.

I managed to get the PWR-2811-AC-IP, and installed it in the router (as per the document)

http://www.cisco.com/en/US/docs/routers/access/2800/hardware/installation/guide/10_hw.html#wp1161133

even still I cannot power up the IP phones. cdp and voice vlan are enabled on the port.

Router2811#sh power inline

PowerSupply   SlotNum.   Maximum   Allocated       Status

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

INT-PS           0       160.000     0.000         PS GOOD

EXT-PS           1         0.000     0.000         Ext. PS not supported

Interface   Config   Device    Powered    PowerAllocated

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

Fa1/0       auto     Unknown  Off        0.000 Watts

Fa1/1       auto     Unknown  Off        0.000 Watts

Fa1/2       auto     Unknown  Off        0.000 Watts

Fa1/3       auto     Unknown  Off        0.000 Watts

Fa1/4       auto     Unknown  Off        0.000 Watts

Fa1/5       auto     Unknown  Off        0.000 Watts

Fa1/6       auto     Unknown  Off        0.000 Watts

Fa1/7       auto     Unknown  Off        0.000 Watts

Fa1/8       auto     Unknown  Off        0.000 Watts

Fa1/9       auto     Unknown  Off        0.000 Watts

Fa1/10      auto     Unknown  Off        0.000 Watts

Fa1/11      auto     Unknown  Off        0.000 Watts

Fa1/12      auto     Unknown  Off        0.000 Watts

Fa1/13      auto     Unknown  Off        0.000 Watts

Fa1/14      auto     Unknown  Off        0.000 Watts

Fa1/15      auto     Unknown  Off        0.000 Watts

on every port, power inline is set to auto. Am I missing something?

Thanks in advance

[amikat]

Hi,

Will you please check that you are using 12.3(8)T IP Base IOS release at minimum and then let us know the status of  -48V LED and EN LED of the module.

Thanks & Regards,

Antonin

[jennyjohn]

We are running C2800NM-ADVIPSERVICESK9-M, Version 12.4(24)T4

and both the -48V LED and EN LED are up.

[amikat]

Hi,

OK, that sounds good. I am sure you have checked cabling before, so what is the status of interface fa 1/x after connecting the phone (BTW whould you mind to tell us the phone type/model)?

Best regards,

Antonin

[amikat · Accepted solution]

Hi,

As I have not yet received any response to my last post about the IP phone type connected and I should leave for a while now, there is one other thing for you to check: as your PPWR-DCARD-16ESW supports only Cisco prestandard PoE detection method please make sure your phone model supports this as well.

Best regards,

Antonin

[jennyjohn]

The status of the interface fa 1/8 to which the phone is up down

Interface                  IP-Address      OK? Method Status                Protocol

FastEthernet1/8            unassigned      YES unset  up                    down

The phone model we are using is CP-7941G-GE. I checked the data sheet and it says that it does not support Cisco Prestandard PoE. I connected the CP-7941G and it worked fine. Now it is up up.

FastEthernet1/8            unassigned      YES unset  up                    up

Thanks Antonin

[amikat · Accepted solution]

Hi,

That is correct: CP-7941G-GE does not support Cisco prestandard PoE negotiation. You can try to assign PoE for this model by static way. As this is Class 3 device it should take no more than 12.9 W according to Cisco data sheets. So the command (under the fa 1/x inerface) should read:

"power inline static max 12900".

Just be aware that static is the priority assignment, ie. all static PoE is applied first from the PoE budget.

I also hope that with the interface up/up all your other issues disappeared.

Best regards,

Antonin

[jennyjohn]

Unfortunately the router does not support the command power inline static max 12900. I really hoped it would be there.

The only commands available are power inline auto and power inline never

Rouer2811(config-if)#power inline ?

  auto   Automatically detect and power inline devices

  never  Never apply inline power

Thanks