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PnP DHCP Option 43 with Fiber Ports

Njordic1429
Level 1
Level 1

My testing for PnP with APIC-EM works great through a Ethernet uplink, but when using an SFP Multimode Fiber Uplink I'm not seeing anything link up.  Is this a feature not quite set up yet with the PnP Agent?

Here is my DHCP Option 43 configuration on the router it's uplinking to.

ip dhcp pool APICPnP

network 10.2.222.0 255.255.255.248

default-router 10.2.222.1

option 43 ascii "5A1N;B2;K4;I10.100.4.38;J80"

The switch has been factory defaulted:

==============Website screen output========================

configure terminal

crypto key zeroize

  no crypto pki certificate pool

no pnp profile pnp-zero-touch

end

delete nvram:*.cer

delete stby-nvram:*.cer (if the device has stack members)

write erase

reload

====================End of output======================

Any information would be much appreciated.

Thanks,

10 Replies 10

aradford
Cisco Employee
Cisco Employee

Hi,

what model switch are you using and which version of code?

Adam

Version:  IOS 15.2

Model: Switch 3750-X

sorry to keep drilling down on this, but is it 15.2(2)E3 or later?

No problem at all, yes it is.

Khurram Noor
Level 1
Level 1

Hi, I am having problem as well with pnp on 3750x with 15.2.(4)E2, pnp doesnt start working...i have already posted a question for it.

Regards,

-KN

Hi Khurram,

Did you had chance to refer page 35 (Troubleshooting) of this url - http://www.cisco.com/c/dam/assets/global/DK/seminarer/pdfs/EN_SDN_APIC_EM_PNP_APP.pdf and confirm  the PnP Server on the APIC-EM is reachable and can be authenticated using the credentials provided in settings. If all is fine can you check the logs.

Thanks and Regards,

Geevarghese

Yes, the server is reachable.  I've performed this procedure twice through Ethernet on the same switch, but when uplinking with Fiber ports with SFP's it won't work.

Hi,

can you give me the exact fibre interface you are using.  I want to get engineering to test and reproduce this.

A "show interface" of the interface in question should do.

Adam

Currently we do not have it active at the moment.  If you need an active port connected to the PnP switch...let me know, I can get it back online when able.

This port is set up as a trunk only.

TenGigabitEthernet5/8 is down, line protocol is down (inactive)

  Hardware is Ten Gigabit Ethernet Port, address is f44e.052d.51c7 (bia f44e.052d.51c7)

  MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, Auto-speed, link type is auto, media type is 1000BaseSX

  input flow-control is off, output flow-control is off

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input never, output never, output hang never

  Last clearing of "show interface" counters never

  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: Class-based queueing

  Output queue: 0/40 (size/max)

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 0 bits/sec, 0 packets/sec

     0 packets input, 0 bytes, 0 no buffer

     Received 0 broadcasts (0 multicasts)

     0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

     0 input packets with dribble condition detected

     0 packets output, 0 bytes, 0 underruns

     0 output errors, 0 collisions, 3 interface resets

     0 unknown protocol drops

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier

     0 output buffer failures, 0 output buffers swapped out

Thanks .... it started to work after a couple of switch reloads. Also i put the pnp profile manually. but later on i tried DHCP way and it worked.

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