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New Member

Ways to power a 1262 Access Point?

We have WS-C3750-24PS-S switches and want to connect AIR-LAP1262N-E-K9 access points. The switches are 10/100 fast ethernet and pre-standard PoE (inline power), thus not gigabit and not 802.3af. The 1262 AP's are gigabit and get their power through 802.3af, AIR-PWRINJ4 or local power supply. Now my question: Is it possible for us to get the access points running on these switches, so with fast ethernet and inline power or AIR-PWRINJ3?

7 REPLIES
Hall of Fame Super Gold

Re: Ways to power a 1262 Access Point?

The 1260 will be able to operate at 15.4 w of power.

You have the following choices:

1.  Standard PoE of up to 15.4w;

2.  PWR-INJ4; and

3.  Power brick of the INJ3 plugged directly to the unit.  DO NOT USE INJ3 unit.

Hope this helps.

New Member

Re: Ways to power a 1262 Access Point?

Hi Leolaohoo,

Thanks for your reply. I know that those three are the right way to power a 1262AP.
But is their an alternative, like pre-standard inline power? Because this is also 15,4 W.

Hall of Fame Super Gold

Re: Ways to power a 1262 Access Point?

Sure.  You can connect the 1260 to your WS-C3750-24PS and enable power on the port.

New Member

Re: Ways to power a 1262 Access Point?

I have tried that and get to see this:

raa-1078gz-137-SW-01#sh run int fast 1/0/19
Building configuration...

Current configuration : 272 bytes
!
interface FastEthernet1/0/19
description Access Point test
switchport access vlan 51
switchport mode access
no snmp trap link-status
spanning-tree portfast
spanning-tree bpdufilter enable
spanning-tree guard root
service-policy input Classification_Marking
end

raa-1078gz-137-SW-01#
raa-1078gz-137-SW-01#show power inline fast 1/0/19
Interface Admin  Oper       Power   Device              Class Max
                            (Watts)                           
--------- ------ ---------- ------- ------------------- ----- ----
Fa1/0/19  auto   off        0.0     n/a                 n/a   15.4

Interface  AdminPowerMax   AdminConsumption   
             (Watts)           (Watts)          
---------- --------------- --------------------

Fa1/0/19              15.4                 15.4
raa-1078gz-137-SW-01#
raa-1078gz-137-SW-01#show cdp nei fast 1/0/19 detail
-------------------------
Device ID: AP1cdf.0f66.82bd
Entry address(es):
  IP address: 10.37.152.128
Platform: cisco AIR-LAP1262N-E-K9   ,  Capabilities: Trans-Bridge
Interface: FastEthernet1/0/19,  Port ID (outgoing port): GigabitEthernet0
Holdtime : 159 sec

Version :
Cisco IOS Software, C1260 Software (AP3G1-RCVK9W8-M), Version 12.4(23c)JA, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Tue 01-Jun-10 12:55 by prod_rel_team

advertisement version: 2
Duplex: full
Power drawn: 14.500 Watts
Power request id: 55989, Power management id: 1
Power request levels are:14500 0 0 0 0
Management address(es):

raa-1078gz-137-SW-01#

And the access point won't join the 5508 controller.

Hall of Fame Super Gold

Re: Ways to power a 1262 Access Point?

Can you console into the AP and find out what it's doing?  You are OK on your end.  You may have enough power, the AP can support up to 15.4w.  Is CDP enable on the switch?  "spanning-tree bpdufilter enable" may not be required.

New Member

Re: Ways to power a 1262 Access Point?

Yes, inline power is also 15,4 W, but it seems not to work. Tomorrow my colleague will take a look at the console.

I did find something else,access points won't join a controller, when load-balancing over an ether-channel is not src-dst-ip. We have configured LAG, but attached only one link to the contoller.

When you use LAG, the controller relies on the switch for the load balancing decisions on traffic that comes from the network. It expects that traffic that belongs to an AP (LWAPP or network to wireless user) always enters on the same port. Use only ip-src or ip-src ip-dst load balancing options in the switch EtherChannel configuration. Some switch models might use unsupported load balancing mechanisms by default, so it is important to verify.

raa-1078gz-137-SW-01#show etherchannel load-balance

EtherChannel Load-Balancing Configuration:

        src-mac

EtherChannel Load-Balancing Addresses Used Per-Protocol:

Non-IP: Source MAC address

  IPv4: Source MAC address

  IPv6: Source MAC address

raa-1078gz-137-SW-01#

raa-1078gz-137-SW-01(config)#port-channel load-balance ?

  dst-ip       Dst IP Addr

  dst-mac      Dst Mac Addr

  src-dst-ip   Src XOR Dst IP Addr

  src-dst-mac  Src XOR Dst Mac Addr

  src-ip       Src IP Addr

  src-mac      Src Mac Addr

raa-1078gz-137-SW-01(config)#

New Member

Re: Ways to power a 1262 Access Point?

It looks like the AP1262 access points can be conencted to a 10/100Mb fastethernet port and powered by a pre-standard inline power switch. It doesn't have to be 802.3af PoE. We enabled all radios A/B/G/N and everythink works.

Why the new AP1262 didn't join the 5500 controller, was due to the software release, which was 6.0.199.0. The new 1262 AP is only supported in 7 release, we installed 7.0.98.0.

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