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new issues with SF-302 Firmware 1.2.2.7

Hello:

its been a while, previously I got some great help here with setting up a bunch of SF302-8P switches for use with Avaya phones in this thread.

https://supportforums.cisco.com/message/3585473#3585473

One of the things we found with the SF302-8P switches and Avaya Phones with Plantronics headsets, is that the power brick that powers the unit and provides enough Juice for the POE produces an Electromagnetic Hum that the plantronic headset picks up like an antenna and channels right into the calls, the hum gets worse the closer you get to the power brick with the headset.

As per Plantronix, this was the best sheilded headset cable they sold, and In an effort to eliminate this hum which is very noticable to the clients calling in, we purchased external power supplies for the phones and several of the Cisco SF302-8 switches, upgraded them to the newest frimware and set them up the same way we had done the previous switches.

Unfortunately we can't get this box to pull a DHCP address for the Phone, although it appears to be pulling DHCP for PC's hooked up to it. We are seeing this behavior on this specific version of the firmware on both the SF302-08 and SF302-08P switches and I would love some help finding out why.

Vlan's

1 Default Data for East Side of the Building

100 Default Data for West Side of the Building

400 Avaya DHCP

500 Management VLAN

Here is the running config on the swith

config-file-header

ACCESS-302-39

v1.2.7.76 / R750_NIK_1_2_584_002

CLI v1.0

file SSD indicator excluded

@

vlan database

vlan 100,400,500

exit

voice vlan oui-table add 0001e3 Siemens_AG_phone________

voice vlan oui-table add 00036b Cisco_phone_____________

voice vlan oui-table add 00096e Avaya___________________

voice vlan oui-table add 000fe2 H3C_Aolynk______________

voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone

voice vlan oui-table add 00d01e Pingtel_phone___________

voice vlan oui-table add 00e075 Polycom/Veritel_phone___

voice vlan oui-table add 00e0bb 3Com_phone______________

hostname ACCESS-302-39

!

interface vlan 100

name "West Data"

!

interface vlan 400

name "Avaya DHCP"

!

interface vlan 500

name Management

ip address 192.168.100.39 255.255.255.0

no ip address dhcp

!

interface fastethernet1

switchport trunk allowed vlan add 400

!

interface fastethernet2

switchport trunk allowed vlan add 400

!

interface fastethernet3

switchport trunk allowed vlan add 400

!

interface fastethernet4

switchport trunk allowed vlan add 400

!

interface fastethernet5

switchport trunk allowed vlan add 400

!

interface fastethernet6

switchport trunk allowed vlan add 400

!

interface fastethernet7

switchport trunk allowed vlan add 400

!

interface fastethernet8

switchport trunk allowed vlan add 400

!

interface gigabitethernet1

spanning-tree link-type point-to-point

switchport trunk allowed vlan add 100,400,500

macro description switch

!next command is internal.

macro auto smartport dynamic_type switch

!

interface gigabitethernet2

switchport mode access

switchport access vlan 500

!

ip default-gateway 192.168.100.1

2 Replies 2

hmm.,. odd, this may be a phone issue, We plugged in several after the first and they would not pull DHCP addresses, and then tried a known good phone, and the port came up, after the port came up we tried all of the failed phones that and with the exception of the very first phone all came up correctly.

Hi Joshua

Could be interesting to try disabling CDP on the switch and seeing if you can use LLDP-MED from avaya to inform the switch what is the voice VLAN.

here's a reference by Tom Watts on how to setup LLDP-MED

https://supportforums.cisco.com/docs/DOC-27005

Tom also wrote another post on how to setup the telephony OUI method for the switch to setup a voice vlan  when a particular MAC OUI is attcahed to a switch port.

https://supportforums.cisco.com/docs/DOC-27006

regards Dave