wireless phones with ios based APs

[john smith]

dear all,

i have a wlse setup in a small orgnization and have c1130 aps connected to lan netwrok and with two broadcast ssids

and i have cisco ip telephoy setup too,

now i want to connect some of cisco wireless phone to connect through the wireless,

as i said that i have two ssids and both are working very fine

so my question is that on lan switch side i have configuration:

interface GigabitEthernet1/0/9
switchport trunk native vlan 54
switchport trunk allowed vlan 51,54,58,59
switchport mode trunk
spanning-tree portfast

if i use here for voice

switchport voice vlan ******

than should this work fine or i need to configure some thing on APs too???

thanks in advance and your help will be highly appreciated

[dmantill]

a lot of things must the taken into consideration..

Check this link this is what you need.

http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7921g/6_0/english/deployment/guide/7921dply.pdf

[john smith]

Thank you so much MR Dmantill for your reply

i really appreciated your doc. its so nice and have a lots of info. this is also the one that i was looking for

but my question is the still that i have two ssids with simple encryption wep mandatory so i need to use wireless phones with them too

actually wireless phones are not yet deliver to but i am sure in couple of days i have that

so i just need to know like verbly that i configured on my switches the configuration that i told you allready. is there any more setup i need to do on switch side or on AP side??

so than i will try to connect any ssid through my wireless phone i can connect and can use that device normally???

your reply will be highly appreciated.

[Leo Laohoo]

interface GigabitEthernet1/0/9
 switchport trunk native vlan 54
 switchport trunk allowed vlan 51,54,58,59
 switchport mode trunk
 spanning-tree portfast

Is your switch a 2960S or a 3750?  If this is a 3750 then where's the line "switchport trunk encap dot1q"?

For the switchport facing the AP, you don't need to configure "switchport voice vlan" because the port needs to be configured as a dot1q trunk.

What encryption do you want?  The 7921/7925 will support WPA/WPA2 depending on the firmware the phone is running.

Can you use the 7921/7925 over wireless?  Yes you can.  Read the deployment guide.  It's very useful.

You might also consider disable the 802.11b data rates.

[john smith]

thaks for your replr Mr leolaohoo

actualy i am using 2960s switch so there is not configuration dot1q on trunk

but as you can see i have already allow vlan for voice like vlan 51

so should i need to do any thing more on my switch??

i have ip phone 7921 and in my setup i am using using simple preshare wep 128 bits key just for testing i ll chage it later on

so if i ll go through any ssid should my phone will communicat with each other with this setup or i need to configure some thing on my APs or switch.

your reply will be highly appreciated.

[Leo Laohoo]

Configure platinum QoS. Enable media session snooping. Disable load balancing and band select.

Sent from Cisco Technical Support iPhone App

[Leo Laohoo]

Don't use WEP

Sent from Cisco Technical Support iPhone App

[john smith]

thanx for reply Mr leolaohoo

actually i have already a setup of two ssids with wep ecryption for others wireless users now i want to use wireless ip phones with the same setup

should i use them? to configure the QOS on both side

allright what about this one

on access points*************

class-map match-all RTP
match ip dscp ef
class-map match-all SCCP
match ip dscp cs3
!
policy-map Voice
class RTP
set cos 6
class SCCP
set cos 4
!
interface dot11radioX
service-policy input Voice
service-policy output Voice

and on cisco switches**************

mls qos
!
interface X
mls qos trust dscp

does this work properly as i ll configure them??

your reply will be very appreciated.

[Leo Laohoo]

Oh nuts. You don't have a WLC???

In that case no need for QoS.

Sent from Cisco Technical Support iPhone App

[john smith]

leolaohoo   i am surprized to know that

ok than what i have to do for this setup have you any solution??

[dmantill]

OK

THIS IS WHATi USED TO PROVIDE TO MY CLIENTS FOR 7921 DEPLOYMENTS.. .

iS A SUMMARY OF THE DEPLOYMENT GUIDE IN PRACTICE FOR ios THIS SUMMARY WAS WRITTEN TOO BY DDUNLAP.

Code version must be 12.3.8.JEA or higher

If the phone is a 'W' phone (instead of 'A'), 'World Mode' must
be enabled in the AP (802.1d).

B/G data rate should have 11M mandatory (basic) & 18-54 supported (optional)
Lower datarates should be disabled.

If using leap or eap-fast, cckm & tkip should also be used.

Make sure that wmm is enabled:
int dot110
dot11 qos mode wmm
int dot111
dot11 qos mode wmm
(if these do not appear in the configuration, it may be because they are the defaults in the version)

Set the dtim period to '2':
int dot110
beacon dtim-period 2
int dot111
beacon dtim-period 2
(if these do not appear in the configuration, it may be because they are the defaults in the version)

Set the beacon period to '100':
int dot110
beacon period 100
int dot111
beacon period 100
(if these do not appear in the configuration, it may be because they are the defaults in the version)

With vlans, the phones should be on the non-native & dedicated vlan.
Native vlan other than '1' is recommended.

Ensure that 'admit-traffic" is on the voice ssid.                               dot110 ssid whatever
admit-traffic

Set up QOS with dscp to cos mapping:

class-map match-all RTP
match ip dscp ef
class-map match-all SCCP
match ip dscp cs3

policy-map Voice
class RTP
  set cos 6
class SCCP
  set cos 3

interface dot11#
service-policy input Voice
service-policy output Voice

Configure switch ports:
mls qos
interface #
mls qos trust dscp
interface #
mls qos trust device cisco-phone

The AP should not have power set to the maximum & should have 'power client
local' under the interface.

'short preamble' should be set unless there are legacy clients requiring long.

On B/G, channels must be 1, 6, or 11.

The 7921 should always have a signal of -67 or higher & Packet Error Rate no higher than 1%.

Minimum SNR should be 25dB = -92dBm noise level with -67 dBm signal.

There should be 19dBM of separation between same-channel cells.

QOS:
Device Information > QoS

> Ensuer "admit-traffic" is on the voice ssid.                                   
> The 7921 will give precedence to TSPEC over QBSS.                              
>  Can do "show dot11 cac interface dot11radio X" to show current CAC stats.     
Below is a sample config to enable TSPEC.                                    

dot11 ssid voice                                                              
admit-traffic                                                                 
!                                                                              
interface dot11radio X                                                         
dot11 qos class voice local                                                   
   admission-control                                                          
   admit-traffic narrowband max-channel 75 roam-channel 6                     
  !                                                                             
dot11 qos class voice cell                                                    
   admission-control         

7921 does not support FSR (fast-secure-roaming) with aes (yet).  Use tkip.

If this is 7921 to IOS & the phone is a 'W' model, world mode must be enabled in IOS.

Data-rates below 11 should be disabled, i.e. 1, 2, & 5.5M.
This will show up in the configuration as:
Speed basic-11.0 18.0 24.0 36.0 48.0 54.0
The lowest rate should be enabled as the basic rate, for example, if
5.5 & 11M are configured:
speed basic-5.5 basic-11.0