Accepted Solutions
I have applied QoS as silver in my WLAN & planning to configure AVC to mark DSCP value for Skype. If I configure the AVC & map 802.1p values, will the WLC send the frames out with correct CoS value.
You have to apply "Platinum" QoS profile to your SSID and then make sure skype application traffic marked up using AVC. Below is the summary of upstream & downstream AVC treatment.
Upstream
1.
Packet comes with or without inner DSCP from wireless side (wireless client).
2. AP will add DSCP in the CAPWAP header that is configured on WLAN (QoS based configuration).
3. WLC will remove CAPWAP header.
4. AVC module on the controller will overwrite the DSCP to the configured marked value in the AVC profile and send it out.
1. Packet comes from switch with or without inner DSCP wired side value.
2. AVC module will overwrite the inner DSCP value.
3. Controller will compare WLAN QoS configuration (as per 802.1p value that is actually 802.11e) with inner DSCP value that NBAR had overwritten. WLC will choose the lesser value and put it into CAPWAP header for DSCP.
4. WLC will send out the packet to AP with QoS WLAN setting on the outer CAPWAP and AVC inner DSCP setting.
5. AP strips the CAPWAP header and sends the packet on air with AVC DSCP setting; if AVC was not applied to an application then that application will adopt the QoS setting of the WLAN.
Refer below deployment guide for more details on AVC
http://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-2/AVC_DG/AVC_8point2_dg.html
HTH
Rasika
*** Pls rate all useful responses ***
I have applied QoS as silver in my WLAN & planning to configure AVC to mark DSCP value for Skype. If I configure the AVC & map 802.1p values, will the WLC send the frames out with correct CoS value.
You have to apply "Platinum" QoS profile to your SSID and then make sure skype application traffic marked up using AVC. Below is the summary of upstream & downstream AVC treatment.
Upstream
1. Packet comes with or without inner DSCP from wireless side (wireless client).
2. AP will add DSCP in the CAPWAP header that is configured on WLAN (QoS based configuration).
3. WLC will remove CAPWAP header.
4. AVC module on the controller will overwrite the DSCP to the configured marked value in the AVC profile and send it out.
1. Packet comes from switch with or without inner DSCP wired side value.
2. AVC module will overwrite the inner DSCP value.
3. Controller will compare WLAN QoS configuration (as per 802.1p value that is actually 802.11e) with inner DSCP value that NBAR had overwritten. WLC will choose the lesser value and put it into CAPWAP header for DSCP.
4. WLC will send out the packet to AP with QoS WLAN setting on the outer CAPWAP and AVC inner DSCP setting.
5. AP strips the CAPWAP header and sends the packet on air with AVC DSCP setting; if AVC was not applied to an application then that application will adopt the QoS setting of the WLAN.
Refer below deployment guide for more details on AVC
http://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-2/AVC_DG/AVC_8point2_dg.html
HTH
Rasika
*** Pls rate all useful responses ***
