Broadcast Control; Static Cos; Overriding Cos; Changing Qos Settings - Nortel 2360 Configuration Manual

358 Configuring quality of service

Broadcast control

You also can enhance bandwidth availability on an SSID by enabling the following broadcast control features:
• Proxy ARP—WSS responds on behalf of wireless clients to ARP requests for their IP addresses.
• DHCP Restrict—WSS captures and does not forward any traffic except DHCP traffic for a wireless client who is
still being authenticated and authorized.
• No Broadcast—Sends unicasts to clients for ARP requests and DHCP Offers and Acks instead of forwarding them
as multicasts.
All these broadcast control options are disabled by default.
(To enable broadcast control features, see

Static CoS

You can configure WSS Software to mark all wireless traffic on an SSID with a specific CoS value. When static CoS is
enabled, the AP marks all traffic between clients and the WSS for a given SSID with the static CoS value. The static CoS
value must be configured on the SSID's service profile.
Static CoS is the simplest method of CoS marking to configure. However, the static CoS value applies to all traffic
regardless of traffic type. To instead assign CoS based on specific traffic types within an SSID, use an ACL. (See
riding CoS" (page 358).)
Note.
When static CoS is enabled, you cannot override the static CoS value by using
ACLs to mark CoS.

Overriding CoS

You can configure an ACL that marks packets that match the ACL with a specific CoS value. CoS is not changed in
packets that do not match the ACE (ACL rule) that sets the CoS. (For more information, see
legacy voice over IP" (page
Note.
If static CoS is enabled, the static CoS value is always used. The CoS cannot be
changed using an ACL.

Changing QoS settings

You can change the settings of the following QoS options:
• QoS mode
• U-APSD support
• CAC state and maximum number of sessions
NN47250-500 (320657-F Version 02.01)
"Using the client DSCP value to classify QoS level" (page
434).)
361).)
"Over-
"Enabling prioritization for