Cisco Systems OL-6415-04 manual Disabling Igmp Snooping Helper, Sample Configuration Using the CLI

Chapter 9 Configuring QoS

Configuring QoS

Note In this release, clients are blocked from using an access category when you select Enable for Admission Control.

Using the Admission Control check boxes, you can control client use of the access categories. When you enable admission control for an access category, clients associated to the access point must complete the WMM admission control procedure before they can use that access category. However, access points do not support the admission control procedure in this release, so clients cannot use the access category when you enable Admission Control.

Disabling IGMP Snooping Helper

When Internet Group Membership Protocol (IGMP) snooping is enabled on a switch and a client roams from one access point to another, the clients’ multicast session is dropped. When the access points’ IGMP snooping helper is enabled, the access point sends a general query to the wireless LAN, prompting the client to send in an IGMP membership report. When the network infrastructure receives the host’s IGMP membership report, it ensures delivery of that host’s multicast data stream.

The IGMP snooping helper is enabled by default. To disable it, browse to the QoS Policies - Advanced page, select Disable, and click Apply.

Sample Configuration Using the CLI

	class-map match-all	_class_WMM1
	match ip precedence	1
	class-map match-all	_class_WMM0
	match ip precedence	0
	class-map match-all	_class_WMM3
	match ip precedence	3
	class-map match-all	_class_WMM2
	match ip precedence	2
	class-map match-all	_class_WMM5
	match ip precedence	5
	class-map match-all	_class_WMM4
	match ip precedence	4
	class-map match-all	_class_WMM7
	match ip precedence	7
	class-map match-all	_class_WMM6
	match ip precedence	6
	policy-map WMM
	class _class_WMM0
	set cos 0
	class _class_WMM1
	set cos 1
	class _class_WMM2
	set cos 2
	class _class_WMM3
	set cos 3
	class _class_WMM4
	set cos 4
	class _class_WMM5
	set cos 5
	class _class_WMM6
	set cos 6
	class _class_WMM7
	set cos 7
	Cisco Wireless ISR and HWIC Access Point Configuration Guide
9-6		OL-6415-04