Igmp Snooping Example - Cisco NM-8B-U - HW ROUTERS L-M User Manual

16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series
Switch(config-pmap)# exit
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# switchport mode access
Switch(config-if)# service-policy input flow1t
Configuring the CoS-to-DSCP Map Example
The following example shows how to modify and display the CoS-to-DSCP map:
Switch# configure terminal
Switch(config)# mls qos map cos-dscp 8 8 8 8 24 32 56 56
Switch(config)# end
Switch# show mls qos maps cos-dscp
Cos-dscp map:
Configuring the DSCP-to-CoS Map Example
The following example shows how the DSCP values 26 and 48 are mapped to CoS value 7. For the
remaining DSCP values, the DSCP-to-CoS mapping is the default.
Switch(config)# mls qos map dscp-cos 26 48 to 7
Switch(config)# exit
Switch# show mls qos maps dscp-cos
Dscp-cos map:
Displaying QoS Information Example
The following example shows how to display the DSCP-to-CoS maps:
Switch# show mls qos maps dscp-cos
Dscp-cos map:

IGMP Snooping Example

Default IGMP Snooping Configuration
IGMP Snooping is enabled by default on a VLAN or subnet basis. Multicast routing has to be enabled
on the router first and then PIM (Multicast routing protocol) has to be enabled on the VLAN interface
so that the Ethernet switch network module acknowledges the IGMP join and leave messages that are
sent from the hosts connected to the Ethernet switch network module.
Router(config)# ip multicast-routing
Router(config-if)# interface VLAN1
Router(config-if)# ip-address 192.168.10.1 255.255.255.0
Router(config-if)# ip pim sparse-mode
cos: 0 1 2 3 4
--------------------------------
dscp: 8 8 8 8 24 32 56 56
dscp: 0 8 10 16 18 24 26 32 34 40 46 48 56
-----------------------------------------------
cos: 0 1 1 2 2
dscp: 0 8 10 16 18 24 26 32 34 40 46 48 56
-----------------------------------------------
cos: 0 1 1 2 2
Configuration Examples for the 16- and 36-Port Ethernet Switch Module
5 6 7
3 7 4 4 5 5 7 7
3 3 4 4 5 5 6 7
Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ
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