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xStack® DES-3200 Series Layer 2 Ethernet Managed Switch CLI Reference Guide
168
config router_ports_forbidden
Description
This command is used to allow designation of a range of ports as
being not connected to multicast-enabled routers. This ensures that
the forbidden router port will not propagate routing packets out.
Parameters
<vlan_name 32> − The name of the VLAN on which the router port
resides.
<vidlist> − The VID range of the ports to be configured as forbidden
ports.
[add | delete] − Specifies whether to add or delete forbidden ports of
the specified VLAN.
<portlist> − Specifies a range of ports that will be configured as
forbidden router ports.
Restrictions
Only Administrator-level users can issue this command.
Example usage:
To set up forbidden router ports:
DES-3200-28:4#config router_ports_forbidden default add 2-10
Command: config router_ports_forbidden default add 2-10
Success.
DES-3200-28:4#
enable igmp_snooping
Purpose
Used to enable IGMP snooping on the Switch.
Syntax
enable igmp_snooping {forward_mcrouter_only}
Description
This command is used to enable IGMP snooping on the Switch. If
forward_mcrouter_only is specified, the Switch will learn the router
port based on identification of the multicast routing protocol packet
and the IGMP control packet.
Parameters
forward_mcrouter_only − Adding this parameter to the command, the
Switch will learn the router port based on identification of the multicast
routing protocol packet and the IGMP control packet.
Restrictions
Only Administrator-level users can issue this command.
Example usage:
To enable IGMP snooping on the Switch:
DES-3200-28:4#enable igmp_snooping
Command: enable igmp_snooping
Success.
DES-3200-28:4#