624 CHAPTER 46: IGMP CONFIGURATION
n
■ The reset igmp group command cannot clear the IGMP forwarding entries of
static joins.
■ The reset igmp group port-info command cannot clear Layer 2 port
information about IGMP multicast groups of static joins.
c
CAUTION: The reset igmp group command may cause an interruption of
receivers’ reception of multicast data.
IGMP Configuration
Example
Network requirements
■ Receivers receive VOD information through the multicast mode. Receivers of
different organizations form stub networks N1 and N2, and Host A and Host C
are receivers in N1 and N2 respectively.
■ Switch A in the PIM network connects to N1, and both Switch B and Switch C
connect to N2.
■ Switch A connects to N1 through VLAN-interface 100, and to other devices in
the PIM network through VLAN-interface 101.
■ Switch B and Switch C connect to N2 through their respective VLAN-interface
200, and to other devices in the PIM network through VLAN-interface 201 and
VLAN-interface 202 respectively.
■ IGMPv3 is required between Switch A and N1. IGMPv2 is required between the
other two switches and N2, with Switch B as the IGMP querier.
View IGMP configuration and
running information
display igmp interface [ interface-type
interface-number ] [ verbose ]
Available in any
view
View routing information in the
IGMP routing table
display igmp routing-table
[ source-address [ mask { mask |
mask-length }] | group-address [ mask
{ mask | mask-length }]] *
Available in any
view
Clear IGMP forwarding entries reset igmp group { all | interface
interface-type interface-number { all |
group-address [ mask { mask |
mask-length }] [source-address [ mask
{ mask | mask-length }]]}}
Available in user
view
Clear Layer 2 port information
about IGMP multicast groups
reset igmp group port-info { all |
group-address } [ vlan vlan-id ]
Available in user
view
To do… Use the command… Description
To Next Page
Loading...
