D-Link DWS-1008 CLI Manual 467
Examples: The following command displays IGMP statistics for VLAN orange:
DWS-1008# show igmp statistics vlan orange
IGMP statistics for vlan orange:
IGMP message type Received Transmitted Dropped
-------------------------------------------------------------------------------------------------
General-Queries 0 0 0
GS-Queries 0 0 0
Report V1 0 0 0
Report V2 5 1 4
Leave 0 0 0
Mrouter-Adv 0 0 0
Mrouter-Term 0 0 0
Mrouter-Sol 50 101 0
DVMRP 4 4 0
PIM V1 0 0 0
PIM V2 0 0 0
Topology notifications: 0
Packets with unknown IGMP type: 0
Packets with bad length: 0
Packets with bad checksum: 0
Packets dropped: 4
The table below describes the fields in this display.
Field Description
IGMP statistics for vlan VLAN name. Statistics are listed separately for each VLAN.
IGMP message type
Type of IGMP message:
• General-Queries—General group membership queries sent by the multicast querier (multicast
router or pseudo-querier).
• GS-Queries—Group-specific queries sent by the the multicast querier to determine whether
there are receivers for a specific group.
• Report V1—IGMP version 1 group membership reports sent by clients who want to be
receivers for the groups.
• Report V2—IGMP version 2 group membership reports sent by clients who want to be
receivers for the groups.
• Leave—IGMP version 2 leave messages sent by clients who want to stop receiving traffic for
a group. Leave messages apply only to IGMP version 2.
• Mrouter-Adv—Multicast router advertisement packets. A multicast router sends this type of
packet to advertise the IP address of the sending interface as a multicast router interface.
IGMP message type
Type of IGMP message, continued:
• Mrouter-Term—Multicast router termination messages. A multicast router sends this type of
message when multicast forwarding is disabled on the router interface, the router interface
is administratively disabled, or the router itself is gracefully shutdown.
• Mrouter-Sol—Multicast router solicitation messages. A multicast client or a switch sends this
type of message to immediately solicit multicast router advertisement messages from the
multicast routers in the subnet.
• DVMRP—Distance Vector Multicast Routing Protocol (DVMRP) messages. Multicast routers
running DVMRP exchange multicast information with these messages.
• PIM V1—Protocol Independent Multicast (PIM) version 1 messages. Multicast routers running
PIMv1 exchange multicast information with these messages.
• PIM V2—PIM version 2 messages.