Kontron AT8404 CLI - Manual (Page 135)

AT8404 Switching Commands
Page 2 - 99 AT8404 CLI Reference Manual
2.18.11 show igmpsnooping mrouter vlan
This command displays information about statically configured ports.
2.18.12 show mac-address-table igmpsnooping
This command displays the IGMP Snooping entries in the MFDB table.
2.19 IGMP Snooping Querier Commands
IGMP Snooping requires that one central switch or router periodically query all end-devices on the network to
announce their multicast memberships. This central device is the “IGMP Querier”. The IGMP query responses,
known as IGMP reports, keep the switch updated with the current multicast group membership on a port-by-port
basis. If the switch does not receive updated membership information in a timely fashion, it will stop forwarding
multicasts to the port where the end device is located.
This section describes commands used to configure and display information on IGMP Snooping Queriers on the
network and, separately, on VLANs.
Term Definition
Interface The port on which multicast router information is being displayed.
Multicast Router
Attached
Indicates whether multicast router is statically enabled on the interface.
VLAN ID The list of VLANs of which the interface is a member.
Format show igmpsnooping mrouter vlan
Mode Privileged EXEC
Term Definition
Interface The port on which multicast router information is being displayed.
VLAN ID The list of VLANs of which the interface is a member.
Format show mac-address-table igmpsnooping
Mode Privileged EXEC
Term Definition
MAC Address A multicast MAC address for which the switch has forwarding or filtering information. The
format is two-digit hexadecimal numbers that are separated by colons, for example
01:23:45:67:89:AB. In an IVL system the MAC address is displayed as a MAC address and
VLAN ID combination of 8 bytes.
Type The type of the entry, which is either static (added by the user) or dynamic (added to the table
as a result of a learning process or protocol).
Description The text description of this multicast table entry.
Interfaces The list of interfaces that are designated for forwarding (Fwd:) and filtering (Flt:).