Chapter 25 Multicast
OLT2406 User’s Guide
200
Multicast Group (
Filter Mode )
Source Address
This field displays the multicast group source address and source filtering mode. In IPTV, the
multicast group source address means the address of a media server which provides media
content.
IGMPv3 and MLDv2 supports multicast source filtering.
In INCLUDE mode, the client listens to the specified sources only.
In EXCLUDE mode, the client listens to all sources other than the specified address.
When the OLT receives a multicast packet destined to a configured multicast group and the
packet’s source address is in the INCLUDE list or not in the EXCLUDE list, the OLT forwards the
packets to the clients that join this group.
Client IP This field displays an IP address which is a member in this multicast group. In IPTV, this means
the IP address of a set-top box connected to this port.
Up Time This field displays how long (in hh:mm:ss format) this port has been a member of the multicast
group since the last time it joined. In IPTV, this means how long a user has been watching this
channel.
Multicast Group Member
VID This field displays the multicast VLAN ID.
Total This field displays how many ports in this VLAN.
Multicast Group This field displays the IP multicast group addresses in this VLAN.
Number This field displays how many ports belong to this multicast group.
Member This field displays the port number(s) that belong to the multicast group. The port's bonding
group ID also displays in brackets if the port has joined one.
Clear IGMP Counter
Any Select this, select Port or Vlan from the drop-down list box and then click Clear Counter to
have the OLT clear IGMP counters for all ports or for all VLANs.
Port Select this, select a port number from the drop-down list box and then click Clear Counter to
have the OLT clear IGMP counters for the port.
IGMP Per Port Receive Counter
This section displays incoming multicast traffic statistics per port.
Port This field displays a port number and the port’s bonding group ID if it has joined one. A star (*)
displays if the port is the main port in the bonding group.
Report In This column displays how many V1, V2, and V3 multicast join messages and multicast Leave
messages the port has received since the last start up or clearing of the IGMP counters. V1,
V2, and V3 means IGMP versions 1, 2 and 3.
Query In This column displays how many V1, V2, and V3 multicast queries the port has received.
Dropped By This column displays the number of multicast queries this port has dropped due to the
following reasons:
Rate: the receiving rate exceeds the configured rate limit setting. You can configure the limit
setting for the port in the Basic Setting > Port Setup screen.
Others: packets are dropped due to reasons other than the previous one.
IGMP Per Port Specific Counter
This section displays multicast traffic statistics per port.
Port This field displays a port number and the port’s b
o
nding group ID if it has joined one. A star (*)
displays if the port is the main port in the bonding group.
Total
GroupNum
This field displays the total number of multicast groups this port has learned since the last start
up or clearing of the IGMP counters.
Join This field displays the number of multicast groups in Join messages this port has received.
Table 69 Advanced Application > Multicast
LABEL DESCRIPTION
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