PowerFlex
8/24/48 Port GbE PoE Managed Switch User’s Guide
4.6.6
IPv4 SSM information
Source Specific Multicast (SSM) is a datagram delivery model that best supports one-to-many
applications, also known as broadcast applications. SSM is a core network technology of IP multicast
targeted for audio and video broadcast application environments.
For the SSM delivery mode, an IP multicast receiver host must use IGMP Version 3 (IGMPv3) to
subscribe to channel (S, G). By subscribing to this channel, the receiver host is indicating that it wants
to receive IP multicast traffic sent by source host S to group G. The network will deliver IP multicast
packets from source host S to group G to all hosts in the network that have subscribed to the channel
(S, G).
SSM does not require group address allocation within the network, only within each source host.
Different applications running on the same source host must use different SSM groups. Different
applications running on different source hosts can arbitrarily reuse SSM group addresses without
causing any excess traffic on the network.
SSM by INA reserves a
ddresses in the range 232.0.0.0/8 (232.0.0.0 to 232.255.255.255).
In the switch
configure SSM for arbitrary IP multicast addresses also.
To display the IGMPv3 IPv4 SSM Information in the web interface:
1. Navigate to
Configuration
>
IGMP Snooping
>
IPv4 SSM Information
.
2. Check
Auto-refresh
to refresh the page at periodic intervals.
3. Click
Refresh
to refresh an entry of the IGMPv3 IPv4 SSM Information.
4. Click << or >> to move to previous or next entry.
0.
Figure 49:
IPv4 SSM Information
Parameter
Description
Navigating the IGMPv3 Information Table
Each page displays up to 99 entries from the IGMPv3 SSM (Source Specific Multicast) Information table,
default being 20, selected through the "entries per page" field. When first visited, the web page displays the
first 20 entries from the beginning of the IGMPv3 Information Table.
The "Start from VLAN", and "group" fields enable the user to select the starting point in the IGMPv3
Information Table. Clicking the Refresh button will update the displayed table starting from that or the closest
next IGMPv3 Information Table match. In addition, the two input fields will - upon a button click - assume the
value of the first displayed entry, allowing for continuous refresh with the same start address.
The switch will use the last entry of the currently displayed table as a basis for the next lookup. When reaching
the end the text "No more entries" displays.
IGMPv3 Information Table Columns
VLAN ID
VLAN ID of the group.
Groups
Group address of the group displayed.
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Revised: October 30, 2013
Page 68
Summary of Contents for PowerFlex P810
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