Cisco Sg3008 Manual

Multicast
Adding MAC Group Address
256 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 
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Entries that were created both in this page and in the IP Multicast Group Address 
page are displayed. For those created in the IP Multicast Group Address page, the 
IP addresses are converted to MAC addresses.
STEP  4Click Add to add a static MAC Group Address.
STEP  5Enter the parameters.
•VLAN ID—Defines the VLAN ID of the new Multicast group.
•MAC Group...

Multicast
Adding IP Multicast Group Addresses
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Adding IP Multicast Group Addresses
The IP Multicast Group Address page is similar to the MAC Group Address page 
except that Multicast groups are identified by IP addresses. 
The IP Multicast Group Address page enables querying and adding IP Multicast 
groups.
To define and view IP Multicast groups:
STEP 1Click Multicast > IP Multicast Group...

Multicast
Configuring IGMP Snooping
258 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 
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•Source IP Address—Defines the source address to be included.
STEP  6Click Apply. The IP Multicast group is added, and the device is updated.
STEP  7To configure and display the registration of an IP group address, select an address 
and click Details.
The VLAN ID, IP Version, IP Multicast Group Address, and Source IP Address 
selected are displayed as read-only...

Multicast
Configuring IGMP Snooping
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When IGMP Snooping is enabled globally or on a VLAN, all IGMP packets are 
forwarded to the CPU. The CPU analyzes the incoming packets, and determines 
the following: 
•Which ports are asking to join which Multicast groups on what VLAN.
•Which ports are connected to Multicast routers (Mrouters) that are 
generating IGMP queries.
•Which ports are receiving PIM,...

Multicast
Configuring IGMP Snooping
260 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 
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There can be only one IGMP Querier in a network. The device supports 
standards-based IGMP Querier election. Some of the values of the operational 
parameters of this table are sent by the elected querier. The other values are 
derived from the device.
STEP  4Enter the parameters.
•VLAN ID—Select the VLAN ID on which IGMP snooping is defined.
•IGMP Snooping...

Multicast
MLD Snooping
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•Operational Last Member Query Interval—Displays the Last Member 
Query Interval sent by the elected querier.
•Immediate Leave—Enable Immediate Leave to decrease the time it takes to 
block a Multicast stream sent to a member port when an IGMP Group Leave 
message is received on that port. 
•IGMP Querier Status—Enable or disable the IGMP Querier.
•Administrative Querier...

Multicast
MLD Snooping
262 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 
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In an approach similar to IGMP snooping, MLD frames are snooped as they are 
forwarded by the device from stations to an upstream Multicast router and vice 
versa. This facility enables a device to conclude the following:
•On which ports stations interested in joining a specific Multicast group are 
located
•On which ports Multicast routers sending Multicast frames are...

Multicast
Querying IGMP/MLD IP Multicast Group
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•Operational Query Robustness—Displays the robustness variable sent by 
the elected querier.
•Query Interval—Enter the Query Interval value to be used by the device if 
the device cannot derive the value from the messages sent by the elected 
querier. 
•Operational Query Interval—The time interval in seconds between General 
Queries received from the...

Multicast
Defining Multicast Router Ports
264 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 
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There might be a difference between information on this page and, for example, 
information displayed in the MAC Group Address page
. Assuming that the system 
is in MAC-based groups and a port that requested to join the following Multicast 
groups 224.1.1.1 and 225.1.1.1, both are mapped to the same MAC Multicast 
address 01:00:5e:01:01:01. In this case,...

Multicast
Defining Forward All Multicast
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To statically configure or see dynamically-detected ports connected to the 
Multicast router:
STEP 1Click Multicast > Multicast Router Port.
STEP  2Enter some or all of following query filter criteria:
•VLAN ID equals to—Select the VLAN ID for the router ports that are 
described.
•IP Version equals to—Select the IP version that the Multicast router...