Cisco Sg3008 Manual

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Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version)  246
 
Managing MAC Address Tables
This section describe how to add MAC addresses to the system. It covers the 
following topics:
•Configuring Static MAC Addresses
•Managing Dynamic MAC Addresses
•Defining Reserved MAC Addresses
Types of MAC Addresses
There are two types of MAC addresses—static and dynamic. Depending on their 
type, MAC addresses are either stored in the Static Address table or in the...

Managing MAC Address Tables
Configuring Static MAC Addresses
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Configuring Static MAC Addresses
Static MAC addresses are assigned to a specific physical interface and VLAN on 
the device. If that address is detected on another interface, it is ignored, and is not 
written to the address table.
To define a static address:
STEP 1Click MAC Address Tables > Static Addresses.
The Static Addresses page...

Managing MAC Address Tables
Managing Dynamic MAC Addresses
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Managing Dynamic MAC Addresses
The Dynamic Address Table (bridging table) contains the MAC addresses 
acquired by monitoring the source addresses of frames entering the device.
To prevent this table from overflowing and to make room for new MAC addresses, 
an address is deleted if no corresponding traffic is received for a certain period....

Managing MAC Address Tables
Defining Reserved MAC Addresses
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Defining Reserved MAC Addresses
When the device receives a frame with a Destination MAC address that belongs to 
a reserved range (per the IEEE standard), the frame can be discarded or bridged. 
The entry in the Reserved MAC Address Table can either specify the reserved 
MAC address or the reserved MAC address and a frame type:
To add an...

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Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version)  250
 
Multicast
This section describes the Multicast Forwarding feature, and covers the following 
topics:
•Multicast Forwarding
•Defining Multicast Properties
•Adding MAC Group Address
•Adding IP Multicast Group Addresses
•Configuring IGMP Snooping
•MLD Snooping
•Querying IGMP/MLD IP Multicast Group
•Defining Multicast Router Ports
•Defining Forward All Multicast
•Defining Unregistered Multicast...

Multicast
Multicast Forwarding
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For Multicast forwarding to work across IP subnets, nodes, and routers must be 
Multicast-capable. A Multicast-capable node must be able to:
•Send and receive Multicast packets.
•Register the Multicast addresses being listened to by the node with local 
routers, so that local and remote routers can route the Multicast packet to 
the nodes.
Typical Multicast Setup...

Multicast
Multicast Forwarding
252 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 
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The device can forward Multicast streams based on one of the following options: 
•Multicast MAC Group Address
•IP Multicast Group Address (G) 
•A combination of the source IP address (S) and the destination IP Multicast 
Group Address (G) of the Multicast packet. 
One of these options can be configured per VLAN. 
The system maintains lists of Multicast groups for each...

Multicast
Defining Multicast Properties
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If the device is enabled as an IGMP Querier, it star ts after 60 seconds have passed 
with no IGMP traffic (queries) detected from a Multicast router. In the presence of 
other IGMP Queriers, the device might (or might not) stop sending queries, based 
on the results of the standard querier selection process.
Multicast Address Properties
Multicast addresses...

Multicast
Defining Multicast Properties
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A common way of representing Multicast membership is the (S,G) notation where 
S is the (single) source sending a Multicast stream of data, and G is the IPv4 or IPv6 
group address. If a Multicast client can receive Multicast traffic from any source of 
a specific Multicast group, this is saved as (*,G).
The following are ways of forwarding Multicast frames:...

Multicast
Adding MAC Group Address
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STEP  3Click Apply. The Running Configuration file is updated.
Adding MAC Group Address
The device supports forwarding incoming Multicast traffic based on the Multicast 
group information. This information is derived from the IGMP/MLD packets 
received or as the result of manual configuration, and it is stored in the Multicast 
For warding Database (MFDB) .
When...