54
www.cooperbussmann.com/wirelessresources
Cooper Bussmann 5073E-T Managed Ethernet Switch User Manual
Rev Version 1.1
Primary Port
Secondary port
Any two ports from a switch can be chosen to build the ring topology.
NOTE Although any two ports of switch can be chosen for this option, the
selected ports must be equipped with the same speed and the same type of
interface as other switches in the same ring. For example, if port 1 and port 2
with a speed of 10/100 TX are chosen, the ring ports of other switches in the
same ring must be 10/100 TX.
Control VLAN ID
Because the Pro-Ring2se master switch generates BPDU packets every 10 ms to
check the connection status, and the same BPDU packet is used by other switches
to find a target switch, it is better to isolate the BPDU packets used for checking
connection status from those used for other purposes. The best way to resolve this
is to use VLAN for isolating the BPDU packets. The default Control VLAN ID for the
connection status checking is set to “1” if you do not use VLAN. If there is another
need to use VLAN ID 1, you can set a unique VLAN ID for this field.
NOTE This is a required field.
Protect VLAN IDs
This field is used if the system requires a trunk VLAN ID for communicating with other
switches. If not, the default value is “1.” This option lets the switch know what VLAN
group will be isolated with Control VLAN. Enter all VLAN group IDs in this column,
except the control VLAN ID.
NOTE This is a required field.
Status
Shows the current status of ring ports.
Ring State:
•
Complete
—The switch has Pro-Ring2se topology enabled, and the cable is
installed.
•
Linkdown
—One or two of the port links are down.
•
Idle
—The switch is configured with Pro-Ring2se topology.
Primary Port:
•
Linkup
—This ring port is connected to another switch’s ring port, and is
functioning okay.
•
Linkdown
—This ring port has no connection.
•
Blocking
—This ring port is dedicated to use the backup path.
Secondary Port:
Same as Primary Port. If disabling Pro-Ring2se after enabling redundancy, the
setting of VLAN will not be cleared, the “disable Pro-Ring2se” will not affect the
original VLAN operation.
6.5.6 Multicast Support
The Internet Group Management Protocol (IGMP) is an internal protocol of the Internet Protocol (IP) that manages
multicast traffic by using switches, routers, and hosts that support IGMP. Enabling IGMP allows the ports to detect
IGMP queries, report packets, and manage IP multicast traffic through the switch. IGMP has three fundamental
types of messages, as shown in the following table.
Message
Description
Query
A message sent from the querier (IGMP router or switch) asking for a response from
each host belonging to the multicast group.
Report
A message sent by a host to the querier to indicate that the host wants to be or is
already a member of a given group indicated in the report message.
