Connecting Model 58000 Switches
893-878-B
2-37
Unsupported Configurations
The following Model 58000 switch configurations are not supported:
•
Where a repeater is placed between two Model 58000 switch ports
configured for auto mode. In this scenario, blocking LattisSpan multicast
packets is not possible; therefore; this design should never be used and
cannot be supported.
•
Installing the Model 58000 switch in a network where the following MAC
address limits are exceeded:
–
1024 MAC addresses per virtual LAN
–
1024 MAC addresses for all of the virtual LANs on a LattisSpan trunk
link
–
8192 MAC addresses per switch community
Exceeding these limits causes performance degradation and can cause
instabilities with the network. Exceeding these limits can also lead to a loss of
connectivity between some devices in the network.
Connecting Model 58000 Switches
Model 58000 switches can be connected to form Model 58000 switch
communities using 100 Mb/s MDA ports. The link that connects two
Model 58000 switches together is called a trunk link.
This section provides information on the following topics:
•
Trunk link creation
•
Address learning across trunks links
•
Redundant trunk links
•
The seven-switch limit between end stations
NOTE:
LattisSpan multicast packets can pass through devices, such as a
fiber optic repeater, that are used to extend the distance of a LattisSpan
trunk link. In this scenario, LattisSpan multicast packets do not have to be
blocked from the repeater or remote bridge.
893-878-B Book Page 37 Monday, May 12, 1997 2:06 PM
Summary of Contents for 58000
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