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Unsupported Configurations
893-00965-A
Restrictions to BayStack 281xx Switches in Bridged and Routed Networks
The following BayStack 281xx switch configurations are not supported:
•
A multiple segment repeater with end stations attached to the shared
media is placed between two BayStack 281xx 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.
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.
•
The BayStack 281xx switch is installed 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.
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