User manual

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wEb-bASED bROwSER MANAGEMENT
the port is to leave STP enabled but to congure the port as an edge port. A
good candidate for disabling STP would be a port that services a single host
computer. You can enable RSTP of all aggregations.
Edge Port: Either “Enabled” (default) or “Disabled.” Edge ports are ports that do
not participate in the Spanning Tree, but still send conguration messages. Edge
ports transition directly to frame forwarding without any listening and learning
delays. The MAC tables of edge ports do not need to be ushed when topology
changes occur in the STP network. Unlike an STP-disabled port, accidentally
connecting an edge port to another port in the spanning tree will result in a
detectable loop.
Path Cost: Enter a value from 0 to 2147483647, or “Auto” (default). Setting the cost
manually provides the ability to preferentially select specic ports to carry trafc
over others. Leave this eld set to Auto to use the standard RSTP port costs as
negotiated (20,000 for 1Gbps links, 200,000 for 100Mbps links and 2,000,000
for 10Mbps links); or the standard STP port costs as negotiated (4 for 1Gbps
links, 19 for 100Mbps links and 100 for 10Mbps links).
MIRRORING
Port mirroring is a troubleshooting tool in which all trafc on a designated port is
copied, or mirrored, to a target port. If a protocol analyzer is attached to the target