User manual
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wEb-bASED bROwSER MANAGEMENT
the port is to leave STP enabled but to congure 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 conguration 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 specic ports to carry trafc
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 trafc on a designated port is
copied, or mirrored, to a target port. If a protocol analyzer is attached to the target