Draytek g2080 User Manual
VigorSwitch G2080 User’s Guide
82
Admin Edge Port:
If user selects “Yes”, this port will be an edge port. An Edge
Port is a port connected to a device that knows nothing about
STP or RSTP. Usually, the connected device is an end
station. Edge Ports will immediately transit to forwarding
state and skip the listening and learning state because the
edge ports cannot create bridging loops in the network. This
will expedite the convergence. When the link on the edge
port toggles, the STP topology keeps unchanged. Unlike the
designate port or root port though, an edge port will transit to
a normal spanning-tree port immediately if it receives a
BPDU.
Default: No
Port is a port connected to a device that knows nothing about
STP or RSTP. Usually, the connected device is an end
station. Edge Ports will immediately transit to forwarding
state and skip the listening and learning state because the
edge ports cannot create bridging loops in the network. This
will expedite the convergence. When the link on the edge
port toggles, the STP topology keeps unchanged. Unlike the
designate port or root port though, an edge port will transit to
a normal spanning-tree port immediately if it receives a
BPDU.
Default: No
Admin Point To Point:
We say a port is a point-to-point link, from RSTP’s view, if
it is in full-duplex mode but is shared link if it is in
half-duplex mode. RSTP fast convergence can only happen
on point-to-point links and on edge ports. This can expedite
the convergence because this will have the port fast transited
to forwarding state.
There are three parameters, Auto, True and False, used to
configure the type of the point-to-point link. If configure this
parameter to be Auto, it means RSTP will use the duplex
mode resulted from the auto-negotiation. In today’s switched
networks, most links are running in full-duplex mode. For
sure, the result may be half-duplex, in this case, the port will
not fast transit to Forwarding state. If it is set as True, the
port is treated as point-to-point link by RSTP and
unconditionally transited to Forwarding state. If it is set as
False, fast transition to Forwarding state will not happen on
this port.
Default: Auto
it is in full-duplex mode but is shared link if it is in
half-duplex mode. RSTP fast convergence can only happen
on point-to-point links and on edge ports. This can expedite
the convergence because this will have the port fast transited
to forwarding state.
There are three parameters, Auto, True and False, used to
configure the type of the point-to-point link. If configure this
parameter to be Auto, it means RSTP will use the duplex
mode resulted from the auto-negotiation. In today’s switched
networks, most links are running in full-duplex mode. For
sure, the result may be half-duplex, in this case, the port will
not fast transit to Forwarding state. If it is set as True, the
port is treated as point-to-point link by RSTP and
unconditionally transited to Forwarding state. If it is set as
False, fast transition to Forwarding state will not happen on
this port.
Default: Auto
M Check:
Migration Check. It forces the port sending out an RSTP
BPDU instead of a legacy STP BPDU at the next
transmission. The only benefit of this operation is to make
the port quickly get back to act as an RSTP port. Click <M
Check> button to send a RSTP BPDU from the port you
specified.
BPDU instead of a legacy STP BPDU at the next
transmission. The only benefit of this operation is to make
the port quickly get back to act as an RSTP port. Click <M
Check> button to send a RSTP BPDU from the port you
specified.