xStack
®
DES-3528/DES-3552 Series Layer 2 Stackable Fast Ethernet Managed Switch User Manual
121
Migrate
Setting this parameter as
Yes
will set the ports to send out BPDU packets to other
bridges, requesting information on their STP setting If the Switch is configured for RSTP,
the port will be capable to migrate from 802.1D STP to 802.1w RSTP. Migration should be
set as yes on ports connected to network stations or segments that are capable of being
upgraded to 802.1w RSTP on all or some portion of the segment.
Edge
Choosing the
True
parameter designates the port as an edge port. Edge ports cannot
create loops, however an edge port can lose edge port status if a topology change creates
a potential for a loop. An edge port normally should not receive BPDU packets. If a BPDU
packet is received, it automatically loses edge port status. Choosing the
Auto
parameter
will indicate that the port will be able to automatically enable edge port status if needed.
P2P
Choosing the
True
parameter indicates a point-to-point (P2P) shared link. P2P ports are
similar to edge ports, however they are restricted in that a P2P port must operate in full-
duplex. Like edge ports, P2P ports transition to a forwarding state rapidly thus benefiting
from RSTP. A p2p value of
false
indicates that the port cannot have p2p status.
Auto
allows the port to have p2p status whenever possible and operate as if the p2p status
were true. If the port cannot maintain this status, (for example if the port is forced to half-
duplex operation) the p2p status changes to operate as if the p2p value were
False
. The
default setting for this parameter is
True
. The default value
True
is equivalent to the
Auto
value.
Port STP
Allows STP to be
Enabled
or
Disabled
for the ports.
Restricted Role
Toggle between
True
and
False
to set the restricted role state of the packet. The default
value is
False
.
Restricted TCN
Toggle between
True
and
False
to set the restricted TCN of the packet. The default value
is
False
.
Forward BPDU
This field can be
Enabled
or
Disabled.
When
Enabled,
it allows the forwarding of STP
BPDU packets from other network devices. The default is
Disabled
.
Click
Apply
to implement changes made.
MST Configuration Identification
The following windows in the
MST Configuration Identification
section allow the user to configure a MSTI instance
on the Switch. These settings will uniquely identify a multiple spanning tree instance set on the Switch. The Switch
initially possesses one
CIST
or Common Internal Spanning Tree of which the user may modify the parameters for but
cannot change the MSTI ID for, and cannot be deleted.
To view the
MST Configuration Identification
window, click
L2 Features > Spanning Tree > MST Configuration
Identification
Figure 3 - 64 MST Configuration Identification window
Summary of Contents for DES-3528 - xStack Switch - Stackable
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