OPTICAL SYSTEMS DESIGN
DOC ID: 10118101
OSD2512 OPERATOR MANUAL
PAGE 133
Bridge Priority
Controls the bridge priority. Lower numeric values have better priority. The bridge priority
plus the MSTI instance number, concatenated with the 6-byte MAC address of the switch
forms a
Bridge Identifier
.
For
MSTP
operation, this is the priority of the CIST. Otherwise, this is the priority of the
STP/RSTP bridge.
Hello Time
The interval between sending STP BPDU's. Valid values are in the range 1 to 10 seconds,
default is 2 seconds.
Note: Changing this parameter from the default value is not recommended,
and may have adverse effects on your network.
Forward Delay
The delay used by STP Bridges to transit Root and Designated Ports to Forwarding (used in
STP compatible mode). Valid values are in the range 4 to 30 seconds.
Max Age
The maximum age of the information transmitted by the Bridge when it is the Root Bridge.
Valid values are in the range 6 to 40 seconds,
and
MaxAge must be <= (FwdDelay-1)*2.
Maximum Hop Count
This defines the initial value of remaining Hops for MSTI information generated at the
boundary of an MSTI region. It defines how many bridges a root bridge can distribute its
BPDU information to. Valid values are in the range 6 to 40 hops.
Transmit Hold Count
The number of BPDU's a bridge port can send per second. When exceeded, transmission of
the next BPDU will be delayed. Valid values are in the range 1 to 10 BPDU's per second.
Advanced Settings
Edge Port BPDU Filtering
Control whether a port
explicitly
configured as
Edge
will transmit and receive BPDUs.
Edge Port BPDU Guard
Control whether a port
explicitly
configured as
Edge
will disable itself upon reception of a
BPDU. The port will enter the
error-disabled
state, and will be removed from the active
topology.
Port Error Recovery
Control whether a port in the
error-disabled
state automatically will be enabled after a certain
time. If recovery is not enabled, ports have to be disabled and re-enabled for normal STP
operation. The condition is also cleared by a system reboot.
Port Error Recovery Timeout
The time to pass before a port in the
error-disabled
state can be enabled. Valid values are
between 30 and 86400 seconds (24 hours).
