Optical Systems Design OSD2524, User Manual

Page: 132 / 402

OPTICAL SYSTEMS DESIGN
DOC ID: 10120001
OSD2524 OPERATOR MANUAL
PAGE 132
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).
Buttons