INS_CNGE3FE8MS[POE][HO] Rev. 11.7.17 PAGE 88
INSTRUCTION MANUAL CNGE3FE8MS[POE][HO]
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Reset Click to revert to previous values.
Spanning Tree
Please note that Spanning Tree cannot be used in conjunction with ERPS or Loop Protection on
the same switch.
Bridge Settings
This page allows you to configure STP system settings. The settings are used by all STP Bridge
Instances in the switch.
Object Description
Basic Settings
Protocol Version The MSTP / RSTP / STP protocol version setting. Valid values are STP, RSTP and MSTP.
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
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
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.
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