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Information and recommendations:

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Information and recommendations:

  • Spanning Tree wird immer auf Ports zu einer weiteren Netzwerk-Komponente konfiguriert (z.B. ein Router oder ein Switch is always configured on ports to other network devices (e.g. a router or a switch). 
  • STP is deprecated and should not be used anymore.
  • In most scenarios it makes sense to use RSTP. There is one instance for the whole network. In contrast to STP topology changes happen much faster with RSTP, thus minimizing downtimes. 
  • In some scenarios it can be useful to use MSTP. It is used for a VLAN group  (a group with only one VLAN is also possible) and forms an instance for each group.
  • On GS-23xx and GS-3xxx switches Spanning Tree has to be activated separately for Link Aggregation:
    • GS-23xx: In the menu Configuration → Spanning Tree → CIST Ports the option STP Enabled has to be activated under CIST Aggregated Port Configuration

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Konfiguration von Stacking auf einem Switch der XS-Serie:


Information and recommendations:

  • Stacking is configured on dedicated Stacking ports to connect the switches with each other.
  • If Stacking is active, management and monitoring of the switches As of February 2022, Stacking can also be configured via the LANCOM Management Cloud (LMC) are not possible ( if LCOS SX as of December 2021). Therefore it is important that a decision for Stacking or the LMC is made in advanceversion 5.20 is used on the switches.


Interoperability to other features:

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