Spanning Tree: enable edge-port

Information

Spanning Tree Auto-Edge is a feature that can be used in conjunction with Root-Guard. Auto-Edge is used when connecting to a non-STP enabled device were a loop cant occur and the port is brought into operation as soon as there is link. If an xSTP/BPDU is received on a edge port it looses its edge port status and STP is enabled and converges and xSTP/TCN is sent. If the BPDU bridge-id has a better priority then the port will go into blocking state. Auto-edge is enabled by default. Edge-Port feature enables a port to never part-take in the spanning tree decision process.

Solution

Run the following command on the device to configure edge-port: configure service vpls sap stp edge-port

See Also

https://infoproducts.alcatel-lucent.com/aces/cgi-bin/dbaccessfilename.cgi/9305050101_V1_SR-OS Security Best Practices v2.0.pdf

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-5

Plugin: Alcatel

Control ID: 8c86a202a1df68b16edc58f11194425cd66e54b8eb87f32480bfd7be73942e06