Display Stp Portdown - H3C S3100 Series Command Manual

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# Display the ports that are blocked by STP guard functions.

<Sysname> display stp abnormalport

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Ethernet1/0/20

Ethernet1/0/21

Table 1-4 Description on the fields of the display stp abnormalport command

Block Reason

display stp portdown

display stp portdown

Use the display stp portdown command to display the ports that are shut down by STP guard

# Display the ports that are shut down by STP guard functions.

<Sysname> display stp portdown

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Ethernet1/0/20

Table 1-5 Description on the fields of the display stp portdown command

Block Reason

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Root-Protection

Loop-Protection

MSTI ID in the MST region

Port that has been blocked

The function blocking the port:

Root-Protected: root guard function

Loop-Protected: loop guard function

Formatcompatibility-Protected:

incompatibility protection function

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BPDU-Protection

Port that has been shut down

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