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Thread: CFG H3 Sec 1.1: No Switch may generate a TC when any access port goes down.

  1. #1

    CFG H3 Sec 1.1: No Switch may generate a TC when any access port goes down.

    There is point in Sec 1.1 of H3 CFG:
    None of the switches may generate a TC when any of the access port goes down.

    What do we have to do for this ?
    Is there any specific command to achieve this requirement.

  2. #2

    Re: CFG H3 Sec 1.1: No Switch may generate a TC when any access port goes down.

    Does this command has anything to do with this requirement:
    no spanning-tree mst simulation post global

  3. #3

    Re: CFG H3 Sec 1.1: No Switch may generate a TC when any access port goes down.

    Avoid TCN Generation with the portfast Command

    The portfast feature is a Cisco proprietary change in the STP implementation. The command is applied to specific ports and has two effects:
    Ports that come up are put directly in the forwarding STP mode, instead of going through the learning and listening process. The STP still runs on ports with portfast.
    The switch never generates a TCN when a port configured for portfast goes up or down.- speaks to "None of the switches may generate a TC when any of the access port goes down"

  4. The Following 3 Users Say Thank You to cc13093 For This Useful Post:

    orowp (10-09-2018) , ping li (08-11-2019) , yjp58 (10-29-2018)

  5. #4

    Re: CFG H3 Sec 1.1: No Switch may generate a TC when any access port goes down.

    Quote Originally Posted by cc13093 View Post
    Avoid TCN Generation with the portfast Command

    The portfast feature is a Cisco proprietary change in the STP implementation. The command is applied to specific ports and has two effects:
    Ports that come up are put directly in the forwarding STP mode, instead of going through the learning and listening process. The STP still runs on ports with portfast.
    The switch never generates a TCN when a port configured for portfast goes up or down.- speaks to "None of the switches may generate a TC when any of the access port goes down"

    Thanks cc13093:

    So is the following command sufficient:
    spanning-tree portfast edge default

  6. #5

    Re: CFG H3 Sec 1.1: No Switch may generate a TC when any access port goes down.

    Quote Originally Posted by orowp View Post
    Thanks cc13093:

    So is the following command sufficient:
    spanning-tree portfast edge default
    That is correct solution brother

  7. The Following User Says Thank You to Nexus For This Useful Post:

    orowp (10-09-2018)

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