RSTP info on proposal

Discussion in 'Cisco' started by srini, Mar 6, 2007.

  1. srini

    srini Guest

    Hi,

    Need help to understand if the proposal will be sent if there is no
    change in the port role when there is change in the root bridge.

    I have three switches connected like this.
    S1-----2/39--------2/39-----S2---2/37----------------5/37---S3.

    Initially S1 is the root, so port 2/37 on S2 will be the designated
    port. Suppose I decrease the priority os S2 such that it takes over as
    new Root bridge. Will there be any proposal sent on port 2/37 as the
    port roles does not change (it still remains as designated port only)
    after taking over as new root bridge.

    Appriciate any help.

    Thanks,
    -Srini.
    srini, Mar 6, 2007
    #1
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  2. srini

    t0 Guest

    On Mar 6, 2:34 pm, "srini" <> wrote:
    > Hi,
    >
    > Need help to understand if the proposal will be sent if there is no
    > change in the port role when there is change in the root bridge.
    >
    > I have three switches connected like this.
    > S1-----2/39--------2/39-----S2---2/37----------------5/37---S3.
    >
    > Initially S1 is the root, so port 2/37 on S2 will be the designated
    > port. Suppose I decrease the priority os S2 such that it takes over as
    > new Root bridge. Will there be any proposal sent on port 2/37 as the
    > port roles does not change (it still remains as designated port only)
    > after taking over as new root bridge.
    >
    > Appriciate any help.
    >
    > Thanks,
    > -Srini.


    Make sure to set your uplink ports (connecting your switches) on full
    duplex (not auto) pick 10or100or1000BT not auto,and set them up as
    trunks, leave the rest to default.

    Joting this down out of memory, could be wrong, but trial and failure
    is a good approach to troubleshooting

    peace t0
    t0, Mar 7, 2007
    #2
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