JN0-643 · Question #42
Referring to the exhibit, which two statements are correct about the MSTP configuration? (Choose two.) user@switch> show spanning-tree bridge STP bridge parameters Context ID : 0 Enabled protocol…
The correct answer is B. The local switch is the root bridge for MSTI 1. D. The local switch is not the root bridge for MSTI 2. See the full explanation below for the reasoning.
Question
Referring to the exhibit, which two statements are correct about the MSTP configuration? (Choose two.) user@switch> show spanning-tree bridge STP bridge parameters Context ID : 0 Enabled protocol : MSTP STP bridge parameters for CIST Root ID : 32768.00:19:e2:55:1a:01 Root cost : 0 Root port : ge-0/0/10.0 CIST regional root : 32768.00:19:e2:55:1a:01 CIST internal root cost : 20000 Hello time : 2 seconds Maximum age : 20 seconds Forward delay : 15 seconds Hop count : 19 Message age : 0 Number of topology changes : 2 Time since last topology change : seconds Topology change initiator : ge-0/0/10.0 Topology change last recvd. from : 00:19:e2:55:24:8c Local parameters Bridge ID : 32768.b0:c6:9a:73:27:90 Extended system ID : 0 Internal instance ID : 0 STP bridge parameters for MSTI 1 MSTI regional root : 4097.b0:c6:9a:73:27:90 Hello time : 2 seconds Maximum age : 20 seconds Forward delay : 15 seconds Number of topology changes : 2 Time since last topology change : seconds Topology change initiator : ge-0/0/1.0 Topology change last recvd. from : b0:c6:9a:73:39:81 Local parameters Bridge ID : 4097.b0:c6:9a:73:27:90 Extended system ID : 0 Internal instance ID : 1 STP bridge parameters for MSTI 2 MSTI regional root : 4098.b0:c6:9a:73:39:90 Root cost : 20000 Root port : ge-0/0/1.0 Hello time : 2 seconds Maximum age : 20 seconds Forward delay : 15 seconds Hop count : 19 Number of topology changes : 2 Time since last topology change : seconds Topology change initiator : ge-0/0/1.0 Topology change last recvd. from : b0:c6:9a:73:39:81 Local parameters Bridge ID : 8194.b0:c6:9a:73:27:90 Extended system ID : 0 Internal instance ID : 2
Options
- AThe local switch is not the root bridge for MSTI 1.
- BThe local switch is the root bridge for MSTI 1.
- CThe local switch is the root bridge for MSTI 2.
- DThe local switch is not the root bridge for MSTI 2.
How the community answered
(58 responses)- A16% (9)
- B79% (46)
- C5% (3)
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