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Which two situations would cause the problem?

— Exhibit —
user@SwitchA# show protocols mstp
configuration-name region1;
bridge-priority 16k;
msti 1 {
bridge-priority 16k;
vlan [10 20];
}
msti 2 {
bridge-priority 8k;
vlan [30 40];
}
user@SwitchB# show protocols mstp
configuration-name region1;
bridge-priority 8k;
msti 1 {
bridge-priority 16k;
vlan [10 20];

}
msti 2 {
bridge-priority 8k;
vlan [30 40];
}
user@SwitchA>monitor traffic interface xe-0/0/0 no-resolve extensive
10:36:00.594220 Out STP 802.1s, Rapid STP, CIST Flags [Forward, Agreement], CIST bridge-id
4000.5c:5e:ab:72:da:41.8215, length 118
message-age 0.00s, max-age 20.00s, hello-time 2.00s, forwarding-delay 15.00s
CIST root-id 4000.5c:5e:ab:72:da:41, ext-pathcost 0 int-pathcost 0, port-role Designated
CIST regional-root-id 4000.5c:5e:ab:72:da:41
MSTP Configuration Name regio-2, revision 0, digest ca136a235706b316c8db8f921067a68f
CIST remaining-hops 20
MSTI 1, Flags [Proposal, Forward, Agreement], port-role Designated
MSTI regional-root-id 4001.5c:5e:ab:72:da:41, pathcost 0
MSTI bridge-prio 4, port-prio 8, hops 2010:36:00.594220
10:36:00.594223 Out 802.1s, Rapid STP, CIST Flags [Forward, Agreement], CIST bridge-id
4000.5c:5e:ab:72:da:41.8215, length 118
message-age 0.00s, max-age 20.00s, hello-time 2.00s, forwarding-delay 15.00s
CIST root-id 4000.5c:5e:ab:72:da:41, ext-pathcost 0 int-pathcost 0, port-role Designated
CIST regional-root-id 4000.5c:5e:ab:72:da:41
MSTP Configuration Name regio-2, revision 0, digest ca136a235706b316c8db8f921067a68f
CIST remaining-hops 20
MSTI 1, Flags [Proposal, Forward, Agreement], port-role Designated
MSTI regional-root-id 4001.5c:5e:ab:72:da:41, pathcost 0
MSTI bridge-prio 4, port-prio 8, hops 20

— Exhibit —
Click the Exhibit button.
Referring to the exhibit, a customer notices that MSTP is not converging on MSTI 2. To
troubleshoot the problem, the customer captured traffic on the link (xe-0/0/0) of SwitchA
connecting to SwitchB.
Which two situations would cause the problem? (Choose two.)

PrepAway - Latest Free Exam Questions & Answers

A.
MSTI 1 and MSTI 2 are part of the same MSTP region.

B.
The bridge priority value of the MSTI 2 is the same on SwitchA and SwitchB.

C.
VLAN 30 and VLAN 40 are not configured on SwitchA.

D.
VLAN 30 and VLAN 40 are not members of trunk link xe-0/0/0 on SwitchA.

5 Comments on “Which two situations would cause the problem?

  1. Luis says:

    This question is misleading. If you look at the output switch A is sending a Configuration Name of “regio-2” that could also be a problem (assuming that switch B has a “region1” configuration name as shown on the top of the configuration).




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