-- 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.)
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