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After the debugging commands of spanning tree event, port role and status change, use the
network cable to connect Switch A and Switch B.
SwitchA #
debug spanning-tree mstp roles
SwitchA #
debug spanning-tree mstp state
SwitchA #
debug spanning-tree mstp event
Displayed Result
Analysis
05:24:06: %MSTP-7-EVENT: Port event received - port 0/7 link status changed.
05:24:06: %LINEPROTO-5-UPDOWN: Line protocol on port 0/7 , changed state to
up
05:24:06: %MSTP-7-EVENT: Port event received - port 0/7 link speed changed.
05:24:06: %MSTP-7-EVENT: Port event received - port 0/7 duplex status changed.
After the ports are
connected with the network
cables, the port link is UP and
MSTP receives the event of link
UP; meanwhile, the events of
port rate change and duplex
mode change are received.
05:24:06: %MSTP-7-EVENT: Fdb flush on port 0/7 for instance 0.
05:24:06: %MSTP-7-TRANS: Port 0/7 (INST 0) roles trans from Disabled to
Designated.
The port role changes from
DISABLED to DESIGNATED.
05:24:08: %MSTP-7-TRANS: Port 0/7 (INST 0) state trans from Discarding to
Learning.
05:24:10: %MSTP-7-TRANS: Port 0/7 (INST 0) state trans from Learning to
Discarding.
05:24:10: %MSTP-7-TRANS: Port 0/7 (INST 0) state trans from Discarding to
Forwarding.
The port status changes
from DISCARDING to
了
LEARNING, and then to
FORWARDING.
Содержание 065-7434
Страница 1: ...24 Port 10 100 L3 Switch Model 065 7434 Configuration Guide Revision A1 ...
Страница 245: ...245 SIGNAMAX LLC www signamax eu Application Example Example of configuring DHCP Snooping ...
Страница 302: ...302 SIGNAMAX LLC www signamax eu Default status no switching interface ...
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Страница 655: ...287 SIGNAMAX LLC www signamax eu Sub VLAN members in the system ...