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C
G
ONFIGURING
LOBAL
W
I
EB
NTERFACE
To configure loopback detection:
Click Spanning Tree, Loopback Detection.
1.
Click Port or Trunk to display the required interface type.
2.
Modify the required loopback detection attributes.
3.
Click Apply
4.
Figure 98: Configuring Port Loopback Detection
S
STA
ETTINGS FOR
Use the Spanning Tree > STA (Configure Global - Configure) page to
configure global settings for the spanning tree that apply to the entire
switch.
CLI R
EFERENCES
"Spanning Tree Commands" on page 891
◆
C
U
OMMAND
SAGE
Spanning Tree Protocol
◆
Uses RSTP for the internal state machine, but sends only 802.1D
BPDUs. This creates one spanning tree instance for the entire network.
If multiple VLANs are implemented on a network, the path between
specific VLAN members may be inadvertently disabled to prevent
network loops, thus isolating group members. When operating multiple
VLANs, we recommend selecting the MSTP option.
Rapid Spanning Tree Protocol
◆
RSTP supports connections to either STP or RSTP nodes by monitoring
the incoming protocol messages and dynamically adjusting the type of
protocol messages the RSTP node transmits, as described below:
STP Mode – If the switch receives an 802.1D BPDU (i.e., STP BPDU)
■
after a port's migration delay timer expires, the switch assumes it is
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C
8
HAPTER
Configuring Global Settings for STA
2
2
| Spanning Tree Algorithm
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Troubleshooting
