R3303-HP HSR6800 Routers Layer 2 - LAN Switching Command Reference

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stp tc-snooping
Use stp tc-snooping to enable topology change (TC) snooping.
Use undo stp tc-snooping to disable TC snooping.
Syntax
stp tc-snooping
undo stp tc-snooping
Default
TC snooping is disabled.
Views
System view
Default command level
2: System level
Usage guidelines
This command is supported only on the HSR6802/HSR6804/HSR6808 routers that have SAP-4EXP
cards.
TC snooping and spanning tree protocols are mutually exclusive. Before enabling TC snooping, first
disable the spanning tree feature globally.
TC snooping does not take effect on the ports on which BPDU tunneling is enabled for spanning tree
protocols. For more information about BPDU tunneling, see Layer 2—LAN Switching Configuration
Guide.
Examples
# Disable the spanning tree feature globally and enable TC snooping globally.
<Sysname> system-view
[Sysname] undo stp enable
[Sysname] stp tc-snooping
Related commands
stp enable
stp timer forward-delay
Use stp timer forward-delay to set the forward delay timer of the device.
Use undo stp timer forward-delay to restore the default.
Syntax
stp timer forward-delay time
undo stp timer forward-delay
Default
The forward delay timer is 15 seconds.