Dell Force10 TeraScale C Series, Справочное руководство

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1426 | Spanning Tree Protocol (STP)
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spanning-tree 0
c e s
Assigns a Layer 2 interface to STP instance 0 and configures a port cost or port priority, or enables
loop guard, root guard, or the Portfast feature on the interface.
Syntax spanning-tree stp-id { cost cost | { loopguard | rootguard } |
portfast [ bpduguard [ shutdown-on-violation ]] | priority priority }
Parameters
Defaults cost
= depends on the interface type;
priority
= 8
Command Modes
INTERFACE
Command
History
stp-id
Enter the STP instance ID. Range: 0
cost cost
Enter the keyword
cost
followed by a number as the cost.
Range: 1 to 65535
Defaults:
• 100 Mb/s Ethernet interface = 19
• 1-Gigabit Ethernet interface = 4
• 10-Gigabit Ethernet interface = 2
• Port Channel interface with 100 Mb/s Ethernet = 18
• Port Channel interface with 1-Gigabit Ethernet = 3
• Port Channel interface with 10-Gigabit Ethernet = 1
loopguard Enter the keyword loopguard to enable STP loop guard on a port or port-channel
interface.
rootguard Enter the keyword rootguard to enable STP root guard on a port or port-channel
interface.
portfast
[
bpduguard
[ shutdown-on-
violation
]]
Enter the keyword portfast to enable Portfast to move the interface into forwarding
mode immediately after the root fails.
Enter the optional keyword bpduguard to disable the port when it receives a BPDU.
Enter the optional keyword
s
hutdown-on-violation
to hardware disable an
interface when a BPDU is received and the port is disabled.
priority priority Enter keyword priority followed by a number as the priority.
Range: zero (0) to 15. Default: 8
Version 8.5.1.0 Introduced the loopguard and rootguard options on the E-Series ExaScale.
Version 8.4.2.1 Introduced the loopguard and rootguard options on the E-Series TeraScale, C-Series,
and S-Series.
Version 8.2.1.0 Introduced shutdown-on-violation option.
Version 7.7.1.0 Introduced on S-Series.
Version 7.5.1.0 Introduced on C-Series.
Version 6.2.1.1 Introduced.