Concept Guide

spanning-tree msti
Congure multiple spanning tree instance cost and priority for an interface.
Syntax
spanning-tree msti instance {cost cost | priority priority}
Parameters
msti instance Enter the keyword msti and the MST instance number. The range is from zero (0) to 63.
cost cost (OPTIONAL) Enter the keyword cost then the port cost value. The range is from 1 to
200000. The defaults are:
• 10-Gigabit Ethernet interface = 2000
• Port Channel interface with one 10 Gigabit Ethernet = 2000
• Port Channel with two 10 Gigabit Ethernet = 1800
• Port Channel with two 100 Mbps Ethernet = 180000
priority priority Enter keyword priority then a value in increments of 16 as the priority. The range is
from 0 to 240. The default is 128.
Defaults
• cost = depends on the interface type
• priority = 128
Command Modes INTERFACE
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
spanning-tree mstp
Congures a Layer 2 MSTP interface as an edge port with (optionally) a bridge protocol data unit (BPDU) guard, or enables the root guard
or loop guard feature on the interface.
Syntax
spanning-tree mstp {edge-port [bpduguard [shutdown-on-violation]] | bpdufilter|
rootguard}
Parameters
edge-port Enter the keywords edge-port to congure the interface as a multiple spanning tree
edge port.
bpduguard (OPTIONAL) Enter the keyword portfast to enable Portfast to move the interface into
forwarding mode immediately after the root fails.
Enter the keyword bpduguard to disable the port when it receives a BPDU.
bpdulter (OPTIONAL) Enter the keyword edgeport to enable edge port conguration to move
the interface into forwarding mode immediately after the root fails. Enter the keyword
bpdufilter to stop sending and receiving BPDUs on the port-fast enabled ports.
Multiple Spanning Tree Protocol (MSTP) 891