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Supported Platforms
cost (Spanning Trees)
Syntax
cost cost;
Hierarchy Level
[edit protocols mstp interface (all | interface-name)], [edit protocols mstp interface (all | interface-name) arp-on-stp], [edit protocols mstp msti msti-id interface interface-name arp-on-stp], [edit protocols mstp msti msti-id interface interface-name], [edit protocols rstp interface (all | interface-name)], [edit protocols rstp interface (all | interface-name) arp-on-stp], [edit protocols stp interface (all | interface-name)],[edit protocols stp interface (all | interface-name) arp-on-stp],[edit protocols vstp vlan vlan-id interface (all | interface-name)],[edit protocols vstp vlan vlan-id interface (all | interface-name) arp-on-stp]
Release Information
Statement introduced in Junos OS Release 9.0 for EX Series switches.
Statement updated in Junos OS Release 9.4 for EX Series switches to add VSTP support.
Description
For Spanning Tree Protocol (STP), Rapid Spanning Tree Protocol (RSTP), VLAN Spanning Tree Protocol (VSTP), or Multiple Spanning Tree Protocol (MSTP), configure the link cost to control which bridge is the designated bridge and which interface is the designated interface.
Default
The link cost is determined by the link speed.
Options
cost—Link cost associated with the port.
Range: 1 through 200,000,000
Required Privilege Level
routing—To view this statement in the
configuration.
routing-control—To add this statement
to the configuration.
