Configuring an Edge Port

An edge port allows RSTP and MSTP to converge faster than the original STP. The protocol does not need to wait for BPDUs to be received on edge ports. Configure interfaces that are not connected to any Layer 2 bridge as edge ports. The JUNOS software supports automatic identification of edge ports as described in the RSTP standard. This parameter is ignored if the STP is configured to run the original spanning-tree version.

If the edge port is configured at both the VSTP global and VLAN levels, the configuration at the VLAN level overrides the global configuration.

To configure the interface as an edge port, include the following statement:

You can configure this statement at the following hierarchy levels:

• [edit protocols (mstp | rstp | vstp) interface interface-name]
• [edit protocols mstp msti msti-id interface interface-name]
• [edit routing-instances routing-instance-name protocols (mstp | rstp | vstp) interface interface-name]
• [edit routing-instances routing-instance-name protocols mstp msti msti-id interface interface-name]
• [edit protocols vstp vlan vlan-id interface interface-name]
• [edit routing-instances routing-instance-name protocols vstp vlan vlan-id interface interface-name]

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