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Junos® OS Ethernet Interfaces Configuration ... - Juniper Networks

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Junos ®<br />

<strong>OS</strong> 12.3 <strong>Ethernet</strong> <strong>Interfaces</strong> <strong>Configuration</strong> Guide<br />

vi<br />

Configuring <strong>Ethernet</strong> Loopback Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45<br />

Configuring Flow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45<br />

Ignoring Layer 3 Incomplete Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46<br />

Configuring the Link Characteristics on <strong>Ethernet</strong> <strong>Interfaces</strong> . . . . . . . . . . . . . . . . . 46<br />

Configuring Gratuitous ARP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48<br />

Adjusting the ARP Aging Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49<br />

Configuring the Interface Speed on <strong>Ethernet</strong> <strong>Interfaces</strong> . . . . . . . . . . . . . . . . . . . . 49<br />

Configuring the Ingress Rate Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50<br />

Configuring Multicast Statistics Collection on <strong>Ethernet</strong> <strong>Interfaces</strong> . . . . . . . . . . . . . 51<br />

Configuring Weighted Random Early Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . 51<br />

Chapter 3 Configuring 802.1Q VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53<br />

802.1Q VLANs Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53<br />

Configuring Dynamic 802.1Q VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54<br />

802.1Q VLAN IDs and <strong>Ethernet</strong> Interface Types . . . . . . . . . . . . . . . . . . . . . . . . . . . 55<br />

Enabling VLAN Tagging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56<br />

Configuring Single-Tag Framing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57<br />

Configuring Dual Tagging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57<br />

Configuring Mixed Tagging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57<br />

Configuring Mixed Tagging Support for Untagged Packets . . . . . . . . . . . . . . 58<br />

Example: Configuring Mixed Tagging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58<br />

Example: Configuring Mixed Tagging to Support Untagged Packets . . . . . . . 59<br />

Binding VLAN IDs to Logical <strong>Interfaces</strong> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59<br />

Binding VLAN IDs to Logical <strong>Interfaces</strong> Overview . . . . . . . . . . . . . . . . . . . . . . 59<br />

Binding a VLAN ID to a Logical Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60<br />

Binding a VLAN ID to a Single-Tag Logical Interface . . . . . . . . . . . . . . . . 60<br />

Binding a VLAN ID to a Dual-Tag Logical Interface . . . . . . . . . . . . . . . . . 60<br />

Binding a Range of VLAN IDs to a Logical Interface . . . . . . . . . . . . . . . . . . . . . 61<br />

Binding a Range of VLAN IDs to a Single-Tag Logical Interface . . . . . . . . 61<br />

Binding a Range of VLAN IDs to a Dual-Tag Logical Interface . . . . . . . . . 61<br />

Example: Binding Ranges VLAN IDs to Logical <strong>Interfaces</strong> . . . . . . . . . . . . 61<br />

Binding a List of VLAN IDs to a Logical Interface . . . . . . . . . . . . . . . . . . . . . . . 62<br />

Binding a List of VLAN IDs to a Single-Tag Logical Interface . . . . . . . . . . 62<br />

Binding a List of VLAN IDs to a Dual-Tag Logical Interface . . . . . . . . . . . 63<br />

Example: Binding Lists of VLAN IDs to Logical <strong>Interfaces</strong> . . . . . . . . . . . . 63<br />

Associating VLAN IDs to VLAN Demux <strong>Interfaces</strong> . . . . . . . . . . . . . . . . . . . . . . . . . 64<br />

Associating VLAN IDs to VLAN Demux <strong>Interfaces</strong> Overview . . . . . . . . . . . . . 64<br />

Associating a VLAN ID to a VLAN Demux Interface . . . . . . . . . . . . . . . . . . . . 65<br />

Associating a VLAN ID to a Single-Tag VLAN Demux Interface . . . . . . . . 65<br />

Associating a VLAN ID to a Dual-Tag VLAN Demux Interface . . . . . . . . . 65<br />

Configuring VLAN Encapsulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65<br />

Example: Configuring VLAN Encapsulation on a Gigabit <strong>Ethernet</strong><br />

Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66<br />

Example: Configuring VLAN Encapsulation on an Aggregated <strong>Ethernet</strong><br />

Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66<br />

Copyright © 2012, <strong>Juniper</strong> <strong>Networks</strong>, Inc.

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