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Layer 2 Services — Bridging, Address Learning, and Forwarding

Junos OS Layer 2 Configuration Guide

Overview
Configuration
Administration
Troubleshooting

Layer 2 Bridging

Bridge Domains

Virtual Switches

Layer 2 Learning and Forwarding for Bridge Domains

Layer 2 Learning and Forwarding for Bridge Domains Functioning as Switches with Layer 2 Trunk Ports

Guidelines for Configuring VLAN Identifiers for Bridge Domains and VPLS Routing Instances

Layer 2 Address Learning and Forwarding
Layer 2 Learning and Forwarding Overview

Layer 2 Bridging
Bridge Domains Virtual Switches Layer 2 Learning and Forwarding for Bridge Domains Layer 2 Learning and Forwarding for Bridge Domains Functioning as Switches with Layer 2 Trunk Ports Guidelines for Configuring VLAN Identifiers for Bridge Domains and VPLS Routing Instances

Layer 2 Bridging

Bridge Domains

Virtual Switches

Layer 2 Learning and Forwarding for Bridge Domains

Layer 2 Learning and Forwarding for Bridge Domains Functioning as Switches with Layer 2 Trunk Ports

Guidelines for Configuring VLAN Identifiers for Bridge Domains and VPLS Routing Instances

Layer 2 Address Learning and Forwarding
Layer 2 Learning and Forwarding Overview

Layer 2 Bridging and Layer 3 IP Routing
Configuring a Bridge Domain Configuring VLAN IDs for Bridge Domains or VPLS Routing Instances Configuring IRB for Bridge Domains Configuring Bridge Domains as Switches for Layer 2 Trunk Ports

Layer 2 Bridging and Layer 3 IP Routing

Configuring a Bridge Domain

Configuring VLAN IDs for Bridge Domains or VPLS Routing Instances

Configuring IRB for Bridge Domains

Configuring Bridge Domains as Switches for Layer 2 Trunk Ports

Layer 2 Virtual Switches
Configuring IRB for a Bridge Domain in a Layer 2 Virtual Switch Configuring VPLS Ports in a Virtual Switch Configuring a Layer 2 Virtual Switch with a Layer 2 Trunk Port Configuring a Layer 2 Virtual Switch

Layer 2 Virtual Switches

Configuring IRB for a Bridge Domain in a Layer 2 Virtual Switch

Configuring VPLS Ports in a Virtual Switch

Configuring a Layer 2 Virtual Switch with a Layer 2 Trunk Port

Configuring a Layer 2 Virtual Switch

Layer 2 Learning and Forwarding for Bridge Domains
Disabling MAC Learning for a Bridge Domain or Logical Interface Configuring Static MAC Addresses for Logical Interfaces in a Bridge Domain Configuring the Size of the MAC Address Table Limiting MAC Addresses Learned from an Interface in a Bridge Domain Enabling MAC Accounting for a Bridge Domain

Layer 2 Learning and Forwarding for Bridge Domains

Disabling MAC Learning for a Bridge Domain or Logical Interface

Configuring Static MAC Addresses for Logical Interfaces in a Bridge Domain

Configuring the Size of the MAC Address Table

Limiting MAC Addresses Learned from an Interface in a Bridge Domain

Enabling MAC Accounting for a Bridge Domain

Layer 2 Learning and Forwarding for Bridge Domains Functioning as Switches with Layer 2 Trunk Ports
Disabling MAC Learning for a Set of Bridge Domains Limiting MAC Addresses Learned from a Trunk Port Configuring the Size of the MAC Address Table for a Set of Bridge Domains Enabling MAC Accounting for a Set of Bridge Domains

Layer 2 Learning and Forwarding for Bridge Domains Functioning as Switches with Layer 2 Trunk Ports

Disabling MAC Learning for a Set of Bridge Domains

Limiting MAC Addresses Learned from a Trunk Port

Configuring the Size of the MAC Address Table for a Set of Bridge Domains

Enabling MAC Accounting for a Set of Bridge Domains

Layer 3 Tunnel Services Interfaces with a DPC
Configuring Layer 3 Tunnel Services Interfaces on an MX Series Router with a DPC

Layer 2 Address Learning and Forwarding
Configuring the MAC Table Timeout Interval Enabling MAC Accounting Limiting MAC Addresses Learned from Each Logical Interface Disabling Layer 2 Learning and Forwarding

Layer 2 Address Learning and Forwarding

Configuring the MAC Table Timeout Interval

Enabling MAC Accounting

Limiting MAC Addresses Learned from Each Logical Interface

Disabling Layer 2 Learning and Forwarding

Configuration Statements for Bridge Domains
[edit bridge-domains] Hierarchy Level • bridge-domains • bridge-options • domain-type • interface • interface-mac-limit • mac-statistics • mac-table-size • no-mac-learning • packet-action • routing-interface • static-mac • vlan-id • vlan-id-list • vlan-tags

Configuration Statements for Bridge Domains

[edit bridge-domains] Hierarchy Level

• bridge-domains

• bridge-options

• domain-type

• interface

• interface-mac-limit

• mac-statistics

• mac-table-size

• no-mac-learning

• packet-action

• routing-interface

• static-mac

• vlan-id

• vlan-id-list

• vlan-tags

Configuration Statements for Bridge Domains Functioning as Switches with Layer 2 Trunk Ports
[edit switch-options] Hierarchy Level • switch-options • interface-mac-limit • mac-statistics • mac-table-size • no-mac-learning • packet-action

Configuration Statements for Bridge Domains Functioning as Switches with Layer 2 Trunk Ports

[edit switch-options] Hierarchy Level

• switch-options

• interface-mac-limit

• mac-statistics

• mac-table-size

• no-mac-learning

• packet-action

Configuration Statements for Layer 2 Address Learning and Forwarding
[edit protocols l2-learning] Hierarchy Level • l2-learning • global-mac-limit • global-mac-statistics • global-mac-table-aging-time • global-no-mac-learning • interface-mac-limit • packet-action

Configuration Statements for Layer 2 Address Learning and Forwarding

[edit protocols l2-learning] Hierarchy Level

• l2-learning

• global-mac-limit

• global-mac-statistics

• global-mac-table-aging-time

• global-no-mac-learning

• interface-mac-limit

• packet-action