- play_arrow EVPN-VXLAN
- play_arrow Overview
- Understanding EVPN with VXLAN Data Plane Encapsulation
- EVPN-over-VXLAN Supported Functionality
- Understanding VXLANs
- VXLAN Constraints on EX Series, QFX Series, PTX Series, and ACX Series Devices
- EVPN Over VXLAN Encapsulation Configuration Overview for QFX Series and EX4600 Switches
- Implementing EVPN-VXLAN for Data Centers
- PIM NSR and Unified ISSU Support for VXLAN Overview
- Routing IPv6 Data Traffic through an EVPN-VXLAN Network with an IPv4 Underlay
- Understanding How to Configure VXLANs and Layer 3 Logical Interfaces to Interoperate
- Understanding GBP Profiles
- play_arrow Configuring EVPN-VXLAN Interfaces
- Understanding Flexible Ethernet Services Support With EVPN-VXLAN
- EVPN-VXLAN Lightweight Leaf to Server Loop Detection
- Overlapping VLAN Support Using VLAN Translation in EVPN-VXLAN Networks
- Overlapping VLAN Support Using Multiple Forwarding Instances or VLAN Normalization
- Layer 2 Protocol Tunneling over VXLAN Tunnels in EVPN-VXLAN Bridged Overlay Networks
- MAC Filtering, Storm Control, and Port Mirroring Support in an EVPN-VXLAN Environment
- Example: Micro and Macro Segmentation using Group Based Policy in a VXLAN
- DHCP Smart Relay in EVPN-VXLAN
- play_arrow Configuring VLAN-Aware Bundle Services, VLAN-Based Services, and Virtual Switch Support
- play_arrow Load Balancing with EVPN-VXLAN Multihoming
- play_arrow Setting Up a Layer 3 VXLAN Gateway
- play_arrow Configuring an EVPN-VXLAN Centrally-Routed Bridged Overlay
- play_arrow Configuring an EVPN-VXLAN Edge-Routed Bridging Overlay
- play_arrow IPv6 Underlay for VXLAN Overlays
- play_arrow Multicast Features with EVPN-VXLAN
- Multicast Support in EVPN-VXLAN Overlay Networks
- Overview of Multicast Forwarding with IGMP Snooping or MLD Snooping in an EVPN-VXLAN Environment
- Example: Preserving Bandwidth with IGMP Snooping in an EVPN-VXLAN Environment
- Overview of Selective Multicast Forwarding
- Configuring the number of SMET Nexthops
- Assisted Replication Multicast Optimization in EVPN Networks
- Optimized Intersubnet Multicast in EVPN Networks
- play_arrow Configuring the Tunneling of Q-in-Q Traffic
- play_arrow Tunnel Traffic Inspection on SRX Series Devices
- play_arrow Fault Detection and Isolation in EVPN-VXLAN Fabrics
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- play_arrow EVPN-MPLS
- play_arrow Overview
- play_arrow Convergence in an EVPN MPLS Network
- play_arrow Pseudowire Termination at an EVPN
- play_arrow Configuring the Distribution of Routes
- Configuring an IGP on the PE and P Routers on EX9200 Switches
- Configuring IBGP Sessions Between PE Routers in VPNs on EX9200 Switches
- Configuring a Signaling Protocol and LSPs for VPNs on EX9200 Switches
- Configuring Entropy Labels
- Configuring Control Word for EVPN-MPLS
- Understanding P2MPs LSP for the EVPN Inclusive Provider Tunnel
- Configuring Bud Node Support
- play_arrow Configuring VLAN Services and Virtual Switch Support
- play_arrow Configuring Integrated Bridging and Routing
- EVPN with IRB Solution Overview
- An EVPN with IRB Solution on EX9200 Switches Overview
- Anycast Gateways
- Configuring EVPN with IRB Solution
- Configuring an EVPN with IRB Solution on EX9200 Switches
- Example: Configuring EVPN with IRB Solution
- Example: Configuring an EVPN with IRB Solution on EX9200 Switches
- play_arrow Configuring IGMP or MLD Snooping with EVPN-MPLS
-
- play_arrow EVPN E-LAN Services
- play_arrow EVPN-VPWS
- play_arrow Configuring VPWS Service with EVPN Mechanisms
- Overview of VPWS with EVPN Signaling Mechanisms
- Control word for EVPN-VPWS
- Overview of Flexible Cross-Connect Support on VPWS with EVPN
- Overview of Headend Termination for EVPN VPWS for Business Services
- Configuring VPWS with EVPN Signaling Mechanisms
- Example: Configuring VPWS with EVPN Signaling Mechanisms
- FAT Flow Labels in EVPN-VPWS Routing Instances
- Configuring EVPN-VPWS over SRv6
- Configuring Micro-SIDs in EVPN-VPWS
-
- play_arrow EVPN-ETREE
- play_arrow Overview
- play_arrow Configuring EVPN-ETREE
-
- play_arrow Using EVPN for Interconnection
- play_arrow Interconnecting VXLAN Data Centers With EVPN
- play_arrow Interconnecting EVPN-VXLAN Data Centers Through an EVPN-MPLS WAN
- play_arrow Extending a Junos Fusion Enterprise Using EVPN-MPLS
-
- play_arrow PBB-EVPN
- play_arrow Configuring PBB-EVPN Integration
- play_arrow Configuring MAC Pinning for PBB-EVPNs
-
- play_arrow EVPN Standards
- play_arrow Supported EVPN Standards
-
- play_arrow VXLAN-Only Features
- play_arrow Flexible VXLAN Tunnels
- play_arrow Static VXLAN
-
- play_arrow Configuration Statements and Operational Commands
Overview of MAC Mobility
MAC mobility describes the scenario where a host moves from one Ethernet segment to another segment in the EVPN network. Provider Edge (PE) devices discover the host MAC address from its local interfaces or from remote PE devices. When a PE device learns of a new local MAC address, it sends a MAC advertisement route message to other devices in the network. During this time, there are two advertised routes and the PE devices in the EVPN network must decide which of the MAC advertisement messages to use.
To determine the correct MAC address location, PE devices use the MAC mobility extended community field, as defined in RFC 7432, in the MAC advertisement route message. The MAC mobility extended community includes a static flag and a sequence number. The static flag identifies pinned MAC addresses that should not be relocated. The sequence number identifies newer MAC advertisement messages. Starting at 0, the sequence number is incremented for every MAC address mobility event. PE devices running Junos OS apply the following precedence order in determining the MAC advertisement route to use:
Advertisement routes with a local pinned MAC address (static MAC address).
Advertisement routes with a remote pinned MAC address (static MAC address).
Advertisement routes with a higher sequence number.
When there are two advertisement route messages for pinned MAC addresses with different routes or two advertisement route messages with the same sequence number, the local device chooses the advertisement route message from the PE device with the lower IP address.
Figure 1 illustrates a network where a MAC address is relocated from PE1 to PE2. Before the move, a MAC advertisement route message sent by PE1 has the active route for all PE devices in the network. After the relocation, PE2 learns of the new local MAC address and sends an updated MAC advertisement route message. Table 1 lists the action taken by each PE device based on the two MAC advertisements. The PE device generates a syslog message when it encounters conflicts with a pinned MAC address.
Table 1 includes use cases with pinned MAC addresses. These use cases do not apply to PE devices that do not support MAC pinning. To determine whether or not MAC pinning is supported by a particular Juniper Networks device or Junos OS release, see Feature Explorer.
MAC Advertisement | PE1 | PE2 | PE3 |
|---|---|---|---|
PE1: MAC address with a sequence number (n). PE2: MAC address with the sequence number incremented by one (n+1). | Install the remote MAC advertisement route from PE2 because it has a higher sequence number (n+1). | Advertise the local MAC route because it has a higher sequence number (n+1). | Install the remote MAC advertisement route from PE2 because it has a higher sequence number (n+1). |
PE1: MAC address with a sequence number (n). PE2: MAC address with the same sequence number (n). | Advertise the local MAC route because PE1 has the lower IP address (10.0.0.1). | Install the remote MAC advertisement route from PE1 because PE1 has the lower IP address (10.0.0.1). | Use the MAC advertisement route from PE1 because PE1 has the lower IP address (10.0.0.1). |
PE1: Pinned MAC address with the static bit set. PE2: MAC address and a sequence number (n). | Advertise the local MAC route because it is a pinned MAC address. Generate a syslog message. | Install the remote MAC advertisement route from PE1 because it is a pinned MAC address. | Use the MAC advertisement route from PE1 because it is a pinned MAC address. Generate a syslog message. |
PE1: MAC address with a sequence number (n). PE2: Pinned MAC address with the static bit set. | Install the remote the MAC advertisement route from PE2 because it is a pinned MAC address. | Advertise local MAC route because it is a pinned MAC address. Generate a syslog message. | Install the remote MAC advertisement route from PE2 because it is a pinned MAC address. |
PE1: Pinned MAC address with static bit set. PE2: Pinned MAC address with static bit set. | Advertise the local MAC route because it is a local pinned MAC address. Generate a syslog message. | Advertise the local MAC route because it is a local pinned MAC address. Generate a syslog message. | Use the MAC advertisement route from PE1 because PE1 has the lower IP address (10.0.0.1). Generate a syslog message. |
Junos supports MAC mobility automatically by default. To disable
MAC mobility, use the set protocols evpn mac-mobility no-sequence-numbers statement.
