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Validation Framework

Test Bed

The diagram below shows the suggested topology used for the JVD lab evaluating various EVPN multihoming fabric topologies.

Figure 1: JVD Lab Proposal JVD Lab Proposal

The suggested lab design allows for the evaluation of the following:

  • EVPN multihoming fabrics with:
    • Two collapsed core switches acting as spine and leaf.
      • One 4-Member Virtual Chassis access switch acting as ToR.
      • One standalone access switch acting as ToR.
  • Service block function through:
    • Integrated into existing collapsed core switches and acting as service leaf and collapsed core at the same time.
    • Attached WAN routers through Layer 2 or Layer 3 exit.
    • Attached servers through ESI-LAG redundant links.
  • WAN router integration:
    • Layer 2 fabric exit.
      • ESI-LAG-based trunks.
    • Layer 3 fabric exit.
      • OSPF as routing protocol.
      • eBGP as routing protocol
    • Attached to:
      • Collapsed core switch.
    • Redundant WAN router design:
      • Two Juniper MX routers.
      • Two Juniper SRX firewalls in cluster configuration.
  • Wi-Fi access points:
    • Local-attached to the access switches with Power over Ethernet (PoE).
    • Various Wi-Fi clients.
    • Basic Wi-Fi roaming.
  • Overlay server attached to a service block functionality:
    • DHCP server.
    • Other services.
  • RADIUS server:
    • Server location:
      • Local server attached to underlay network.
      • Remote Juniper Mist Access Assurance through public cloud.
    • Authentication for the following clients:
      • Wired clients attached to access switches.
      • Wi-Fi clients using the access points.
    • Authentication based on clients:
      • MAC address.
      • 802.1X EAP authentication.
    • Dynamic authorization profiles:
      • Single VLAN assigned.
      • Multiple VLANs assigned.
      • Filter-Id ACL assigned.
  • Testing fabric features such as:
    • DHCP relay
    • Protect RE-filter
    • DHCP snooping
    • Storm control
    • MAC address limit with aging
    • DNS
    • NTP

The following network topology was tested as part of this JVD.

Figure 2: EVPN Multihoming Fabric with Two Collapsed Cores EVPN Multihoming Fabric with Two Collapsed Cores

Platforms / Devices Under Test (DUT)

The table below shows the devices that were tested and on which Junos OS version:

Table 1: Devices Under Test
Devices Under Test
Fabric function Device Junos OS Release
Collapsed Core Switches QFX5120 23.4R2
Access Virtual Chassis 4 member EX4400-48P 23.4R2
Access Switch standalone EX4100-48P 23.4R2
WAN-Router SRX380 23.4R2

Test Bed Configuration

In the appendix section of this JVD, we are sharing information on exactly how some of the tests were performed. Contact Juniper or your Juniper account representative to obtain the full archive of the test bed configuration used for this JVD.