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Solution and Validation Key Parameters

Supported Platforms and Positioning

Table 1: Supported Platforms and Positioning
Platform Device Junos OS Release
DUT Platforms ACX7100-48L, ACX7100-32C, ACX7509 Junos OS Evolved 22.3R1-S1
Helper Platforms ACX710, MX480, PTX1000, MX10003 Junos OS 22.3R1

Solution Design and Infrastructure

  • 5G xHaul MBH reference architecture
  • Seamless MPLS across xHaul IGP domains (Inter-AS BGP-LU)
  • Fast failover & detection TI-LFA, BFD, OAM, ECMP, etc.
  • Segment Routing L-ISIS
  • Redundant Route Reflectors
  • EVPN-VPWS and FXC A/A Multihoming
  • EVPN-ELAN with Multihoming and EVPN IRB
  • BGP-VPLS, L2VPN, L2Circuit, L3VPN
  • Inter-AS Option B/C
  • O-RAN Alliance [ORAN.WG9.XPSAAS-v02.00]

Scale and Performance

  • This section contains key performance indexes (KPIs) used in solution validation targets. Validated KPIs are multi-dimensional and reflect our observations in customer networks or reasonably represent solution capabilities. These numbers do not indicate the maximum scale and performance of individual tested devices. For uni-dimensional data on individual SKUs, kindly contact your Juniper Networks representatives.
  • The Juniper JVD team continuously strives to enhance solution capabilities. Consequently, solution KPIs may change without prior notice. Always refer to the latest JVD test report for up-to-date solution KPIs. For the latest comprehensive test report, please reach out to your Juniper Networks representative
Table 2: Scale Summary
Feature AN3 (ACX7100-48L) Access / CSR AG1.1 (ACX7509) Pre-Agg / HSR AG1.2 (ACX7100-32C) Pre-Agg / HSR SAG (MX10003) Services Agg
RIB/FIB 351k/123k 303k/121k 295k/121k 381k/116k
VLANS 2115 7300 7300 8414
EVPN-VPWS SH 1000 1000 1000 0
EVPN-VPWS MH 101 101 101 0
EVPN-ELAN (L3VPN) 0 500 500 0
Bridge Domain (L3VPN) 0 500 500 0
L2Circuit 200 1000 1000 2400
L2VPN 200 1000 1000 2410
L3VPN (OSPF) 100 100 100 1101
L3VPN (BGP) 100 100 100 100
VPLS 200 1000 1000 2400
MAC (VPLS) 10.6k 22k 102k 145k
CFM UP MEP 1200 1000 1000 1000

Anticipated Fronthaul Network Resiliency and Latency

The solution creates a resilient network system that safeguards against link or node problems in the Fronthaul segment. It ensures that if a link fails between CSR and HSR nodes, the traffic flow will be restored within 50 milliseconds or less. Additionally, the expected delay for packets between RU and DU should not exceed 120 microseconds.

Key Feature List

  • EVPN-VPWS
  • EVPN-ELAN
  • EVPN-FXC
  • L3VPN
  • BGP-VPLS
  • L2Circuit
  • L2VPN
  • Segment Routing ISIS
  • TI-LFA (link/node)
  • ISIS
  • BGP
  • BGP-LU
  • BFD
  • Community-based Routing Policy
  • Route Reflection
  • IPv4
  • IPv6
  • LACP
  • AE
  • CFM
  • LFM
  • VLAN (802.1q)

Contact your Juniper Networks representative for the full test report and feature list.

Test Bed

Figure 1 illustrates the test bed we used. The network consists of four layers: access, pre-aggregation, aggregation, and transport core.

  • Fronthaul segment: Uses a spine-leaf access topology, connecting to redundant HSR (AG1.1/1.2) nodes, which also handle 4G pre-aggregation and 5G HSR functions. The pre-aggregation AG1 nodes provide connectivity for O-DUs and include additional emulated access insertion points, specifically the Remote Tester (RT), for scalability purposes.
  • Midhaul and Backhaul segments: These are represented by ring topologies and serve aggregation and core roles, but they are not the main focus of this discussion.
Figure 1: JVD 5G Fronthaul Lab Topology A diagram of a computer Description automatically generated

Table 3: Topology Definitions
Layer Devices Under Test
Access ACX7100-48L as DUT (AN3), ACX7100-48L (AN1), ACX710 (AN2) cell site routers
Pre-Aggregation ACX7509 (AG1.1) and ACX7100-32C (AG1.2) DUT HSRs
Aggregation MX204s (AG2.1/AG2/2), MX10003 (AG3.1), MX480 (AG3.2) aggregation routers
Core Network PTX1000 (CR1) and MX10003 (CR2) core routers. MX10003 (SAG) services router

In the testing process, we used three main devices as Devices Under Test (DUT) to run all the test cases. The ACX7100-48L router was used as the Access Node Cell Site Router (CSR) for both 5G and 4G. The ACX7100-32C and ACX7509 routers were used as the Pre-Aggregation Hub Site Routers (HSR) for the AG1 role.

To support and expand the testing environment, we introduced additional helper nodes. We added another ACX7100-48L router (AN1) to scale the setup and emulate identical traffic flows between each HSR DUT, ensuring accurate and uniform validation against both ACX7509 and ACX7100-32C HSRs. MX routers were used in different roles, such as Aggregation (AG2/AG3), Core (CR2), and services router (SAG). The PTX platform was used for the Core Router (CR1).

For a complete test report with detailed information about the hardware and software used, contact your Juniper Networks representative.

Solution Validation Goals

Here are the major test goals:

  • Validate VPN services, including L3VPN, EVPN-VPWS, EVPN-FXC, EVPN-ELAN, BGP-VPLS, L2Circuit, and L2VPN over SR-MPLS transport architecture.
  • Validate TI-LFA redundancy mechanisms over Segment Routing with Seamless MPLS / BGP-LU
  • Validate network resiliency, traffic restoration, and measured convergence time for ACX7100-48L (AN3), ACX7100-32C (AG1.2) and ACX7509 (AG1.1), with adjacent link/node failures for all traffic types.
  • Measure solution resilience of layer 2/3 flows from specified DUTs, including:
    • Access Node (AN) to Pre-Aggregation AG1 (O-RU to O-DU)
    • Pre-Aggregation AG1 (including O-DU) to Services Gateway (SAG)
    • Access Node (AN) to SAG (EPC)
  • Validate network stability for major 4G/5G traffic flows at scale with each VPN service type over SR-MPLS during normal and stress conditions.
  • Validate consistency and resiliency of the ACX7100-48L, ACX7100-32C and ACX7509 systems against negative stress conditions (enabled/disable control and data plane daemons, add/delete configurations, etc.)
  • Identify product limitations, anomalies, and open Problem Reports (PRs) exposed during validation stage.
  • OAM¾ Connectivity Fault Management (CFM), Y.1731¾over VPLS and EVPN-VPWS services.
  • Flow-Aware Transport Pseudowire (FAT-PW) load-balancing.

Solution Validation Non-Goals

Non-goals represent protocols and technologies outside the scope of the current validation.

  • Class of Service
  • Underlay MPLS/SR transport other than specified in the Test Goals
  • Network Slicing
  • Flex Algo
  • Classful Transport, BGP-CT, SSR
  • BGP-PIC
  • Management and Automation
  • Chassis-based High Availability (as applicable)
  • End-to-End Timing and Synchronization Distribution: Synchronous Ethernet, IEEE1588v2
  • SLA Monitoring: RFC 2544, Y.1564, TWAMP, Active Assurance
  • Telemetry