TechPost

TechPost

Byte-Sized Articles on Juniper Solutions by Network Engineers, for Network Engineers

MX304 Deepdive

A detailed review of the latest router of the MX Series. Powered by Trio6 PFE, it offers unique form-factor and modularity, with interface spanning ...

MPC10E Deepdive

A detailed view of the MPC10E line cards used in MX240, MX480 and MX480. ...

Sizing Router Buffers - Small is the New Big

Current practices and future trends on buffers in networking chips. ...

Building Border Agnostic Architectures with Seamless MPLS

Third part of the Juniper Validated Design series on basic Mobile Backhauling, with a focus on Seamless MPLS and BGP-LU. Introduction In ...

SRv6 L3VPN Inter-AS Option-C

Layer 3 Virtual Private Network Inter-AS option using SRv6 as underlay transport on MX and ACX7000 routers. ...

Service Mapping to Colored MPLS Paths

Mapping modern and legacy services to colored MPLS paths, achieving business differentiation. Introduction People say there are no greenfield ...

EVPN E-LAN on PTX10k Platforms

We validate EVPN E-LAN on Express4-based platforms playing the role of PE. In this article, we will describe the various approaches, the configurations ...

Longest Prefix Matching in Networking Chips

Basic concepts of Forwarding Information Base (FIB), the longest prefix match (LPM) for IP forwarding, and how its implementation has evolved over ...

EVPN E-Line on PTX10k platforms

Let's test EVPN ELINE/VPWS on Express4-based platforms playing the role of PE. In this article, we will describe the various approaches, the configurations ...

PTX10001-36MR FIB Install Rate

PTX10001-36MR installs the Internet routes at more than 27,000 routes per second, and we will show you how we are testing it. Introduction ...

SRv6 SID Encoding and Transposition

JUNOS 22.3 introduced several changes in the SRv6 infrastructure, this article covers them in details. ...

Juniper Apstra Introducing a True IBNS

What a true IBN system is? How relational and graph databases are different? And why graph databases are ideal for network infrastructure? ...

VPLS Validation on ACX7000

Let's verify we can support 8,000 VPLS instances in the ACX7000 products with 640,000 MAC addresses. Introduction ...

ACX7000 L2 MAC Scale and Learning Rate

We verify ACX7000 platforms support 700,000 MAC addresses with a learning rate of 14,000 entries per second. ...

L2VPN Validation on ACX7000

ACX7000 platform is tested with 8,000 Layer2 VPN Routing-instances for 99.9% line rate traffic. ...

ACX7509 Deepdive

The first centralized platform of the ACX7000 family. Based on a modular design, it offers control plane and forwarding plane redundancy with port ...

L3VPN Validation on ACX7000

ACX7000 platform has been tested successfully with 4,000 Layer3 VPN Routing-instances with BGPv4, BGPv6, OSPF, OSPFv3, ISISv4, ISISv6, Static-v4, ...

EVPN VPWS Validation on ACX7000

Junos EVPN-VPWS feature supports 8,000 instances with 4,000 VLAN-UnAware and 4,000 VLAN-Aware Service Types on ACX7000 Platforms. ...

VPLS to EVPN-VPLS Seamless Migration on MX Routers

Techniques, configurations and best practices for migrating from legacy business services to EVPN on MX Routers. ...

EVPN MAC-VRF Validation on ACX7000

JUNOS unified way of bringing up EVPN E-LAN using mac-vrf instance type supporting 6,000 instances on ACX7000 with 642,000 MAC scale. ...

Silicon Photonics and Integrated Optics

SiPh (Silicon Photonics) is no longer SciFi (Science Fiction). Let's see where is the industry today with co-packaged optics... ...

BGP RIB Sharding

Discover how BGP RIB Sharding can help improve routing performance and scale in JUNOS. ...

PTX10001-36MR Introduction

Product manager’s description of the PTX10001-36MR router. Product characteristics, port types and supported port combinations, architecture and ...

Sampling Evolution

Are the flow caches effective to support IPFIX implementations today? What happens if we stop using them? Learn about the new IPFIX implementation ...

PTX10001-36MR L2 Circuit Scale

The PTX10001-36MR is well-known for its core, peering and DCI capabilities, but it's also a very performant L2 aggregation device. In this article, ...

SRv6 Summarization

Let's discuss the multi-domain SRv6 network together with the concept of SRv6 locator summarization. SRv6 locator summarization allows for large-scale, ...

PTX FIB Compression

Did you know the internet table can be compressed significantly? We explain how the PTX Routers are currently implementing FIB compression today. ...

Inter-domain On-demand SR-TE LSPs with BGP-LS

A standard-based approach to placing MPLS-based services with path constraints across multiple networks. ...

ACX7024 Deepdive

Everything about the new addition to the Cloud-Metro family, the ACX7024. A 1-RU router, with 360Gbps forwarding capacity. Introduction ...

Seamless MPLS LDP-Signaled with OSPF IGP Underlay

Second profile of the Juniper Validated Design series on basic Mobile Backhauling, with a focus on LDP-signalled MPLS and OSPF IGP. Introduction ...

ZR/ZR+ Coherent Optics in ACX7100-32C

How does the Juniper ACX7100-32C router handle a fully loaded 400GE ZR and 100GE ZR4, long reach, high power coherent optics configuration? ...

Tearing Down the Memory Wall

The gap between processor and memory performance and density continued to increase - this is often referred to as the "Memory Wall". ...

ACX7100 Deepdive

In this post, you’ll learn everything about the first two Juniper Cloud-Metro devices: ACX7100-32C and ACX7100-48L. ...

L3VPN over SRv6

How unicast IPv4/IPv6 within L3VPN VRFs are implemented with Segment Routing v6 (SRv6) as underlaying transport technology. ...

MX10000 LC480 Deepdive

LC480 is a 48 port 1G/10G line card supporting Business Services(L2/L3) with rich OAM features, Broadband subscriber at scale, H-QoS, high filter ...

Let’s Talk About VOQ and DNX Pipeline

To understand the life of a packet in an ACX7000 Series router, you first need to understand the idea behind Virtual Output Queues. Introduction ...

Telemetry Collector and Graphical Front End on Junos Evolved

You want to install a TIG (Telegraf, InfluxDB, Grafana) stack directly in your lab router? Most network engineers have heard of using streaming ...

Layer 3 Solution for CDN Gateway

The world of CDN gateways is usually built around L2 domains and IRB, where a switch interconnects CDN servers, hosts and the L3 gateway. We propose ...

Networking Chips vs GPUs/CPUs

Networking chips (also called network processors) started getting momentum in the mid-90s, with Juniper at the forefront of the revolution, when ...

Express 4 Filters - Foundation

This series of articles provides a guide to understanding the capabilities and operating principles behind the Filter block in the Express silicon ...

SRv6 Basics: Locator and End SIDs

SRv6 (Segment Routing version 6) is a version of segment routing based on IPv6 tunneling mechanism, rather than on MPLS (MultiProtocol Label Switching) ...

MX10000 LC9600 Deepdive

All you always wanted to know of the newest MX10k line card powered by Trio 6 PFE and optimised for 100GE and 400GE requirements. Introduction ...

JVD Mobile Backhaul Overview

Summary of the Juniper Validated Design series dedicated to 5G xHaul reference architecture (Fronthaul, Midhaul, and Backhaul network segments). ...

Introducing the Validation Series

Short introduction to the validation articles. What you should expect from these blog posts, unit testing or extracts of the Juniper Validated Designs. ...

Building the ACX7000 Series: the PFE

First article “Behind The Scene” on the building of the ACX7000 Series, starting with the heart of the router: the Packet Forwarding Engine. ...