Juniper MX BRAS – Part 3

As you notice from previous configuration. We have to configure the unit 1 with static VLAN (800) to create only ONE SUBSCRIBER INTERFACE . However in real world scenario this not necessarily the case. we need to make MX check the incoming vlan id from DSLAM and handle the creation of both VLANS and Units that hold the PPPoE sessions. BTW, Here’s a golden rule. One Vlan per Unit!

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You can find below the interface structure in dynamic configuration. The physical interface is ae(Active Ethernet) and beneath it the auto-configure command that “instantiate” the VLAN and SVLAN from dynamic-profile

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Juniper MX BRAS – Part 2

In this post I will continue to deep dive into the Juniper MX configuration and tweak it to work as a BRAS. Please refer to my previous blog post for more information on PPP protocol Stack

Let’s start

to configure MX as a BRAS,  The Following configuration is needed on BRAS

Basics Configuration

  • Interface creation –>configuration inside dynamic profile
    • Vlan Interface
    • PPP Interface
  • PPP Handling(PAP) –>configuration inside dynamic profile
  • Creating loopback
  • Radius Authentication – – >configuration inside access-profile
  • Radius Accounting – – >configuration inside access-profile
  • Address Assignment – – >configuration inside access-profileService and speed allocation

Advanced(Optional)

  • Advanced QoS
  • Change Of Authorization
  • Captive portal/redirection configuration
  • Wholesale

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Juniper MX BRAS – Part 1

 

In last few weeks, I Spent most of my time working on Juniper MX and try to evaluate it as a BRAS. Previously I was working on Juniper E Series Broadband routers and now some of my customers need to move to the new MX especially after EOL announcement of E series platform. So let’s start

 

Part 1: Introduction To PPP Protocol

Part2: Juniper Mx BRAS Configuration

Part3: Juniper Steel-Belted Radius Configuration

Part4: Final Thoughts and wrapping up!

 

First Here’s my topology that I will work on it

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Nodes Name and Function

Node Name

Platform

PPPoE_Client Windows 7 with PPPoE Interface
PPPoE_server Juniper vMX router working as BRAS and with SM license installed on it RE14.1
AAA Juniper Steel-Belted Radius (SBR)
LDAP Any Open source LDAP , OpenLdap is OK

 

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