Junos BNG Pseudowire Headend Termination (PWHT) demo

Junos BNG Pseudowire Headend Termination (PWHT) demo Maybe it is just me, but I often find myself googling for working configuration examples, followed by searching thru my own files. Well, I was in need of an end-to-end base configuration that terminates DHCP subscriber sessions coming into the BNG over q-in-q within a pseudowire. Before I... Continue Reading →

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BGP over unnumbered interfaces, automated

BGP over unnumbered interfaces, automated Configuring BGP peering between many network devices in a datacenter can become quickly repeatitive, boring and hence open to human errors. Each link requires its own dual stack IP subnet with unique endpoints. The very same endpoint IP addresses must then be used to configure BGP peers on either side... Continue Reading →

Create your own Telemetry Sensor in Junos

Create your own Telemetry Sensor in Junos Junos offers a broad range of automation capabilities, starting from a YANG based configuration and state information base, accessible via CLI, NETCONF and REST over gRPC based JET APIs directly into various Junos daemons. Some readers might even be familiar with custom YANG, allowing operators to extend the... Continue Reading →

OpenConfig and gRPC Junos Telemetry Interface

OpenConfig and gRPC Junos Telemetry Interface Starting in Junos OS Release 16.1R3 one can request streaming telemetry data using the gRPC framework with vendor-neutral data models based on OpenConfig. Great, but what configuration is required and is there a simple client available to test and troubleshoot it? I recently faced this question myself and found... Continue Reading →

Fetch remote Junos script at startup

I was in need to fetch an operational Junos script from a URL automatically at startup. Junos has such capabilities for a long time and it is based on the idea of downloading the script while an operator configures the script in Junos via CLI: [edit] mwiget@pe1# edit system scripts op file say-hello.py [edit system... Continue Reading →

DHCP Client in Junos vMX

DHCP Client in Junos vMX This is just a quick lab note about successfully enabling DHCP client mode on the management and revenue ports fxp0 and 0/0/x on a vMX running 17.1R1. Background is a cloud deployment, where the interface IP addresses are dynamically assigned via DHCP to the interfaces of the virtual instance. lab@vMX1>... Continue Reading →

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