Learn about what changed in this release for EX Series Switches in Junos OS Release 20.4R1.
Junos OS XML API and Scripting
Support for specifying the YANG modules to advertise in the NETCONF capabilities and supported schema list (ACX Series, EX Series, MX Series, PTX Series, QFX Series, and SRX Series)—You can configure devices to emit third-party, standard, and Junos OS native YANG modules in the capabilities exchange of a NETCONF session by configuring the appropriate statements at the edit system services netconf hello-message yang-module-capabilities hierarchy level. In addition, you can specify the YANG schemas that the NETCONF server should include in its list of supported schemas by configuring the appropriate statements at the edit system services netconf netconf-monitoring netconf-state-schemas hierarchy level.
The show mpls lsp extensivel and show mpls lsp detail commands display next hop gateway LSPid—When you use the show mpls lsp extensivel and show mpls lsp detail commands, you'll see next hop gateway LSPid in the output as well.
Network Management and Monitoring
Warning changed for configuration statements that correspond to
deviate not-supportednodes in YANG data models (ACX Series, EX Series, MX Series, PTX Series, QFX Series, and SRX Series)—If you configure a statement corresponding to a YANG data model node that defines the
deviate not-supportedstatement, the Junos OS configuration annotates that statement with the comment Warning: statement ignored: unsupported platform. In earlier releases, the warning is Warning: 'statement' is deprecated.
Platform and Infrastructure
Support for unicast ARP request on table entry expiration—You can configure the device to send a unicast ARP request instead of the default broadcast request when an ARP table entry is about to expire. The retry requests are unicast at intervals of 5 seconds. Without this option, the retry requests are broadcast at intervals of 800 milliseconds. This behavior reduces ARP overall broadcast traffic. It also supports the use case where access nodes are configured not to forward broadcast ARP requests toward customer CPEs for security reasons and instead translate ARP broadcasts to unicast requests. To confirm whether this is configured, you can issue the following command: show configuration system arp | grep unicast-mode-on-expire.
User Interface and Configuration
Verbose format option for exporting JSON configuration data (ACX Series, EX Series, MX Series, PTX Series, QFX Series, and SRX Series)—The Junos OS CLI exposes the verbose statement at the edit system export-format json hierarchy level. The default format for exporting configuration data in JSON changed from verbose format to ietf format starting in Junos OS Release 16.1R1. You can explicitly specify the default export format for JSON configuration data by configuring the appropriate statement at the edit system export-format json hierarchy level. Although the verbose statement is exposed in the Junos OS CLI as of the current release, you can configure this statement starting in Junos OS Release 16.1R1.