High Availability
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Support for single-hop BFD echo-lite sessions in distributed and inline mode (MX204, MX240, MX301, MX304, MX480, MX960, MX2008, MX2010, MX2020, MX10003, MX10004, MX10008, and MX10016)—You can configure single-hop BFD
echo-litesessions in inline and distributed modes to monitor forwarding path availability for directly connected next hops. Unlike regularechosessions,echo-litesessions work even if the next-hop device is not configured for BFD. Use the following configuration command to configure BFDecho-litesessions:set routing-options static route address bfd-liveness-detection echo-lite minimum-interval interval -
Unified ISSU with enhanced mode for Layer 3 on MX10K-LC4800 and MX10K-LC4802 line cards (MX10004 and MX10008)—You can perform unified ISSU with enhanced mode for Layer 3 on MX10K-LC4800 and MX10K-LC4802 line cards. Enhanced mode is an ISSU option that prevents packet loss during the unified ISSU process.
To use unified ISSU with enhanced mode, enter the following command:
request system software in-service-upgrade image reboot verbose enhanced-mode