Network Management and Monitoring

Ephemeral database default commit synchronize model changed to synchronous (EX2300, EX2300-MP, EX2300-C, EX2300-VC, EX3400, EX3400-VC, EX4000-8P, EX4000-12MP, EX4000-12P, EX4000-12T, EX4000-24MP, EX4000-24P, EX4000-24T, EX4000-48MP, EX4000-48P, EX4000-48T, EX4100-24MP, EX4100-24P, EX4100-24T, EX4100-48MP, EX4100-48P, EX4100-48T, EX4100-F-12P, EX4100-F-12T, EX4100-F-24P, EX4100-F-24T, EX4100-F-48P, EX4100-F-48T, EX4100-H-12MP, EX4100-H-12MP-DC, EX4100-H-24F, EX4100-H-24F-DC, EX4100-H-24MP, EX4100-H-24MP-DC, EX4300-MP, EX4300VC, EX4400-24MP, EX4400-24P, EX4400-24T, EX4400-24X, EX4400-48F, EX4400-48MP, EX4400-48MXP, EX4400-48P, EX4400-48T, EX4400-48XP, EX4600-VC, EX4650, EX4650-48Y-VC, EX9204, EX9208, EX9214, MX204, MX240, MX301, MX304, MX480, MX960, MX2008, MX2010, MX2020, MX10004, and MX10008)—We've changed the default commit synchronize model for the ephemeral database from the asynchronous model to the synchronous model. The synchronous model ensures better synchronization of ephemeral configurations across Routing Engines or Virtual Chassis members by processing commits synchronously. With this change, only the synchronous model supports synchronizing ephemeral data on devices that have graceful Routing Engine switchover (GRES) or nonstop active routing (NSR) enabled.

[See Understanding Ephemeral Database Commit Synchronize Models.]

Adaptive sFlow polling intervals and buffer management improvements (EX Series switches)— We've introduced dynamic sFlow polling interval and adaptive sampling configuration options to optimize performance and buffer management for sFlow enabled interfaces. You can adjust polling intervals based on interface counts, disable adaptive sampling, or set fixed polling intervals to maintain consistency despite interface changes. The default polling occurs every 12 seconds. If the interface count exceeds 100, intervals increase to 24 seconds. If the interface count is below 80, the intervals revert to 12 seconds. These enhancements improve efficiency in scaled environments, minimize scheduler slips, and ensure accurate network statistics.

To set a fixed polling interval and override dynamic adjustment, configure the adaptive-interval interval value option at [set protocols sflow scale-mode] hierarchy level.

To disable adaptive sampling and dynamic adjustment behaviors, use the configuration statements set protocols sflow scale-mode adaptive-interval no-adaptive-sampling and set protocols sflow scale-mode disable.

To view adaptive-sampling status and adaptive interval information, use the show sflow command.