What’s Changed in Release 21.1R2
EVPN
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Minimum auto-recovery time reduced for duplicate MAC address detection (ACX Series, PTX Series and QFX Series)—Junos OS has changed the minimum value allowed for auto-recovery time for duplicate MAC address detection from 5 minutes to 1 minute. The auto-recovery time is the length of time that the device suppresses a duplicate MAC address. Reducing the auto-recovery time allows customers to quickly recover from a MAC address duplication state. You configure the
auto-recovery-time
option under theduplicate-mac-detection
statement at theedit routing-instances routing-instance-name protocols evpn
oredit protocols evpn
hierarchy.
General Routing
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Enhancement to the default
remnant-holdtime
(Junos OS Evolved platforms: QFX5130-32CD, and QFX5220)— Starting this release, the defaultremnant-holdtime
has been increased from 180 seconds to 300 seconds. This provides sufficient time for protocols to start and sync routes from neighbors in a scaled environment, during rpd restart. You can configureremnant-holdtime
at theedit routing-options forwarding-table
hierarchy level.See forwarding-table .]
Network Management and Monitoring
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Changes in contextEngineID for SNMPv3 INFORMS (ACX Series, PTX Series, and QFX Series)— Now the contextEngineID of SNMPv3 INFORMS is set to the local engine-id of Junos devices. In earlier releases, the contextEngineID of SNMPv3 INFORMS was set to remote engine-id.