Multicast Flow-aware SG Timer*

What's New in Cisco IOS XE 17.15.x

Hardware Features in Cisco IOS XE 17.15.2

• There are no new hardware features in this release.

Software Features in Cisco IOS XE 17.15.2

• Multicast Flow-aware SG Timer:This feature introduces a mechanism to extend the expiry timer for newly created (S,G) mroute traffic. The ip mroute extend-timer command is introduced.
• Shutdown Fiber Ports with no SFP Inserted:This feature reduces power consumption for fiber ports with no SFPs inserted. The hw-module switch auto-off optics command is introduced.

Hardware and Software Behavior Changes in Cisco IOS XE 17.15.2

• There are no behavior changes in this release.

Caveats
Caveats describe unexpected behavior in Cisco IOS-XE releases. Caveats listed as open in a prior release are carried forward to the next release as either open or resolved.

Resolved Caveats in Cisco IOS XE 17.15.2

• CSCwk27064 :%SFF8472-3-READ_ERROR: Gi2/1/1: Error reading DOM data from transceiver
• CSCwk44740:C9200L ifInDiscards always shows as 0 even though 'input queue drops' counter is increasing on gi0/0
• CSCwk62333:Cat9200L Unexpected reload crimson db write lock held for too long
• CSCwk76574:IPSG blocks traffic when client connect active switch in stack
• CSCwk80732:Some of oid does not show output of MGMT port
• CSCwk82261:Switch dropping TCP SYN packets <random port=""> DOT1X, MAB configuration.</random>