Fixed:Traffic is not forwarded over mrouter ports.

New Features for Cisco IOS XE 17.15.2

• There are no new features for this release.

Resolved Caveats in Cisco IOS XE 17.15.2
CSCwj97078

• IE3400: Traffic is not forwarded over mrouter ports.
  CSCwk86434
• IE3100: Configuration failed to parse with a good ciscortr.cfg.
  CSCwm30681
• Device not able to ping on trunk port when vlan dot1q tag native is configured globally.
  CSCwm33057
• Slowness on ie-3100 when polling snmp OIDs.
  CSCwm47470
• Endpoints with 10Mbps speed in Half-Duplex Mode drops the connection.
  CSCwm39554
• IE3x00 crashes upon bootup on the latest internal 17.12.x and 17.9.x builds
  CSCwm55828
• Websocket connection will not establish using ida.
  CSCwm66445
• IE3x00:Device crashed after locate switch stopped from WebUI.
  CSCwm10601
• Format of sd is not clearing sdpartition.
  CSCwm83468
• After inserting 10G CU SFP, the speed is changing to 100/1000 in ESS3300.
  CSCwk86434
• IE3100: Configuration failed to parse with a good ciscortr.cfg.