Switch communication not working for Cisco switches running on Cisco IOS earlier than 16.12.x on Cat 9300 Last updated Save as PDF Cause Cisco IOS version 16.2 returns duplicate SNMP Vlan entries as part of the SNMP walk, which causing MLS to incorrectly process VLAN mapping. Resolution Cisco switches need to be using version IOS 16.12 or higher.
Cisco IOS version 16.2 returns duplicate SNMP Vlan entries as part of the SNMP walk, which causing MLS to incorrectly process VLAN mapping. Resolution Cisco switches need to be using version IOS 16.12 or higher.