Product Name: MES3500-24
Product Model: 4.00(AABB.4)b1_20210630
Release Date: 2020/06/30

Changes:
WAS: V4.00(AABB.4)b1_20200804
IS:  V4.00(AABB.4)b1_20210630
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1) 
[Fix]ITS 210300256# All switch(3500,,3712,3520) reboots when trying to login using correct account with tacacs server IP and invalid tacacs key configured





Product Name: MES3500-24
Product Model: 4.00(AABB.4)b1_20200804

Changes:
WAS: V4.00(AABB.4)b1_20200309
IS:  V4.00(AABB.4)b1_20200804
-----------------------------------------------------------------------------------------------
1) 
[New] Add BPDU guard
[Ticket] eITS#190300468
#Note1, After enabling this feature,If the interface receives STP packet, the port will enter the errdisable state.
#Note2, CLI example for enable bpduguard feature and set up errdisable recovery.

MES3500# configure
MES3500(config)# bpduguard
MES3500(config)# interface port-channel <port-list>
MES3500(config-interface)# bpduguard
MES3500(config-interface)# exit
MES3500(config)# errdisable recovery
MES3500(config)# errdisable recovery cause bpduguard
MES3500(config)# errdisable recovery cause bpduguard interval <30-2592000>
MES3500(config)# exit
MES3500#
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2) 
[New] Automatically disconnect the port when link-flap
[Ticket] eITS#190300470
#Note1, After enabling this feature,If the physical interface on the switch goes up and down three or more times per second, the port will enter the errdisable state.
#Note2, CLI example for enable link-flap prevention feature and set up errdisable recovery.

MES3500# configure
MES3500(config)# link-flap prevention
MES3500(config)# interface port-channel <port-list>
MES3500(config-interface)# link-flap prevention
MES3500(config-interface)# exit
MES3500(config)# errdisable recovery
MES3500(config)# errdisable recovery cause linkflap
MES3500(config)# errdisable recovery cause linkflap interval <30-2592000>
MES3500(config)# exit
MES3500#
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3) 
[Fix] LLDP SystemName column of remote devices are not shown completely
[Ticket] eITS#200500601
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4) 
[Fix] "copy running config interface port-channel X Y" command copies MVR port tagging configuration incorrectly
[Ticket] eITS#200500604
#Note, the command "copy running config interface port-channel <port> <port-list>" is only used to copy the following settings in the switch configuration file.
1) Settings under the interface port channel <port>
2) MVR setting
		
