Switch firmware versions MS 18.1.5.1 changelog
Important notes
- This firmware release only includes updates for MS150 switches. All other MS switches on MS 18.1.5.1 will run firmware identical to MS 18.1.3.1.
New feature highlights
- Group Policy ACL on MS130 & MS150
- Maximum MAC support in MAC Allowlists
- 802.1x limited access mode with pre-auth GPACL
- Local Status Page connectivity diagnostics enhancements
- Layer 2 multicast live tool
- Traffic Mirroring: RSPAN & VLAN Based SPAN
Fixed issues
Ms150 fixed issues
- Resolved an issue that resulted in some MS150 switches setting a port into a discarding state after a stack member reboot
- Fixed a bug that caused some clients to experience reduced upload speeds while connected to an MS150 switch that was connected to an MX68 gateway
- Fixed a bug that sometimes caused MS150 switches in stack configurations to experience unicast traffic floods
- Resolved an issue that sometimes caused MS150 switches in stack configurations to fail to learn the default gateway’s correct MAC address, which resulted in packet loss for clients on those VLANs
Known issues
General known issues
- MS130 and MS150 switches may not properly display IPv6 RA packets in dashboard packet captures
- In rare circumstances switches may experience uplink instability when IPv6 link-local addresses are enabled. If this issue is encountered it can be resolved by enabling IPv6 RA Guard to block ICMPv6 neighbor discovery messages.
- MR access points may be incorrectly assigned to the Default profile instead of the preconfigured Access Point profile when initially connected to a switch port that uses Smartport Automation
- Some clients may fail to authenticate and resolve DHCP in voice VLANs
Ms120 known issues
- Switches may fail to provide PoE power to legacy access points (always present)
- Cable tests may report incorrect cable lengths
Ms130 known issues
- MS130X mGig ports may fail to establish a link when both sides are forced to 100 Mbps full-duplex. If either side of the connection uses auto-negotiation the link will be established normally
- Switches may incorrectly remove or update SGT tags when no policy or VLAN mapping is defined. Until a firmware fix is available, correct SGT tags can be preserved by defining a policy for the SGT group in Adaptive Policies, and binding the SGT group to a VLAN using VLAN profiles.
Ms150 known issues
- When a stacking cable is disconnected from MS150 switches in stack configurations the disconnected port will incorrectly continue to be marked as connected while the still-connected stacking port will incorrectly be marked as disconnected
- MS150 switches may intermittently negotiate USB-C Ethernet adapters at 10 Mbps half-duplex instead of the expected speed for the switchport, requiring a physical reseat to correct the issue.
- In some circumstances MS150 switches in stack configurations may fail to blocking redundant links, resulting in looped packets
Ms350x known issues
- Switches may experience an unexpected reboot (present since MS 15)
Ms355 known issues
- Switches in stack configuration may experience some ports failing to reconnect after a firmware upgrade
Ms410 known issues
- Some MS410 switches may encounter alerts for fan failures that will eventually self-resolve
Ms425 known issues
- In rare circumstances MS425 switches may encounter a software crash that results in a reboot
- In rare circumstances MS425 switches in stack configurations may encounter a software crash that results in a reboot
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