Beta Enterprise Campus Switch Aggregation

Enterprise Campus Switch Aggregation 2.1.19

https://community.ui.com/releases/Enterprise-Campus-Switch-Aggregation-2-1-19/a70609da-f8a3-4983-9478-7707d4179ebd

Improvements

• Improved device stability
• Improved link stability.
• Improved DHCP, STP, and SNMP stability.
• Improved DHCP Snooping performance.
• Improved DHCP and IGMP Snooping resiliency.
• Improved the uplink port reporting resiliency.
• Improved the L3 routing resiliency in an MC-LAG environment.

Bugfixes

• Fixed an issue where a Target Device could lose network connectivity when an MC-LAG member was restarted.
• Fixed an issue where restricted MAC didn't work correctly.
• Fixed the inability to SSH into the switch in rare cases.
• Fixed network loops when removing MC-LAG configurations.
• Fixed an issue where DHCP packets were incorrectly forwarded.
• Fixed an issue where IGMP Snooping Querier election doesn't work correctly.
• Fixed inconsistent MAC address of L3 networks.
• Fixed missing default route when configuring a static IP.
• Fixed memory leaks caused by DHCP Snooping and Link Detection.
• Fixed an issue where an incorrect default route was added after adding a new L3 Network.

Download links

ECS-Aggregation | md5sum | sha256sum

Enterprise Campus Switch Aggregation 3.0.0

https://community.ui.com/releases/Enterprise-Campus-Switch-Aggregation-3-0-0/39806a04-8313-4477-933c-e2e67db4ff27

Improvements

• Added support for the IGMP Snooping options, Forward Unknown Multicast Traffic to Multicast Router Ports, and Control Flood Known Protocols.
• Improved link-up reliability for 40G/100G optics and DACs.

Bugfixes

• Fixed MAC syncing, peer stability, failover behavior, and crash conditions in MC-LAG environments.
• Fixed multicast traffic drop issues and improved compatibility with VRRP and unknown multicast scenarios.
• Fixed STP misbehavior (e.g., false port blocking) especially in redundant link or MC-LAG topologies.
• Fixed memory leaks and system crashes under load.

Download links

ECS-Aggregation | md5sum | sha256sum

Enterprise Campus Switch Aggregation 3.0.2

https://community.ui.com/releases/Enterprise-Campus-Switch-Aggregation-3-0-2/f1960de3-267d-4373-8738-3bc55c22340f

Improvements

• Improved SFP speed detection on LAG ports.
• Improved SFP speed detection to enable faster link establishment.
• Improved firmware update stability.
• Improved overall configuration time.
• Improved CPU usage efficiency in topologies with a high MAC address count.

Bugfixes

• Fixed an issue where unknown multicast traffic was incorrectly forwarded to all VLAN members.
• Fixed MAC table synchronization issues in MC-LAG topologies.
• Fixed an issue where FDB entries could not be removed during MC-LAG configuration removal.
• Fixed a crash in the MC-LAG sync daemon when the peer switch disconnected.
• Fixed an issue preventing MC-LAG peer role switchover when the active peer went down.
• Fixed issues with clearing MAC table entries in MC-LAG topologies.
• Fixed a traffic storm issue triggered by the MC-LAG Target Device link configuration.
• Fixed port flapping when manual speed settings were applied to MC-LAG member ports.
• Fixed incorrect VLAN membership assignments for LAG member ports.
• Fixed inconsistent port negotiation configurations when using manual speed settings.
• Fixed port configuration errors during LAG configuration removal.
• Fixed invalid port state and speed reporting when operational status transitioned to "up."
• Fixed empty syslog entries caused by log rotation failures.
• Fixed an issue where SNMP data was not updated after VLAN removal.
• Fixed an issue where IGMP Snooping did not function correctly in MC-LAG topologies.
• Fixed an issue where Dante subscriptions were not processed correctly.

Download links

ECS-Aggregation | md5sum | sha256sum

Enterprise Campus Switch Aggregation 3.0.8

https://community.ui.com/releases/Enterprise-Campus-Switch-Aggregation-3-0-8/4564fd7d-6202-45fc-a75e-16ef72e593fb

Overview

Enterprise Campus Switch Aggregation 3.0.8 introduces the third milestone of a foundational stabilization effort for Enterprise Campus Switching Aggregation, with a focus on MC-LAG correctness, multicast behavior, and predictable failover under load.

This build is intended for controlled validation environments. The notes below outline current operational considerations to ensure stable deployments while final convergence behavior is being tightened.

MC-LAG topology

• Manual mrouter port configuration is not supported on MC-LAG; rely on automatic election.
• Short traffic interruptions may occur during MC-LAG failover while convergence completes.
• In large-scale deployments or during high-rate MAC moves, MC-LAG synchronization and link convergence may take longer.

IGMP / Multicast behavior

• VLAN router migrations require IGMP Snooping to be temporarily disabled.
• Untagged multicast clients directly connected to ECS Aggregation ports will receive tagged group-specific queries. Ensure multicast clients are enabled to process tagged traffic.
• Multicast traffic is not forwarded over the peer link; network design must take this into consideration

These behaviors will be incrementally resolved in subsequent EA releases as convergence logic is finalized.

Improvements

• Added support for DHCP Option 12 (hostname) in ECS DHCP client communication.
• Added expanded SFP transceiver compatibility with improved speed detection.
• Improved database performance and reliability.
• Improved detection time for port state changes.
• Improved MAC entry synchronization between MC-LAG peers.
• Improved STP auto-edge port configuration stability.
• Improved 25G SFP transceiver compatibility with FEC-none auto-detection support.
• Improved MC-LAG session robustness and recovery behavior during failure scenarios.
• Improved MC-LAG synchronization of IGMP queries and reports across MC-LAG peers.
• Improved MC-LAG peer-link stability under sustained high-load traffic conditions.
• Improved IGMP querier election behavior in MC-LAG topologies.
• Improved resiliency of IGMP Snooping during topology and role changes.
• Improved forwarding behavior for unknown multicast traffic toward mrouter ports.
• Improved overall system stability and resource utilization.
• Improved service stability in MC-LAG setups.

Bugfixes

• Fixed the MC-LAG standby node going offline when changing peer link members.
• Fixed FDB entries not synchronizing after MC-LAG daemon recovery.
• Fixed STP port flapping and dual-speaker issues in certain topologies.
• Fixed STP admin-edge configuration not being cleaned up when removing an MC-LAG target.
• Fixed STP state not being properly restored when a port is removed from a LAG.
• Fixed incorrect reporting of down ports as blocked by STP.
• Fixed STP errors when deleting an interface while processing STP configuration changes.
• Fixed the switch learning MAC addresses from STP, LACP, and LLDP protocol frames.
• Fixed VLAN removal failing when multicast entries existed.
• Fixed multicast router port desynchronization.
• Fixed unexpected multicast packet forwarding or dropping during network reconvergence.
• Fixed multicast static entries not updating when VLAN membership changes.
• Fixed DHCP snooping packet pool exhaustion under heavy traffic.
• Fixed traffic storm occurring when reconfiguring LAG members.
• Fixed DHCP guarding behavior.
• Fixed MC-LAG update failures during MAC creation operations.
• Fixed stale VLAN entries persisting after MC-LAG removal.
• Fixed multicast synchronization instability in MC-LAG environments with a high number of targets.
• Fixed buffer size validation issues impacting isolation rule creation.
• Fixed non-RFC-compliant handling of group-specific IGMP queries by the elected querier.
• Fixed IGMP queries received on STP-blocked ports being incorrectly processed or flooded.
• Fixed incorrect mrouter port designation on STP-blocked ports for non-root ECS Aggregation devices.
• Fixed missing cleanup of static mrouter ports when configuration is removed.
• Fixed excessive IGMP report traffic on mrouter ports during STP-blocked states.
• Fixed improper IGMP state cleanup when removing MC-LAG targets.
• Fixed the incorrect display of outgoing interfaces for reserved multicast addresses.
• Fixed forwarding issues with reserved multicast traffic over MC-LAG peer links.
• Fixed multicast traffic interruption when a group leave event occurs on a different port.
• Fixed high CPU utilization after disabling MC-LAG following prior enablement.
• Fixed DHCP Snooping forwarding behavior when DHCP guard rules are enabled.
• Fixed MC-LAG FDB synchronization issues when moving targets to orphan ports.
• Fixed a memory leak when re-configuring MC-LAG.
• Fixed MAC table synchronization issues when creating or deleting L3 networks.
• Fixed an issue where the DHCP Relay service failed to start af a reboot.
• Fixed incorrect STP port cost assignment for LAGs with two 10G members.

Download links

ECS-Aggregation | md5sum | sha256sum