Tag: switches

Ubiquiti UniFi Firmware Release Notes: 4.0.69.10871 – 4.3.20.11298

Official Release Notes

Features

  • US-XG-6POE

Improvements

  • nanoHD/IW-HD/FlexHD/BeaconHD
  • UAP
    • [4.3.20.11298]
      • Improved isolated AP logging.
    • [4.3.13.11.253]
      • Improved tracking of DHCP state.
      • Improved guest portal stability.
      • Reduced false positives when forcing high performance devices to 5 GHz.
      • Improved fast roaming stability.
      • Re-architected static and dynamic VLAN support.
      • Improved encrypted netconsole reliability.
    • [4.0.69.10871]
      • Tweaked performance.
      • Refactored High Performance Devices.
      • Implemented ICMP RTT tracking, improved stability of tracking.
      • TCP Latency Report now shows N/A if no traffic.
      • Switched guest control to use ipset.
      • Now uses Access Point MAC Address for Fast Transition packets.
      • Added old IPW2200 cards to 2 GHz whitelist.
  • UAP-G3
    • [4.3.13.11.253]
      • Enabled VHT160 for Japan.
      • Improved throughput of VLAN-tagged SSIDs.
      • Improved crash log reporting.
  • UAP-G2/G3
    • [4.3.13.11.253]
      • Improved wireless uplink connect time and reliability.
  • UAP-G2
    • [4.3.20.11298]
      • Improved wireless uplink stability on downlink.
      • If debug logging is enabled, increase authenticator log level.
  • UAP-MTK
    • [4.3.20.11298]
      • Improved upgrade reliability.
      • Now send roam events instead of disconnect events when clients roam.
    • [4.3.13.11.253]
      • Throughput has been improved.
      • Fast roaming capability has been improved.
      • Added Refactor High Performance Device feature.
      • Disabled frequent Transmit Beamforming (TXBF) updates to increase client compatibility.
      • Improved wireless uplink background scanning.
      • Fixed connectivity issue with “high performance devices” feature in sites with many devices.
  • HW
    • [4.3.13.11.253]
      • Now detects/reports unstable processes.
      • Improved high memory usage reporting and memory reporting generally.
      • Improved status LED patterns/tempo.
      • Now allows sending anonymous analytics to developers.
    • [4.0.69.10871]
      • Allowed disabling crash and critical event reporting; now disabled by default.
      • Improved accuracy of memory use calculations.
  • USW-Pro/USW-PoE/USP-RPS
    • [4.3.13.11.253]
      • Updated LCM (Lifeycle Management?) firmware to add new status messages and fix PoE power checking.
  • USW-Flex
    • [4.3.13.11.253]
  • USW-Pro
    • [4.3.13.11.253]
      • Improvements to LCM firmware.
      • Implemented overheat and RPS power warnings.
  • USW-Gen2
    • [4.3.13.11.253]
      • Updated bootloader, now enables LEDs before booting.
  • USW
    • [4.3.20.11298]
    • [4.3.13.11.253]
      • Improved crash reporting.
      • Decreased STP load under some circumstances.
      • Improved multicast delivery.
      • Now reports port error reasons to controller.
  • ULTE
    • [4.3.13.11.253]
      • Improved on-screen graphics, updated display.
      • Added larger data overage backoff.

Bug Fixes

  • HD/SHD/XG/BaseStationXG
    • [4.0.69.10871]
      • Fixed several rare crashes.
  • HD/SHD/XG/UWB-XG
  • nanoHD/IW-HD/FlexHD/BeaconHD
  • US/L2-PoE/16-XG/XG-6PoE/USW-Pro
  • USW
    • [4.3.20.11.298]
      • Fixed DHCP flooding between isolated ports.
      • Fixed DHCP packet inter-VLAN route loop by DHCP snooping.
    • [4.0.80.10875]
      • Reverted changes from 4.0.69 that introduced DHCP issues when LACP is used.
  • US-8/16/24/48/###W/L2-PoE/16-XG/XG-6PoE/USW-Pro
    • [4.3.13.11.253]
      • Fixed regression/bugs causing DHCP issues when using LACP.
  • US-8/16/24/48/L2-PoE/16-XG/XG-6PoE
  • HW
    • [4.3.13.11.253]
      • No longer reboots if firmware update fails.
      • Fixed device disconnected after failed firmware download.
      • Fixed system log encryption memory leak.
      • Fixed slow frequency of internet ping after initial check.
    • [4.0.80.10875]
      • Limited MAC addresses from being reported when analytics are enabled.
    • [4.0.69.10871]
      • Fixed provisioning of system.analytics.status.
      • Remove HMAC-MD5 support for shell access.
  • US8-450W/USC-8
    • [4.3.13.11.253]
      • Fixed management VLAN.
  • USW-8
    • [4.3.13.11.253]
      • Fixed static IP bug after changing management VLAN.
  • USW-POE
    • [4.3.20.11.298]
      • Fixed PoE initialization issue.
      • Fixed LCM upgrading.
    • [4.3.13.11.253]
      • Fixed PoE LED issue on 16 port model after soft reboot.
      • Fixed flow control command.
  • USW-48-POE
    • [4.3.13.11.253]
      • Fixed port mapping.
  • USW-G2
    • [4.3.13.11.253]
      • Resolved issue with loopback test.
  • USW-Flex
    • [4.3.13.11.253]
      • Fixed PoE off failure when powered by 802.3af/at.
      • Fixed 802.3af reporting issue.
  • UAP-BeaconHD
    • [4.3.13.11.253]
      • Now factory resets device if wireless uplink is disabled on site.
  • UAP-AC-IW
    • [4.3.13.11.253]
      • Fixed multicast packet leaking security issue.
  • IWHD
    • [4.3.14.11.253]
      • Fixed invalid port parameters, port or cfg = NULL error when switch ports disabled.
  • UAP-PRO
    • [4.3.14.11.253]
      • Fixed wireless uplink static VLAN.
  • UAP
    • [4.3.20.11.298]
      • Fixed intermittent multicast packet loss on static VLANs.
      • Fixed memory leak in netconsole when operating as wireless downlink.
      • Fixed Gen1 PS4 connectivity issue when high performance devices enabled.
    • [4.3.14.11.253]
      • Fixed wireless uplink static VLAN.
      • Fixed reported QoS Basic Service Set (QBSS) channel utilization for 5GHz radio.
      • Fixed reported RSSI and noise floor.
      • Fixed issue with 0% Channel Utilization in QBSS Report.
      • Fixed issue when modifying High Performance Device feature.
      • Fixed multicast TX in congested 2.4GHz environment.
      • Fixed issue that caused second/third radio to intermittently not come up properly on provision.
      • Fixed DNS parsing instability.
      • Fixed stability issue when handling Dynamic Frequency Selection (DFS) events.
      • Fixed udhcpc continuous instability bug.
      • Fixed authenticator instability and crash reporting.
      • Fixed roaming notification for APs.
      • Fixed guest portal instability.
      • Fixed intermittent RADIUS COA failure.
      • Improved Fast Roaming management bridge detection.
      • Fixed memory leak when using Auto-Optimize Network or High Performance Devices.
      • Now keeps IPv6 enabled on dynamically created DVLAN interface.
      • Fixed multicast issue with DVLAN SSIDs and untagged Users.
      • Fixed configuration bug when DVLAN is disabled on SSID.
      • Fixed stability issue with ICMP tracking.
      • Fixed stability issue with WLAN schedules.
      • Fixed management VLAN bridging when using wireless uplink
      • Fixed sticky DNS latency reporting.
      • Fixed TCP latency calculation.
      • Fast Transition packets are now routed to proper bridge.
      • WEP clients are now allowed to be on VLANs.
      • Fixed a crash that could occur during Guest Control provisioning.
      • Fixed bug with Connectivity Monitor that caused it to bring down WLANs when gateway is unreachable.
      • Fixed ICMP latency stability.
      • Fixed DVLAN if management VLAN is unspecified.
      • Fixed minimum RSSI fast-apply issue.
  • UAP-G1
    • [4.3.14.11.253]
      • Improved probe response transmission.
  • UAP-G2/G3
    • [4.3.20.11.298]
      • Fixed some issues with wireless uplink connectivity.
    • [4.3.14.11.253]
      • Fixed minor Fast Roaming issue related to QBSS.
      • Added Antigua and Barbuda as countries.
      • Fixed DVLAN connectivity between clients on the same interface (introduced in 4.1.0).
      • Fixed slow memory leak when using a Dynamic VLAN SSID.
      • Fixed Activity Down stats.
  • UAP-G3
    • [4.3.20.11.298]
      • Fixed intermittent inability to connect with Gen3 UAP as downlink.
    • [4.3.14.11.253]
      • Adjusted environmental thresholds.
      • Fixed an issue with rate control handling which could trigger an assert.
  • UAP-G3/MTK
    • [4.3.14.11.253]
      • Fixed fast-roaming issues.
  • UAP-MTK
    • [4.3.20.11.298]
      • Fixed inability for WiFi to operate when proxy ARP is enabled.
      • Fixed issue when country is set to Faroe islands.
  • USP-RPS
    • [4.3.14.11.253]
      • Fixed false alert for power delivery.
      • Added initial RPS information to LCM.
  • ULTE
    • [4.3.14.11.253]
      • Added MSS clamping.
      • Fixed security issue if U-LTE had public WAN IP.
      • Fixed intermittent LTE upgrade issue.
      • Fixed support for SIM PINs.
      • Fixed DHCP client issue when guest network was enabled.

The Network

Introduction to the Network

This document outlines a number of resources for learning about networking technology. For example, there are resources on 10 GbE, switches, subnet masks and IP addressing, VLANs, OSI, firewalls, and so on.

 

Firewalls

Routers

IP Addresses

Virtual LANs

MPLS

Routers

DNS

  1. What You Need to Know About the DNS System, TechTarget.
  2. How DNS Works, dnsimple.
  3. Reverse DNS (rDNS), WhatIs.

SDN

  1. Your Next Switch: The Data Center’s Software-Defined Future, TechTarget, 2014.
  2. Jon Toigo. How to Define SDN, TechTarget.

WAN

Switches

  1. How To Buy: What IT Needs to Look for in Data Center Switches, TechTarget.
  2. How to Plan a Campus Core Switch Refresh: Basic Requirements.

Protocols