Mist AI Cloud-managed Wi-Fi

[PlAwAnSaI]

Juniper Networks เปิดให้บริการ Mist Cloud-managed Wi-Fi อย่างเป็นทางการในไทยJuniper Networks ควบรวมกิจการ Mist Systems นำ AI สู่ระบบ Wi-Fi

ผสานเทคโนโลยี AI รับประกันประสิทธิภาพ Wi-Fi
ให้บริการ Location Analytics ด้วยเทคโนโลยี Virtual Bluetooth LE
เปิดตัว Mist AP43 มาตรฐาน Wi-Fi 6www.techtalkthai.com/juniper-officially-introduces-mist-cloud-managed-wi-fi-in-thailand

• The BT11 doesn't support Wi-Fi.
  
• The AP41 require POE 802.3at (30 watts).
  
• Need to initially connect Mist AP to an access-port or a trunk port with Native VLAN set.
  
• Mist offer a GDPR tech brief.
  GDPR คืออะไร ส่งผลกระทบอย่างไร: www.techtalkthai.com/what-is-gdpr-basics
  
• Lets say have 3 SSID's in network
  Each AP41/AP22 has a single MAC address embedded in the physical sticker and it is expected they are unique but sharing the first 3 nibbles (5b:5c:35:xx:yy:zz) in Mist's case. Those 3 Nibbles are known as the OUI which Mist owns.
  Lets say Mist has a single OUI
  With the information wouldn't expect any device connected to network to report they are connected to the AP's MAC address.
  So a client is never connected to the MAC on the sticker, would be connected to a BSSID.
  
• The BSSID wouldn't be the same whether connected to 2.4 or 5Ghz.
  Both the 2.4 and 5Ghz radio's have their own BSSID's
  
• If only have a single Mist AP41 to connect to, can expect BSSID to be the same everyday and share the same OUI.
  Each radio in an AP has a base BSSID based of the AP MAC OUI (Mist assigned address space) and as more SSID's are added they are assigned sequential BSSID's based off the 1st. For example my home AP (viewed through the UI) says 2.4 BSSID 5c:5b:35:50:40:c0 - cf where c0 is the last nibble of the 1st SSID (or WLAN) and counts up to the 16 supported (cf) possible SSID's if chose to assign 16 WLAN's. So this is essentially covering 16 unique MAC address (per band).
  
• Single AP41 has only one WLAN supporting both 2.4 and 5Ghz. 1 BSSID's connected device will show.
  'Connected' means the client has chosen the proper band. So it will see the BSSID it connected to. Now pre-connection it would see 2 BSSID's and use their reported RSSI (Signal Strength) and perhaps other factors to decide which to connect to. Remember it is always the clients choice on how to connect (based on what is being offered in the Probes)
  
• When think ESSID could also say SSID.
  An extended basic service set (ESS) consists of all of the BSSs in the network. For all practical purposes, the ESSID identifies the same network as the SSID does. The term SSID is used most often.
  
• 4x4:3 means 4 transmitters, 4 receivers and 3 spatial streams
  Spatial stream is the number of devices an AP can communicate with at the same time. Remember 802.11 is a 1/2 (half) duplex protocol.
  
• OFDMA is primarily focused on efficiency and making the high density experience better. Besides just being a better protocol, there are other things in 802.11ax, take BSS coloring for example: trying to handle the 'network next door' problem. While 802.11n and AC Wave1 and Wave2 were all more focused on speed and range.
  
• WiFi is said to be a 'polite protocol', meaning if listened and heard a current transmission, would back off before even tested the medium again to try and transmit.
  Back off is exponential which is why trying to get 'data sheet' numbers in a real life scenario really isn't possible. If the devices start stepping on each other, the aggregate throughput falls quickly.
  
• Association > Authentication > DHCP > ARP Default Gateway > DNS
  These are the WiFi State Machine steps a client needs to successfully go through to be truly 'connected'.
  
• WiFi client has received a DHCP IP address of 192.168.0.6. Browser won't work when try and go to 'google.com'. Can ping gateway 192.168.0.1. Can ping google 8.8.8.8.
  This sounds like a bad DNS server is configured. Domain Name Servers (DNS) are the Internet's equivalent of a phone book. They maintain a directory of domain names and translate them to Internet Protocol (IP) addresses. This is necessary because, although domain names are easy for people to remember, computers or machines, access websites based on IP addresses.
  
• Unique of the UNI-1 and UNI-2 channels in 5Ghz are the DFS channels that can be impacted by local weather radar (or false radar positives).
  
• The video content state that do need a predictive design.
  This video contains a lot of 'tribal knowledge' Mist has learned from the largest customers on the planet to thousands of 5 AP retail stores. This is one video would take notes on as Mist is very explicit on what Mist has learned, but only offering their suggestions.
  
• Maybe don't need a post installation validation site survey.
  The Mist Coverage SLE metric has become their 'goto' source of post install truth. If skipped a site survey for design the Coverage SLE will show where missed, but pulling cables at that point might be a problem. Mist is telling about what tools they offer and how some of their toughest customers are deploying Mist. Only know own environment and please merge their tools with own experience to make the best decision.
  
• Environments always suggest to do a predictive site survey:
  1. Complicated Enterprise with specific device requirements
  2. Higher Ed with large auditorium classrooms
  3. Distribution Centers
  4. Warehouses
  5. Hospitals
  This is based on Mist experience, not an absolute list. The small retail store with 2,000 stores, might do a predictive survey on 1 or 2 and they cookie cutter the rest and rely on the Coverage SLE to keep Mist honest.
  
• 'Good SSID' using 5Ghz and a 'Bad SSID' using 2.4Ghz.
  2.4Ghz only clients can't hear the probes in 5Ghz so they won't even know the other exists. With so many modern devices 5Ghz capable Mist really recommend give this a try.
  
• Wired Visibility new functionality will work with any switch using LLDP.
  
• mist.com/go is the best way to get started with Mist.
  This site provides all the information need to get started!
  
• BLE Engagement and Asset Visibility each does require their own software license.
  
• Ceiling tile/rail, Open ceiling (hanging 5/8 rod), and Drywall Ceiling are type of brackets supported for mounting Mist AP's.
  Installers are very creative and have used the Mist basic brackets (Ceiling tile or Drywall) with junction boxes and other options. If at any point plan to use BLE all units need to be hung from something (not mounted on a wall).
  
• The Mist AI Mobile App makes it very easy to deploy, verify and troubleshoot a site.
  
• A standard customer won't see WEP as a security option.
  WEP is insecure and is only provided to customers who still use old devices that require it and they accept the risks.
  
• A Single AP can be upgraded or a Site Configuration policy can be set.
  
• With Mist can have Multiple unique PSK keys that everyone has to know be used for the same SSID.
  
• When a change is made to the SSID schedule the Radios will restart which will impact connected users. This is a very fast process and not a reboot.
  
• If click nothing, by Default the WLAN will output as tagged or untagged traffic though the primary Ethernet port Eth0.
  
• RRM (Radio Resource Management) can be set Both site by site or using a set of templates.

 

[PlAwAnSaI]

• Rogue AP is 'on network.'
  Be aware there are simple things that can be done to hide AP's behind a NATed Router.
  
• There could be legal implications terminating rogue clients.
  
• Org labels can be used by all sites, but labels created by a site are specific to that site.
  
• IP addresses a Mist AP will use Depends on if 'Local Status Pages' is enabled - then 1 + nVLANs, where N is the number of VLANs.
  If there are many VLAN's pulled to the site AP's then selecting the Local Status Page feature will cause all the site AP's to pull an IP address for those VLAN's. If using the internal Guest portal and it is on a tagged SSID will need an IP address on that VLAN for each of the AP's serving that SSID.
  
• Can rename multiple AP's at the same time AND giving them different names.
  
• 
  
  
  
  If click the 'Save' button will have A bad day.
  
• It isn't easy to test Webhooks.
  
• The Mist Guest Portal is very easy to use.
  
• Mist does offer a 'Fail Open' option for the external guest portal feature.
  
• Throughput is the only predictive SLE.
  
• Insights can be seen over 1 hour, 8 hours, 24 hours, 7 days time periods.
  Right now 7 days is the maximum. Can also drag the mouse over the timeline to customize window.
  
• AP Level Insights will show the channels the AP is using.
  
• Can now, choose an application and drill down what devices were using that application over a period of time. Including the amount of usage.
  This feature is interesting in the UI but might be more useful as a report either using Mist reporting or the API for customized monitoring.
  
• Can filter the Client level events want to see.
  
• Wired Packet Capture can be used to see a device roam across a site.