Oct 10, 2017

Extreme Wireless adds 6Ghz Mid-band in FCC

FCC is filing for unlicensed spectrum allocation in the 6GHz band. Extreme Networks has signed into this filising. Really expect the new Extreme wireless products for 6GHz!

The article I referenced:
http://www.fiercewireless.com/wireless/apple-facebook-and-more-lobby-for-expanded-use-6-ghz-band-for-unlicensed-use

While saying they’ll play nice with incumbents, a diverse set of players—Apple, Cisco, Google, Facebook, Broadcom, Intel, Qualcomm, Hewlett-Packard Enterprise and more are among them—is pushing the FCC to set aside more spectrum for unlicensed users in the 6 GHz band.

About 30 entities signed the filing (PDF), all agreeing that Part 15 access to the 5925-7125 MHz band (aka the 6 GHz band) is essential in meeting demand for the next generation of wireless broadband services. The companies span the consumer equipment, internet media, software, cloud, semiconductor, enterprise, service provider and rural connectivity industries. Their proposal is in response to the FCC’s call for comments on expanding flexible use in mid-band spectrum between 3.7 and 24 GHz.

Specifically, they’re proposing that the FCC consider establishing multiple 6 GHz sub-bands, ensuring that technical rules and interference protections for each segment of the band are appropriate to incumbents operating in the frequencies. Taken together, the four sub-bands can be referred to as one 6 GHz band. 

The four sub-bands proposed are:

U-NII-5: 5925-6425 MHz
U-NII-6: 6425-6525 MHz
U-NII-7: 6525-6875 MHz
U-NII-8: 6875-7125 MHz
Proximity, proximity

One of the big reasons for the 6 GHz fanfare is its proximity. The 5.925-7.125 GHz band is adjacent to current unlicensed U-NII bands, meaning existing technologies designed for the 5 GHz band can be rapidly deployed. The technology manufacturers signing onto the proposal say they are committed to delivering 6 GHz-capable products and services to the market in a timely manner.

Another reason: The IEEE recently voted to extend coverage to the 6 GHz band, so the latest 802.11ax technology will be extended to gigabit-enabled channels, which is key as everyone sets their sights on gigabit speeds.

Broadcom believes this is the best band for the commission to focus on for the expansion of unlicensed, according to Christopher Szymanski, director, Product Marketing and Government Affairs at Broadcom.

“We’re under a spectrum crunch. Wi-Fi has been wildly successful,” he said, citing various reports showing roughly 80% of mobile traffic from cell phones goes over Wi-Fi. Yet there hasn’t been a corresponding increase in the airwaves devoted to Wi-Fi. “We think it’s very important that the commission move quickly. We’re not looking to displace, we’re looking to protect.”

RELATED: FCC eyes midband spectrum between 3.7 and 24 GHz

Chuck Lukaszewski, vice president, Wireless Strategy at Hewlett Packard Enterprise (HPE), said the band is active with a lot of other users and the industry will need to show that it can safely coexist in that environment. But given Wi-Fi’s track record, that should not be a problem.

“We have been working successfully for almost 20 years with incumbents, both federal and non-federal, and co-existing between unlicensed technologies, and the industry has shown in the 2.4 GHz band, which is not part of this proceeding, that Wi-Fi can coexist just fine with Bluetooth, ZigBee and all the other unlicensed technologies.  

“I think our track record is such and the Part 15 rules are such that we’re going to conclusively demonstrate that we can very safely operate at low power levels that Wi-Fi employs and allow more intensive sharing of the band while fully protecting those incumbents,” Lukaszewski told FierceWirelessTech.

Here’s a list of the entities backing the 6 GHz proposal: All Points Broadband, Amplex Electric dba Amplex Internet, Apple, Blaze Broadband, Broadcom, Cambium Networks, Cisco Systems, Computer Office Solutions dba Snappy Internet, Cypress Semiconductor Corporation, Dell, Electronic Corporate Pages dba Western Broadband, Extreme Networks, Facebook, Google, Hewlett-Packard Enterprise, HP, Intel, Interwest Management Services dba Fire2Wire, JAB Wireless dba Rise Broadband, 23 Joink, MediaTek, MetaLINK Technologies, Microsoft, New Wave Net, Pixius Communications, Qualcomm, Ruckus, Sony Electronics, the Wireless Internet Service Provider Association and Wisper ISP.

While not listed among the signatories, the Wi-Fi Alliance made similar points, saying the 6 GHz band is ideal to help meet demands for Wi-Fi. The group noted that recent NTIA action foreclosing unlicensed operations in the 5.35-5.47 GHz (U-NII-2B) band significantly disrupted Wi-Fi industry plans to accommodate growing demand in the mid-band spectrum.

T-Mobile, Ericsson suggest licensed mobile uses 

While wireless operators and their vendors directed much of their commentary in the mid-band proceeding to the 3.7-4.2 GHz band, they also weighed in on the 5.925-6.425 and the 6.425-7.125 GHz bands.

T-Mobile says the commission should consider not only the 3.6-4.2 GHz band for wireless broadband, but also the 6.425-7.125 GHz band as well. “T-Mobile urges the Commission to consider making some or all of this band available for licensed mobile broadband use,” the operator said in its filing.

Ericsson also suggested the commission take a close look at the 6.425-7.125 GHz band for mobile services, saying the band could serve as a great complement to the millimeter wave band for use cases in urban core and densely populated areas and beyond. By example, the company said the band could be particularly useful for applications such as automotive/connected car.

Taking a different tact, Verizon said that with regards to the 5.925-6.425 GHz band, which it noted serves as the corollary Earth-to-space uplink band associated with the 3.7-4.2 GHz band, Verizon itself has several thousand microwave licenses in the band and believes it’s critical that, whatever path the commission chooses, it must protect incumbent users.

However, Verizon said the proximity of the 5.925-6.425 GHz band to the 5.15-5.35 GHz and 5.47-5.727 GHz bands makes it particularly attractive for unlicensed use, and therefore it conditionally supports unlicensed use in the 5.925-6.425 GHz band as long as the commission adopts rules that provide adequate protections to incumbent and future microwave deployments in the band.

Feb 4, 2017

ExtremeNetworks WiNG AP 7602

ExtremeNetworks just released ExtremeWireless WiNG AP 7602 as low-priced AP for guest room. But, this AP has the rich functionality. One of them is that AP 3602 integrated Bluetooth technology supports Apple iBeacon to communicate with a loyalty app on a guest's mobile device. Using Google Eddystone, you can send advertisements directly to guests.


For more detail check the following URL
http://www.extremenetworks.com/product/wing-ap-7602/ 

Dec 4, 2016

エクストリーム・ネットワークス:Tag VLAN

Tag VLAN


スイッチ同士をTag接続して、Tagリンクを複数のVLANに所属させる
複数のスイッチを介してVLANが構築できることを確認する

ネットワーク構成



複数のVLANが所属するポートのことをTag ポートと呼びます。
複数のスイッチを介してVLANを構成する場合は、スイッチ同士がつながるポートをTagポートにします。

Untag ポートでは、一つのVLANにしか所属できません。
しかし、1個のポートに複数のVLANのデータが行う場合もあります。
その場合、そのポートをTagポートに設定します。
ポートをTagポートに設定すると、そのポートでMACフレームにVLAN情報を加えて送り出すようになります。

show commands で確認する

##### Switch-1 のコンフィグ #####
* X480-24x.14 # show vlan "Sale" 
VLAN Interface with name Sale created by user
    Admin State: Enabled     Tagging: 802.1Q Tag 100 
    Description: For Sale team PC 
    Virtual router: VR-Default
    IPv4 Forwarding: Disabled
    IPv4 MC Forwarding:  Disabled
    IPv6 Forwarding: Disabled
    IPv6 MC Forwarding:  Disabled
    IPv6:                None
    STPD:       None
    Protocol:            Match all unfiltered protocols
    Loopback:            Disabled
    NetLogin:            Disabled
    OpenFlow:            Disabled
    TRILL:               Disabled
    QosProfile:      None configured
    Egress Rate Limit Designated Port: None configured
    Flood Rate Limit QosProfile:       None configured
    Ports:   2.   (Number of active ports=0)
       Untag:      25

       Tag:        24

* X480-24x.15 # show vlan "Engineer" 
VLAN Interface with name Engineer created by user
    Admin State: Enabled     Tagging: 802.1Q Tag 200 
    Description: For Engineer team PC 
    Virtual router: VR-Default
    IPv4 Forwarding: Disabled
    IPv4 MC Forwarding:  Disabled
    IPv6 Forwarding: Disabled
    IPv6 MC Forwarding:  Disabled
    IPv6:                None
    STPD:       None
    Protocol:            Match all unfiltered protocols
    Loopback:            Disabled
    NetLogin:            Disabled
    OpenFlow:            Disabled
    TRILL:               Disabled
    QosProfile:      None configured
    Egress Rate Limit Designated Port: None configured
    Flood Rate Limit QosProfile:       None configured
    Ports:   2.   (Number of active ports=0)
       Untag:      26

       Tag:        24


* X480-24x.17 # show vlan description 
-------------------------------------------------------------------------------
Name            VID  Description                                                
-------------------------------------------------------------------------------
Default         1                                                              
Engineer        200  For Engineer team PC                                      
Mgmt            4095 Management VLAN                                           
Sale            100  For Sale team PC                                          
-------------------------------------------------------------------------------


* X480-24x.20 # show config vlan
#
# Module vlan configuration.
#
configure vlan default delete ports all
configure vr VR-Default delete ports 1-26
configure vr VR-Default add ports 1-26
configure vlan default delete ports 24-26
create vlan "Engineer"
configure vlan Engineer description "For Engineer team PC" 
configure vlan Engineer tag 200
create vlan "Sale"
configure vlan Sale description "For Sale team PC" 
configure vlan Sale tag 100
configure ports 25 description-string "Connect to PC1"
configure ports 26 description-string "Connect to PC2"
configure vlan Default add ports 1-23 untagged  
configure vlan Engineer add ports 24 tagged  
configure vlan Engineer add ports 26 untagged  
configure vlan Sale add ports 24 tagged  
configure vlan Sale add ports 25 untagged  

enable ports 24-26 


Switch -2 の設定は Switch -1 と同じでございます。