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DCS, 7.6 Technical Reference, idle timeout, signal strength, Configuration > Wireless > DCS

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Chapter 7 Wireless Connections are kicked based on either idle timeout or signal strength. The NWA/WAC first looks to see which devices have been idle the longest, then starts kicking them in order of highest idle time. If no connections are idle, the next criteria the NWA/WAC analyzes is signal strength. Devices with the weakest signal strength are kicked first. 7.5 DCS Use this screen to configure dynamic radio channel selection. Click Configuration > Wireless > DCS to access this screen. Figure 57 Configuration > Wireless > DCS Each field is described in the following table. Table 41 Configuration > Wireless > DCS LABEL DESCRIPTION Select Now Click this to have the NWA/WAC scan for and select an available channel immediately. Apply Click Apply to save your changes back to the NWA/WAC. Reset Click Reset to return the screen to its last-saved settings. 7.6 Technical Reference The following section contains additional technical information about the features described in this chapter. Dynamic Channel Selection When numerous APs broadcast within a given area, they introduce the possibility of heightened radio interference, especially if some or all of them are broadcasting on the same radio channel. If the interference becomes too great, then the network administrator must open his AP configuration options and manually change the channel to one that no other AP is using (or at least a channel that has a lower level of interference) in order to give the connected stations a minimum degree of interference. Dynamic channel selection frees the network administrator from this task by letting the AP do it automatically. The AP can scan the area around it looking for the channel with the least amount of interference. In the 2.4 GHz spectrum, each channel from 1 to 13 is broken up into discrete 22 MHz segments that are spaced 5 MHz apart. Channel 1 is centered on 2.412 GHz while channel 13 is centered on 2.472 GHz. NWA / WAC Series User's Guide 94

Section	Page
NWA/WAC Series	1
Document Conventions	3
Contents Overview	4
Table of Contents	5
User’s Guide	12
Introduction	13
1.1 Overview	13
1.1.1 Management Mode	17
1.1.2 MBSSID	18
1.1.3 Dual-Radio	19
1.1.4 Root AP	19
1.1.5 Repeater	20
1.2 Ways to Manage the NWA/WAC	21
1.3 Good Habits for Managing the NWA/WAC	22
1.4 Hardware Connections	22
1.5 NWA5301-NJ Hardware	22
1.5.1 110 Punch-Down Block	22
1.5.2 Phone Port	24
1.5.3 Console Port	24
1.6 LEDs	25
1.6.1 WAC6502D-E, WAC6502D-S, and WAC6503D-S	25
1.6.2 NWA1123-AC PRO and WAC6103D-I	27
1.6.3 NWA5301-NJ	29
1.6.4 NWA1123-ACv2, NWA5121-N, NWA5121-NI, NWA5123-AC and NWA5123-NI	30
1.6.5 WAC5302D-S	31
1.6.6 NWA1123-AC HD, NWA5123-AC HD and WAC6303D-S	32
1.7 Starting and Stopping the NWA/WAC	33
The Web Configurator	35
2.1 Overview	35
2.2 Accessing the Web Configurator	35
2.3 Navigating the Web Configurator	36
2.3.1 Title Bar	37
2.3.2 Navigation Panel	40
2.3.3 Warning Messages	43
2.3.4 Tables and Lists	43
Setup Wizard	47
3.1 Accessing the Wizard	47
3.2 Using the Wizard	47
3.2.1 Country Code	47
3.2.2 Time Zone	48
3.2.3 Uplink	48
3.2.4 Radio	49
3.2.5 SSID	50
3.2.6 Summary	52
Technical Reference	53
Dashboard	54
4.1 Overview	54
4.1.1 What You Can Do in this Chapter	54
4.2 Dashboard	54
4.2.1 CPU Usage	58
4.2.2 Memory Usage	59
Monitor	60
5.1 Overview	60
5.1.1 What You Can Do in this Chapter	60
5.2 What You Need to Know	60
5.3 Network Status	61
5.3.1 Port Statistics Graph	63
5.4 Radio List	64
5.4.1 AP Mode Radio Information	65
5.5 Station List	67
5.6 WDS Link Info	68
5.7 Detected Device	69
5.8 View Log	72
Network	75
6.1 Overview	75
6.1.1 Management Mode	75
6.1.2 What You Can Do in this Chapter	77
6.2 IP Setting	78
6.3 VLAN	79
6.4 AC (AP Controller) Discovery	82
Wireless	84
7.1 Overview	84
7.1.1 What You Can Do in this Chapter	84
7.1.2 What You Need to Know	85
7.2 AP Management	85
7.3 Rogue AP	88
7.3.1 Add/Edit Rogue/Friendly List	90
7.4 Load Balancing	91
7.4.1 Disassociating and Delaying Connections	93
7.5 DCS	94
7.6 Technical Reference	94
Bluetooth	97
8.1 Overview	97
8.1.1 What You Need To Know	97
8.2 Bluetooth Advertising Settings	97
8.2.1 Edit Advertising Settings	98
User	100
9.1 Overview	100
9.1.1 What You Can Do in this Chapter	100
9.1.2 What You Need To Know	100
9.2 User Summary	101
9.2.1 Add/Edit User	101
9.3 Setting	103
9.3.1 Edit User Authentication Timeout Settings	105
AP Profile	107
10.1 Overview	107
10.1.1 What You Can Do in this Chapter	107
10.1.2 What You Need To Know	107
10.2 Radio	108
10.2.1 Add/Edit Radio Profile	109
10.3 SSID	114
10.3.1 SSID List	114
10.3.2 Add/Edit SSID Profile	115
10.4 Security List	118
10.4.1 Add/Edit Security Profile	118
10.5 MAC Filter List	121
10.5.1 Add/Edit MAC Filter Profile	122
10.6 Layer-2 Isolation List	123
10.6.1 Add/Edit Layer-2 Isolation Profile	124
MON Profile	126
11.1 Overview	126
11.1.1 What You Can Do in this Chapter	126
11.2 MON Profile	126
11.2.1 Add/Edit MON Profile	127
11.3 Technical Reference	128
WDS Profile	130
12.1 Overview	130
12.1.1 What You Can Do in this Chapter	130
12.2 WDS Profile	130
12.2.1 Add/Edit WDS Profile	131
Certificates	132
13.1 Overview	132
13.1.1 What You Can Do in this Chapter	132
13.1.2 What You Need to Know	132
13.1.3 Verifying a Certificate	134
13.2 My Certificates	135
13.2.1 Add My Certificates	136
13.2.2 Edit My Certificates	138
13.2.3 Import Certificates	141
13.3 Trusted Certificates	142
13.3.1 Edit Trusted Certificates	143
13.3.2 Import Trusted Certificates	146
13.4 Technical Reference	147
System	148
14.1 Overview	148
14.1.1 What You Can Do in this Chapter	148
14.2 Host Name	148
14.3 Date and Time	149
14.3.1 Pre-defined NTP Time Servers List	152
14.3.2 Time Server Synchronization	152
14.4 WWW Overview	153
14.4.1 Service Access Limitations	153
14.4.2 System Timeout	153
14.4.3 HTTPS	154
14.4.4 Configuring WWW Service Control	154
14.4.5 HTTPS Example	155
14.5 SSH	163
14.5.1 How SSH Works	163
14.5.2 SSH Implementation on the NWA/WAC	164
14.5.3 Requirements for Using SSH	165
14.5.4 Configuring SSH	165
14.5.5 Examples of Secure Telnet Using SSH	165
14.6 Telnet	167
14.7 FTP	167
14.8 SNMP	168
14.8.1 Supported MIBs	169
14.8.2 SNMP Traps	170
14.8.3 Configuring SNMP	170
14.8.4 Adding or Editing an SNMPv3 User Profile	171
Log and Report	173
15.1 Overview	173
15.1.1 What You Can Do In this Chapter	173
15.2 Email Daily Report	173
15.3 Log Setting	175
15.3.1 Log Setting Screen	176
15.3.2 Edit System Log Settings	177
15.3.3 Edit Remote Server	181
15.3.4 Active Log Summary	182
File Manager	185
16.1 Overview	185
16.1.1 What You Can Do in this Chapter	185
16.1.2 What you Need to Know	185
16.2 Configuration File	186
16.2.1 Example of Configuration File Download Using FTP	190
16.3 Firmware Package	191
16.3.1 Example of Firmware Upload Using FTP	192
16.4 Shell Script	193
Diagnostics	196
17.1 Overview	196
17.1.1 What You Can Do in this Chapter	196
17.2 Diagnostics	196
LEDs	198
18.1 Overview	198
18.1.1 What You Can Do in this Chapter	198
18.2 Suppression Screen	198
18.3 Locator Screen	199
Antenna Switch	200
19.1 Overview	200
19.1.1 What You Need To Know	200
19.2 Antenna Switch Screen	200
Reboot	202
20.1 Overview	202
20.1.1 What You Need To Know	202
20.2 Reboot	202
Shutdown	203
21.1 Overview	203
21.1.1 What You Need To Know	203
21.2 Shutdown	203
Troubleshooting	204
22.1 Overview	204
22.2 Power, Hardware Connections, and LED	204
22.3 NWA/WAC Access and Login	205
22.4 Internet Access	206
22.5 Wireless Connections	207
22.6 Resetting the NWA/WAC	212
22.7 Getting More Troubleshooting Help	213
Importing Certificates	214
IPv6	227
Customer Support	235
Legal Information	241

Match case Limit results 1 per page

Chapter 7 Wireless

NWA / WAC Series User’s Guide

Connections are kicked based on either

idle timeout

signal strength

. The NWA/WAC first looks to see

which devices have been idle the longest, then starts kicking them in order of highest idle time. If no

connections are idle, the next criteria the NWA/WAC analyzes is signal strength. Devices with the

weakest signal strength are kicked first.

7.5

DCS

Use this screen to configure dynamic radio channel selection. Click

Configuration > Wireless > DCS

access this screen.

Figure 57

Configuration > Wireless > DCS

Each field is described in the following table.

7.6

Technical Reference

The following section contains additional technical information about the features described in this

chapter.

Dynamic Channel Selection

When numerous APs broadcast within a given area, they introduce the possibility of heightened radio

interference, especially if some or all of them are broadcasting on the same radio channel. If the

interference becomes too great, then the network administrator must open his AP configuration options

and manually change the channel to one that no other AP is using (or at least a channel that has a

lower level of interference) in order to give the connected stations a minimum degree of interference.

Dynamic channel selection frees the network administrator from this task by letting the AP do it

automatically. The AP can scan the area around it looking for the channel with the least amount of

interference.

In the 2.4 GHz spectrum, each channel from 1 to 13 is broken up into discrete 22 MHz segments that are

spaced 5 MHz apart. Channel 1 is centered on 2.412 GHz while channel 13 is centered on 2.472 GHz.

Table 41

Configuration > Wireless > DCS

LABEL

DESCRIPTION

Select Now

Click this to have the NWA/WAC scan for and select an available channel immediately.

Apply

Click

Apply

to save your changes back to the NWA/WAC.

Reset

Click

Reset

to return the screen to its last-saved settings.