12-WLAN高可靠性配置
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当AC的上行链路出现故障时,该AC将无法提供访问外部网络的服务,而已关联的无线客户端无法感知AC上行链路的故障,因此不能自动切换接入的无线网络。通过配置WLAN上行链路检测功能,可以将AC下的AP射频状态与上行链路状态进行关联,及时关闭不能正常提供服务的射频,使无线客户端能够主动切换至其它无线网络。
上行链路检测功能的实现方式是将监测模块、Track项与WLAN上行链路检测模块进行联动。监测模块负责监测上行链路的可达性;Track模块根据监测模块的监测结果改变Track项的状态;WLAN上行链路检测模块根据Track项的状态调整射频的工作状态:
· 如果Track项状态为Positive,则允许开启AP射频。
· 如果Track项状态为Negative,则关闭AP射频。
· 如果Track项状态为NotReady,则不更改AP射频的当前状态。
有关Track的详细介绍和配置,请参见“可靠性配置指导”中的“Track”。
为使WLAN上行链路检测功能能够正常运行,需要先配置对上行链路进行监测的监测模块,并将配置的监测模块与Track进行联动。有关Track支持联动的监测模块类型和Track与监测模块进行联动的详细配置请参见“可靠性配置指导”中的“Track”。
表1-1 配置WLAN上行链路检测与Track项联动
操作 |
命令 |
说明 |
进入系统视图 |
system-view |
- |
配置WLAN上行链路检测与Track项联动 |
wlan uplink track track-entry-number |
缺省情况下,未配置WLAN上行链路检测与任何Track项联动 |
AC 1管理的AP 1和AC 2管理的AP 2共同为一个区域的无线客户端提供服务。要求在AC上配置WLAN上行链路检测功能,选用NQA测试组监测上行链路可达性。当AC发现上行链路出现故障,其管理的AP的Radio将被关闭,让客户端仅可以通过上行链路正常工作的AC下的AP接入网络。
图1-1 WLAN上行链路检测典型组网图
(1) 配置AC 1
# 创建ICMP-echo类型的NQA测试组。
<AC1> system-view
[AC1] nqa entry admin test
[AC1-nqa-admin-test] type icmp-echo
# 配置ICMP-echo测试操作中探测报文的目的IPv4地址为10.1.1.1。
[AC1-nqa-admin-test-icmp-echo] destination ip 10.1.1.1
# 建立序号为1的联动项,连续探测失败5次,触发其他模块联动。
[AC1-nqa-admin-test-icmp-echo] reaction 1 checked-element probe-fail threshold-type consecutive 5 action-type trigger-only
[AC1-nqa-admin-test-icmp-echo] quit
# 启动ICMP-echo测试操作。
[AC1] nqa schedule admin test start-time now lifetime forever
# 创建与NQA测试组(管理员为admin,操作标签为test)中联动项1关联的Track项1。
[AC1] track 1 nqa entry admin test reaction 1
# 配置上行链路检测与Track项1关联。
[AC1] wlan uplink track 1
[AC1] quit
(2) 配置AC 2
# 创建ICMP-echo类型的NQA测试组。
<AC2> system-view
[AC2] nqa entry admin test
[AC2-nqa-admin-test] type icmp-echo
# 配置ICMP-echo测试操作中探测报文的目的IPv4地址为11.1.1.1。
[AC2-nqa-admin-test-icmp-echo] destination ip 11.1.1.1
# 建立序号为1的联动项,连续探测失败5次,触发其他模块联动。
[AC2-nqa-admin-test-icmp-echo] reaction 1 checked-element probe-fail threshold-type consecutive 5 action-type trigger-only
[AC2-nqa-admin-test-icmp-echo] quit
# 启动ICMP-echo测试操作。
[AC2] nqa schedule admin test start-time now lifetime forever
# 创建与NQA测试组(管理员为admin,操作标签为test)中联动项1关联的Track项1。
[AC2] track 1 nqa entry admin test reaction 1
# 配置上行链路检测与Track项1关联。
[AC2] wlan uplink track 1
[AC2] quit
# 完成以上配置后,通过display track命令和display wlan ap命令查看Track项的信息和AP的信息可以看到当Track项状态为Positive时,AP的射频状态为Up。
· 查看Track项1的信息。
<AC1> display track 1
Track ID: 1
State: Positive
Duration: 0 days 1 hours 5 minutes 48 seconds
Notification delay: Positive 0, Negative 0 (in seconds)
Tracked object:
NQA entry: admin test
Reaction: 1
· 查看ap1的详细信息。
<AC> display wlan ap name ap1 verbose
AP name : ap1
AP ID : 1
AP group name : default-group
State : Run
Online time : 0 days 2 hours 25 minutes 12 seconds
System up time : 0 days 1 hours 22 minutes 12 seconds
Model : WA4320H
Region code : US
Region code lock : Disable
Serial ID : 219801A0YG8165E00010
MAC address : 83D5-AB43-67FF
IP address : 1.1.1.2
H/W version : Ver.C
S/W version : V700R001B62D001
Boot version : 1.01
Description : wtp1
Priority : 4
Echo interval : 10 seconds
Statistics report interval : 50 seconds
Jumbo frame value : Disabled
MAC type : Local MAC & Split MAC
Tunnel mode : Local Bridging & 802.3 Frame & Native Frame
Discovery type : DHCP
Retransmission count : 3
Retransmission interval : 5 seconds
Firmware upgrade : Enabled
Sent control packets : 1
Received control packets : 1
Connection count : 1
Backup Ipv4 : Not configured
Backup Ipv6 : Not configured
Tunnel encryption : Disabled
LED mode : Normal
Radio 1:
Basic BSSID : N/A
Admin state : Up
Radio type : 802.11n(5GHz)
Antenna type : internal
Client dot11ac-only : Disabled
Client dot11n-only : Disabled
Channel band-width : 20/40MHz
Secondary channel offset : SCB
Short GI for 20MHz : Supported
Short GI for 40MHz : Supported
A-MSDU : Enabled
A-MPDU : Enabled
LDPC : Not Supported
STBC : Supported
Operational HT MCS Set:
Mandatory : Not configured
Supported : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15
Multicast : Not configured
Channel : 64(auto)
Max power : 13 dBm
Operational rate:
Mandatory : 6, 12, 24 Mbps
Supported : 9, 18, 36, 48, 54 Mbps
Multicast : 24 Mbps
Disabled : Not configured
Distance : 1 km
ANI : Enabled
Fragmentation threshold : 2346 bytes
Beacon interval : 100 TU
Protection threshold : 2346 bytes
Long retry threshold : 4
Short retry threshold : 7
Maximum rx duration : 2000 ms
Noise Floor : 0 dBm
Smart antenna : Enabled
Smart antenna policy : Auto
Radio 2:
Basic BSSID : N/A
Admin state : Up
Radio type : 802.11b
Antenna type : internal
Channel : 5(auto)
Max power : 20 dBm
Preamble type : Short
Operational rate:
Mandatory : 1, 2 Mbps
Multicast : Auto
Supported : 5.5, 11 Mbps
Disabled : Not configured
Distance : 1 km
ANI : Enabled
Fragmentation threshold : 2346 bytes
Beacon interval : 100 TU
Protection threshold : 2346 bytes
Long retry threshold : 4
Short retry threshold : 7
Maximum rx duration : 2000 ms
Noise Floor : 0 dBm
# 当Track项状态为Negative时,AP的射频状态为Down。
· 查看Track项1的信息。
<AC1> display track 1
Track ID: 1
State: Negative
Duration: 0 days 2 hours 5 minutes 48 seconds
Notification delay: Positive 0, Negative 0 (in seconds)
Tracked object:
NQA entry: admin test
Reaction: 1
· 查看ap1的详细信息。
<AC1> display wlan ap name ap1 verbose
AP name : ap1
AP ID : 1
AP group name : default-group
State : Run
Online time : 0 days 3 hours 25 minutes 12 seconds
System up time : 0 days 2 hours 22 minutes 12 seconds
Model : WA4320H
Region code : US
Region code lock : Disable
Serial ID : 219801A0YG8165E00010
MAC address : 83D5-AB43-67FF
IP address : 1.1.1.2
H/W version : Ver.C
S/W version : V700R001B62D001
Boot version : 1.01
Description : wtp1
Priority : 4
Echo interval : 10 seconds
Statistics report interval : 50 seconds
Jumbo frame value : Disabled
MAC type : Local MAC & Split MAC
Tunnel mode : Local Bridging & 802.3 Frame & Native Frame
Discovery type : DHCP
Retransmission count : 3
Retransmission interval : 5 seconds
Firmware upgrade : Enabled
Sent control packets : 1
Received control packets : 1
Connection count : 1
Backup Ipv4 : Not configured
Backup Ipv6 : Not configured
Tunnel encryption : Disabled
LED mode : Normal
Radio 1:
Basic BSSID : N/A
Admin state : Down
Radio type : 802.11n(5GHz)
Antenna type : internal
Client dot11ac-only : Disabled
Client dot11n-only : Disabled
Channel band-width : 20/40MHz
Secondary channel offset : SCB
Short GI for 20MHz : Supported
Short GI for 40MHz : Supported
A-MSDU : Enabled
A-MPDU : Enabled
LDPC : Not Supported
STBC : Supported
Operational HT MCS Set:
Mandatory : Not configured
Supported : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15
Multicast : Not configured
Channel : 64(auto)
Max power : 13 dBm
Operational rate:
Mandatory : 6, 12, 24 Mbps
Supported : 9, 18, 36, 48, 54 Mbps
Multicast : 24 Mbps
Disabled : Not configured
Distance : 1 km
ANI : Enabled
Fragmentation threshold : 2346 bytes
Beacon interval : 100 TU
Protection threshold : 2346 bytes
Long retry threshold : 4
Short retry threshold : 7
Maximum rx duration : 2000 ms
Noise Floor : 0 dBm
Smart antenna : Enabled
Smart antenna policy : Auto
Radio 2:
Basic BSSID : N/A
Admin state : Down
Radio type : 802.11b
Antenna type : internal
Channel : 5(auto)
Max power : 20 dBm
Preamble type : Short
Operational rate:
Mandatory : 1, 2 Mbps
Multicast : Auto
Supported : 5.5, 11 Mbps
Disabled : Not configured
Distance : 1 km
ANI : Enabled
Fragmentation threshold : 2346 bytes
Beacon interval : 100 TU
Protection threshold : 2346 bytes
Long retry threshold : 4
Short retry threshold : 7
Maximum rx duration : 2000 ms
Noise Floor : 0 dBm
不同款型规格的资料略有差异, 详细信息请向具体销售和400咨询。H3C保留在没有任何通知或提示的情况下对资料内容进行修改的权利!