现场使用LA3608E做业务回传测试,用PC模拟虚拟无线客户端向AC传输文件速率只有200KB/S左右。收到现场反馈后,我们立刻收集信息对问题进行排查。
现场组网:
一、确认AC AP版本
1、AC版本:
H3C Comware Platform Software
Comware Software, Version 5.20, Release 3509P55
Copyright (c) 2004-2016 Hangzhou H3C Tech. Co., Ltd. All rights reserved.
H3C WX3010E uptime is 0 week, 2 days, 19 hours, 5 minutes
H3C WX3010E with 1 RMI XLS 208 750MHz Processor
512M bytes DDR2
16M bytes Flash Memory
999M bytes CFCard Memory
2、AP版本:
H3C Comware Platform Software
Comware Software, Version 5.20, Release 0010P18
Copyright (c) 2004-2016 Hangzhou H3C Tech. Co., Ltd. All rights reserved.
H3C LA3608E uptime is 0 week, 0 day, 0 hour, 3 minutes
AC和AP版本适配。
二、查看配置
1、AC上AP模板配置:
wlan ap znjt model LA3608E id 7
map-configuration la3608egm.txt
serial-id 219801A0J2M175000125
radio 1
service-template 10 vlan-id 10
radio enable
2、AP拨号配置:
interface Cellular-Ethernet2/0
ip address cellular-allocated
dialer enable-circular
dialer-group 1
dialer timer idle 0
dialer timer wait-carrier 15
dialer timer autodial 20
dialer number *99# autodial
配置没有问题。
三、验证配置
1、在AC上查看AP上线情况:
===============display wlan ap all===============
=======================================================
Total Number of APs configured : 2
Total Number of configured APs connected : 1
Total Number of auto APs connected : 0
Total Number of APs connected : 1
Maximum AP capacity : 12
Remaining AP capacity : 11
AP Profiles
State : I = Idle, J = Join, JA = JoinAck, IL = ImageLoad
C = Config, R = Run, KU = KeyUpdate, KC = KeyCfm
M = Master, B = Backup
--------------------------------------------------------------------------------
AP Name State Model Serial-ID
--------------------------------------------------------------------------------
znjt1 I LA3608E 219801A0JNM16B000055
znjt R/M LA3608E 219801A0J2M175000125
2、在AC上查看虚拟客户端上线情况:
===============display wlan client===============
=======================================================
Total Number of Clients : 1
Client Information
SSID: znjt
--------------------------------------------------------------------------------
MAC Address User Name APID/RID IP Address IPv6 Address VLAN
--------------------------------------------------------------------------------
0021-ccd1-9b93 -NA- 7 /1 192.168.1.103 -NA- 10
--------------------------------------------------------------------------------
AP和终端注册状态正常。
四、查看拨号状态
1、查看SIM卡状态
Modem Security Information
====================
PIN Verification = Disabled
PIN Status = PIN Requirement Disabled
Number of PIN Retries Remaining = 3
Number of PUK Retries Remaining = 10
SIM Status = OK(SIM卡状态正常)
2、查看注册网络状态
Network Information
====================
Current Service Status = Service Available(运营商服务可用)
Registration Status = Registered
Current Service = Packet-switched
Current Roaming Status = Home
Current Data Bearer Technology = LTE
Network Selection Mode = Automatic
Mobile Network Name = 460 11
Mobile Country Code (MCC) = 460
Mobile Network Code (MNC) = 11
Location Area Code (LAC) = 65534
Tracking Area Code(TAC) = 256
Cell ID = 1060105
3、查看信号强度
Radio Information
====================
Technology Preference = LTE only(现场SIM卡只支持LTE网络)
Technology Selected = LTE
Configured LTE Band = 1
HDR (1xEVDO) related info
------------------
Current RSSI = No Signal
Current ECIO = -2 dBm
Current IO = -106 dBm
LTE related info
------------------
Current RSSI = -59 dBm
Current RSRQ = -8 dB
Current RSRP = -89 dBm(信号为-89dBm)
Current SNR = 21 dB
Tx Power = Invalid
Active Band = E-UTRA Operating Band 1
可以看到现场SIM卡只支持4G LTE网络,设备接入4G时需要关心的信号强度值由RSRP来描述,通常在-75dBm以上时较好,在-90dBm以下时较差。由此可以判断此时的信号强度较差导致传输速率低。
让现场换一个4G信号较好的地方测试,上传速率正常。
遇到此类问题时,从版本、配置、AP客户端状态、SIM卡状态逐一仔细排查就可以发现问题的根因,另外4G信号的强度需要关心RSRP的值。
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