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bo chen
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Spotlight
Member since ‎02-23-2016
‎12-24-2024
Awards
2
Spotlight Awards Question Answer Chinese Community Member's Choice, February 2023
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Awards

User Statistics

  • 69 Posts
  • 13 Solutions
  • 4929 Helpful votes Given
  • 275 Helpful votes Received
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First Discussion
70 Discussion Posts
60 Replies
350 Helpful Vote
40 Discussion Posts
40 Helpful Vote
40 Replies
300 Helpful Vote
250 Helpful Vote
50 Helpful Vote
Certifications
Cisco Certified DevNet Associate
Cisco Certified DevNet Associate
DevNet Class of 2020
Cisco Certified Specialist - Security Core
Cisco Certified Specialist - Security Core
Cisco Certified Specialist - Security Core
Cisco Certified Specialist - Security Core
Cisco Certified Internetwork Expert Enterprise Infrastructure (CCIE Enterprise Infrastructure)
Cisco Certified Internetwork Expert Enterprise Infrastructure (CCIE Enterprise Infrastructure)
Cisco Certified Internetwork Expert Routing and Switching (CCIE Routing and Switching)
Cisco Certified Internetwork Expert Routing and Switching (CCIE Routing and Switching)
Cisco Certified Internetwork Expert Routing and Switching (CCIE Routing and Switching)
Cisco Certified Specialist - Enterprise Advanced Infrastructure Implementation
Cisco Certified Specialist - Enterprise Core
Cisco Certified Network Professional Enterprise (CCNP Enterprise)
Cisco Certified Specialist - Enterprise Advanced Infrastructure Implementation
Cisco Certified Specialist - Enterprise Core
Cisco Certified Network Professional Enterprise (CCNP Enterprise)
Cisco Certified Specialist - Enterprise Advanced Infrastructure Implementation
Cisco Certified Specialist - Enterprise Core
Cisco Certified Networking Professional -Enterprise
Cisco Certified Network Professional Routing and Switching (CCNP Routing and Switching)
Cisco Certified Specialist - Enterprise Advanced Infrastructure Implementation
Cisco Certified Specialist - Enterprise Core
Cisco Certified Networking Professional -Enterprise
Cisco Certified Network Professional Routing and Switching (CCNP Routing and Switching)
Cisco Certified Network Professional Routing and Switching (CCNP Routing and Switching)
Cisco Certified Network Professional Routing and Switching (CCNP Routing and Switching)
Cisco Certified Network Professional Routing and Switching (CCNP Routing and Switching)
CCNA
CCNA
CCNA
CCNA
CCNA
Cisco Certified Network Associate Routing and Switching (CCNA Routing and Switching)
CCNA
Cisco Certified Network Associate Routing and Switching (CCNA Routing and Switching)
Cisco Certified Network Associate Routing and Switching (CCNA Routing and Switching)
Cisco Certified Network Associate Routing and Switching (CCNA Routing and Switching)
Cisco Certified Network Associate Routing and Switching (CCNA Routing and Switching)

User Activity

【原创】FPR2100 ASA9.8由于MIO Heartbeat Failure导致主备切换问题

07-08-2020
本帖最后由 CSCO12178277 于 2020-7-8 23:45 编辑 两台FPR2100的ASA版本是9.8(3)8，上面做的failover，最近发现主备自动切换，经查看设备硬件和链路质量并无问题。显示故障原因为两个设备的MIO心跳故障（MIO-blade heartbeat failure)，但经查看两设备之间链路也无问题。后经case及其他相关资料确定为bug。该bug可以通过更换软件版本解决此问题。也可以通过修改心跳检测间隔来缓解此BUG触发的频率。具体命令为app-agent...

【原创】ASA做SSL VPN server 导入公网证书

06-25-2019
本帖最后由 CSCO12178277 于 2019-6-26 12:11 编辑 今天给大家分享一下通过ASDM给ASA做的ssl vpn server导入公网证书。公网证书有多种格式，如.cer/.pem/.p7b/.pfx。而通过ASDM需要的格式则是.pfx格式，因此如果格式不一致，需要各为同学去转换一下证书格式。转换格式的方式有很多，现在一般证书厂商都提供在线格式转换模板，还有一种方式是自行转换，方法是使用linux使用openssl转换，具体命令是openssl pkc...

【原创】N7K镜像

07-08-2018
在实际工作中经常需要进行流量分析，因此端口镜像就成了不二的选择，对于catalyst系列交换机的端口镜像和nexus系列交换机镜像还是有些许不同，在此分享一下我在实际工作中针对N7K的镜像配置技术分享。 第一步：要创建一个monitor session <进程号> 第二步：定义抓取的流量原 此处参数可以是 <物理端口> + <in> 如 source vlan 11 both 第三步：定义镜像目的端口 此处参数为物理端口 如 destination interfa...

【原创故障案例分享】在OSX上卸载Anyconnect后无法安装的解决办法

06-20-2018
问题现象：公司VPN采用了Cisco anyconnect，在mac系统上将anyconnect删除之后，却发现无法重新安装。这种情况分为两种，一种是直接将Cisco anyconnect client图标扔进垃圾箱了，一种是把cisco整个目录都扔进垃圾箱了。错误删除后再次安装截图如下种： 问题原因：造成无法安装的原因是因为直接删除cisco文件导致程序卸载不完整，好多人说在mac系统上卸载程序就是直接删除，看来不全是这样啊。解决方案：无论是哪种情况导致的无法重新安装，总体思路是先执行unin...

【故障案例分享】在PPPOE环境下MTU引起的部分网站无法访问故障

06-20-2018
案例背景： 某公司有100人左右，申请了一条20M的电信ADSL宽带，使用思科2821路由器做出出口路由器，内部是几台思科交换机。思科路由器做PPPoE拨号、NAT转换和DHCP的功能。但在配置完成之后，网管发现许多电脑不能打开淘宝网，即使打开图片也显示不出来，QQ等应用正常，大部分网站正常，ping、telnet等测试正常。拓扑图：排查过程： 到达现场后，笔者先查看并确认了故障现象，确实跟网管描述一致。由于是多台电脑都有此现象，排除了电脑问题。ping网关、各种网站都正常，排除链路问题。由...
Community Statistics
Member Since ‎02-23-2016 09:26 PM
Date Last Visited ‎12-24-2024 07:00 PM
Posts 69
Total Helpful Votes Received 275
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Question Answer
Community Spotlight Award
Chinese Community Member's Choice, February 2023
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