更新Fabric OS后、SANNAV与交换机的连接丢失

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SANNAV与从FOS v9.2.0更新到FOS v9.2.1的交换机断开连接
尝试重新发现交换机网络结构失败，并显示 Discovery Failed. Seed switch IP address is either not reachable or having problem in connecting via HTTPS：

服务器到交换机通信首选项为“第一个HTTPS，然后是HTTP”，如下所述 <SANnav installation directory>/conf/server.properties：

# Server to Switch Communication preference

# 0 --> HTTP Only

# 1 --> HTTPS Only

# 2 --> First HTTPS and then HTTP

dcm.server.switch.comm.preference=2

switch:admin> ipfilter --show

Name: default_ipv4, Type: ipv4, State: active

Rule Source IP Protocol Dest Port Action

[...]

3 any tcp 80 permit

4 any tcp 443 permit

[...]

# curl http://<switch IP address>/secinfo.html -u admin:<password>

<HTML>

<HEAD>

<META HTTP-EQUIV="Pragma" CONTENT="no-cache">

[...]