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Hi, i have some problems with a ZTE C300 OLT device.When i tried to sync the device, get stucked at loging:

admin@ncs# devices device olt_zte_c300 sync-from
result false
info Failed to connect to device olt_zte_c300: connection refused: Timeout after 20s, blocked on: "Password:" in state login
admin@ncs#

I verified the password, and i am sure is correct.

The NED version i am using is ncs-4.7.2-zte-xpon-3.0.3

This is my NSO device configuration:

cli {
    local-node {
        data  devices {
             +    device olt_zte_c300 {
             +        address 10.64.16.29;
             +        port 23;
             +        authgroup OLT_ZTE;
             +        device-type {
             +            cli {
             +                ned-id zte-xpon;
             +                protocol telnet;
             +            }
             +        }
             +        state {
             +            admin-state unlocked;
             +        }
             +    }
              }
    }
}

For some reason, in the device configuration says HUAWEI:

admin@ncs# show running-config devices device olt_zte_c300
devices device olt_zte_c300
 address   10.64.16.29
 port      23
 authgroup OLT_ZTE
 device-type cli ned-id zte-xpon
 device-type cli protocol telnet
 state admin-state unlocked
 config
  vrp:sysname HUAWEI
  no vrp:dcn
 !
!

When I activated the "log-verbose" in the ned-settings i get this:

[root@nso-acceso ncs]# tail ned-zte-xpon-olt_zte_c300.trace
        at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
        at com.tailf.ned.TelnetSession.get_char(TelnetSession.java:801)
        at com.tailf.ned.TelnetSession.expect(TelnetSession.java:558)
        at com.tailf.ned.TelnetSession.expect(TelnetSession.java:482)
        at com.tailf.packages.ned.nedcom.connector.CliConsole.expect(CliConsole.java:97)
        ... 17 more

<< 21-Mar-2019::15:20:38.599 user: admin/12353 thandle 23514 device olt_zte_c300 ERROR: Failed to connect to device olt_zte_c300: connection refused: Timeout after 20s, blocked on: "Password:" in state login
-- WORKER CLOSE ==>
-- WORKER CLOSE OK