Clean install - Failed to connect to server

[pmorvay]

Hi I am getting familiar with NSO, starting with the "getting started guide". But I have issue to connected to simulated device.

I have clean install of NSO 4.7, I have same issue on MacOS and Ubuntu 18.04.:

I think I am missing some initial step. On MacOS initially it shown issue with java, which I resolved by installing older version of java 6.

cisco@ubuntu:~$ source /home/cisco/nso-4.7/ncsrc
cisco@ubuntu:~$ cd /home/cisco/nso-4.7/examples.ncs/getting-started/using-ncs/1-simulated-cisco-ios
cisco@ubuntu:~/nso-4.7/examples.ncs/getting-started/using-ncs/1-simulated-cisco-ios$ ncs-netsim create-network /home/cisco/nso-4.7/packages/neds/cisco-ios 3 c
DEVICE c0 CREATED
DEVICE c1 CREATED
DEVICE c2 CREATED
cisco@ubuntu:~/nso-4.7/examples.ncs/getting-started/using-ncs/1-simulated-cisco-ios$ ncs-netsim list
ncs-netsim list for /home/cisco/nso-4.7/examples.ncs/getting-started/using-ncs/1-simulated-cisco-ios/netsim

name=c0 netconf=12022 snmp=11022 ipc=5010 cli=10022 dir=/home/cisco/nso-4.7/examples.ncs/getting-started/using-ncs/1-simulated-cisco-ios/netsim/c/c0
name=c1 netconf=12023 snmp=11023 ipc=5011 cli=10023 dir=/home/cisco/nso-4.7/examples.ncs/getting-started/using-ncs/1-simulated-cisco-ios/netsim/c/c1
name=c2 netconf=12024 snmp=11024 ipc=5012 cli=10024 dir=/home/cisco/nso-4.7/examples.ncs/getting-started/using-ncs/1-simulated-cisco-ios/netsim/c/c2
cisco@ubuntu:~/nso-4.7/examples.ncs/getting-started/using-ncs/1-simulated-cisco-ios$ ncs-netsim cli-i c1
Failed to connect to server
cisco@ubuntu:~/nso-4.7/examples.ncs/getting-started/using-ncs/1-simulated-cisco-ios$ ncs-netsim cli-c c1
Failed to connect to server

It seems, the simulated device does not start at all:

ncs-netsim is-alive
DEVICE c0 FAIL
DEVICE c1 FAIL
DEVICE c2 FAIL

Any advise?

This is how I installed the NSO:

133 cd nso-4.7.linux.x86_64/
134 ls
135 sh nso-4.7.linux.x86_64.signed.bin
136 ls
137 sh nso-4.7.linux.x86_64.installer.bin $HOME/nso-4.7

[lmanor · Accepted solution]

Hello,

From the output it doesn't look like you have started the netsim devices.

$ ncs-netsim start

Here is the sequence I generally use:

===============  netsim setup ==============

$ ncs-netsim --help

$ ncs-netsim create-network ./packages/cisco-iosxr 2 asr

DEVICE asr0 CREATED

DEVICE asr1 CREATED

$ ncs-netsim add-to-network ./packages/juniper-junos 2 mx

DEVICE mx0 CREATED

DEVICE mx1 CREATED

$ ncs-netsim start

DEVICE asr0 OK STARTED

DEVICE asr1 OK STARTED

DEVICE mx0 OK STARTED

DEVICE mx1 OK STARTED

# Save nets device unbarring config xml to ncs-cdb directory

$ ncs-setup --netsim-dir ./netsim --dest .

$ ls ncs-cdb

netsim_devices_init.xml

$ ncs-netsim cli-i asr0

-Larry

[lmanor]

Should read:
# Save netsim device onboarding config xml to ncs-cdb directory

[pmorvay]

Thank you very much for you help, I indeed skipped the step to start simulated devices.

I will re-read the starting guide. Your help is much appreciated.