CTC Change from local view to Network view

Answered Question
Apr 19th, 2007
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Hi, i got a problem with an ONS 15454, when i access the CTC local view of the equipment the system say that it loss connection and change the local view to a network view. The node shows a grey color and it could be accessed again after two minutes.


My CTC version is 7.0.0 and my computer is running Windows 2000.

Correct Answer by mcavalli about 9 years 9 months ago

It's a network problem.

You have a firewall into your network.

You need to go from CTC on network parameters (provisioning --> network) and setup:


Enable SOKCS proxy

SOCKS proxy only.


This should work, but take care about your network topology.

E.G.: if you have some other host NOT 15454 connected to your network it's possible that you lost them.


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tphelps Thu, 04/19/2007 - 12:42
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Does the node icon display the node name or the IP address when CTC loses connectivity?


How are you connecting to the node? Via TCC Port? LAN? DCC? Through a firewall?



There are two possibilities:

1. Gray with node name = Node is initializing


2. Gray with IP address = Node is initializing; a problem exists with IP routing from node to CTC or your login/password is not provisioned on this node


I suspect you have a problem with the Java/CORBA session being interrupted and causing CTC to reinitialize the node in the session.

ronald-salas Thu, 04/19/2007 - 14:17
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CTC show a window titled "CTC Alert", where it shows a message of "Lost connection to nodeName, changing to network view", and the Node icon display the node name.


I suppose that node is initializing at software level, because i have not problems with physical optic comunication.


Right now i?m trying to connect to ONS by LAN on the TCC2P LAN port, but this problem also happen even when i connect a Laptop directly to the TCC2P LAN port or MIC-C/T/P LAN port.

Correct Answer
mcavalli Wed, 06/27/2007 - 06:10
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  • Cisco Employee,

It's a network problem.

You have a firewall into your network.

You need to go from CTC on network parameters (provisioning --> network) and setup:


Enable SOKCS proxy

SOCKS proxy only.


This should work, but take care about your network topology.

E.G.: if you have some other host NOT 15454 connected to your network it's possible that you lost them.


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