Jupyter notebook, unable to connect in web browser (both mozilla and chrome)

When I type the command ‘jupyter notebook’, I get the following.

[I 20:09:48.354 NotebookApp] Serving notebooks from local directory: /home/subbu/.jupyter
[I 20:09:48.358 NotebookApp] The Jupyter Notebook is running at:
[I 20:09:48.360 NotebookApp] http://localhost:8888/?token=cb6df2b84707200ed224294b2764fa78a27a0bac40ed702f
[I 20:09:48.363 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[W 20:09:48.399 NotebookApp] No web browser found: could not locate runnable browser.
[C 20:09:48.402 NotebookApp]

To access the notebook, open this file in a browser:
Or copy and paste one of these URLs:

But when I paste the link in web browser , it says ‘unable to connect to local host 8888’

Can you kindly help in solving this issue.