Bay Networks Baystream 7 Configuration And Troubleshooting Manual page 133

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7.
8.
115623B Rev. 00
If after attempting to ping a device the response is "Unknown Network" or
"Network Unreachable," check the local node's routing table and its default
gateway definition.
If the
command yields the response "Target does not respond," the
ping
station you issued the ping from believes it knows how to get to the end node,
but never received a reply to its echo request. In this case, start pinging each
node in the path between the source and destination until you find the problem
interface.
Refer to the BayStream guide Troubleshooting and Testing for detailed
instructions on issuing a
Use Packet Capture to save data packets for later analysis.
The Technician Interface Packet Capture tool allows you to filter, send,
capture, and view packets in hexadecimal format. You can save the data in a
Network General Sniffer format file, transfer the file to a network analyzer,
and use the analyzer to parse the data. We recommend that you use Packet
Capture to capture data generated on remote BayStream platforms, save it in
Network General Sniffer format files, and use TFTP or FTP to transfer the
files to a site where you can open the files with a network analyzer.
For detailed instructions on using Packet Capture, refer to the BayStream
guide Troubleshooting and Testing.
Take a snapshot of your network.
You should periodically gather and save the forwarding and routing tables
maintained by each BayStream platform. You can use the Statistics Manager
to do this.
This information can help you troubleshoot future problems. For example,
you may find the next-hop address to a given destination does not match that
in a table you saved previously. From this, you might conclude that there may
be a problem with the connection to the node that should be the next hop
address.
You can use the Statistics Manager to save tables to files as follows:
Use the Statistics Manager Screen Manager tool to add the routing
a.
tables in the Default Screen List window to the Current Screen List
window.
BayStream Multiservice Software Version 7.2
command.
ping
Troubleshooting
11-13

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