Avaya Troubleshooting Routers Instrukcja Naprawy Pobierz pdf (Strona 46)

Troubleshooting Routers

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Unlike the Series 5 software, more than one user can establish an inbound or

outbound Telnet session with a router at the same time. However, we do not

recommend multiple Telnet sessions because the memory requirements to

maintain multiple TCP connections can affect system performance.

For more detailed instructions on how to establish a Telnet connection to a router,

refer to Using Technician Interface Software.

To troubleshoot Telnet, refer to “Troubleshooting Telnet, FTP, and TFTP” in

Chapter 6.

Taking a Snapshot of Your Network

We recommend that you periodically gather and save the forwarding and routing

tables maintained by the protocols running in each router. You can use the

Technician Interface or the Statistics Manager to do this.

Access to this information will be helpful when you are troubleshooting problems

in the future. For example, when troubleshooting a problem, you may ﬁnd the

next hop address to a given destination does not match that in a table you saved

previously. This would help you to conclude that there may be a problem with the

connection to the node that should be the next hop address.

You can use the Technician Interface to save tables (or any other Technician

Interface displays) to a single ﬁle as follows:

1. Access Manager mode.

2. Enter the following command:

record open

<ﬁlename>

is the number or letter of the router’s storage medium you are using

to store the ﬁle.

<ﬁlename>

is the name of the ﬁle you are creating to store the text that

appears in the Technician Interface.

3. Display the routing tables.

4. Enter the following command to copy the ﬁle from memory to the

router’s ﬁle storage medium and terminate the recording:

record close

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Avaya Troubleshooting Routers Instrukcja Naprawy Strona 46