I tried to telnet to a 2950, but was not able to this morning. I tried to ping is DNS name and its IP address, but I am not able to. I consoled into the switch and tried to ping our router with no success. I reloaded the switch and has the same results. How can I fix this?
How is the 2950 configured? What is its IP address? Does it have a default-gateway configured? How is the switch connected to the router? Is the switch port connecting to the router configured as an access port or as a trunk? Does the 2950 have just a single VLAN or does it have multiple VLANs?
Without knowing these details that would be very useful, my first guess is that the 2950 does not have a default-gateway configured or that the configured default-gateway does not match up with the router configuration. My second guess would be that there may be a mismatch between switch configuration and router configuration for address and subnet mask.
Provide us with some details and we may be able to find the answer to your problem.