I have two routers in each branch office, a set of 1720's and a set of 2600's. Both 1720's are connected via a point2point T1, configured for bridging and in the initial configuration set at duplex-auto. I recently tried to set up a 2600 on one side, began by configuring the fastethernet, and once again chose auto duplex. Once the FastEth. was configured, the router began displaying messages that there was a duplex mismatch, it detected the 1720 at full duplex and it (the 2600) was only at half duplex. I then reconfigured the fastethnet to duplex-full. After the no-shutdown command, the fastethernet goes down. If I then change the command to duplex auto or half, it comes back up. I changed Cat5 cable, hub, etc... How do I get this to work full duplex? Thanks..
You say that you changed the hub. I don't think full duplex is an option with hubs. Was that there before when you only had 1720 or did you add that when you added the new router? You probably need to set all devices to half duplex or replace your hub with a switch.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...