We have a Catalyst 2960G-24TC-L switch. I have set the 'jumbo frame mtu 9000'. When I try to ping a server located on G0/19 port from G0/1-4 ports the sever do not reply those requests for which packet size is above 1500 byte. It happens only that case, when I try to ping from a gigabit NIC. Everything is OK if the source switchports are different from the ports G0/1-4 or I try to ping from fastethernet NIC.
One more addition: First time, when I turned the switch on I set the first four switchports' speed to 100M and duplex full state. Later, when they changed the NIC from 100 Mbps to 1000 Mbps I set the ports state to auto. I have loaded the newest IOS to the swith, and reloaded it many times. The problem seems persistent.
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...