I have two 3750 switch and one of them is core switch.The core switch is configured 14 VLAN.the 2nd l3 switch is connected with core switch by trunk mode.My all VLAN is working properly except VLAN 4.The problem is VLAN 4 it goes down and after 30/40 second it goes up.I tried but can't find out the problem so please help me out of this problem.
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...