I am sorry to generalize. I can be more specific if needed. I have a site that my wireless aps cannot connect, there are 5 aironet 1230's on 4 floors to 4 diffewrent switches. All broadcasts go through fine, dhcp, arp and cdp. I cannot ping any device on that vlan however even from the switch they are directly connected to and see them with cdp neighbor. The vlan is active and the network has been up without problems for six months. What are some show commands I can use to find out why unicast packets are being either dropped or timing out. All interfaces are up and up. The vlan is up and up and active. I can ping the interface on the router that is that vlans default gateway from each switch. The switches are 4000 switches with one acting as the core. The 4 switches are trunked to the core switch then the feeds for each vlan are patched to the routers interfaces from the core switch. The feed ports on the core switch are vlanned and up and up. The core switch is the vtp server and the rest are clients. The router has no trunks to the core so it does not recieve vtp updates. Thanks.
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...