- 2 Catalyst 6509 with Sup1A/MSFC/PFC interconnected with each other (HSRP configured for client's high availability). This switches acts as part of our backbone;
- Several clients connected to Catalysts (most of them with physical redundancy);
Recently, our entire infrastructure has been affected with an attack originated in one of the clients (HSRP flapping, slow networks, etc...). I can't confirm what kind of attack we was dealing but this attack generated 100Mbps of traffic into the infrastructure (note that the uplink of this client is one 100Mbps port of the switch). When we disabled the ports that connect the backbone to the client's switch, everything has normalized!
So, here goes my question:
- Applying QoS strategies (such as policing) to drop traffic on problematic or suspiscious ports can be considered a "best practice" for this situation? Or what can be done to reduce the impacts in situations like this?
Just to make things easier, we don't have budget to implement any hardware and/or software this time...
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...