Do you feel that you’ve been hearing a lot about data breaches lately? You are right! Take a look at the chart below. There is plenty of time left in September, but the data breach calendar is already filled with victim names. And August? I don’t even have enough space to put down all the victim names.
If anyone believes that if we do a great job, we can fully guard our data and valuable information assets against attacks and breaches, now it’s time to think again. The reality is, data breaches can happen to anyone. They are happening everywhere from household names, to lesser-known businesses or organizations, and to the mighty government of the United States. The question is no longer “if”, it is “when”.
However, this does not mean that we will just give up. On the contrary, we need new thinking. And get prepared. We need to be prepared before breaches take place to minimize their chances to succeed. We need to be prepared during breaches to detect and stop them. And we need to be prepared to rapidly apply mitigations after breaches. We cannot totally eliminate these risks, but we can control and minimize them. Read More »
Tags: catalyst, data breaches, security, switch
Nuclear security is a high priority international threat today. The Nuclear Security Summit (NSS) 2014 took place in The Hague, the Netherlands, following the summits in Washington D.C (2010) and Seoul (2012).
An event of this magnitude required nothing but the best network solution. The venue had existing small networks across 5 buildings and 4 tents. They decided to disable the existing networks and setup a comprehensive Cisco network solution exclusively for this event. The major requirements were: Read More »
Tags: midmarket, network management, NSS, security, unified access, VLAN, wi-fi, wifi, wireless
Data traffic has grown dramatically in the recent years, leading to increased deployment of network service appliances and servers in enterprise, data center, and cloud environments. To address the corresponding business needs, network switch and router architecture has evolved to support multi-terabit capacity. However, service appliance and server capacity remained limited to a few gigabits, far below switch capacity.
ITD (Intelligent Traffic Director) is a hardware based multi-Tbps Layer 4 load-balancing, traffic steering and clustering solution on Nexus 7xxx series of switches. It supports IP-stickiness, resiliency, NAT (EFT), VIP, health monitoring, sophisticated failure handling policies, N+M redundancy, IPv4, IPv6, VRF, weighted load-balancing, bi-directional flow-coherency, and IPSLA probes including DNS. There is no service module or external appliance needed. ITD provides order of magnitude CAPEX and OPEX savings for the customers. ITD is available on Nexus 7000/7700 series in NX-OS 6.2(8) or later. It is available for demo on Nexus 5k/6k. ITD is much superior than legacy solutions like PBR, WCCP, ECMP, port-channel, layer-4 load-balancer appliances.
Example use-cases: Read More »
Tags: ACE, application performance, cache engines, cisco appnav, Cisco Data Center, cisco firewall, Cisco vWAAS, Citrix NetScaler, clustering, ECMP, ITD, load bala, load balancer, routing, Scalability, vPC
The Internet routing table size has continued to grow steadily. In 2008 we reached 256K routes and now the table has exceed 512K Routes. This is of significance for customers running some of the older PFC3 based Supervisor 720 engines on the 6500 and 7600 switches.
On the Catalyst 6500 and 7600 Series platforms, all of the routing information is stored in special high-speed memory called TCAM. Read More »
Tags: Catalyst 6500, Internet Routing Table Size, ipv4 address exhaustion, Ternary Content Addressable Memory (TCAM)
Networking environments can be harsh. Outdoor environments are often harsher!
Do not try this at home. When testing your Cisco switches for high availability capabilities, we recommend not setting them on fire, crashing into, or flooding them with water. However, we do have some experience with these situations and our switches keep running.
The network must operate 24 hours a day. With many devices and applications running on the network, oftentimes a few seconds of downtime can mean tens of thousands of dollars in financial loss. And yet, none of these usual measures for uptime take into account an actual physical disaster. Indeed, seldom do people think about what could happen to their switches in the physical environment that they are being deployed. Read More »
Tags: Catalyst 4500E, Crash Test, Rugged Switch, Uptime