Layer 2 security – ARP and ARP Inspection Introduction This article is the second of our layer 2 attacks identification and mitigation techniques series, which will be a part of a bigger series discussing Security Infrastructure. Dynamic ARP Inspection relies on DHCP snooping technology explained in the previous article. It’s strongly recommended to […]
The post ARP, ARP Inspection, ARP Types and Deployment Considerations appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
The new funding brings Innovium’s total financing to $90 million.
It’s based on the Linux Foundation’s Hyperledger open source effort.
MVNOs could rent the access layer from the operator but deploy their own VNFs.
Let’s look at what’s happening in the area of Internet infrastructure resilience in the IETF and at the upcoming IETF 98 meeting. My focus here is primarily on the routing and forwarding planes and specifically routing security and unwanted traffic of Distributed Denial of Service Attacks (DDoS) attacks. There is interesting and important work underway at the IETF that can help address problems in both areas.
It's eliminated the need for Avaya’s Open Network Adapter.
The IP suite was always loosely grounded in the end-to-end principle, defined here (a version of this paper is also apparently available here), is quoted in RFC2775 as:
The function in question can completely and correctly be implemented only with the knowledge and help of the application standing at the endpoints of the communication system. Therefore, providing that questioned function as a feature of the communication system itself is not possible. … This principle has important consequences if we require applications to survive partial network failures. An end-to-end protocol design should not rely on the maintenance of state (i.e. information about the state of the end-to-end communication) inside the network.
How are the Internet and (by extension) IP networks in general doing in regards to the end-to-end principle? Perhaps the first notice in IETF drafts is RFC2101, which argues the IPv4 address was originally a locater and an identifier, and that the locater usage has become the primary usage. This is much of the argument around LISP and many other areas of work—but I think 2101 mistates the case a bit. That the original point of an IP address is to locate a topological location in the network is Continue reading
ACE combines integrated photonics with SDN.
The post Worth Reading: So You Want to get Certified appeared first on 'net work.