![]() ![]() Hardware and software high availability.Mice flows, sensitive to congestion and latency can take priority queue and avoid re-ordering that allows to elephant flows to take full link bandwidth. ![]() ◦ Dynamic Packet Prioritization (DPP) provides the capability of separating mice flows and elephant flows into two different queues so that buffer space can be allocated to them independently. After a flow crosses the threshold, it becomes an elephant flow. ◦ ETRAP measures the byte counts of incoming flows and compares this against the user defined ETRAP threshold. Also, AFD tracks elephant flows and subjects them to the AFD algorithm in the egress queue to grant them their fair share of bandwidth. AFD exempts mice flows from the dropping algorithm so that mice flows will get their fair share of bandwidth without being starved by bandwidth-hungry elephant flows. AFD distinguishes long-lived elephant flows from short-lived mice flows, by using ETRAP. ◦ Approximate Fair Dropping (AFD) with Elephant trap (ETRAP). ◦ Intelligent buffer management functions are: ◦ The platform offers Cisco’s innovative intelligent buffer management, that offers capability to distinguish mice and elephant flows and apply different queue management schemes to them based on their network forwarding requirements in the event of link congestion. Flexible use of TCAM space allows for custom definition of Access Control List (ACL) templates. ◦ Flexible forwarding tables support up to 1 million shared entries on EX models. ◦ Pervasive API’s for all switch CLI functions (JSON based RPC over HTTP/HTTPs). Extensive Native YANG and industry standard OpenConfig model support through RESTCONF/NETCONF. ◦ Industry leading integrations for leading devops configuration management applications – Ansible, Chef, Puppet, SALT. ◦ Day zero automation through Power On Auto Provisioning, drastically reducing provisioning time. ◦ Comprehensive protocol support for Layer 3 (v4/v6) unicast and multicast routing protocol suites, including BGP, Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP), Routing Information Protocol Version 2 (RIPv2), Protocol Independent Multicast Sparse Mode (PIM-SM), Source-Specific Multicast (SSM), and Multicast Source Discovery Protocol (MSDP). It provides a control-plane alternative for increased network scalability and virtualization. ◦ Segment routing allows the network to forward Multiprotocol Label Switching (MPLS) packets and engineer traffic without Resource Reservation Protocol (RSVP) Traffic Engineering (TE). ◦ Three-tier BGP architectures, enabling horizontal, non-blocking IPv6 network fabrics at web-scale. ◦ Support for standards based VXLAN EVPN fabrics, inclusive of hierarchical multi-site support (refer to VXLAN Network with MP-BGP EVPN Control Plane for more information). ◦ Industry leading Software Defined Networking Solution Cisco ACI ™ support. The Cisco Nexus 9300-EX series provide the following features and benefits: Organizations can also deploy the infrastructure that is ready to support the Cisco Application Centric Infrastructure (Cisco ACI ™) platform to take full advantage of an automated, policy-based, systems-management approach (ACI mode). Organizations can use Cisco NX-OS Software to deploy the switches in standard Cisco Nexus switch environments (NX-OS mode). The platforms provide investment protection for customers, delivering large buffers, highly flexible Layer 2 and Layer 3 scalability, and performance to meet the changing needs of virtualized data centers and automated cloud environments.Ĭisco provides two modes of operation for Cisco Nexus 9000 Series Switches. The platform is built on modern system architecture designed to provide high performance and meet the evolving needs of highly scalable data centers and growing enterprises.Ĭisco Nexus 9300-EX series switches offer a variety of interface options to transparently migrate existing data centers from 100-Mbps, 1-Gbps, and 10-Gbps speeds to 25-Gbps at the server, and from 10- and 40-Gbps speeds to 50- and 100-Gbps at the aggregation layer. The platform support cost-effective cloud-scale deployments, an increased number of endpoints, and cloud services. The Cisco Nexus ® 9300-EX Series switches belongs to the fixed Cisco Nexus 9000 platform based on Cisco Cloud Scale technology. ![]()
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