The idea is that they extend the switching fabric of a nexus 5000 or 7000 the 7000 is a chassis. One peer learns an address sends it to every one else. Cisco ucs and nexus 9000 switch infrastructure 1 executive summary enterprise data centers are already realizing the tremendous benefits of server and storage virtualization solutions to consolidate infrastructure, reduce operational complexity, and dynamically scale application infrastructure. Cisco nexus 2300 platform fabric extenders product overview. The following example shows how to configure the peer switches in the vpc topology for the dualhomed fex. Cisco nexus 2000 series nxos fabric extender configuration. A fabric extender, the term marketed by cisco, is basically a port extender as it is referenced in the developing ieee 802. All learned address tables are kept synchronized among peers. Understanding cisco nexus 2000 series fabric extenders. The most challenging and important part of it is the planning and design phases where different technical variables and technologies need to be considered that could even effect the product selection and the design entirely. The cisco nexus 5600 series switch with 2000 series fabric extenders toe are data center switches that support 10 gigabit ethernet on all ports while maintaining consistent low latency.
The cisco nexus b22 fabric extender behaves like a remote line card for a parent cisco nexus switch, together forming a distributed modular system. The third device can be a cisco nexus 2000 series fabric extender or a switch, server, or any other networking device. The lab design architecture components used in this document are. Cisco ucs and nexus 9000 switch infrastructure 1 executive summary enterprise data centers are already realizing the tremendous benefits of server and storage virtualization solutions to consolidate infrastructure, reduce operational complexity, and. In this topology, servers would be dual homed to multiple fex. Ethernet fabric extender for workloads such as largevolume databases, distributed storage, and video editing. There seems to be some confusion on what the supported nexus 70005000 fex topologies are. Configuring cisco nexus 5020 and 2224 fabric extenders for. Cisco data center architectures for cloud computing. Cisco nexus 20005000 vpc design options anas tarsha. Fex topologies for nexus bacon, overlays and virtualization. Techniques are provided to prevent switches in a data center fabric path environment with fabric path extension devices from media access control mac address flooding and mac address table overflow. Cisco nexus 50007000 fex topologies jeremy waldrops blog.
Apr 10, 2019 the document describes the various topologies supported when the nexus 2000 fabric extender switches fex used when it is connected to the parent switches or to the end hosts. The following topologies are valid for these nxos versions. In this post im going to discuss supported vpc topologies for the nexus series. Use of the virtual portchannel vpc feature allows fast convergence and. What is enhanced vpc enhanced vpc is technology that supports the topology where a cisco nexus 2000 fabric extender fex is dualhomed to a pair of cisco nexus 5500 series devices while the hosts are also dualhomed to a pair of fexs using a vpc. A vpc peerlink is used to share vpc status information between the 5020s. Flexpod datacenter technical specifications tr4036. Ccna data center dcict 640916 official cert guide cisco press. The fex, unlike a traditional switch, has no capability to store a forwarding table or run any control plane protocols. Building a campus network is more than only interconnecting physical network infrastructure devices. It assumes that you know how to add a cisco nexus 2000 fabric extender to its parent cisco nexus 5000 series switch in a single homed vpc topology. For virtual portchannel vpc configurations, only 480 server ports out of 576 ports could be used.
Dual layer is a reference to the vpc configured between the 5500 and the fexes and then from the fexes to the end device. Supporting a large server domain under one management entity allows policy to be enforced more efficiently. A fex has no management interface, but instead has to be connected to a nexus 5000 or 7000, after which it becomes a logical part. Us569,224 20120808 20120808 scalable media access control protocol synchronization techniques for fabric extender based emulated switch deployments active 20321201 us8855117b2 en priority applications 1. Dears, please find the attached state of a fex nexus. Ccna data center dcict 640916 official cert guide from cisco press enables you to succeed on the exam the first time and is the only selfstudy resource approved by cisco. There are configuration samples at the following urls. A fex has no management interface, but instead has to be connected to a nexus 5000 or 7000, after which it becomes a logical part of that parent switch. Use of a single management entity to support a large server domain allows policy to be enforced more efficiently and enhances layer 2 data center access scalability. This architecture enables physical topologies with the flexibility and benefits of both topofrack tor and endofrow eor deployments. Cisco nexus 2224tp ge, 2248tp ge, 2248tpe ge, 2232tm 10ge, 2232tme 10ge, 2232pp 10ge, and 2248pq 10ge. Cisco nexus 2000 series fabric extenders fex behave and can be considered as remote line cards for cisco nexus switches. Im going to start with the nexus 20005000 now and will add a separate post for the nexus 20007000 options later. Cisco nexus b22 fabric extender for flex system product guide.
It relies on its parent 50007000 to perform those functions. Jul 20, 2012 there is a major topology restriction with vpc when using the nexus 2000 series fabric extender fex in conjunction with the 5. Information about using a fabric extender with a cisco nexus 7000 series switch you can extend the cisco nexus 7000 series switch architecture by connecting up to 32 fexs as remote io modules. Depending on which fex model that you connect to the switch, the fex provides topoftherack connectivity for up to 48, 32, or 24 hosts, and it becomes. Aug 28, 2012 a fabric extender fex for short is a companion to a nexus 5000 or nexus 7000 switch. Feb 04, 2012 the idea is that they extend the switching fabric of a nexus 5000 or 7000 the 7000 is a chassis. The toe is comprised of the nexus 5600 series switches which include the 5600 models. Cisco nexus 2000 series fabric extenders from bottom right to top left. The fabric extenders are available in several models to provide speed, connectivity, and portdensity options figure 2. Cisco nexus 5600 series switch with 2000 series fabric. The following example shows how to configure the peer switches in the switch vpc topology and the. In a topology where both vpc peer switches have equal costs to the source, the vpc primary switch wins the assert and forwards multicast traffic for receivers. The links between the 5020 devices will be configured as a regular port channel and will act as a vpc peerlink. If the cisco nexus 5500 platform is used in conjunction with the layer 3 engine, at the time of this writing cisco nxos 5.
A team of leading cisco data center experts shares preparation hints and testtaking tips, helping you identify areas of weakness and improve both your conceptual knowledge. The fabric extender acts as an extension to the parent cisco nexus switch fabric. Lets here assume that the vpc basics and the connection to the fex have been configured. Cisco nexus b22 fabric extender for flex system product. Nexus fabric extender 2000 series to its parent cisco nexus 5000 series switch. The vpc peer link allows traffic necessary for vpc functions to flow between the vpc peers. Cisco vpc a virtual portchannel vpc allows links that are physically connected to two different cisco nexus 5000 series devices to appear as a single port channel to a third device. Cisco nexus b22hp fex deployment guide unified networking. Dell networking and cisco spanning tree interoperability. Jun 29, 2012 having said that they are several ways to connect the cisco nexus fabric extender fex to its parent the nexus 5000 or 7000 switch. Page 4 configuring a host interface in a vpc topology connected to two fexs dualhoming of a server to a fex with fabricpath verifying the configuration verifying the fabric extender configuration verifying the chassis management information additional references related documents feature history cisco nexus 2000 series nxos fabric extender.
Adapterfex and fcoe fabric extenders in vpc topology 528. Data center access design with cisco nexus 5000 series. Us8855117b2 scalable media access control protocol. The first section deals with the supported nexus 50005500 fex topologies. This topology superposes two layers of vpc domain and the. May 16, 2012 a fabric extender, the term marketed by cisco, is basically a port extender as it is referenced in the developing ieee 802. In this topology, a server would be connected to a single fex, but could be multihomed to a 2nd fex. The cisco nexus 2300 platform is suitable for highly virtualized. A vpc domain is similar in principle to a vtp domain in that devices in the same domain can share status information and configurations.
Cisco nexus 2300 platform fabric extenders data sheet. In a vpc topology, when a receiver is connected to a cisco nexus 5500 platform switch or fabric extender fex via vpc, both peer switches initiate a pim s,g join toward the source dr. The fabric extenders are essentially extensions of the parent cisco nexus switch fabric, with the fabric extenders and the parent cisco nexus switch together forming a distributed modular system. Us20140044126a1 scalable media access control protocol. The next section will show the nexus 7000 fex topologies. Ensure that the vpc role priority of the replacement switch is equal to the existing swtch. B22 fabric extender connectivity topology virtual link aggregation. The cisco nexus 2000 series fabric extenders fex comprise a category of data center products designed to simplify data center access architecture and ope. Ethernet4 ethernet414 ethernet415 ethernet416 max number of trees.
In a nonvpc topology, only the designated router dr can join the source tree. The cisco nexus b22dell blade fabric extender is designed to simplify data center server access architecture and operations in environments in which thirdparty blade servers are used. It seems that cisco hasnt completed ticked off hp with their ucs line of servers, because they were able to collaborate on a fabric extender for the hp cseries chassis, the nexus b22hp. Having said that they are several ways to connect the cisco nexus fabric extender fex to its parent the nexus 5000 or 7000 switch. The fex is owned by the both n5k switches so the serverfacing interface configuration needs to exist on both switches. N2k fabric extender fex acts as a remote line card of a 7k or 5k switch.
Ccna data center dcict 640916 official cert guide book. Cisco nexus 5000 series operation manual pdf download. To enter this mode, input vpc domain followed by your vpc domain number. Production environments can include cisco fabric extender technology fex switches that have already been installed for a legacy environment involving many network devices. Single homed fabric extender vpc topology you can connect a server with dual interfaces that are configured in a vpc to a pair of cisco nexus 2000 series fabric extenders that you then connect single homed to the cisco nexus 5000 series switches. Flexpod datacenter technical specifications scott kovacs, sree lakshmi lanka, and arvind ramakrishnan, netapp april 2020 tr4036 abstract the flexpod platform is a predesigned, best practice data center architecture that is built on the cisco unified computing system cisco ucs, the cisco nexus family of switches, and. The cisco nexus b22 fabric extender for flex system is shown in the following figure. Pimssm source specific multicast and pim bidir bidirectional are not supported with vpc. As the name implies, the fex extends the fabric ie, the network out. Nexus 2000 fabric extenders supportedunsupported topologies. Feature command associating a fex to an ether channelinterface disassociating a fabric extender from an interface configuring the fabric extender displaying configuration information fex port vlan. Each fex is has multiple links to a pair of 5k switches in the same vpc domain, and a single vpc portchannel is configured down to the fex. Aug 27, 2014 cisco nexus b22hp fex deployment guide.
Cisco nexus 2000 series fabric extenders data sheet. Obtain the configuration from the peer switch if the configuration synchronization feature was enabled. It seems that cisco hasnt completed ticked off hp with their ucs line of servers, because they were able to collaborate on a fabric extender for the hp cseries chassis, the nexus b22hp a fabric extender is a cisco nexus switch typically a nexus 2000 that is managed via an upstream nexus 5500 switch. In this loopfree topology, aggregation is split between two physical switches, which appear as a single logical switch, and each cisco nexus b22 fabric extender for flex system is connected to both tor switches through static or etherchannel aggregated links.
A fabric extender is a cisco nexus switch typically a nexus 2000 that is managed via an upstream nexus 5500 switch. In such an environment, endpoints associated with virtual port channels are connected to multiple switches which normally would perform mac address flooding across. Connect a dualhomed fabric extender topology fabric port to the replacement switch. Network design considerations abstract this white paper explains design considerations of the dell emc isilon external network to ensure maximum performance and an optimal user experience.
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