In a vpc topology, each cisco nexus 7000 series switch must have some matching parameters. Page 28 the following is an example best practice of a vpc configuration. The following output illustrates the spanningtree topology after the vpc configuration. Cisco nexus 7k design with activeactive fex egroup. This topology can also consist of portchannels with each host connected either with one or more links to each cisco nexus 7000 series. This article introduces the cisco nexus product family nexus 9000, nexus 7000, nexus 5000, nexus 3000, nexus 2000, nexus v and mds 9000. For nexus 7000 series, virtual portchannel vpc is a portchanneling concept that extends link aggregation to two separate physical switches.
Cisco nexus 7000 series nxos fabricpath command reference, release 5. Currently this is a manual process configuration is done separately on. To provide a comprehensive overview we explain where. In this case nic on server must support lacp so that the two fexs appear as a single switch. Cisco ucs and nexus 9000 switch infrastructure technical white paper. You have a lot fewer options when it comes to connecting a fex to a nexus 7000. Fabricpath configuration guide nexus 7000 series bitbin. Configuring backtoback vpcs on cisco nexus switches. The next section will show the nexus 7000 fex topologies.
The cisco nexus 7000 series was introduced in january 2008. Stp topology changes, routing instability, module removal, power interruption, etc. Comprehensive coverage of the cisco nexus switches pdf. Cisco nexus 6000 series leaf switches with cisco nxos 6. Nexus 7000 vpc dual failure testing i recently worked with a customer who experienced an issue in their data center which raised some questions about the vpc failurerecovery scenarios. Cisco nexus 7000 series switches can be segmented into virtual devices based on customer requirements. Provides an endtoend data center architecture on a single platform. The nexus 9000, 7000, 5000 and 3000 series switches take portchannel functionality to the next level by enabling links connected to different devices to aggregate into a single, logical link. The focus of the presentation is on implementation and best practices. We explain the differences between nexus and catalyst switches but also compare commands, naming conventions, hardware capabilities etc. Bringing together content previously spread across multiple sources and cisco press titles, it presents uptotheminute featurelevel and architecturallevel information that is indispensable for troubleshooting nxos software and nexus hardware. Cisco nexus 7000 series nxos interfaces configuration. By default you can have 8 vdc contexts on a nexus 7000, but right now i will just use a few to illustrate what this brings to us.
As a reminder, both vpcs and fabricpath allow all links to forward data. Catalyst 6500 vss nexus 7000 vpc l2 sisi nonvss vss nonvpc vpc l2. It also provides information on how to obtain related documentation. This topology comprises access layer switches dualhomed to the cisco nexus 7000 series with a switch portchannel with gigabit ethernet or 10 gigabit ethernet links. What is the vpc 0f cisco nexus 7000 series, and what are. Cisco nexus 7000 series connectivity solutions for the cisco. Using dualconnected access switches, for example, the cisco nexus 5000 series dual connected to the cisco nexus 7000 series with portchannels. To mitigate some of the risk associated with the manual manipulation of spanningtree timers. All of these features are unique in cisco nexus 7000 and cisco nexus 5000. Cisco nexus 7000 series spine switches with cisco nxos 6.
Nexus7000 vpc best practices and design external network. To disable the peer switch vpc topology, use the no form of this command. The first in the next generation of switch platforms, the cisco nexus 7000 series provides integrated resilience combined with features optimized specifically for the data center for availability, reliability, scalability, and ease of management. Services vdc sandwich two nexus 7000 virtual device contexts used to sandwich services between virtual switching layers layer2 switching in services chassis with transparent services services chassis provides etherchannel capabilities for interaction with vpc vpc running in both vdc pairs to provide etherchannel for both inside and outside. You must be working on the f series module in your cisco nexus 7000 series chassis to use conversational mac learning. To use vdc capability on the cisco nexus 7000 series. With vpc you have to be careful on how you configure your nexus switches. Nexus 5000 16port portchannel support introduced in 4.
Multicast implementation with virtual portchannels and fabricpath carol kavalla, ccsi, ccnp, ccdp introduction the assumption is that the reader has a working understanding of multicast, virtual portchannels vpcs, and fabricpath. In the flexpod topology both cisco ucs fabric interconnects and netapp storage systems are connected to the cisco nexus 7000 switches through vpc. Topology c is called straightthrough vpc in which each nexus 2000 fex is connected to one parent nexus 7000 while the server is dual attached to a pair of nexus 2000. Introduction to cisco nxos 3 nxos supported plaorms f t an nxos data centerclass operating system, designed for maximum scalability and application availability, has a wide variety of platform support, including the following. Oct 04, 2012 nexus 7000 vpc dual failure testing i recently worked with a customer who experienced an issue in their data center which raised some questions about the vpc failurerecovery scenarios. The first section deals with the supported nexus 50005500 fex topologies.
Hp virtual connect flex10 and nexus vpc virtual portchannel configuration this paper will outline the steps to configure the virtual connect flex10 modules and cisco nexus 50007000 series switches as a virtual portchannel. Nov 28, 2017 cisco nexus 7000 series switches some links below may open a new browser cisco nexus 7000 series nxos fabricpath configuration guide cisco 7 aug 2017 conversational mac address learning. In a very high level explanation, this switch is a switchport module in a separate 1u chassis, which is configured and controlled from a nexus 50007000. The official study guide helps you master topics on the ccna data center dcict 640916 exam, including cisco data center concepts. The cisco nexus 7000 vpc manages loosely coupled independent control planes between the. The picture above hows the supported vpc topology for the nexus 7000. The root cause of the outage was a self inflicted configuration issue but the customer still wanted an answer to why the environment didnt recover and restore. Figure 21 illustrates the supported vpc topologies. The two cisco nexus 7000 switches at the core are acting as a layer 2 and layer 3 boundary. Spanning tree protocol are fully supported in a vpc topology. The following topologies are valid for these nxos versions. Only 2 peer devices max can be part of same vpc domain. Add virtualization software that works on your existing cisco ucs fabric interconnects and nexus switches, or any other infrastructure.
Jun 29, 2012 the picture above hows the supported vpc topologies for the nexus 5000. With vpc you have to be careful on how you configure your nexus switches for instance vpc doesnt create a single control plane like vss does you would have to configure both northbound switches in a vpc pair with the same. Implement flexible, efficient lispbased overlays for cloud, data center, and enterprise the lisp overlay network helps organizations provide seamless connectivity to devices and. Hp virtual connect ethernet modules will work seamlessly with cisco nexus infrastructures and this new network design. Vdcs offer several benefits such as fault isolation, administration plane, separation of data traffic, and enhanced. Per cisco, after configuring the vpcs, the two cisco nexus 7000 series switches appear as a single switching device from a spanningtree perspective remember that the vpc primary is the cisco nexus 7000 series switch that processes bpdus. Fcoe, multihop, vifs, fex, and setup storage networking. Cisco nexus 7000 series nxos fabricpath command reference. On the cisco nexus 7000, one must also make sure the members are part of the same vpc id. Introduction vpc autorecovery feature in nexus 7000. I have a question regarding vpc and multiple pairs of nexus 5000s connected to a pair of nexus 7000s. Figure 21 nexus 2000 supported vpc topologies e117 e129. Cisco nexus switch has features such as vdc virtual device contexts, vpc virtual port channel, fabric path, fex, otv, checkpoint and rollback, trustsec, etherealwireshark and many more. Nxos is the operating system used in nexus devices.
Cisco nexus 50007000 fex topologies jeremy waldrops blog. Cisco nexus 7000 series configuration manual pdf download. Data center aggregation layer design and configuration. Nexus 7k getting started examples part1 basics, vdc and vpc. The activeactive design allows us to connect serversstoragedevices to a single fex, and utilize the fexs portchannels to each parent switch to provide redundancy. Data center design with cisco nexus switches and virtual. Everything you wanted to know about data center design but did not know who to ask duration. Topology c is called straightthrough vpc in which each nexus 2000 fex is connected to one parent nexus 5000 while server is dualhomed. Flexpod datacenter technical specifications tr4036. Cisco nexus 7000 series connectivity solutions for the. As with vlans, these protocols are features and you will need to enable the one that you want to use.
Implementation with virtual portchannels and fabricpath. Spanning tree design guidelines for cisco nxos software and. Why do we need vpc autorecovery there were two main reasons for this vpc enhancement. Dec 21, 2011 ciscos nexus 5000 2000 design guide lays out a number of topology choices for your data center. There seems to be some confusion on what the supported nexus 70005000 fex topologies are. Occasionally, only one of the peers can be restored. In a very high level explanation, this switch is a switchport module in a separate 1u chassis, which is configured and controlled from a nexus 5000 7000. Introduction to cisco nexus switches nexus product family. In figure 2, the mec is a single etherchannel that is being formed between the vpc and the cisco catalyst 6500 pairs. The peer switches run a control protocol that synchronizes the state of the port channel and maintains it.
A nexus 7000 without vpc supports 4k vlans on trunks. This pdf is about comprehensive coverage of the cisco nexus. Cisco nexus switching nextgeneration data center architectures kevin corbin, ccie no. A vpc deployment with a single cisco nexus 7000 series m2xp12 module or m108xp12 module, where the l3 core uplinks and vpc peerlink interfaces are localized on the same module, is vulnerable to access layer isolation if the 10gbps module fails on the primary vpc vpc member ports are defined on both 1gbps line cards and on 10gbps line. This new support will allow vpc traffic through both the active and standby hsrp router.
The session starts with a brief introduction to the nexus 7000 hardware components. The nexus 7000 series of switches implements storeand forward switching. Remote integrated service engine for citrix netscaler appliances. What is the vpc 0f cisco nexus 7000 series, and what are its. The packet forwarding for mec and vpc has been enhanced to efficiently forward traffic locally on each switch.
Nexus 7000 in core and aggregation, nexus 5000 and nexus 2000 in access layer implement vpc doublesided vpc to eliminate l2 loops two different vpc redundancy models can be utilized to support activeactive or activestandby server connections l2 l3 l3. In a data center outage or power outage, both vpc peers comprising of nexus 7000 switches are down. Page 39 portchannel vpc allowing links that are physically connected to two different cisco nexus 7000 series devices to appear as a single portchannel to a third device. Hp virtual connect flex10 and nexus vpc virtual portchannel. Allows the creation of resilient layer 2 topologies based on link aggregation. This is for the example where each pair of nexus 5000s have four uplinks, two connected to each nexus 7000, and both sides of this fourlink connection are configured as a vpc, so it looks like one portchannel connection between the n5k pair and the n7k pair, consisting of four links. Configuring nexus 2000 using static pinning this section demonstrates a basic nexus 2000 configuration using the topology shown in figure 22. Vss nexus 7000 vpc l2 sisi nonvss vss nonvpc vpc l2. You can use a vpc consistency check to verify that both cisco nexus 7000 series switches have the same configuration type 1 or type 2. Cisco nexus 7000 series nxos interfaces command reference.
Jun 30, 2011 all of the nexus 50005500 supported topologies in one image. Example 21 demonstrates how to configure nexus 2000 to 5000 connectivity using two uplinks in. When using the cisco nexus 7000 series in vpc mode, several topologies become possible, including the following. Example 21 demonstrates how to configure nexus 2000 to 5000 connectivity using two uplinks in static pinning mode. This is todays best single source for the techniques you need to troubleshoot problems with cisco nexus switches running the nxos operating system.
View and download cisco nexus 7000 series configuration manual online. Nxos and cisco nexus switching, second edition, is the definitive guide to applying these breakthrough technologies in realworld environments. Pdf troubleshooting cisco nexus switches and nx os download. Layer 2 support and configurations overview of damn small linux. Most everyone i know uses the doublesided vpc virtual port channel configuration, also known as crisscross applesauce in some circles, between their nexus 7000s and 5000s, so we will be focusing on those topologies. With vpc topologies, this advantage is not applicable. This topology can also consist of portchannels with each host connected either with one or more links. Ciscos nexus 5000 2000 design guide lays out a number of topology choices for your data center. Stp topology changes, routing instability, module removal, power. It is not possible to configure vpc on a pair of switches consisting of a nexus 7000 series and a nexus 5000 series switch.
Pdf troubleshooting cisco nexus switches and nx os. Introduction to cisco nexus switches nexus product. Cisco virtual device context vdc on nexus 7000 first command vdc tinyvdc in global configuration mode will created the vdc that i called tinyvfc. The complete guide to lisp implementation on iosxe, iosxr, and nxos. You must save this setting in the startup configuration. Cisco nexus 7000 series switches some links below may open a new browser cisco nexus 7000 series nxos fabricpath configuration guide cisco 7 aug 2017 conversational mac address learning. The picture above hows the supported vpc topologies for the nexus 5000. This topology consists of onerack unit 1ru or 2ru devices at the top or bottom of each server rack, providing server or blade server connectivity within each rack and aggregated by a switch at the aggregation layer. The vpc peers must run the same nxos version except during the nondisruptive upgrade, that is, inservice software upgrade issu. The following figure shows the topology for a vpc indirect mode deployment. This extensively updated edition contains five new chapters addressing a wide range of new technologies, including fabricpath, otv, ipv6, qos, vsg, multihop fcoe, lisp, mpls, layer 3 on nexus 5000.
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