There seems to be some confusion on what the supported nexus 70005000 fex topologies are. Cisco nexus 7000 series nxos interfaces configuration. Flexpod datacenter technical specifications tr4036. You must be working on the f series module in your cisco nexus 7000 series chassis to use conversational mac learning. To disable the peer switch vpc topology, use the no form of this command. 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. Why do we need vpc autorecovery there were two main reasons for this vpc enhancement. 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. Pdf troubleshooting cisco nexus switches and nx os. 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. Dseries n7000 line cards will also support 16 way active portchannel load balancing, providing for a potential 32 way vpc port channel.
On the cisco nexus 7000, one must also make sure the members are part of the same vpc id. Cisco nexus 50007000 fex topologies jeremy waldrops blog. In figure 2, the mec is a single etherchannel that is being formed between the vpc and the cisco catalyst 6500 pairs. 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. It also provides information on how to obtain related documentation. Remote integrated service engine for citrix netscaler appliances. Data center aggregation layer design and configuration. Cisco nexus 7000 series connectivity solutions for the. The complete guide to lisp implementation on iosxe, iosxr, and nxos.
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. Only 2 peer devices max can be part of same vpc domain. This is todays best single source for the techniques you need to troubleshoot problems with cisco nexus switches running the nxos operating system. 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. Stp topology changes, routing instability, module removal, power interruption, etc. The peer switches run a control protocol that synchronizes the state of the port channel and maintains it.
Nexus7000 vpc best practices and design external network. 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. Configuring backtoback vpcs on cisco nexus switches. Cisco ucs and nexus 9000 switch infrastructure technical white paper. Catalyst 6500 vss nexus 7000 vpc l2 sisi nonvss vss nonvpc vpc l2. The following topologies are valid for these nxos versions.
This new support will allow vpc traffic through both the active and standby hsrp router. Figure 21 nexus 2000 supported vpc topologies e117 e129. 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. Vdcs offer several benefits such as fault isolation, administration plane, separation of data traffic, and enhanced. In the flexpod topology both cisco ucs fabric interconnects and netapp storage systems are connected to the cisco nexus 7000 switches through vpc. 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. Pdf troubleshooting cisco nexus switches and nx os download. It is not possible to configure vpc on a pair of switches consisting of a nexus 7000 series and a nexus 5000 series switch. Troubleshooting cisco nexus switches and nxos cisco press. You have a lot fewer options when it comes to connecting a fex to a nexus 7000. In this case nic on server must support lacp so that the two fexs appear as a single switch. This topology can also consist of portchannels with each host connected either with one or more links to each cisco nexus 7000 series. Fabricpath configuration guide nexus 7000 series bitbin. 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.
The packet forwarding for mec and vpc has been enhanced to efficiently forward traffic locally on each switch. What is the vpc 0f cisco nexus 7000 series, and what are its. 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. Cisco nexus switching nextgeneration data center architectures kevin corbin, ccie no. Currently this is a manual process configuration is done separately on. Stp topology changes, routing instability, module removal, power. I have a question regarding vpc and multiple pairs of nexus 5000s connected to a pair of nexus 7000s. The official study guide helps you master topics on the ccna data center dcict 640916 exam, including cisco data center concepts. Nxos is the operating system used in nexus devices. The first section deals with the supported nexus 50005500 fex topologies. Introduction vpc autorecovery feature in nexus 7000. 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. With vpc topologies, this advantage is not applicable.
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. Hp virtual connect flex10 and nexus vpc virtual portchannel. Nexus 5000 16port portchannel support introduced in 4. Add virtualization software that works on your existing cisco ucs fabric interconnects and nexus switches, or any other infrastructure. Page 28 the following is an example best practice of a vpc configuration. Cisco nexus 7000 series spine switches with cisco nxos 6.
For nexus 7000 series, virtual portchannel vpc is a portchanneling concept that extends link aggregation to two separate physical switches. Implementation with virtual portchannels and fabricpath. Using dualconnected access switches, for example, the cisco nexus 5000 series dual connected to the cisco nexus 7000 series with portchannels. What is the vpc 0f cisco nexus 7000 series, and what are. 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. Cisco nexus 6000 series leaf switches with cisco nxos 6. Spanning tree protocol are fully supported in a vpc topology. 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. As with vlans, these protocols are features and you will need to enable the one that you want to use. The picture above hows the supported vpc topology for the nexus 7000.
Provides an endtoend data center architecture on a single platform. Configuring nexus 2000 using static pinning this section demonstrates a basic nexus 2000 configuration using the topology shown in figure 22. Figure 21 illustrates the supported vpc topologies. The following figure shows the topology for a vpc indirect mode deployment. The following output illustrates the spanningtree topology after the vpc configuration.
To mitigate some of the risk associated with the manual manipulation of spanningtree timers. Everything you wanted to know about data center design but did not know who to ask duration. With vpc you have to be careful on how you configure your nexus switches. Cisco nexus 7000 series nxos interfaces command reference. To provide a comprehensive overview we explain where. Hp virtual connect ethernet modules will work seamlessly with cisco nexus infrastructures and this new network design. Cisco nexus 7k design with activeactive fex egroup. Cisco nexus 7000 series switches can be segmented into virtual devices based on customer requirements. The picture above hows the supported vpc topologies for the nexus 5000. In a vpc topology, each cisco nexus 7000 series switch must have some matching parameters. The focus of the presentation is on implementation and best practices. The cisco nexus 7000 vpc manages loosely coupled independent control planes between the.
The vpc peers must run the same nxos version except during the nondisruptive upgrade, that is, inservice software upgrade issu. A nexus 7000 without vpc supports 4k vlans on trunks. Cisco nexus 7000 series nxos fabricpath command reference. We explain the differences between nexus and catalyst switches but also compare commands, naming conventions, hardware capabilities etc. Comprehensive coverage of the cisco nexus switches pdf. Cisco nexus 7000 series connectivity solutions for the cisco. This article introduces the cisco nexus product family nexus 9000, nexus 7000, nexus 5000, nexus 3000, nexus 2000, nexus v and mds 9000. The next section will show the nexus 7000 fex topologies. View and download cisco nexus 7000 series configuration manual online. The two cisco nexus 7000 switches at the core are acting as a layer 2 and layer 3 boundary.
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. The session starts with a brief introduction to the nexus 7000 hardware components. Fcoe, multihop, vifs, fex, and setup storage networking. 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. 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.
Best practices for virtual port channels vpc on cisco nexus 7000 series switches. Dec 21, 2011 ciscos nexus 5000 2000 design guide lays out a number of topology choices for your data center. Introduction to cisco nexus switches nexus product family. When using the cisco nexus 7000 series in vpc mode, several topologies become possible, including the following. 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. Occasionally, only one of the peers can be restored. To use vdc capability on the cisco nexus 7000 series. Data center design with cisco nexus switches and virtual. This is mainly due to the more redundant architecture of the nexus 7000 as compared to the nexus 50005500.
Vss nexus 7000 vpc l2 sisi nonvss vss nonvpc vpc l2. 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. Ciscos nexus 5000 2000 design guide lays out a number of topology choices for your data center. 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. 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. 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.
Topology c is called straightthrough vpc in which each nexus 2000 fex is connected to one parent nexus 5000 while server is dualhomed. Nexus 7k getting started examples part1 basics, vdc and vpc. In a data center outage or power outage, both vpc peers comprising of nexus 7000 switches are down. All of these features are unique in cisco nexus 7000 and cisco nexus 5000. 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. The cisco nexus 7000 series was introduced in january 2008. Cisco nexus 7000 series nxos fabricpath command reference, release 5. As a reminder, both vpcs and fabricpath allow all links to forward data. 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. Allows the creation of resilient layer 2 topologies based on link aggregation. Jun 29, 2012 the picture above hows the supported vpc topologies for the nexus 5000. Cisco virtual device context vdc on nexus 7000 first command vdc tinyvdc in global configuration mode will created the vdc that i called tinyvfc. This pdf is about comprehensive coverage of the cisco nexus. Example 21 demonstrates how to configure nexus 2000 to 5000 connectivity using two uplinks in static pinning mode.
Cisco nexus 7000 series configuration manual pdf download. Layer 2 support and configurations overview of damn small linux. Spanning tree design guidelines for cisco nxos software and. The activeactive design allows us to connect serversstoragedevices to a single fex, and utilize the fexs portchannels to each parent switch to provide redundancy. 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 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. 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. This topology can also consist of portchannels with each host connected either with one or more links. The nexus 7000 series of switches implements storeand forward switching. Nxos and cisco nexus switching, second edition, is the definitive guide to applying these breakthrough technologies in realworld environments. Example 21 demonstrates how to configure nexus 2000 to 5000 connectivity using two uplinks in. 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.
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