Figure 21 illustrates the supported vpc topologies. For example, you might have a data center with lots of vlans, and decide that while you are waiting for trill and before you implement fabricpath, you will minimize stp with vpcs. For information about configuring vrfs, see the cisco nexus 7000 series nxos unicast routing configuration guide. Physical port vpcs physical port vpcs are vpcs configured on the physical interface of a vpc peer devices. If both ipv4 and eth distribution are configured for cfs. Modular switches, including the nexus 7000 and 7700 series, deliver a comprehensive cisco nxos feature set and open source programmable tools for sdn deployments. Configuring nexus 2000 using static pinning this section demonstrates a basic nexus 2000 configuration using the topology shown in figure 22. The vulnerability is due to insufficient validation of tcp packets when processed by the cisco fabric services over ip cfsoip feature. Cisco nexus 7000 series configuration manual pdf download. They offer highdensity 10, 40, and 100 gigabit ethernet with application awareness and performance analytics. Cisco nexus 9000 series switches standalone nxos mode fibre.
Igmp vpc incremental sync the igmp vpc incremental sync feature enables routes on the virtual port channel vpc peer to synchronize with other routes while the peer link is being established. Cisco catalyst 6500 vss and cisco nexus 7000 vpc interoperability and best practices introduction the goal of this paper is to allow the end user to understand the interoperability and best practices when connecting multichassis etherchannel mec on the cisco catalyst 6500 virtual switching system vss with a virtual port. Nxos is the operating system used in nexus devices. Since the priorities are the same, all nonvpc connections always forward on the link connected to the nexus 7000 switch with the lower bridge id n7k1 in this example and block on the links connected to the nexus 7000 switch with the higher bridge id n7k2 in this example. Training cisco nexus switching i platinum learning partner top experten.
Troubleshooting svis on cisco nexus switches in a vpc. All of these features are unique in cisco nexus 7000 and cisco nexus 5000. The vpc peers must run the same nxos version except during the nondisruptive upgrade, that is, inservice software upgrade issu. There are 2 nexus 7000 connected with vpc peer link. Cisco nexus 7000 and nexus 7700, these modular switches deliver full nxos features and opensource programmable tools for software defined deployments. Ill create vpc domain 55, and use the management network for the peerkeepalives. At the time of this writing, vpc is implemented on the cisco nexus 7000 and 5000 series platforms with or without the nexus 2000 series fabric extender.
It is very different from ios however, once you start using it, you will notice that it is very easy to operate. Cisco nexus 7000 series nxos cli management best practices guide. Cisco nexus 5000 series vpc design and configuration. Apr 25, 2017 when the other nexus 7000 comes up then we have to again make configuration changes to include the vpc configuration for all vpc. Cisco content hub cisco nexus 7000 series switches. This functionality enables data center engineers to gain the cabling benefits of an inrack switching. At the time of this writing, vpc is implemented on the cisco nexus 7000 and 5000. Deployment of the cisco nexus vpc technology and analysis. See cisco nexus 2000 series fabric extender software configuration guide for cisco nexus 7000 series switches, release 8. 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 card. Rather, layer 3 routed interfaces with ecmp should be configured. Given that in our opinion a majority of cisco ucs deployments are connected to nexus 7000 we wanted to start with this more common design, and not dwell too much in the variables. Cisco nexus 5000 series vpc design and configuration whether youre looking at the cisco nexus 5000 line for the unified fabric feature, the 1.
Cisco nexus 5000 series vpc design and configuration paul. This topology consists of access layer switches dualhomed to the cisco nexus 7000 series with a switch portchannel with gigabit ethernet or 10 gigabit ethernet links. Page 74 cisco support for this feature was introduced on the cisco nexus 7000 apbr nxos series switches. A packet that ingresses the port channel uses one of the. In this example, the upgrade is from cisco nxos release 5. Overview the configuring cisco nexus 7000 switches dcnx7k v3. Cisco nexus 7000 series nxos interfaces configuration. I have this scenario and trying to configure vpc for cisco asa 5585 activestandby nexus vpc config. Cisco nxos software cisco fabric services over ip denial. Nexus 7k getting started examples part1 basics, vdc and vpc. A vulnerability in the cisco fabric services component of cisco nxos software could allow an unauthenticated, remote attacker to cause process crashes, which can result in a denial of service dos condition on an affected system.
Mar 14, 2020 for unicast cores the nexus 7000 series requires cisco nxos release 5. We have to remove all vpc configurations from the portchannel on that nexus 7000 to get the portchannel working. Unequal weight routing is not supported in l3 over vpc. Course ratings are calculated from individual students ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality. Create the network foundation for a nextgeneration unified fabric data center. Mar 29, 2020 hi all, i hope that someone can answer this quick for me. Nov 21, 2018 wireshark nexus 7000 control plane capture in cisco. Data centers are evolving and resiliency is the key for its survival.
Virtual port channel software upgrade technical note cisco. Training cisco nexus switching i konfiguration mit dem nxos. When the other nexus 7000 comes up then we have to again make configuration changes to include the vpc configuration for all vpc. The nexus 5000s have been in service for quite awhile, and vpc appears to work fine with this configuration, so im not sure if its just a best practice to give each nexus 5000 pair a unique vpc domain id, or if its a potential source of problems if they all use the same vpc domain id. Hi guys, i would like to know how to implement hsrp with the following setup. No issu on nexus 7000 with vpc between vdcs on same chassis if you are using multiple vdcs on your nexus 7000 switch and you create vpc between two of them you. The two data center locations are required to be seen as one logical data center. Mar 26, 2020 see cisco nexus 2000 series fabric extender software configuration guide for cisco nexus 7000 series switches, release 8. Dcnx7k details configuring cisco nexus 7000 switches fast.
Each vpc device can be independently managed without any changes to classic management infrastructure and tools. This was my first opportunity to work with the nexus line of switches whether in production or a lab and thought id post. You can also see it from the cisco support community at. The issue is that these servers need to utilize only one its interfaces because the software which is being run on it requires this.
Nov 12, 2017 vpc feature only available in cisco nxos only. Vss is network system virtualization technology that pools multiple cisco catalyst 6500 series switches into one virtualswitch, increasing operational efficiency, boosting nonstop communications, and scaling system bandwidth capacity to 1. Apr 23, 2015 in this scenario, vpc will not come up even for the nexus 7000 which is already up. If the devices are configured as outlined in the vulnerable products section, a possible indicator of compromise would be a relativity low rx input rate, except for the vpc peer link, coupled with a high tx rate for all enabled interfaces on the vpc pair of affected nexus 9000 series switches. Deploying vmware nsx with cisco ucs and nexus 7000 network. Cisco nexus 7000 and nexus 7700 modular switches, the main. That downstream device could be a server, nexus 2000, or any classical ethernet switch. Jun 29, 2012 virtual portchannel vpc allows two links that are connected to two different physical cisco nexus 5000 or 7000 switches to appear to the downstream device as a single portchannel link. Configuring cisco nexus 7000 switches dcnx7k training. Cisco systems introduced the nexus series of switches on january 28, 2008. 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. I got a few interfacesacl rulesets into the process, and decided to paste the configuration for a few of the vlans in shutdown mode into the 7700s, having already nexus 7k vlan interface speed.
Cisco nexus 7000 member ports participating in a single vpc should be. If orphan ports are connected to vpc secondary peer device, they become isolated once peerlink is down. Please make sure both vpc peers have the same l3 routing configuration all the info out there i can find out there suggests this may be a simple advisory syslog message. We checked, and the vpc configuration included the peerswitch command. Troubleshooting cisco nexus switches and nxos cisco press. Configuring vpc virtual port channel with cisco nexus in this scenario, i have two cisco nexus 5548s, two cisco nexus 2248 fexes, and a windows server with 4 ethernet interfaces where two interfaces connect to fex 100 and the other two connect to fex 101. As soon as we configure this command we notice the following logs.
The server has two connections going to the fex on each nexus 7k vpc. Cisco nexus 7000 seriesinservice software upgrade issu. Get highdensity 10, 40, and 100 gigabit ethernet with application awareness, high programmability, and performance analytics. Cisco nexus 7000 series switches create the network foundation for your nextgeneration unified fabric data center. This video provides the process to update issu in cisco nexus 7000 series. Since the priorities are the same, all non vpc connections always forward on the link connected to the nexus 7000 switch with the lower bridge id n7k1 in this example and block on the links connected to the nexus 7000 switch with the higher bridge id n7k2 in this example. Cisco nexus 7000 series nxos interfaces configuration guide 8. This interconnection doubles the adc bandwidth potential without requiring additional cabling. Feb 15, 2016 if the administrator expects to manage layer 3 adjacencies between cisco nexus 7000 and cisco catalyst 6500 vss, vpc is not appropriate for the interconnect with vss. The cisco nexus series switches are modular and fixed port network switches designed for the data center. Suppose vpc configuration done then both nexus behave like a one switch bundle to 2960 switch. Dec 18, 2015 on the cisco nexus 7000 series, the primary vpc peer brings down the svi for vpc vlans for which there is no forwarding vpc member interface. Configuring vpc virtual port channel with cisco nexus.
The modular cisco nexus 7000 and 7700 switches deliver a comprehensive cisco nxos feature set and opensource programmable tools for software defined networking sdn deployments. Apply this same configuration to the other vpc peer device. In nexus 7000 what is use of vpc auto recovery feature. Mar 30, 2020 for information about configuring vrfs, see the cisco nexus 7000 series nxos unicast routing configuration guide.
Remote integrated service engine for citrix netscaler appliances. This vlan for the l3 adjacency should only be forwarded on the peerlink. In above figure both nexus switches connected with each other through vpc and connected with third device which is 2960 network switch. This course covers the key components and procedures you need to know to configure, manage, and troubleshoot the cisco nexus 7000 series switch platform. The two nexus 7000s are configured for ospf and are using an svi associated to a vlan on the peerlink to form the l3 adjacency. The course is for technical decision makers and it. The cisco nexus 7000 vpc manages loosely coupled independent control planes between the vpc peers two vpc peer devices of a single domain. In directattach mode, cisco rise enables the citrix netscalar device to be dualattached to the cisco nexus 7000 series switches using vpc. Define the port channel configuration, the conception of vpc and how to construct and. Cisco nexus 7000 series switches in one site and cisco asr series routers at another site for otv is fully supported.
Cisco nxos software cisco fabric services over ip denial of. This is todays best single source for the techniques you need to troubleshoot problems with cisco nexus switches running the nxos operating system. This topology can also consist of hosts connected with virtual portchannels to each cisco nexus 7000 series switch. This is the second part in a two part post on etherchannel on the nexus 7000. Data centers based on cisco nexus technology can use vpc technology to build redundant loopfree topologies. Cisco nexus virtual port channel vpc is a virtualization technology launched in the mid of 2009 and is supported by the majority of cisco nexus series switches nexus 9000, 7000, 5000 and 3000 series the vpc enables the deployment of a link aggregation from a downstream network device to two individual and independent cisco nxos switches vpc peers. The configuring cisco nexus 7000 switches dcnx7k v3. Layer 2 switching features on cisco nexus 7000 series switches. Lacp configuration and multichassis etherchannel on nexus. The steps for an issu upgrade procedure are as follows. In the first part i covered how to configure vpc on the nexus 7000, here i will cover what it takes to get a remote switch to uplink to the nexus 7000 core switches using vpcmultichassis etherchannel.
So recently i was involved in a project to swap out a nexus core that consisted of nexus 7k chassis with nexus 5k distribution switches in favor of new nexus 9396 models. On the cisco nexus 7000 series, the primary vpc peer brings down the svi for vpc vlans for which there is no forwarding vpc member interface. Ill then create a portchannel between the n5ks, and enable that for vpc peerlinking. Configuring backtoback vpcs on cisco nexus switches. See the cisco nexus 7000 series nxos unicast routing configuration guide, release 4. Deploying vmware nsx with cisco ucs and nexus 7000. It is not possible to configure vpc on a pair of switches consisting of a nexus 7000 series and a nexus 5000 series switch. Cisco nexus 7000 series nxos interfaces configuration guide.
Define the port channel configuration, the conception of vpc and how to construct and troubleshoot vpcs. Recently i was talking to one of my coworkers about connecting backtoback virtual portchannels vpcs from one pair of nexus 7000s to another pair of nexus 7000s or 5000s. The software keeps all traffic that forwards across the vpc peer devices as local traffic. In the first part i covered how to configure vpc on the nexus 7000, here i will cover what it takes to get a remote switch to uplink to the nexus 7000 core switches using vpc multichassis etherchannel. Here is a diagram depicting the layout that we are using. Cisco nexus 7000 series nxos multicast routing configuration. Please make sure both vpc peers have equal link cost configuration cpu utilization could be high due to mcecm process conditions.
Virtual portchannel vpc allows two links that are connected to two different physical cisco nexus 5000 or 7000 switches to appear to the downstream device as a single portchannel link. For unicast cores the nexus 7000 series requires cisco nxos release 5. Nxos softwarearchitektur und nxos im vergleich zum ios. Detailed upgrade process, commands, checkpoints, logs, sup1 sup2 supervisor engines caveats and more. Page 28 the following is an example best practice of a vpc configuration. Best practices for issu inservice software upgrade with vpc. The dcinx introducing cisco nxos switches and fabrics in the data center v1. Nexus nxos inservice software upgrade without downtime. View and download cisco nexus 7000 series configuration manual online. Dcinx introducing cisco nxos switches and fabrics in. There are some differences, such as the case where the nexus 5500 does not have all of the same vpc caveats as the nexus 7000 discussed in this guide. The first chassis in the nexus 7000 family is a 10slot chassis with two.
959 1252 777 475 527 170 192 567 1139 966 484 1277 910 1421 1035 1511 393 559 838 831 1117 896 646 610 247 358 349 1098 1398 1282 309 1099 1345