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. To configure a span for all traffic to and from a downstream switch on port 52 using a cisco nexus 5000 span 1. How to configure vpc virtual port channel on nexus switches. How to set up cisco nexus fabric extender network computing. Creating portchannel with n5k in order to add a newinterface to a portchannel, existing portchannel had to be removed from vlan, then add the port to the portchannel and. I also use a baset sfp transceiver to convert the dell s4810 fiber port to copper, so i can connect it to the management port of the cisco nexus. Mar 29, 2012 all interface configuration is performed on the nexus 5000, where every attached nexus 2000 is treated as an individual slot. One of the strict guidelines is to begin enabling ethernet ports at the first port 11 and in the case of fiber channel begin at the last port of the module and work backwards. Port channel 102 should be configured as an access port in vlan 10, an stp edge port, and as vpc 102.
Basic configuration this weeks post will cover basic information gathering and configuration of cisco nexus switches. Span sources refer to the interfaces from which traffic can be monitored. We have nexus 7009 switch and want to configure the span session we are using f2 and m2 card both are in seperate differeent vdc. Span ports work by sending a copy of the traffic destined to one or more ports or vlans to another port on the switch that has been connected to a network traffic analysis or security device. For these switch models, you need to get to the devices operating system and issue a command in order to specify the span port and the port to monitor. Creating portchannel on nexus 5k life as a network. Span section of the cisco nexus 5000 series nxos software configuration. These will connect to cisco nexus 5020 upstream switches. Cisco configuring the catalyst switched port analyzer span.
For example, port 8 on fex 101 is referred to as ethernet10118 on the 5000. How to span a port on a nexus 9k i came across a need where i had to create a monitor session across a vpc across two nexus 9ks. My destination devices dont reside on the same switch as the source port. So i needed a couple of sfps as the only way to connect the 5k to the 2k is a fet10g sfp along with that was some multimode fiber om3 with lc connectors. Ill call the higher switch in the rack the top5k, and the one below is bottom5k. The virtual port channel vpc peer switch feature addresses performance.
Two of the fex uplinks will homed to one 5k, and two to the other 5k. I experienced the same problem with status inactive ports when i had to connect 2 pairs of nexus 5k s with. How do i change the port or address that nexus binds to. Span port configurations vary depending upon device and software version. This is the most comprehensive, yet straightforward, course for the cisco nexus training on udemy you probably have heard the word datacenter or cisco nexus in your career. When i started out, we didnt have snmp v3 support in the modular input, so i went. If you have redundant core switches, you should use a vpc for the uplinks. Erspan on the nexus 5xxx the rants of a data center.
The remainder of this example assumes a dualhomed fex using all four uplinks, connected to a nexus 5500 pair configured in a virtual port channel domain. Cisco suggests using switch profiles for the following reasons. Although the information on copying and adding licenses to a nexus 5500 is available at. Span on the catalyst 4000, 5000, and 6000 series switches running catos. Cisco intelligent traffic director itd is a hardware based multiterabit layer 4 loadbalancing and traffic steering solution on the nexus 5k 6k7k9k series of switches. Dec 01, 20 connecting fex 5k to 2k posted on december 1, 20 september 10, 2014 by ryan i was pretty excited to get my hands on some of the cisco nexus product line which focuses on switching in the data center. Virtual device contexts vdcs introduction to cisco nxos. Is it unlikely that a nexus 9k would support span and erspan, but not rspan. Two nexus 5k in vpc need to create lacp link to server.
Configuring span cisco nexus 5000 series switches cisco. Whether youre looking at the cisco nexus 5000 line for the unified fabric feature, the 1. In particular to your question, the n9k deployment guide talks about span and erspan, but makes no reference to rspan. Configure activeactive nic teaming on server 1 and server 2 as follows. However some switch vendors may instead refer to this as a span port, network monitor, interface monitor or port monitor. Dec 08, 2014 i have ine aap and ine workbook to backup the learnings. Span ports are commonly used for network traffic analysis applications. So for my benefit, and perhaps yours, heres my short and sweet version of how to configure span on a nexus 5k. Allows configurations to be synchronized between switches.
The cisco nexus 5000 series switch supports ethernet, fibre channel, virtual fibre channel, port channels, san port channels, vlans, and vsans as span sources. May 07, 2019 cisco nexus 5000 series nxos software configuration guide. I decided to test setting switch profiles up to provide a single point of configuration change for our bowtie setup nexus 5548s and 2232 fex. Aug 11, 2016 setting up span ports on cisco nexus switches. Can a switch only do two types of span, but not a third. So effectively i needed to setup port mirroring from a physical network port to a vmware esxi virtual machine. Cisco nexus 5000 series vpc design and configuration. I was recently watching a cisco video on the architecture of the nexus 5000 series switches brkarc3452, and learned something pretty surprising. Base config nexus 5k 2k it tips for systems and network. I figured it would be something like the ios where i could configure both 5ks via one cli, but it appears this is not the case. In these situations, its important for the probe to have support for a remote span.
Cisco rise integrates citrix netscaler as a service module within the cisco nexus 7000, 7700, 5k,6k switch, even though it remains a physically separate device. Cisco nexus 5000 series vpc design and configuration paul. From the switch cli, enter configuration mode to set up a monitor session. Cisco nexus 5000 series switch cli software configuration guide. Provides an import command to migrate existing vpc configurations to a switch profile. I would like to make the esxi 6 host with 2 10gb interface connect to both nexus 5000 switch, with both active link on vswitch may i verify the configuration on nexus 5000 switch. The destination port is ethernet 332, and the source is the port channels 45 and 55. In this scenario, if you do not enable preprovisioning, a commit fails and the configuration is. Our network guy says this is why a change cant go through, but that seems unlikely. So we had to figure out how fcoe worked on the nexus switches and get it working asap. May 24, 2016 how to configure vpc virtual port channel on nexus switches this video goes over the fundamentals of how to configure vpc virtual port channel between two nexus switches.
Configuring an erspan within vmware and cisco switches. Become a datacenter engineer and learn one of employers most request skills of 2019. 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. I needed to capture all traffic from a particular network port an ip phone system connected to a cisco sg300 switch and mirror this data to a virtual machine in our virtual infrastructure. I want to use both of them to connect to a server with lacp activeactive. When connecting to non nexus switches such as a catalyst 6500 series switch use the spanningtree port type normal command. The third device can be a switch, server, or any other. How to configure span on a nexus 55xx virtuallymikebrown. Hi, any one knows, how to configure local span and remote span in nexus 5k switches.
Customer want me to defined a span port on n2k, it is a fex port. The cisco nexus 7000 series also support python v2. Cisco nexus fabric extender aa topologies where the fabric extenders might not be online on one switch and its configuration is changed and synchronized on the other switch. The cisco nexus 5000 series switches with releases 5. In this example i use my cisco 2940 and some mirror commands to capture data from my dlink ata. Ive question about vpc setting for esxi 6 standard vswitch. Refer to understanding primary, isolated, and community private vlans in the cisco nexus 5000 series nxos software configuration guide for more information about the use of pvlans as a security tool. I was annoyed that i had to look at the same document and skip over all the paragraphs to get to the commands, then sort out the fc ports and other commands i didnt need. The port mirroring setup will not store or analyze the traffic. Nov 24, 2016 ive 2 cisco nexus 5000 and formed vpc in between. Apr 29, 20 nexus switches nexus cheat sheet nexus is one of the dominant switches in data centers, most companies already rolled out nexus switches like 7k, 5k and fabric extender 2k.
How to setup span ports on cisco nexus switches netfort. Mar 11, 2015 nexus 5000 series up switches have the option of either enabling individual ports as ethernet or fibre channel ports. Im bringing up a new pair of nexus 5500s running nxos 5. And out server is connected to m2 card on eth 46 and want to monitor the traffic from vlan 161which is made on f2 card. Server load balancing with nat, using nexus switches. If one interface is declared dedicated 10g wirerate to fabric, the other 3 interfaces of the bank are inactive as well april 19, 20 at 10. Destination is nexus 5k interface i hope we can not configure fex port is destination n5k. Configure a virtual port channel and add physical interfaces.
All of these features are unique in cisco nexus 7000 and cisco nexus 5000. In figure 15, there are two physical nexus 7000 chassis. Configuring the cisco nexus 5000 series for port mirroring. Configure cisco nexus port mirroring so that usm anywhere can recieve events. The continue reading port mirroring from a cisco switch to a virtual. What ever are possible on simulator i shall document the same.
So in this post ill explain how to connect a 5k nexus to a 2k extender. Cscug773 nexus 5k incorrectly programs the span source port. Virtual device contexts vdcs introduction to cisco nx. This was my first opportunity to work with the nexus line of switches whether in production or a lab and thought id post a couple of the differences between ios and nxos. 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.
With vlans or vsans, all supported interfaces in the specified vlan or vsan are included as span sources. Cisco nexus 5500 series nxos system management configuration. Nexus switches simplify load balancing cisco blogs. Jan 25, 2011 base config nexus 5k 2k jon langemak january 25, 2011 january 25, 2011 6 comments on base config nexus 5k 2k so by this point im going to assume that you know the role that nexus 5k and 2k series switches play in the data center. I was recently troubleshooting an hsrp issue with two nexus 5500 switches that both were in the active state. Nexus 5000 series up switches have the option of either enabling individual ports as ethernet or fibre channel ports. In this example i am going to focus on a very simple scenario. Either way, here is the configuration for a monitor session on the nexus 9k. Jan 19, 20 cisco switchingrouting rspan configuration in nexus 7009 switches jan 19, 20. Working with cisco nexus 5k switch profiles netcraftsmen. Cisco nexus 5000 series nxos software configuration guide.
Span can affect production traffic on the nexus 5k if you oversubscribe your span interface lets say you monitor one of your 10g uplink and copy the traffic to a 1g port. Configure the fex 2k modules as discussed, the nexus 5k s use the fex service to connect and manage the 2k modules as fabric extenders. Oct 25, 20 hi customer want me to defined a span port on n2k, it is a fex port. You can use any network analysis software to process the packets that are sent to your device.
If you do want to do load balancing based on ip hash, that requires a port channel, and if youre going to do a link to each fex, thats a a virtual port channel vpc. One of the strict guidelines is to begin enabling ethernet ports at the first port 11 and in the case of fiber channel begin at the. My thinking behind this was emc themselves could not configure this, and left a project i was working on over a week behind schedule due to switch configuration issues. A virtual port channel vpc allows links that are physically connected to two different cisco nexus 7000 series devices to appear as a single port channel to a third device. Merges configurations when connectivity is established between two switches. Connect a vm running a sniffer to the port group 8. Apr, 20 i was annoyed that i had to look at the same document and skip over all the paragraphs to get to the commands, then sort out the fc ports and other commands i didnt need. It is a place where most critical servers and network devices are hosted. These routers are connected to the nexus 5k 2k switches and we need help in port mirroring. Cisco can do whatever they want remember that the 9k is nexus lite there are a lot of features not there. Figure 15 shows the logical segmentation with vdcs on the nexus 7000. Find answers to nexus 5k configuration from the expert community at experts exchange. I noticed that you may not initially be able to set the clock time and date on nexus 5ks.
Youll want to look at the command switchport monitor ratelimit. Refer to configuring private vlans using cisco nxos for more information about configuring pvlans in cisco nxos software. This is a long standing feature enhancement request to allow for easier capturing of traffic for monitoring and analysis as erspan allows you to statically place a network sniffer in the ip topology without having to relocate the sniffer to the local. Configure a span session using the spare vmnics switchport as the span target 9. The following guide describes the neccessary steps to install and configure a pair of cisco nexus v switches to be used in a vsphere cluster.
I experienced the same problem with status inactive ports when i had to connect 2 pairs of nexus 5ks with. Supports configuring and synchronizing port profile configurations. Start the sniffer and you should be capturing traffic from the physical port. Ill be using the 5500 series as my example and covering the basics without getting into features such as fibre channel, vsans and that sort of thing. Nexus 5000 incorrectly programs the span source port. Today we connected two nexus 5k s together using vpc.
To configure a span for all traffic for vlans 1 to 100 using a cisco nexus 5000. The configuration for setting up each of the switches will be slightly different based on the hardware and software version and specific vendor. A common use case is horizontal consolidation to reduce the quantity of physical switches at the data center aggregation layer. There are certain environments where its a requirement, however, and physically impossible to position a probe near a device that we want to port mirror from. The configuration is fully documented with examples in the configuration guide this is the nexus 7000 one, including how to use v3 users with passwords and groups for authorization. In this blog post we explore ways of configuring span on cisco nexus switches. It actually depends on the nxos version running on the switch and hence the switch model. Netfort provides network traffic and security monitoring software for. I thought id share my experiences working with switch profiles on cisco nexus 5000 switches. Compare the release notes of this version as far as i know, previous versions do. Configure span on nexus 5k we are implimenting the sniffer infinistream from netscout on our core routers. Switchport monitor on nexus 5000 can cause packet loss.
Each fex will have a port channel to a single nexus 5k, and wont be cross connected. Dec 21, 2011 ciscos nexus 5000 2000 design guide lays out a number of topology choices for your data center. The cisco nexus vpc technology has been widely deployed and in particular by almost 95% of cisco data centers based on information provided by the cisco live berlin 2016. Questions tagged cisconexus5k network engineering stack. This chapter from the nexus 5000 series switch cli software configuration guide describes how to configure a span port on a nexus 5000 switch.
In addition, virtual port channel was introduced in nxos version 4. The switched port analyzer span feature sometimes called port mirroring or port monitoring selects network traffic for. Port mirroring from a cisco switch to a virtual machine on. Cisco switchingrouting rspan configuration in nexus 7009. After a bit of digging, i found that this is a known big in nx. March 11, 2015 david ring uncategorized 3 comments. On the nexus 5010 5020, enabling switchport monitoring a span session on a port effectively limits its ingress throughput to 6 gbps.
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