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Questions tagged [cisco-nexus]

47 questions
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About 4x10G SFP+ <--> QSFP breakout cable

I have my very first Nexus switch to install in our new datacenter. It's a 3172TQ that comes with 4 QSFP+ ports. All my other devices have SFP+ modules. I did a little research and i found about the QSFP-SFP+ breakout cable. My question is: Can I…
ujemvi
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LACP bond work intermittently on Cisco N5000

Our clients are using Centos 7.1 and 7.3. They are two 10GB card bonded to make a 20GB link. Each of the network card is connected to a pair of Cisco N5000 switch. While running cp or iperf, I can see that sometimes the traffic only flows through…
lbanz
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Nexus 1000v Port Channel to Virtual Machine

Is it possible to setup a Port-Channel between a Nexus 1000v Switch and a ESX Virtual Machine? Context: I am running a Checkpoint Firewall cluster as Virtual Machines on an ESX server. I want to configure a Bond interface on the Firewall cluster…
zardoza
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Cisco Nexus 7000 Multicast IGMP Snooping enabled - packets got to all interfaces

I have connected three servers to Cisco Nexus 7000 switch. Server1 send multicast packets, server2 subscribes to multicast packets and server3 is for the tests. No matter if I subscribe to multicast from server2 or not all interfaces are flooded by…
killdaclick
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LACP - Up Sngl-port-Bndl Mstr Not-in-Bndl

I setup a port channel between two Cisco switches, a 6509 running ios 12.2(17r)S4 and a 5596 running nx-os 5.2(1)N1(4). Several issues arose including bad patches and broken cables, but I currently have two active links in the port channel to work…
fishpen0
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How to terminate any ip/ip tunnel which has this host as destination

I am in a situation where I want to terminate any tunnels at one device. I.e. I want to be able to create a tunnel to this device from any source ip adress. Something which can inspect a packet, see that it is a tunnel (IP-in-IP or GRE works fine…
Erik Henriksson
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How can I prevent myself from being automatically logged out of a cisco nexus switch because of inactivity

Is there a way where I can prevent myself from being logged out of a cisco nexus switch/router (or any other cisco device) after a period of inactivity? I get this message after being kicked off: Inactive timeout reached, logging out. I have the…
lacrosse1991
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Cisco MOTD from external source

Is it possible to have the MOTD Banner set from an external source while maintaining a hard coded value (if present)? Possibly like a TFTP server? Only way I have ever seen this done is via it being explicitly set through the command line. EDIT:…
Jared
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Is Cisco Misquoting the Nexus 7000 specs

Looking at the following image: http://blogs.cisco.com/wp-content/uploads/7000-family-550x358.png Cisco is quoting the 7009 as having a 10GigE density of 336 and a backplane bandwidth of 550G/slot. The only way to get 550Gig/Slot is to have 5 FAB…
random3458sfd
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How do I get past “SFP Validation Failed” on a FET-10G transceiver on a Nexus 5548UP?

I inserted a FET-10G (Fabric Extender Transceiver) SFP transceiver in my Nexus 5548UP and I got "access down" "SFP Validation Failed" in show interface. FET-10Gs came with my 2232's so I figured they'd be plug and play. This is with a blank port…
Alain O'Dea
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Will an iSCSI SAN perform well when connected to a 2232PP fabric extender?

I intend to rack up servers and iSCSI SANs and connect them to 2232PPs that are fabric extenders uplinked to 5548UPs on a distribution rack. Will an iSCSI SAN perform well when connected to a 2232PP fabric extender? Are there any special steps I…
Alain O'Dea
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Are all SFP+ tranceivers usable for FEX between Nexus 5000 and Nexus 2000?

I am looking at building a network with Nexus 5000 parent switches and Nexus 2000 fabric extenders. The mystery at the moment is what kind of SFP+ tranceivers are required for cross-connecting racks. Right now I am considering FET-10G, but I am not…
Alain O'Dea
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Port Mapping - Dell FX2s Chassis with Cisco Nexus\FEX Switches

having some trouble with doing remote port mapping with dell FX2s chassis and fc430 blades\sleds. the goal is to figure out what are the ports in nexus switches\cisco fex that the dell chassis 10Gb sfp+ is connected to. as someone is familiar with…
Itais
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Is It Possible to configure shaping on Nexus 3064 wtih NX-OS v.6

Is there any can give a solution about how Nexus 3064 could be configured QoS or shaping on their interface? I'd trying use some policy-map but still doesn't working.
Dananjaya Risang
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initial cisco nexus setup without serial cable

I've never used a cisco switch. On the used 3048t i just got, there's a dedicated management ethernet port on the back, so i was blindly assuming it would just accept a dhcp address and give me ssh, telnet or at least a webinterface. It does send…
aep
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