Questions tagged [cisco-nexus-7k]

For questions about or involving the Cisco Nexus 7000 Series.

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Kill process ARP nexus 7000

We have problems with ARP. It does not show records. So killing the arp process is an option. But there is no documentation of how to do it. You will have the commands. Greetings and thanks
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1answer
345 views

Will Nexus load-balance method “src-dst-port” help balance link usage between two servers on same subnet?

I'm sending data on multiple ports evenly, but only receiving data on two ports at my receiver. Both servers (on the same tcp subnet) are connected to pair of Nexus 7K switches (I believe they are ...
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0answers
448 views

Cisco Nexus 7k Mac move

I have been troubleshooting a mac move behaviour on my core network, which is made of 2 Nexus 7K with F3 series modules. They are inter-connected with a fabricpath mode port-channel. All the remote ...
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3answers
728 views

Blacklist CLI commands on a Nexus

Is there a way to make a Cisco Nexus 7k to reject a CLI command? Everyone knows about the impact, when you want to add a VLAN to a trunk, and if you forget the keyword aadd. If you do this with a ...
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2answers
878 views

How long of an outage for ISSU Nexus Upgrade?

I am in the progress of doing ISSU upgrades on some nexus 7710 chassis' with dual supervisor modules. I set a ping test that to traverse across the switch shortly before the upgrade and experienced ...
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1answer
815 views

Looking to confirm correct OID to poll for Nexus power module operational status and the meaning of results

The OID I am polling at the moment is cefcModuleOperStatus 1.3.6.1.4.1.9.9.117.1.2.1.1.2. When I poll a Nexus 7k switch I am getting a result: 2,2. I am guessing this means OK and OK. The thing is I ...
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2answers
2k views

nexus : unable to trace switch port

We have nexus 7000, there are multiple vlans But I am unable to ping from 10.48.32.0/24 to 10.48.42.0/24 There is user 10.48.32.54 i am unable to trace its switch port,please advise. Below is ...
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1answer
95 views

Where does Netflow get Written to?

I have Netflow V9 being sent to a server running Ubuntu 14.04. The data is communicated on port 2000 (the default for Netflow). However nothing appears to be listening on that port. (nothing shows ...
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2answers
235 views

2911 as default GW for Nexus

(There was a previous question that resolved the VLAN issue.) I have a section of topology where a 2911 is acting as an internal NAT router. (We don't have enough private IP addresses to give to all ...
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2answers
113 views

Cisco Nexus 6004 Layer 3 capabilities

My organization currently has a pair of Nexus 7010's (Sup-1's) in one of our smaller data centers as our core switch (we still currently implement a Core-Dist-Access model). Long story short, this ...
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1answer
3k views

why we cannot connect to FEX dual home with Nexus 7k?

I want to connect FEX directly to Nexus 7k as dual home.. but recommendation says not to connect FEX with 7k as Dual home.. I want to know the reason.. Please help.
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1answer
5k views

Configuring a password policy on Cisco IOS or NX-OS

I was wondering if it's possible at all to configure a password policy which enforces password complexity for locally defined accounts. I know it's possible for TACACS+ and RADIUS, but I need to know ...
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2answers
1k views

Cisco Nexus 9000 core + FEX or ToR switches? [closed]

So I currently have two racks where I need a bunch of 10GbE ports (currently using SFP+ TwinAx cables), and I want to replace my current switch. Basically there are three options I could do: 1x9504 ...
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1answer
557 views

Nexus 7010 ACL Error

IS_NEXUS_7010(config)# interface Ethernet2/2 IS_NEXUS_7010(config-if)# description Connected to Exchange Cisco 2960 24 IS_NEXUS_7010(config-if)# switchport trunk allowed vlan 1-14 IS_NEXUS_7010(config-...
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1answer
4k views

How to best re-allocate interfaces to move to a different VDC

I'm working on re-allocating interfaces that are on a N7K-M132XP-12L (32 port 10 Gig module) in a Nexus 7k. The ports are currently configured as follows vdc router_VDC_2 id 2 allocate interface ...
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2answers
462 views

How to connect private users to applications within a trusted network without direct connection to the Server Switch

I have 2 Control Center Sites each with 2 N7Ks in a full mesh design and 2 Nexus 5548UP’s as Internal Server Farm Aggregation and 2 ASA Firewalls hanging off each N5K Agg. Both Sites have a mirror ...
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2answers
1k views

Issue with GLC-T on in a Nexus 7000 F2e line card

We are experiencing an issue with a GLC-T SFP in a F2e Line card on a Nexus 7000. No matter what is tried we can it will not go up/up. This connection will go from one Nex7k to another and is intended ...
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2answers
2k views

Cisco Nexus Fabric Extenders with 10G-SFP in path?

We are looking to deploy a new data center build-out with Nexus 7ks and Nexus 2ks(FEX). I know the Nexus 2ks come bundled with the Fabric Extenders to be used to uplink to the Nexus 7ks. Our plan ...
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1answer
2k views

Cisco Nexus 7000 Sup-2 and 2E, why no CMP?

I am looking at an upgrade from Nexus 7000 Supervisor 1's to Supervisor 2E's. One of the differences that I am seeing is a lack of the CMP (Connectivity Managment Processor) and the CMP port. Even ...
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5answers
15k views

How to - use regex in Nexus to search for this | or that?

So aggravating - i can't find good documentation on how to use the Nexus regex command. So, if my interfaces look like this: interface Vlan224 description MANAGEMENT no shutdown ip flow ...
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6answers
6k views

What is the benefit of a Cisco “top of rack” design?

Aside from the obvious cabling mess you avoid (which I know for us as network engineers is great, but hard to use as an excuse when reasoning with someone who sees no point in it), what do you gain ...
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1answer
4k views

Configuring HSRP on Nexus OS

How do you configure HSRP on a Nexus 7000 series switch? I know in IOS the commands are in the interface configuration, for example: switch-a#config t switch-a(config)#interface g1/0/1 switch-a(...
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4answers
1k views

Is Nexus 7000 series line card “OIR” impact-free?

I have read many data sheets on the Nexus 7000 series and it's cards purporting to be capable of OIR (Online Insertion and Removal). However I have never needed to replace/reseat/add any Nexus line ...