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Questions tagged [cisco-nx-os]

For questions about or involving the Cisco NX operatingsystem. For instance, you are configuring a Nexus switch or troubleshooting a problem with a MDS 9000 multilayer switch. All network devices, that use the NX OS.

2
votes
1answer
70 views

nxos ansible playbook to configure interface

Last few days i am playing with cisco nexus switch to deploy config using nxos ansible modules to make it automate. I am running n3000-uk9-kickstart.6.0.2.U6.6.bin software and here is my playbook ...
4
votes
1answer
326 views

Cisco 3172 asks for LAN_ENTERPRISE_SERVICES_PKG license to enable OSPF and PIM when they are LAN_BASE_SERVICES_PKG license features

I have several Nexus 3100 switches in which I use OSPF and PIM. Cisco says that these features are included in the LAN_BASE_SERVICES_PKG which is included by default in the switches. Switch1# sh ...
1
vote
2answers
287 views

Leak default route to multiple VRFs while keeping VRFs isolated from each other

I'm working on a configuring stuff on a Cisco Nexus 3k based platform and trying to isolate different things into different VRFs which should not be able to talk to each other. Some of these VRFs ...
1
vote
2answers
230 views

Nexus 9396px FAN speed issue

When i load nxos.7.0.3.I2.2d.bin Software then FAN running very quiet in following speed switch# sh environment fan detail Fan: ------------------------------------------------------------------------...
1
vote
0answers
313 views

Cisco ASR1006 ESP40 high CPU utilization

We have ASR1006 with ASR1000-ESP40 and it seems strange on our SNMP monitoring its showing Max CPU utilization 70% and avg 35% but when i check on command line numbers are totally different, what is ...
8
votes
2answers
3k views

Cisco 3064 switch upgrade from 6.0.x to 7.0.x issue

I am trying to upgrade from 6.0.2.U6.5c to nxos.7.0.3.I4.7, before upgrade i want to make sure it pass all checks but i got this error. This switch isn't in production yet but want to make sure it ...
1
vote
1answer
819 views

VLAN does not exist in NXOS

This is my first time posting so my apologies if it's not quite right. I created a VLAN in NXOS with the following configuration: interface Vlan100 no ip redirects ip address 172.50.39.2/24 ...
1
vote
1answer
626 views

Cannot enable Flow Control on Cisco Nexus 3048

I've a pair of Nexus 3048 running NXOS version 7.0(3)I2(2d) and I can't enable flow control on ethernet interfaces. When issuing the command: flowcontrol receive on it returns with: ERROR: This ...
1
vote
2answers
780 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 ...
1
vote
1answer
2k views

Differences between SNMP on NX-OS and IOS

When I configure SNMP on IOS I use this syntax: snmp-server group [group] v3 priv snmp-server user [user] [group] v3 auth sha [blah] priv aes 128 [blah] access [ACL] ip access-list standard [ACL] ...
1
vote
1answer
232 views

add local route to vPC member

TLDR; routed port on vPC switch 1 needs to be accessible from vPC switch 2. Our data center has a pair of Nexus 5596T with L3 card being used as the core. These are vPC pair, HSRP members, all vlan ...
1
vote
2answers
733 views

Email alert if interface status changes

I have two Nexus 5548s in our data center. They have only servers and storage connected to them. Some interfaces are configured for native fiber channel while the rest are still Ethernet. Since there ...
1
vote
1answer
880 views

QoS (802.1p) for iSCSI Traffic on Cisco Nexus 3048

We're building a new core for our University and one thing that bugs me is the iSCSI network. We already considered Jumbo Frames and Flow Control on the iSCSI ports, but one thing remains for debate, ...
1
vote
1answer
1k views

understand “switch-profile” for Nexus 5k switches

Am I correct that if there is no switch-profile configured for pair of Cisco Nexus 5k switches, then conf sync does not work regardless that CFS(Cisco Fabric Services) is enabled over management ...
1
vote
2answers
1k views

Nexus OS authenticate via ssh key

on the catalyst IOS I hadn't had any problems with activating the ssh auth via public key, but on the Nexus OS I can't seem to find the option. Is it even implemented in some NX-OS version?
2
votes
5answers
6k views

1 x 40G QSFP to 4 x 10G SFP+ Can these 4 x 10G breakouts go to different hosts?

I am getting quotes for Structured Cabling and one guy is saying that I can use 40G MPO from my distribution switch up to a 40G MPO patch panel connection and across a 40G MPO trunk but then break it ...
2
votes
2answers
712 views

Communication between VDCs on Cisco Nexus 7000 via virtual interface

Is there any way to create a virtual interface of sorts between two VDCs on a single Nexus 7000 switch? I've read that a physical cable is required (which is lame) however I wasn't sure if this was a ...
1
vote
1answer
822 views

Cisco Nexus 5k EIGRP Configuration

I have two Cisco Nexus switches with EIGRP Routers. Switch 1: SWITCH1(config-if)# sh run !Command: show running-config !Time: Sun Feb 21 05:29:57 2016 version 5.0(3)U5(1f) no feature telnet no ...
3
votes
2answers
1k views

TACACS Implentation server key error

I'm implementing a new TACACS server on our network after having removed the old TACACS server which we no longer own. I've already gotten the implementation working with the NX-OS devices, but when ...
5
votes
1answer
2k views

Cisco Nexus vpc card type mismatch

I have a pair of Nexus switches configured for vPCs. In several cases, it is working correctly: core01# sh vpc consistency-parameters int po40 Legend: Type 1 : vPC will be suspended in ...
2
votes
2answers
9k views

How to download startup configuraton from a remote server on Cisco NX-OS

I am trying to replace the startup configuration on Cisco Nexus device using a file on remote server. I tried the instructions given at this page: Working With Configuration Files: Downloading the ...
5
votes
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 ...
4
votes
1answer
1k views

Cisco Nexus 5000 VTP trunk status in vPC consistency-parameter

In a pair of Nexus 5000, the show vpc consistency-parameters command displays VTP trunk status on only one Nexus Enabled. The config is identical, what is the reason for the discrepancy? # sh vpc ...
5
votes
1answer
1k views

What's the purpose of “mac-address 0000.0000.0000” in NX-OS?

On a production Nexus 5K, I noticed the following piece of config: interface Vlan1 mac-address 0000.0000.0000 This is the entire Vlan1 stanza. What does this accomplish?
4
votes
1answer
927 views

NX-OS: Importing already mirrored config into a switch-profile

I'm running NX-OS version 5.2(1)N1(5) on a pair of Nexus 5020s that are mirrors of each other for all intents and purposes. After OS upgrades some of the configuration that was inside the switch-...
12
votes
1answer
4k views

NX-OS peer-switch issues with 6500 VSS

I'm bringing up a new pair of Nexus 5500s running NX-OS 5.2 and I'd like to make use of the new vPC Peer Switch feature: The Virtual Port Channel (vPC) peer switch feature addresses performance ...
8
votes
5answers
14k 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 ...
10
votes
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(...
11
votes
3answers
6k views

What are the alternatives to OTV for stretching a layer 2 network across 2 datacenters?

We want to find a "safe" way to stretch layer 2 network across 2 data-centers, and since we don't have any equipment running NX-OS on either data-centers we can't use OTV. So what are the alternatives ...