Server Networking

Went looking through my Nexus 4001i logs today, and started noticing a bunch of STP role and port change messages:2013 Jul  5 14:40:31 N4k-SLOT7-SW1 %STP-6-PORT_ROLE: Port Ethernet1/1 instance MST0000 role changed to designated2013 Jul  5 14:40:31 N4...

DNS is what I'm using for most of my subnets. The problem is that I have a handful of subnets that have devices that are under the control of an outside agency. Those devices access a server in my DC by pointing to the IP Address. If I performed a fa...

Hi - I get this cycle of message regularely on my N5K pair;%FWM-2-STM_LOOP_DETECT: Loops detected in the network for mac bf80.5bee.2a60 among ports Eth101/1/19 and Eth101/1/20 vlan 120 - Disabling dynamic learn notifications for 180 seconds %FWM-2-ST...

Hi all,I'm trying to configure N1KV for Hyper-V using REST API and Powershell. To do it, I'm following this guide: http://www.cisco.com/en/US/docs/switches/datacenter/nexus1000/hyperv/sw/5_2_1_s_m_1_5_1/rest/api/guide/n1000v_rest_api-getting_started....

Hi Guyz,Does new Nexus 2K such as 2248PQ, 2232 support native FC on fex host Ports.?Thanks,Mazhar

Good Day all,I have a query. Our customer will be changing out their 3comm core switch and placing in a nexus 5596 switch instead. There access switches will now be connecting to the 2 5596T switches that will be clustered.Can a single 3comm switch b...

I have been attempting upgrade on a pair of Nexus 5010s in a vPC configuration. I want to go from n5000-uk9.5.0.3.N1.1c to n5000-uk9.5.2.1.N1.4 as that is the minimum recommended version. I have 4 FEXs that are dual homed to the N5ks and 4 old CatOS ...

I just installed two switches connected with a NEXUS 5506UP vPC link consists of two links 10Gigabits. I configured in both HSRP NX5K for managing redundant routing local VLANs.Both NX5K are connected to a firewall via two links Etherchannels in L3 m...

I have 2 N7K switches and would like to connect them via port channel and put the channel in VLAN 101. I have the following config, does it make sense? Thanks in advance!interface eth 3/1 switchportchannel-group 101 mode activeinterface eth 3/2 switc...

I have enabled storm-control at my access layer (C4K), and I'm happy with the results -- every few weeks, someone creates a loop using a mini-switch, storm-control shuts down their port before they can take out that floor.interface GigabitEthernet2/1...

Hi Pal,I want to ask if anybody ever got the same issue like me as this follow?ES-N1KV# sh modMod  Ports  Module-Type                       Model               Status---  -----  --------------------------------  ------------------  ------------1    0...

I had 1 port become loose and the Gbic would stay snuggly in. I put in a TAC Case and was sent a replacement chassis. Now I need to transfer all modules and license to the new chassis during a maintaince window. I am trying to come up with a step by ...

                   We tried to upgrade UCS firmware from 2.1.1f to 2.1.2a, initially with autoinstall infrastructure                    however, the system hangs with IOM upgrade !                    any advice how to escape from the autoinstall ?   ...

I'm trying to associate FEXs in a number of VDCs on a Nexus 7K running NX-OS 6.1. The design that I'm working to calls for duplicate FEX IDs across multiple VDC, ie VDC 2 has FEX 101 and VDC 3 has FEX 101. Given that VDCs are unique contexts on the 7...