Server Networking

Cisco Support,We recently swapped out 1GB interfaces in our ESX server and replaced them w/10GB cards.  When we did that, the interface IDs presented to the 1000v changed.  References to the removed interfaces still appeared when the "show port-chann...

I have 2 UCS 6120 fabric interconnects which both have VPCs to 2 x 5548s.  First fabric interconnect uses Po260 & vPC 260 and second fabric interconnect uses Po261 & vPC 261.  I used config sync to add "spanning-tree port type edge trunk" to int po 2...

HiWe are planning upgrade for B Series and UCSM-Managed C Series Servers to below versionPhase 1: upgrade UCS firmware from 2.0 (1s) to 2.0 (4d)Phase 2: upgrade UCS firmware from 2.0 (4d) to 2.1 (3b)Phase 3: upgrade UCS firmware from 2.1 (3b) to 2.2 ...

We have dual Nexus 5596UP running as Layer 2 only. All routing is done on a Cisco 2851. I will be installing a L3 module in both 5596's and having the Nexus switches become our core router. The 2851 will contine to route or WAN traffic.Has anyone ins...

Hi guyRecently we broguht 4506-E with Supp-8E and when connect our Stack switch 3750 with 4506 port gi2/1 in trunk mode and configure vlan 1 with ip address, from clinet site i can ping the 4506 ping for sudden period and after than i cannot ping it....

Looking for a quick answer here.  Someone is telling me they are able to purchase a 1gig Copper SFP tranciever and use that in a Nexus 2232.  As in, connecting a 1gig connection into a Nexus 2232.  I was under the impression that a N2232 was 10gig on...

Hello, I have question regarding Nexus 7k and routing within F2E in VDC. Suppose I have Nexus 7k chassi with M1 and F2e modules. From there only 12 F2E ports are placed in one VDC, and all 12 ports are from the same F2E module.Question is, from that ...

Hello,We've been experiencing a lot of performance issues last months and I'm still trying to figure out where the problem is. We have a IBM NSeries 6040 (= Netapp) storage controler (2 controlers), connected to two Nexus 5548 UP with FibreChannel (2...

 Dear all, I am running the below OS version on my DC switches and according to some documentation i found i hit the below bug.Though, according to Cisco, this should be solved in this OS version. Has anyone had the same issue or can you please advis...

 Dear all, I am running the below OS version on my DC switches and according to some documentation i found i hit the below bug.Though, according to Cisco, this should be solved in this OS version. Has anyone had the same issue or can you please advis...

Hi,  I have a Cisco C220 M3 server with a VIC 1225 card installed which is running ESXi 5.5.  We have a pair of 7k's with a vpc peer link.  The 10gb ports on the server are split between the N7k's.  A management vswitch is configured, with both nics ...

I currently have one main site and one DR site.  I have two separate provider links connecting the main site to the provider site which are L2 links.  At the main site I have two nexus 7009 (NX-OS6.0) and at DR one nexus 7009 (NX-OS6.0)  I am trying ...

I have two Nexus 5548 switches and 4 2248 FEX all interconnected.  The 5548s are connected to each other with 4 10GE ports and configured for vPC.  The 5548s also have the L3 daughtercard.  The 2248s are redundantly connected to each 5548 with 2 of t...