Server Networking

This bugs also exist in Cisco 2911 running  IOS  version 15.4(1)T3 which severely degrade overall network performance and created unnecessary packet fragmentation and wasted massive 30% bandwidth. As the result, this bugs under worst case scenario i...

Hi, we're moving to a new data center and will be upgrading to an ASA 5506.Given that switchport functionality present in the 5505 has for some reason been removed in the 5506, it seems that we need an L2 switch thrown into the mix. Fair enough, woul...

I have a customer with a bunch of N4001i blade switches. They are all running either 4.1(2)E1(1h) or (1g). They upgraded to DCNM 6.1.1a. Within a few minutes all of the N4Ks crashed.This is what was gleaned from a sh ver:Reason: Reset triggered due t...

Hi, I'm trying to use the aRFS (Accelerated receive flow steering) option on a 1227 VIC installed in a C220M4 server running Linux. I did the following steps: 1. Enable aRFS in CMIC & reboot 2. Run ethtool to enable "ntuple filters": ethtool -k eth...

I know that in order to connect the 2348TQ (6x40G uplink) to the 9372PX I need to use breakout cables with appropriate SFPs.  My question is, is there any configuration to be done in order for the 2348 uplinks to work in this mode.  Can I just create...

I'm late to this project, short deadline and no real experience with the hardware.  Typical story :) I've had zero exposure to UCS and Nexus but I have a good understanding of IOS switching.  I'm confused as to why the existing solution connects the ...

I have two Nexus 9504 with a x9464 line card and two Nexus 9372-px-e Im using a QSFP twinax to connect one Nexus 9504 with one Nexus 9372 but the link shows not conected. I tried the connection between two Nexus 9504 with the same twinax and it wor...

Dear UCS Experts, Recently We purchased Cisco UCS-240 M4 Server and installed 3X600GB SAS HDD with Cisco 12G SAS Modular RAID Controller. I Could not find RAID 5 while Configuring RAID Controller in Cisco Storage Management Console.  I found Only R...

Good Morning, a short question that concerns me: Is it a valid design to have two Nexus 5600, in two different locations/datacenters (about 100m distance between them) and build a VPC between them to connect dual homed FEX's in each location for par...

hi,  any one knows if is it possible to build a port channel that member ports are located in different line card on the 9504 nexus chasis (line cards 6494), the objective the design is to connect a 3750X stack with port channel that ends in the 9504...

HI Team, We are experience an issue in our ucsm environment. We see that we are able to ping the packets of the vnics which belong to the same fabric but packets get dropped when we try to reach from Fabric A  vnic to Fabric B vnic. For example when...

I'm trying to deploy 1000v in a lab and I'm having trouble adding an ESXi host to the 1000v switch. I'm using VSUM 2.0 wizard to add the ESXi host to the 1000v. The vSphere Tasks shows the following line: Name: Add host to Cisco DVS, Status: fault.co...

Does anyone know how much buffer the B22HP FEX has and whether it is a shared buffer?