Upgrading DVS from 5.1 to 5.5---any outages?
Now that I have my clusters all at 5.5 which are sharing a DVS, I would like to upgrade the DVS from 5.1 to 5.5. I have done this in Development which has much smaller number of hosts and VMs and it...
View ArticleRe: Upgrading DVS from 5.1 to 5.5---any outages?
The upgrade is supposed to work non-disruptively, and the upgrade wizard contains a compatibility check to rule out possible issues during the upgrade (see vSphere 5.5 Documentation Center) I didn't...
View ArticleSharing an Etherchannel between one vSwitch and one DVS -- is it possible?
My networking skills around link aggregation and Etherchannel are not particularly robust, so I've have been researching the posts here but have not found an answer that directly relates to my...
View ArticlevSwitch only allowing one Host connection
Hi I have a basic setup of 2 VMhosts4 vSwitches4 Physical Networks all exclusive of each other vSwitch0 connects 4 nics per host to a Cisco 3750 stackvSwitch1 connects 4 nics to the iSCSI storage...
View ArticleRe: Upgrading DVS from 5.1 to 5.5---any outages?
1. Is this operation really non-impacting? I was pretty sure the only impact is you cannot create any new port groups, etc while this is happening?I've updated dvSwitches on quite a few occasions and...
View ArticleRe: vSwitch only allowing one Host connection
Without the configuration of physical ports that connects to vSwitch3 we can't help you so much, anyway ask the network guys if there is no Port Security and/or Port Channel configured on this ports...
View ArticleRe: Sharing an Etherchannel between one vSwitch and one DVS -- is it possible?
Follow-up to my original post: It is NOT advised to try and share an Etherchannel between multiple vSwitches, problems WILL manifest. We ran the following test: On an ESXi host, eight vmnic uplinks are...
View ArticleRe: vSwitch only allowing one Host connection
I agree with Richardson Porto, some more information could help.Anyway, another idea is to configure the ports (on both sides) with a fixed speed and duplex setting for 100 MBit/s networks. André
View ArticleNeed some assistance in troubleshooting TCP retransmissions and TCP resets...
People, I'm currently running having a performance issue reported by the user and I've implemented a dedicated network sniffer appliance (Riverbed Steel Central / Cascade) to detect any packet...
View ArticleNIC Teaming and vDS
Hello all, I have a question regarding NIC Teaming and vDS. I have multiple ESXi hosts with 4 physical nic's each and plan on utilizing vDS with NIC Teaming across 2 switches to have full redundancy...
View ArticleRe: NIC Teaming and vDS
I plan on trunking my switches (3 hosts per cluster) and teaming 2 nic's across each switch to ensure full redundancy.That will be fine.Additionally I plan on using route based by IP hash.This, however...
View ArticleSPAN traffic collection
If i am collecting traffic by configuring SPAN on virtual port groups, do I have to have a collector on every ESXi host, or is there a way to ship span traffic across the network to one centralized...
View ArticlePort mirroring on standard switch
Is there anyway to make port mirroring / SPAN work on a standard switch in 5.0 either supported or unsupported?Thanks!
View ArticleRe: Port mirroring on standard switch
Port Mirror is a feature present only on Distributed switch, a workaround for vSwitch is use Promiscuous Mode like described on this blog post:...
View ArticleRe: SPAN traffic collection
You can configure a RSPAN session to send traffic to a centralized collector: vSphere 5.1 – VDS Feature Enhancements – Port Mirroring – Part 3 | VMware vSphere Blog - VMware Blogs
View ArticleRe: Port mirroring on standard switch
Thanks - if I use promiscuous mode on a standard switch: -How can I prevent Vms on that switch that I don't want to mirror to from seeing the mirrored traffic?-How can I send that traffic to a...
View ArticleRe: SPAN traffic collection
OK thanks. I can send an RSPAN session over a network to a centralized collector, but can that collector be on a different subnet over a router or does it have to be on the same subnet?
View ArticleCombine port group mirroring sessions
I need to take the mirroring sessions that I am doing on traffic from 3 out of 4 port groups on a single dv switch, and mirror them to a single uplink on a dvswitch. -Can I do this with a single...
View ArticleRe: SPAN traffic collection
The RSPAN mirror traffic accross layer 2 network, this way you don't need to worry about IP address, but just make sure configure the RSPAN VLAN. At the bottom of the link I provide you can see another...
View ArticleRe: Port mirroring on standard switch
-How can I prevent Vms on that switch that I don't want to mirror to from seeing the mirrored traffic?All VMs on the same port group will see this traffic, but remember that if you don't have a sniffer...
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