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1 AnthonyEnglish commented Permalink

Another great blog post, Chris. The technical FAQs for real-world situations are just so helpful. <div>&nbsp;</div> One small note regarding this part: <div>&nbsp;</div> "This document (by Anthony English) is also a very useful document relating to VLANs, SEAs and VIOS:" <div>&nbsp;</div> http://www.ibm.com/developerworks/aix/library/au-managevlans/index.html?ca=drs- <div>&nbsp;</div> There's a small correction to that article of mine. When assigning a new set of virtual adapters to an SEA, the command flag for chdev should be -virt_adapters, e.g. <div>&nbsp;</div> chdev -dev ent5 -virt_adapters ent3,ent6 <div>&nbsp;</div> In my original version of the document I had the flag listed as -vadapter instead of -virt_adapters <br /> The article on developerWorks is in process of being updated.

2 kaelu commented Permalink

1. Add another virtual ethernet on one of the lpars with vlan tag 500. <br /> 2. Add another virtual ethernet on the standby VIO server with PVID=88 (non-tagged VLAN), VLAN ID=500. <br /> 3. Add the new virtual ethernet to the SEA. This will make 2 virtual ethernets on the existing SEA i.e PVID=1 and PVID=88 or non-tagged VLAN and tagged VLAN 500. <br /> 4. Configure the physical network switch for VLAN tagging i.e VLAN 500. <br /> 5. Then failover from Primary VIOS to Standby VIOS and test the connectivity. <div>&nbsp;</div> My questions on this: <div>&nbsp;</div> 1. Is that a possible implementation or testing on doing this kind of scenario? <br /> 2. I'm not sure if the non-tagged VLAN and tagged VLAN can co-exist on the same SEA or network physical switch?

3 kaelu commented Permalink

Hi Chris, <div>&nbsp;</div> P.S. My previous comment/follow-up question didn't capture the whole message, so here it is... <div>&nbsp;</div> I have a follow-up question on adding a new virtual ethernet that is VLAN-tagged to an existing SEA with a non-VLAN-tagged virtual ethernet. <div>&nbsp;</div> Currently we are using a SEA FAILOVER configuration, with an etherchannel and virtual ethernet(non VLAN-tagged associated to the SEA on both VIO servers. <div>&nbsp;</div> Now we need to move to a new network with a VLAN-tagged 500 and our main goal is to achieve this without any network outage. Is this possible? <div>&nbsp;</div> Here's the implementation that I'm thinking about but I'm not 100% sure if this can be done without any outage. <div>&nbsp;</div> Current SETUP: <div>&nbsp;</div> SEA FAILOVER with PVID=1 on all VIOS and client lpars, no VLAN-tagging. <div>&nbsp;</div> 1. Add another virtual ethernet on one of the lpars with vlan tag 500. <br /> 2. Add another virtual ethernet on the standby VIO server with PVID=88 (non-tagged VLAN), VLAN ID=500. <br /> 3. Add the new virtual ethernet to the SEA. This will make 2 virtual ethernets on the existing SEA i.e PVID=1 and PVID=88 or non-tagged VLAN and tagged VLAN 500. <br /> 4. Configure the physical network switch for VLAN tagging i.e VLAN 500. <br /> 5. Then failover from Primary VIOS to Standby VIOS and test the connectivity. <div>&nbsp;</div> My questions on this: <div>&nbsp;</div> 1. Is that a possible implementation or testing on doing this kind of scenario? <br /> 2. I'm not sure if the non-tagged VLAN and tagged VLAN can co-exist on the same SEA or network physical switch?

4 DemianPH commented Permalink

How does setting up the netaddr attribute work when you have a switch that is only allowing two vlans defined in the virtual bridge adapter? Do I have to put a vlan adapter off of it in this case?

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