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On 17 Mar 2008, at 23:30, Jake Chin wrote:
Ishii-san from JPNAP raised a good point – if we put the v6 traffic on the same collision domain, it will get totally lost in sflow for traffic analysis purposes.
That will solve itself if (when) IPv6 gains volume.
I'm beginning to think that the most practical way is to have a separate vlan/collision domain for the v6 traffic and configure 802.1q on the access port if both v4/v6 is required.
Our switch equipment has port-counters, not vlan-counters. I believe that it is totally not unique in that. Hence, this approach would not always solve this issue but it puts the burden of using .1q on the connected networks.
-- Arien
