Re: [DNA-BOF] Detecting Network Attachment BoF description (rev 2)

[Greg Daley <greg.daley@eng.monash.edu.au>]

Hi,

Sorry about replying to myself.

Greg Daley wrote:
[cut]
>>
>> I thought about that case too, but I assumed change in VLAN means 
>> change in
>> link. This really depends on how we define "link", and how VLAN change is
>> implemented. If the host needs to re-do link attachment procedures in 
>> order
>> to change its VLAN, this might as well appear as a link change.
>>
>> A similar case is when the access router has multiple physical links and
>> advertises a different prefix on each, although uses the same link-layer
>> address and hence the same link-local IPv6 address. I think we could call
>> your example "virtual link change".
> 
> 
> I'm not sure about the term.
> There's definitely a link change going on here,
> even if some NIC manufacturers of devices with
> VLANs share MAC addresses.
> In this sense, ambiguity of v6 Link-local addresses
> is something we have to be aware of.
> 
> I think it is a 'definite' link change rather
> than 'virtual' :)

I think that we can remove ambiguity from the
suggested term by hypenating it:

"virtual-link change"

English is so fickle.

Greg.