3gpp-analysis-05: Automatic tunneling inside 3GPP operator's network

[Pekka Savola <pekkas@netcore.fi>]

Hi,

This is the previously-opened "Automatic tunneling inside 3GPP operator's 
network" case again.

substantial
-----------

The issues I'm still not very confortable with:

[note: sending the second one first, because the first requires some 
editing yet..]

2) tunneling inside the 3GPP operator's network, in particular, the last two
paragraphs of section 3.2.1:

    Even a dynamic tunneling mechanism or an IGP/EGP routing protocol
    based tunneling mechanism can be considered if other methods are
    not suitable.

    Connection redundancy should also be noted as an important
    requirement in 3GPP networks. Static tunnels on their own don't
    provide a routing recovery solution for all scenarios where an IPv6
    route goes down. However, they may provide an adequate solution
    depending on the design of the network and in presence of other
    router redundancy mechanisms. On the other hand, IGP/EGP based
    mechanisms can provide redundancy.

==> at least, remove "IGP/EGP" (it's enough to say a routing protocol), and
rewrite the last paragraph like:

    Connection redundancy should also be noted as an important
    requirement in 3GPP networks. Static tunnels on their own don't
    provide a routing recovery solution for all scenarios where an IPv6
    route goes down. However, they may provide an adequate solution
    depending on the design of the network and in presence of other
    router redundancy mechanisms, such as routing protocols run over IPv6 
    links.

.. because "router redundancy mechanisms" is too vague, and IGP/EGP based
mechanisms are routing protocols themselves and already included in that 
context.

I'm not sure if these two edits would fix all my concerns with the 
document, but with these two, it would be much better already.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings