Re: Transport level multi-homing a structural view.

[Greg Maxwell <gmaxwell@martin.fl.us>]

On Wed, 4 Apr 2001, Greg Maxwell wrote:

>     [Tier 1 - providerB & TLA][Tier 1 providerC & TLA]------------------\
>      |                      *                                           |
>     [Tier 1 - providerA & TLA][Tier 1 providerD & TLA] - [Tier 1 E ...] |
>     |      |                    |   |                        |  |   |   |
>     \     [tier 2 A prefix ]\   |   | /----------------------|  |   |   |
>     [cust sngl homed A]	|  ||	|   [Tier 2 - D&E prefixes]     |   |   |    
>     [multihomed cust A&D]--uu---/    | \[Cust D&E]   [Cust E]---/   |   |
>     [cust sngl A]----------/|        |    /[Link Sharing cust Pre E&C]  |
>                 [Tier 3 provider A&D&E]   \[Link Sharing cust Pre C&E]--/
>      [Cust A&D&E]/ \[Cust A&D&E]-----private IP level peering--/

This is of course not comprehensive, other arrangements are possible such
as customers recieveing several differnt TLA prefixes from differnt tier
2/3s.