IPv6 prefix allocation policy modification proposalAuthor: Nicolas AntonielloPresenter: Alvaro Sanchez

www.antel.com.uy

The topic

LACNIC - “Políticas de registración para la asignación y adjudicación de direcciones IPv6”

5.1 Adjudicación inicial5.1.1 Criterio de adjudicación iniciald) Anunciar en el sistema de rutas inter-dominio de Internet un único bloque, que agregue toda la asignación de direcciones IPv6 recibida, en un plazo no mayor de 12 meses.

ARIN’s equivalent policy

ARIN - “Number Resource Policy Manual (NRPM)”

6.5. Policies for allocations and assignments6.5.1. Initial allocation6.5.1.1. Initial allocation criteriac. Plan to provide IPv6 connectivity to organizations to which it will assign IPv6 address space, by advertising that connectivity through its single aggregated address allocation...

The problem

The problem araises when a RIR assign a prefix (/28 for example) to an ISP which has several internet links (let us say 3) with different carriers (3 tier 1 carriers, for example) using BGP publications.

According to LACNIC’s (and most other RIR’s) policy, the ISP must advertise the /28 through all the 3 links without the possibility of dissagregation.The problem with this policy is that by doing this, the ISP loses direct control of the traffic, not being able to distribute the traffic over the 3 different links.A /28 prefix may have a lot of incoming traffic associated to it, but dissagregation (subnets) of the prefix is banned by the policy.

Scenario

International links are expensive, and so, usually heavily loaded.

International links sometimes fail.

Some of the consequent problems admit complex and coordination intensive solutions (i.e.: BGP communities).

Operators need simple and controllable tools, that admit frequent adjustments, and give quick results.

In fact, they dissaggregate!!!

Load balance between links of different providers

Operational target

ISP

Carrier 2

Internet

Carrier 1

Load balance between unequal links of a provider

Operational target

ISP

Carrier

Internet

Operational target

Differential usage of links according to users

ISP

Carrier

Internet

Standard clientGold client

Gold Standard

Conclusion

If aggregation is mandatory, several ISPs:

• either will be in an irregular situation

• or won’t be encouraged to deploy IPv6

LACNIC - “Políticas de registración para la asignación y adjudicación de direcciones IPv6”

We propose to eliminate 5.1.1.d requirement:

5.1 Adjudicación inicial5.1.1 Criterio de adjudicación iniciald) Anunciar en el sistema de rutas inter-dominio de Internet un único bloque, que agregue toda la asignación de direcciones IPv6 recibida, en un plazo no mayor de 12 meses.

And promote removal of equivalent policies in other RIRs

Proposal

ARIN’s equivalent policy

ARIN - “Number Resource Policy Manual (NRPM)”

Equivalent proposal in case of ARIN: to eliminate the 6.5.1.1.c requirement,

6.5. Policies for allocations and assignments6.5.1. Initial allocation6.5.1.1. Initial allocation criteriac. Plan to provide IPv6 connectivity to organizations to which it will assign IPv6 address space, by advertising that connectivity through its single aggregated address allocation...

And promote the removal of equivalent policy in other RIRs