Re: [dhcwg] Call for Adoption: draft-yeh-dhc-dhcpv6-prefix-pool-opt-08

["Leaf Yeh" <[e-mail]>]

Ole - the _aggregate route_ (i.e the route covering the PD prefixes)
installation and redistribution in an IGP is typically done with manual
configuration on the PEs.
route injection by PD itself, is typically done by DHCP snooping.

Agreed the above if we don't have draft (OPTION_PREFIX_POOL). :-)

DHCPv6-PD inject the dynamic routes per the lease of delegated prefixes,
while the draft (OPTION_PREFIX_POOL) help to inject the *dynamic*
aggregation route per the *status* of the prefix pool. (See the definition
of *status* in Section 4 ) 

All the configuration for the necessary aggregation routes (on the relay)
per the prefix pools (and its status) turns to be automatic after employing
the mechanism newly introduced in this draft.


Best Regards,
Leaf


-----Original Message-----
From: [e-mail] [mailto:[e-mail]] On Behalf Of
Ole Tr?an
Sent: Friday, September 07, 2012 11:31 PM
To: Alexandru Petrescu
Cc: [e-mail]
Subject: Re: [dhcwg] Call for Adoption:
draft-yeh-dhc-dhcpv6-prefix-pool-opt-08

Alex,

[...]

>> this does not solve the DHCPv6 PD problem of route injection. a route 
>> needs to be installed per client, and snooping is still needed for 
>> that. this proposal _only_ solves the problem of installing an 
>> aggregate route for multiple PD RRs into a PE/relay.
> 
> In a sense I agree - this proposal seems to still require snooping.
> (i.e. existing single prefixes in PD require snooping and pool-opt 
> draft requires it too).
> 
>> this is most typically done with static configuration today.
> 
> Well no, static configuration at Relay is not sufficient for PD to 
> work, even if we dont talk pool-opt draft - there is a need of that 
> route at Relay.  There is no other solution to that than DHCP Relay to 
> become more intelligent (i.e. "snoop").

the _aggregate route_ (i.e the route covering the PD prefixes) installation
and redistribution in an IGP is typically done with manual configuration on
the PEs.

route injection by PD itself, is typically done by DHCP snooping.

cheers,
Ole