questions on load balancing

Hello,all,

A freshman on RserPool has some questions:

1.Why do we need to include the "Registration Life" in the message "REGISTRATION" when PE registers itself to Home NS? The timer to count life time only runs at PE. I cannot find any corresponding timer or other actions to work with the PE's life time at NS. Whether this information is not necessary to Home NS?

2. What is the reason that PE must register itself again to Home NS according to the Registration Life time? Force PE to update its loading information?

3. As described in RFC draft, PE shall actively update its loading information to Home NS when it desires. How does the PU get this updated loading information? Only through NAME-RESOLUTION? Is there any possible to ask Home NS to actively inform the registered PUs so that to reach a more dynamic load balancing?

4. There are items named "Pool Element parameter" in the message "NAME_RESOLUTION_RESPONSE". Whether the "Pool Element parameter" is directly copied from the PE "REGISTRATION" message, which means Home NS cannot do any modification on that?

Thank you ver much.

Best regards,
Youye Chen