idontwant with d=dlow-1 and iwant to pull messages!

[ufarooqstatus]

Only for large messages. We relay large messages only to dlow-1 peers and send idontwant message to others. missing peers can use iwant to pull the large message

[arnetheduck]

While this is an interesting idea:

• why IDONTWANT? Why not IHAVE?
• since sending the large messages takes time, it seems likely that peers will request it in most cases as they receive the notification before they receive the message - are there simulations looking into this effect?

[ufarooqstatus]

• why IDONTWANT? Why not IHAVE?

IDontWant has two advantages over IHave:

1. we need to maintain much smaller cache.
2. On getting 1st iHave, the receiver generates IWant, although it is very likely that some other peer(s) are already sending the same message

[ufarooqstatus]

• since sending the large messages takes time, it seems likely that peers will request it in most cases as they receive the notification before they receive the message - are there simulations looking into this effect?

Yes, and limited forwarding with/without IHaves showing better results for messages beyond 600KB