What’s missing in RFC3175 ? Not possible to associate reservation with IPsec tunnel (eg SPI) Not possible to setup multiple reservations for same DSCP (eg for multiple preemptions) o IP4 SESSION object: Class = SESSION, C-Type = RSVP-AGGREGATE-IP4 +-------------+-------------+-------------+-------------+ | IPv4 Session Address (4 bytes) | +-------------+-------------+-------------+-------------+ | /////////// | Flags | ///////// | DSCP | +-------------+-------------+-------------+-------------+ o IP4 SENDER_TEMPLATE object: Class = SENDER_TEMPLATE, C-Type = RSVP-AGGREGATE-IP4 +-------------+-------------+-------------+-------------+ | IPv4 Aggregator Address (4 bytes) | +-------------+-------------+-------------+-------------+ |