HW08a

IP Basics: IP/netmask is 152.23.52.52/21; see the CIDR calculator
- Use 152.23.48.1 as the default router; 152.23.48.0/21 represents "this network."
- The IP broadcast address is 152.23.55.255.
Cheshire Reading
- Cheshire feels that guaranteed QoS will be over-priced for the service level. So it's another argument, along with my research data analysis, to try best-effort before insisting on QoS.
Odlyzko Reading
- Odlyzko thinks gossip beats content because the social aspect of communication has always won so far. So that's good news for social networking sites, but bad news for Verizon's VCast business model.
QoS
- QoSTable

Name	Number of Levels	OSI Layer	Hard or Soft	Static or Dynamic	Bandwidth Broker or Policy Server	Functional Types	Engineering	Active or Proactive
more bandwidth	1	1	Soft, Relative	Static, Management	none ($)	Bandwidth Control	Network Engineering	Proactive, Overprovisioning
traffic shaping (like Packeteer)	1	1	Soft, Relative	Static, Management	Policy Server	Traffic Control	Traffic Engineering	Active, Oversubscription
SBS	2	1	Soft, Relative	Static, Management	none ($)	Prioritization	Network Engineering	Proactive, Overprovisioning
802.1p	8	2	Soft, Relative	Static, Management	Policy Server	Bandwidth Control, Prioritization	Per-Device (Network) Engineering	Active, Oversubscription
switch queues	8	2	Soft, Relative	Static, Management	Policy Server	Prioritization	Per-Device Engineering	Active, Oversubscription
ToS	8	3	Soft, Relative	Static, Management	none (per-device)	Prioritization	Per-Device Engineering	Active, Oversubscription
DiffServ	64	3	Soft, Relative	Static, Management	Policy Server	Bandwidth Control, Prioritization	Per-Device Engineering	Active, Oversubscription
IntServ	256	3	Hard, Absolute	Dynamic, Signaling	Bandwidth Broker	Bandwidth Control, Prioritization	Per-Device Engineering	Active, Oversubscription

SampleA2