December 2009
Intermediate to advanced
411 pages
12h 24m
English
Content preview from IP Communications and Services for NGN
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
Start your free trial
118 ◾ IP Communications and Services for NGN
1. Receivers know the amount of bandwidth or capacity they need or can han-
dle for a particular service and therefore should reserve them for themselves.
2. e burden of joining and leaving the multicast process is left to the joining
end-point and the source need not worry about it.
3. Optimizing for path and capacity is enhanced in the routers.
RSVP Design Philosophy
e role of the RSVP is to deliver QoS requests to routers or switches along the
chosen path, and the path can be set up using either routers or ATM. e RSVP is
???
L10
L9
L8
L7
H6
H5
H4
H3
H2
L6
L5
R4
L4
L3
L2
L1
R3
R2
R1
H1
Figure 6.7 Many-to-many ...