Method for transmission of data packets through a network with an aggregation strategy with timeout to a burst
View Patent ↗A method for transmission of data packets through a network is provided. The data packets with a maximum allowable delay are aggregated in a node of the network according to an aggregation strategy with timeout to a burst, wherein on arrival and buffering of a first packet a timer is started and succeeding packets are buffered until a time is elapsed, the buffered packets are sent as a burst into the network and with the next arriving and buffered packet the timer respectively this cycle is started again, where the time is determined by the product of the maximum allowable delay for a packet multiplied with the value 2.
1. A method for transmitting data packets through a communications network, the data packets having a maximum allowable delay (mad), an average packet rate (apr), and an average packet size (aps) that are aggregated in a communications network node of the network in accordance with an aggregation strategy with timeout to a burst, the method comprising:
buffering a first packet and subsequent packets until a first time has elapsed; and
transmitting the buffered packets as a burst into the network,
wherein the burst is transmitted via at least one switch of the network, with a number of channels (noc), a switching time (t S ), and a burst blocking probability (bbp),
wherein the first time is between an upper and lower limit,
wherein the upper limit (T u ) is determined by the formula:
T u =110% ( mad* 2),
wherein the lower limit (T l ) is determined by the formula
T
l
=
90
%
×
t
s
-
E
noc
-
1
(
bbp
)
apr
+
aps
ls
E
noc
-
1
(
bbp
)
-
apr
·
aps
ls
where E noc −1 is an inverse Erlang B formula for the noc and bbp, and
where ls is a link speed.
2. The method according to claim 1 , wherein the upper limit is between 110% (mad*2) and 90% (mad*2).
3. The method according to claim 1 , wherein the lower limit is between
T
l
=
90
%
×
t
s
-
E
noc
-
1
(
bbp
)
apr
+
aps
ls
E
noc
-
1
(
bbp
)
-
apr
·
aps
ls
and
T
l
=
110
%
×
t
s
-
E
noc
-
1
(
bbp
)
apr
+
aps
ls
E
noc
-
1
(
bbp
)
-
apr
·
aps
ls
.
4. The method according to claim 1 , wherein the packets are Internet Protocol (IP) packets.
5. The method according to claim 4 , wherein the network is formed as an Optical Burst Switch network.
6. The method according to claim 5 , wherein the node is an edge node of the network.
7. The method according to claim 6 , wherein the burst is transformed in the edge node and sent as an optical burst.
8. The method according to claim 1 , wherein the network is formed as an Optical Burst Switch network.
9. The method according to claim 1 , wherein the node is an edge node of the network.