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Chapter 4
Cajun P550/P880/P882 Switch User Guide
Figure4-13 shows an example of a Hunt group load share.
Figure 4-13. Load Sharing Example
The first two users on each switch are connected to one of the ports
in the 1 through 10 range on the 20 port 10/100 card. The second
two users on each switch are connected to one of the ports in the
range 11 through 20 on the 20 port 10/100 cards. There are 6 PLEs
in this configuration. This does not include the PLE’s associated with
the two Hunt Group ports which are labeled 1 through 6.
Load sharing is done in a round-robin fashion based upon BOTH the
Destination MAC Address and the Source PLE. The links on which
unicast packets traverse to reach User E depends upon the source
user’s associated PLE. Users A and B are associated with PLE#5 and
therefore the first link in the Hunt group will be used for unicast
packets from A to E and from B to E. Users C and D are associated
with PLE#6 and therefore the second link in the Hunt Group will be
used for unicast packets from C to E and D to E.
L3 CPU L3 CPU
12 port 10/100
empty
4 Port Gig empty
empty
A B C D 1 2 3 4
Hunt Group
PLE#5 PLE#6
PLE#1, PLE#2
PLE#3, PLE#4
empty
empty
empty
4 Port Gig
12 port 10/100
empty
empty
PLE#1:1,2,3,4; PLE#3 1,2,3,4
PLE#2:1,2,3,4; PLE#4 1,2,3,4