HP 600 Series, Services And Applications

Page: 105 / 316

Traffic Prioritization
Prioritizing Bridged Packet Traffic
Router traffic, both bridged and routed, generally moves on a “first-in,
first-out” basis. Prioritization can help to ensure that bridged packets that
are sensitive to long response times (such as SNA packets) will not be
delayed or dropped due to delays caused by traffic congestion. Prioritizing is
based on the bridging circuit group and is done on inbound packets that will
be bridged over a WAN circuit. There are two methods of prioritizing
bridged packets:
Configure the same priority level for all bridged packets within a
circuit group. This option globally prioritizes all incoming bridged
packets for the specified group to be processed with high, normal
(the default), or low priority. This option gives you the following
capabilities:
•
Configure bridged traffic to a lower priority than routed traffic
(which is always normal).
•
Configure bridged traffic to a higher priority than routed traffic
(which is always normal).
Configure different priority levels for different types of bridged
packets within a circuit group. This is done with traffic filters, by
setting the “Action” to high or low priority rather than to accept or
drop. Within a specified circuit group, this option prioritizes individ-
ual encapsulation types of incoming packets to be bridged at
different priority levels.
Aligning Circuit Bandwidth to Prioritization Needs
Together with establishing priorities for bridged packets, you can also
specify bandwidth allocation within a WAN circuit for each priority level.
This reserves a mimimum bandwidth if higher-priority traffic would take it
all.
R
o
u
ti
n
g
S
e
r
v
ic
e
s
N
o
te
s
2
Bridging Service
Traffic Prioritization
2-53