
Examples and Implementation Notes
117348-A Rev. A B-9
Table B-3 provides some examples of using outbound traffic filters for protocol
prioritization goals.
Table B-3. Sample Criteria, Ranges, and Actions for Protocol Prioritization
Filtering Goal Criteria Path Ranges Action Path Notes
Place LAT traffic
in the High queue
(since LAT is a
time-sensitive
protocol)
Criteria > Add > Datalink
> Datalink Type >
Ethernet type
Note: If this is a Frame
Relay interface, specify
SNAP instead of
Ethernet Type.
6004 Action > Datalink >
Add > High Queue
See T
able 5-8 in
Chapter
5 for a list of
common Ethernet
Type codes.
Place ICMP
traffic in the Low
queue (ICMP is
not a
time-sensitive
protocol)
Criteria > Add > IP > IP >
Protocol
1 Action > IP > Add
> Low Queue
See T
able 5-9 in
Chapter
5 for a list of
common IP Protocol
and Type codes.
Place SNA traffic
in the High queue
Criteria > Add > Datalink
> Source Routing >
DSAP
Note: To prioritize
IP-encapsulated SNA
traffic, choose Criteria >
Add > IP > Source
Routing > DSAP.
DSAP values:
0x04 to 0x05
0x08 to 0x09
0x0c to 0x0d
See Chapter
5
for information
on specifying
MAC address
or SAP criteria
ranges.
Action > Datalink >
Add > High Queue
Note: To prioritize
IP-encapsulated
SNA traffic, choose
Action > IP > Add
> High Queue.
You can also choose
SSAP, Destination
MAC Address, or
Source MAC
Address as the
criteria.
Place all DLSw
traffic leaving a
particular
synchronous
interface in the
High queue
Criteria > Add > IP > IP >
TCP Destination Port
2065 to 2067
See T
able 5-6
in Chapter
5 for
a list of
common TCP
port ranges.
Action > IP > Add
> High Queue
This example shows
how to give DLSw
traffic priority over
other protocols on the
interface. To modify
the priority of specific
types of DLSw traffic
at the TCP level, use
DLSw protocol
prioritization, as
described in
Configuring DLSw
Services
.
(continued)
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