Brocade FastIron Ethernet Switch Security Configuration Guide - Manual (Page 139)

Syntax: access-list num (100-199) permit tcp any any 802.1p-priority-marking priority value (0-7) [
internal-priority-marking value (0-7) ]
For UDP
device(config)#acc 105 per udp any any 802.1p-priority-marking 1
or the following command, which also assigns an optional internal-priority-marking value.
device(config)#acc 105 per udp any any 802.1p-priority-marking 1 internal-priority-
marking 5
Syntax: access-list num (100-199) permit udp any any 802.1p-priority-marking priority value (0-7) [
internal-priority-marking value (0-7) ]
In each of these examples, in the first command the internal-priority value is not specified, which means
it maintains a default value of 1 (equal to that of the 802.1p value). In the second command, the
internal-priority value has been configured by the user to 5.
Using an ACL to change the forwarding queue
The 802.1p-priority-marking priority value (0 - 7) parameter re-marks the packets of the 802.1Q traffic
that match the ACL with this new 802.1p priority, or marks the packets of the non-802.1Q traffic that
match the ACL with this 802.1p priority, later at the outgoing 802.1Q interface.
The 802.1p priority mapping is shown in the Default mapping of forwarding queues to 802.1p priorities
table.
The internal-priority-marking value (0 - 7) parameter assigns traffic that matches the ACL to a specific
hardware forwarding queue (qosp0 - qosp7).
NOTE
The internal-priority-marking parameter overrides port-based priority settings.On the FCX platform,
using either 802.1p-priority-marking or 802.1p-priority-marking with internal-priority-marking
performs both marking and internal prioritization.
In addition to changing the internal forwarding priority, if the outgoing interface is an 802.1Q interface,
this parameter maps the specified priority to its equivalent 802.1p (CoS) priority and marks the packet
with the new 802.1p priority. The following table lists the default mappings of hardware forwarding
queues to 802.1p priorities on the FSX.
Default mapping of forwarding queues to 802.1p priorities TABLE 12
Forwarding queue qosp0 qosp1 qosp2 qosp3 qosp4 qosp5 qosp6 qosp7
802.1p 0 1 2 3 4 5 6 7
The complete CLI syntax for 802.1p priority marking and internal priority marking is shown in Extended
numbered ACL configuration on page 112 and Extended named ACL configuration on page 118. The
following shows the syntax specific to these features.
Syntax:...dscp-marking 0-63 802.1p-priority-marking 0-7 internal-priority-marking 0-7
Using an ACL to change the forwarding queue
FastIron Ethernet Switch Security Configuration Guide 139
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