Configuration Guide User guide

FastIron Configuration Guide 1741
53-1002494-02
QoS options for IP ACLs
or
FastIron(config)#access-list 101 permit ip any any 802.1p-priority-marking
or
FastIron(config)#access-list 101 permit ip any any internal-priority-marking 6
The following command is not supported.
FastIron(config)#access-list 101 permit ip any any dscp-marking 43
802.1p-priority-marking 4 internal-priority-marking 6
Using an ACL to map the DSCP value
(DSCP CoS mapping)
NOTE
The dscp-cos-mapping option is supported on FSX and FESX devices only. It is not supported on
Stackable devices. This feature is not applicable to outbound traffic.
The dscp-cos-mapping option maps the DSCP value in incoming packets to a hardware table that
provides mapping of each of the 0 – 63 DSCP values, and distributes them among eight traffic
classes (internal priorities) and eight 802.1p priorities.
NOTE
The dscp-cos-mapping option overrides port-based priority settings.
By default, the Brocade device does the 802.1p to CoS mapping. If you want to change the priority
mapping to DSCP to CoS mapping, you must enter the following ACL statement.
permit ip any any dscp-cos-mapping
The complete CLI syntax for this feature is shown in “Extended numbered ACL configuration” on
page 1714 and “Extended named ACL configuration” on page 1720. The following shows the
syntax specific to the DSCP Cos mapping feature.
Syntax: ... [dscp-marking <dscp-value> dscp-cos-mapping]
or
Syntax: ...[dscp-cos-mapping]
NOTE
The dscp-cos-mapping option should not be used when assigning an 802.1p priority. To assign an
802.1p priority to a specific DSCP (using dscp-match), re-assign the DSCP value as well. For
example
FastIron(config)#access-list 100 permit ip any any dscp-match 0 dscp-marking 0
802.1p 0 internal 1