Configuration Guide User guide

FastIron Configuration Guide 1743
53-1002494-02
QoS options for IP ACLs
• SX-48GCPP modules
• All FastIron SX modules released in hardware release 07.3.00 and later releases, including:
• SX-FI24GPP
• SX-FI24HF
• SX-FI2XG
• SX-FI8XG
Priority values range from 0 to 7.
Two new ACL parameters support this feature, one required for priority marking and one optional
for internal priority marking. These parameters apply to IP, and TCP, and UDP.
For IP
Brocade(config)#acc 104 per ip any any 802.1p-priority-marking 1
or the following command, which also assigns an optional internal-priority-marking value.
Brocade(config)#acc 104 per ip any any 802.1p-priority-marking 1
internal-priority-marking 5
Syntax: access-list <num(100-199)> permit ip any any 802.1p-priority-marking <priority value
(0-7)> [internal-priority-marking <value (0-7)>]
For TCP
Brocade(config)#acc 105 per tcp any any 802.1p-priority-marking 1
or the following command, which also assigns an optional internal-priority-marking value.
Brocade(config)#acc 105 per tcp any any 802.1p-priority-marking 1
internal-priority-marking 5
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
Brocade(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.
Brocade(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 <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 Table 285.