Configuration Guide User guide

FastIron Configuration Guide 1775
53-1002494-02
Maximum number of traffic policies supported on a device
• When you define a TPD, reference the TPD in an ACL entry, and then apply the ACL to a VE in
the Layer 3 router code, the rate limit policy is accumulative for all of the ports in the port
region. If the VE or VLAN contains ports that are in different port regions, the rate limit policy is
applied per port region.
For example, TPD1 has a rate limit policy of 600M and is referenced in ACL 101. ACL 101 is
applied to VE 1, which contains ports e 1/11 to e 1/14. Because ports e 1/11 and 1/12 are
in a different port region than e 1/13 and 1/14, the rate limit policy will be 600M for ports e
1/11 and 1/12, and 600M for ports e 1/13 and 1/14.
Maximum number of traffic policies supported
on a device
The maximum number of supported active traffic policies is a system-wide parameter and depends
on the device you are configuring, as follows:
• By default, up to 1024 active traffic policies are supported on Layer 2 switches. This value is
fixed on Layer 2 switches and cannot be modified.
• For FastIron devices other than the FCX, the number of active traffic policies supported on
Layer 3 switches varies depending on the configuration and the available system memory. The
default value and also the maximum number of traffic policies supported on Layer 3 switches
is 50.
• On FCX devices, up to 1024 active traffic policies are supported on Layer 3 switches. This is
the default value as well as the maximum value.
NOTE
On FCX devices, by default 992 of the maximum of 1024 active traffic policies are applied. The
other 32 are reserved and the show traff command returns zero references/bindings beyond
the 992 traffic policies.
The show default values command displays the maximum number of traffic conditioners that
can be applied, in the hw-traffic-conditioner section of the results. The configurable tables and
their defaults and maximum values can be obtained using the show default command.
TABLE 289 CoS parameters for packets that use rate limiting traffic policies
Packet conformance level Packet DSCP value Traffic class and 802.1p priority
0 (Green)
or
1 (Yellow)
0 – 7 0 (lowest priority queue)
8 – 15 1
16 – 23 2
24 – 31 3
32 – 39 4
40 – 47 5
48 – 55 6
56 – 63 7 (highest priority queue)
2 (Red) N/A 0 (lowest priority queue)