Quick Reference Guide

428 PowerConnect B-Series TI24X Configuration Guide
53-1002269-02
Maximum number of traffic policies supported on a device
17
• You can reference the same traffic policy in more than one ACL entry within an access list. For
example, two or more ACL statements in ACL 101 can reference a TPD named TPD1.
• You can reference the same traffic policy in more than one access list. For example, ACLs 101
and 102 could both reference a TPD named TPD1.
• To modify or delete an active traffic policy, you must first unbind the ACL that references the
traffic policy.
• When you define a TPD (when you enter the CLI command traffic-policy), explicit marking of
CoS parameters, such as traffic class and 802.1p priority, are not available on the device. In
the case of a TPD defining rate limiting, the device re-marks CoS parameters based on the
DSCP value in the packet header and the determined conformance level of the rate limited
traffic, as shown in Table 69.
• When you define a TPD, reference the TPD in an ACL entry, 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/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 11 to e 14. Because ports e 11 and 12 are in a
different port region than e 13 and14, the rate limit policy will be 600M for ports e 11 and 12,
and 600M for ports e 13 and 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 and on Layer 3 switches.
This value is fixed on Layer 2 switches and cannot be modified.
• 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 1024.
TABLE 69 CoS parameters for packets that use rate limiting traffic policies
If the packet conformance level is... and the packet DSCP value is... the device sets the traffic class and
802.1p priority to...
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)