Policer Actions
The following actions are supported by policers:
- discard—Discard a packet that exceeds the rate limits.
- loss-priority level—Set the loss priority level.
- forwarding-class class-name—Specify the forwarding class for any class-name already configured.
 | Note: The loss-priority action is supported only on MX Series routers; M120 and M320 routers; and M7i and M10i routers with the Enhanced CFEB (CFEB-E). |
Policer actions are implicit or explicit and vary by policer type. The term implicit means that Junos OS performs the action automatically. The term explicit means that the action is not configurable. Table 1 describes the policer actions.
Table 1: Policer Actions
Policer | Marking | Implicit Action | Configurable Action |
|---|---|---|---|
Single-rate two-color | Green (conforming) | Assign low loss priority | None |
Red (nonconforming) | None | Assign low or high loss priority, assign a forwarding
class, or discard | |
Single-rate three-color | Green (conforming) | Assign low loss priority | None |
Yellow (above the CIR and CBS) | Assign medium-high loss priority | None | |
Red (above the EBS) | Assign high loss priority | Discard | |
Two-rate three-color | Green (conforming) | Assign low loss priority | None |
Yellow (above the CIR and CBS) | Assign medium-high loss priority | None | |
Red (above the PIR and PBS) | Assign high loss priority | Discard |
