Default Class Map Traffic Policing

The default class map (port-based) policing feature controls the amount of bandwidth consumed by a flow or an aggregate of flows.

The default class map is a port-based policing feature that controls the inbound (ingress) and outbound (egress) traffic rate on an individual port according to criteria that you define.

Consider the following when you configure the feature:

You can configure up to 1024 policy maps.
You can configure one default class map per policy map.
For ExtremeRouting SLX 9640 and ExtremeSwitching SLX 9540, you can configure up to 32656 policers (ingress - egress).
For ExtremeSwitching SLX 9150, you can configure up to 8000 policers (ingress - egress).
Traffic filtered by an ACL is not subject to default service policy policer.
Match default class map service policy is supported on ingress and egress interfaces.
BUM storm control and input service-policy features can coexist with each other. You can enable both at the same time on a given interface. BUM storm control has the highest precedence.
ACL-based, storm-control, and port-based rate limiting can coexist on the same interface. ACL-based rate limiting has the highest priority, followed by storm-control rate limiting, and then port-based rate limiting.
Control protocols are not rate-limited by the default class map service policy.
The default class service policy does support remarking or internal queue assignment.
Metering is performed on the packet as received on the wire. For example, including IPG and preamble, excluding CRC.
For port-based traffic policing, only FWD and DROP counters are supported.
SLX 9540 and SLX 9640
- FWD and DROP counters must use a counter profile other than default.
- Conformed: Shows FWD packets including green and yellow color packets.
- ( SLX 9640 and SLX 9540 only) Violated: Shows DROP packets including red color packets.
- ( SLX 9640 and SLX 9540 only) Exceed: Is always ZERO.