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. 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.
