Interface Configuration Guide 7705 SAR Interfaces
Edition: 01 3HE 11011 AAAC TQZZA 367
Description This command configures a policing action to rate-limit the ingress traffic. Ingress-rate
enforcement uses dedicated hardware for rate limiting, however software configuration is
required at the port level (ingress-rate limiter) to ensure that the network processor or adapter
card or port never receives more traffic than they are optimized for.
The configured ingress rate ensures that the network processor does not receive traffic
greater than this configured value on a per-port basis. Once the ingress-rate value is reached,
all subsequent frames are dropped. The ingress-rate limiter drops excess traffic without
classifying whether the traffic has a higher or lower priority.
Similar to the egress-rate configuration, the ingress-rate configuration survives port mode
changes. If a port mode is changed (for example, from access to network mode), the ingress
rate and configured CBS still remain when the port comes back up.
The no form of this command returns the value to the default.
Default no ingress-rate
Parameters ingress-rate — the ingress rate in Mb/s
Values 1 to 10000
cbs — specifies the committed burst size that the hard policer can accept while
complying with the configured ingress rate. Set the cbs value to at least two times
the ingress packet size so that the datapath can make a proper policing and
forwarding decision.
size — specifies the committed burst size in bytes or kilobytes. If configured in bytes, the
committed burst size must be a multiple of 256 bytes. The default value is 130816
bytes. If configured in kilobytes, the maximum value is 127.
Values [1 to 130816 or 1 to 127 | default]
Note: CBS is integrated with the ingress-rate command and you must always specify the
CBS size every time you configure the ingress rate. If you use the default CBS size, then
explicitly indicate that it is the CBS default.
To Next Page
Loading...
