Table of Contents
Advertisement
Peak Burst Size (PBS)
A packet is colored red if it exceeds the PIR, yellow if it exceeds the CIR, but
not the PIR, and green if it does not exceed either. A trTCM is useful when a
peak rate needs to be enforced separately from a committed rate.
The CIR and PIR are measured in Kbps (not pps as indicated in the RFC),
the CBS in Kbytes, and the PBS in Kbytes. It is recommended that the CBS
and PBS be configured to be larger than the largest expected IP packet. A
class command in policy-map mode must be issued for an existing class-map
before entering this command.
Example
console(config-policy-classmap)#police-two-rate 100000000 64 1000000000 32
conform-action set-cos-transmit 7 exceed-action set-prec-transmit 7 violate-
action drop
policy-map
Use the policy-map command in Global Configuration mode to establish a
new DiffServ policy or to enter policy map configuration mode. To remove
the policy, use the no form of this command.
This command is not available on the N1500 Series switches.
NOTE:
Syntax
policy-map policyname [in|out]
no policy-map policyname
•
policyname— Specifies the DiffServ policy name as a unique case-
sensitive alphanumeric string of characters. (Range: 1–31 alphanumeric
characters.)
•
in—The policy is applied on ingress. Must be specified to create new
DiffServ policies. An existing policy can be selected without specifying
"in" or "out".
•
out—The policy is applied on egress. Either "in" or "out" must be
specified to create a new DiffServ policy. An existing policy may be
selected without the "in" or "out" parameter.
Layer 2 Switching Commands
701
Advertisement
Table of Contents
