Service Egress and Ingress QoS Policies
Quality of Service Guide 271
The offered-profile-cir mode allocates four forwarding plane offered counters and four
traffic manager discard counters.
The offered-profile-cir mode is most useful when the policer is receiving trusted out-of-
profile and in-profile traffic and is also receiving untrusted packets that are being applied to
a defined CIR profiling rate. This mode differs from offered-limited-profile-cir mode in that
it expects both trusted in-profile and out-of-profile packets while still performing CIR
profiling on packets with untrusted markings. It is expected that in most cases where both
trusted and untrusted packets are received, the predominate case will not include trusted in-
profile packets making the offered-limited-profile-cir accounting mode acceptable.
The counters are used in the following manner:
1. offered-in-that-stayed-green-or-turned-red = profile in
2. offered-undefined-that-turned-green = priority high/low
3. offered-undefined-that-turned-yellow-or-red = priority high/low
4. offered-out-that-stayed-yellow-or-turned-red = profile out
5. dropped-in-that-stayed-green-or-turned-red = Same as 1
6. dropped-undefined-that-turned-green = Same as 2
7. dropped-undefined-that-turned-yellow-or-red = Same as 3
8. dropped-out-that-turned-yellow-or-red = Same as 4
9. forwarded-in-that-stayed-green = Derived from 1 - 5
10. forwarded-undefined-that-turned-green = Derived from 2 - 6
11. forwarded-undefined-that-turned-yellow = Derived from 3 - 7
12. forwarded-out-that-turned-yellow = Derived from 4 - 8
When collect-stats is enabled, the counters are used by the system to generate the following
statistics:
a. offered-in = 1
b. offered-out = 2 + 3 + 4
c. discard-in = 5 + 6
d. discard-out = 7 + 8
e. forward-in = 9 + 10
f. forward-out = 11 + 12
With offered-profile-cir enabled as the policer stat-mode, the SAP offered stats for the
policer returned via MIB query and CLI show commands will return the following values:
i. offered-high = 1
ii. offered-low = 4
iii. offered-undefined = 2 + 3
iv. offered-managed = 0 (IMPM managed packets are not redirected from the policer)
Counter 0 indicates that the SAP policer statistic returns a value of zero.
offered-priority-cir — Counter resource allocation: 4
The offered-priority-cir mode allocates four forwarding plane offered counters and four
traffic manager discard counters.
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