Alcatel-Lucent 7950 Quality Of Service Manual page 241

Table 27: Ingress HSMDA Queue Mapping Behavior Based on Forwarding Type
IES All packets matching
the FC
VPLS All packets matching
the FC
VPRN All packets matching
the FC
The forwarding class queue mappings may be modified at anytime. The sub-forwarding classes inherit the
parent forwarding classes queue mappings.
The no form of the command returns the HSMDA queue mapping for queue to the default mapping for the
forwarding class.
Parameters
queue-id — Configures a specific HSMDA queue.
Values
mbs
Syntax mbs {size [bytes | kilobytes] | default}
no mbs
Context config>qos>sap-egress>hsmda-queues>queues
Description This command is used to configure the policer's PIR leaky bucket's high priority violate threshold. The
high-prio-only command is applied to the MBS value to derive the bucket's low priority violate threshold.
For egress, trusted in-profile packets and un-trusted high priority packets use the policer's high priority
violate threshold while trusted out-of-profile and un-trusted low priority packets use the policer's low
priority violate threshold. At egress, in-profile packets use the policer's high priority violate threshold and
out-of-profile packets use the policer's low priority violate threshold.
The PIR bucket's violate threshold represent the maximum burst tolerance allowed by the policer. If the
policer's offered rate is equal to or less than the policer's defined rate, the PIR bucket depth hovers around
the 0 depth with spikes up to the maximum packet size in the offered load. If the offered rate increases
beyond the metering rate, the amount of data allowed above the rate is capped by the threshold. The low
priority violate threshold provides a smaller burst size for the lower priority traffic associated with the
7950 XRS Quality of Service Guide
Queue Mappings For Each Forwarding Type
Packets with Broad-
cast DA
Packets with Broad-
cast DA
Packets with Broad-
cast DA
1 — 8
BE Default: 1
L2 Default: 2
AF Default: 3
L1 Default: 4
H2 Default: 5
EF Default: 6
H1 Default: 7
NC Default: 8
IP Multicast Packets
Packets with Multi-
cast DA
IP Multicast Packets
None
Packets with Unicast
DA but Unknown in
FIB
None
Page 241