Configuring Distributed Lag Rate - Alcatel-Lucent 7950 Quality Of Service Manual

Configuring Distributed LAG Rate

Configuring Distributed LAG Rate
The following output displays a sample configuration and explanation with and without dist-lag-
rate-shared.
*B:ALU-A>config>port# info
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*B:ALU-A>config>port# /configure lag 30
*B:ALU-A>config>lag# info
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*B:ALU-A>config>service>ies>if>sap# /configure qos port-scheduler-policy "psp"
*B:ALU-A>config>qos>port-sched-plcy# info
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Before enabling dist-lag-rate-shared, in the port-scheduler-policy psp, the max-rate achieved is
twice 413202 kbps 816Mbps. This is because LAG has members from two different cards.
Two port-scheduler-instances are created, one on each card with the max-rate of 413202 kbps.
This can be confirmed using the following show o/p.
Once dist-lag-rate-shared is enabled in port-scheduler-policy, this max-rate is enforced across all
members of the LAG.
*B:ALU-A>config>service>ies>if>sap# /show qos scheduler-hierarchy sap lag-30 egress detail
===============================================================================
Scheduler Hierarchy - Sap lag-30
===============================================================================
Egress Scheduler Policy :
-------------------------------------------------------------------------------
Legend :
(*) real-time dynamic value
(w) Wire rates
B Bytes
-------------------------------------------------------------------------------
Root (Egr)
| slot(2)
Page 472
ethernet
mode access
egress-scheduler-policy "psp"
autonegotiate limited
exit
no shutdown
description "Description For LAG Number 30"
mode access
port 2/1/6
port 2/1/10
port 3/2/1
port 3/2/2
no shutdown
max-rate 413202
7950 XRS Quality of Service Guide