Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010, Руководство по настройке

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Table 20: Load Balancing Algorithm Parameters (continued)
Description Keyword
Specifies the amount of imbalance in the LAG that triggers the algorithm
to start rebalancing. The default is 0 percent. Optionally, you can specify
one of the following units of measure:
■
percent —Specifies that the amount of imbalance is measured as
a percentage of the average load per link. The range is 0–100
percent.
For example, the average load per link in a LAG is 500. Specifying
start-threshold 5 percent indicates that the algorithm rebalances
any link that deviates from the average load per link by 25 (5
percent of 500).
■
subscribers —Specifies that the amount of imbalance is measured
by the number of subscribers from the average subscriber count
in the LAG. The range is 0–10000.
For example, specifying start-threshold 20 subscribers indicates
that the algorithm rebalances any link with a subscriber count that
differs from the average subscriber count by more than 20.
start-threshold
Specifies the amount of imbalance in the LAG that triggers the algorithm
to stop rebalancing. The algorithm continues rebalancing until this value
is reached. The default is 0 percent. Optionally, you can specify one of
the following units of measure:
■
percent —Specifies that the amount of imbalance is measured as
a percentage of the average load per link. The range is 0–100
percent.
For example, the average load per link in a LAG is 500. Specifying
the
stop-threshold 2 percent command indicates that the algorithm
stops within 10 of 500 (2 percent of 500). In this case, the algorithm
stops when the links are at 510 and 490.
■
subscribers —Specifies that the amount of imbalance is measured
by the number of subscribers. The range is 0–10000.
For example, specifying stop-threshold 100 subscribers indicates
that the algorithm continues until each link in the LAG is within
100 subscribers of the average subscriber count.
stop-threshold
Specifies the maximum number of links to rebalance in the LAG per
period. The default is 100 percent. Optionally, you can specify one of
the following units of measure:
■
percent —Specifies that the maximum number of links is measured
as a percentage of the total links. The range is 0–100 percent.
For example, specifying maximum-improvement 1 percent
indicates that the algorithm rebalances 10 links per period (1
percent of 1000).
■
subscribers —Specifies that the maximum number of links is
measured by the number of subscribers. The range is 0–10000
subscribers.
For example, specifying maximum-improvement 40 subscribers
indicates that the algorithm rebalances 40 subscribers per period.
maximum-
improvement
194 ■
Configuring Load–Rebalancing Parameters
JUNOSe 11.1.x Quality of Service Configuration Guide