Alcatel-Lucent 060321-10, Rev. B, Cli Reference Manual

Page: 187 / 2354

Distributed Spanning Tree Commands spantree vlan path-cost
OmniSwitch CLI Reference Guide March 2011 page 5-45
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Is a 16-bit path cost value is in use and the path_cost is set to zero, the following IEEE 802.1D
recommended default path cost values based on link speed are used:
•
If a 32-bit path cost value is in use and the path_cost for a link aggregate is set to zero, the following
default values based on link speed and link aggregate size are used:
•
If a 16-bit path cost value is in use and the path_cost for a link aggregate is set to zero, the following
default values based on link speed and link aggregate size are used. Note that for Gigabit ports the
aggregate size is not applicable in this case:
1 GB 20,000
10 Gbps 2,000
Link Speed
IEEE 802.1D
Recommended Value
4 Mbps 250
10 Mbps 100
16 Mbps 62
100 Mbps 19
1 Gbps 4
10 Gbps 2
Link Speed
Aggregate Size
(number of links)
Default Path
Cost Value
10 MB 2 1,200,000
4 800,000
8 600,000
100 MB 2 120,000
4 80,000
8 60,000
1 GB 2 12,000
4 8,000
8 6,000
10 GB 2 1,200
4 800
8 600
Link Speed
IEEE 802.1D
Recommended Value