Enabling ECMP globally
The Equal Cost MultiPath (ECMP) feature allows routers to determine up to four equal cost paths to the same destination prefix. The multiple paths can be used for load sharing of traffic and allows faster convergence to alternate paths. By maximizing load sharing among equal-cost paths, you can use your links between routers more efficiently when sending IP traffic. For more information about the ECMP feature, see Networking Concepts for the Passport 8000 Series Switch.
To configure the ECMP feature:
- From the Device Manager menu bar, choose IP Routing > IP.
| The IP dialog box opens with the Globals tab displayed. |
- In the EcmpEnable checkbox, click to enable (checked) or to disable (not checked) the ECMP feature. The default value is disabled (not checked).
- Enter your preferred number of equal cost paths. You can configure up to four equal cost paths to the same destination prefix.
| The default value is 1 when the EcmpEnable field is disabled. When the EcmpEnable field is enabled, the default is 4. The range for this value is 1 through 4 paths. |
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