A virtual router configured for ECMP indicates in the Forwarding Information Base (FIB) table which routes are ECMP routes. An ECMP flag (E) for a route indicates that it is participating in ECMP for the egress interface to the next hop for that route. To verify ECMP, use the following procedure to look at the FIB and confirm that some routes are equal-cost multiple paths.
Confirm That Routes Are Equal-Cost Multiple Paths
Select Network > Virtual Routers.
In the row of the virtual router for which you enabled ECMP, click More Runtime Stats.
Select Routing > Forwarding Table to see the FIB. In the table, note that multiple routes to the same Destination (out a different Interface) have the E flag. An asterisk ( *) denotes the preferred path for the ECMP group.

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