Command Line Reference Guide

460 | Equal Cost Multi-Path
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ipv6 ecmp-deterministic
e
Deterministic ECMP Next Hop arranges all ECMPs in order before writing them into the CAM. For
example, suppose the RTM learns 8 ECMPs in the order that the protocols and interfaces came up. In
this case, the FIB and CAM sort them so that the ECMPs are always arranged.This implementation
ensures that every chassis having the same prefixes orders the ECMPs the same.
With 8 or less ECMPs, the ordering is lexicographic and deterministic. With more than 8 ECMPs,
ordering is deterministic, but it is not in lexicographic order.
Syntax
ipv6 ecmp-deterministic
Defaults
Disabled
Command Modes
CONFIGURATION
Command
History
Usage
Information
After enabling IPv6 Deterministic ECMP, traffic loss occurs for a few milliseconds while FTOS sorts
the CAM entries.
Version 8.3.1.0 Introduced on E-Series.