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Download EPUBEqual-cost Multi-path Routing (ECMP) Hashing Alternatives for IPv4/IPv6
A new set of hashing options are available to control traffic distribution of IPv4 or IPv6 packets among Equal-Cost Multi-path (ECMP) routes. You can dynamically choose between the existing ECMP hash method ("default") and the new “custom” hash method. Within each of these two hash methods, several hash algorithm options are available to vary traffic distribution among multiple equal-cost IP gateways.
Supported Platforms
Summit X450-G2, X460-G2, X670-G2, X770 series switches as standalone or in stacks.
New CLI Commands
configure iproute sharing hash-method custom {hash-algorithm [xor | crc-16 | crc-32 [lower | upper]]}
Changed CLI Commands
Changes are underlined.
configure iproute sharing {hash-method default} hash-algorithm crc [lower | upper]
The following show commands now display the current hash algorithm:
#show ipconfig ipv4 Use Redirects : Disabled ... Route Sharing Hash : CRC Lower, Default Method - or - Route Sharing Hash : XOR, Custom Method
#show ipconfig ipv6
Route Sharing : Disabled
...
Route Sharing Hash : CRC Lower, Default Method
- or -
Route Sharing Hash : XOR, Custom Method