Dell Force10 TeraScale E Series - Page 474

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Parameters
Defaults
0 for hash-algorithm value on TeraScale and ExaScale
IPSA and IPDA mask value is FF for line card
Command Modes
CONFIGURATION
Command
History
Usage
Information
Set the he default hash-algorithm method on ExaScale systems to ensure CRC is not used for LAG. For
example, hash-algorithm ecmp xor lag checksum nh-ecmp checksum
To achieve the functionality of hash-align on the ExaScale platform, do not use CRC as a
hash-algorithm method
The hash value calculated with the hash-algorithm command is unique to the entire chassis. The hash
algorithm command with the line card option changes the hash for a particular line card by applying
the mask specified in the IPSA and IPDA fields.
The line card option is applicable with the lag-hash-align microcode only (refer to cam-profile
(Config)). Any other microcode returns an error message as follows:
algorithm-number
Enter the algorithm number.
Range: 0 to 47
Note: For EtherScale, range 0 to 15 is valid; 16 to 47 will be considered
as 15.
ecmp hash algorithm
value
TeraScale and ExaScale Only: Enter the keyword ecmp followed by the ECMP
hash algorithm value.
Range: 0 to 47
lag hash algorithm
value
TeraScale and ExaScale Only: Enter the keyword lag followed by the LAG hash
algorithm value.
Range: 0 to 47
nh-ecmp hash
algorithm value
(OPTIONAL) Enter the keyword nh-ecmp followed by the ECMP hash
algorithm value.
linecard number (OPTIONAL) TeraScale and ExaScale Only: Enter the keyword linecard
followed by the line card slot number.
Range: 0 to 13 on an E1200/E1200i, 0 to 6 on an E600/E600i, and 0 to 5 on an
E300
ip-sa-mask value (OPTIONAL) Enter the keyword ip-sa-mask followed by the ECMP/LAG
hash mask value.
Range: 0 to FF
Default: FF
ip-da-mask value (OPTIONAL) Enter the keyword ip-da-mask followed by the ECMP/LAG
hash mask value.
Range: 0 to FF
Default: FF
Version 8.1.1.0 Introduced on E-Series ExaScale
Version 7.8.1.0 Added nh-ecmp option
Version 7.7.1.1 Added nh-ecmp option
Version 6.5.1.0 Added support for the line card option on TeraScale only
Version 6.3.1.0 Added the support for ECMP and LAG on TeraScale only