Modifying The Ecmp Group Threshold; Support For /128 Ipv6 And /32 Ipv4 Prefixes In Layer 3 Host Table And Lpm Table - Dell S6100 Configuration Manual

The range is from 1 to 64.
2 Add interfaces to the ECMP group bundle.
CONFIGURATION ECMP-GROUP mode
interface interface
3 Enable monitoring for the bundle.
CONFIGURATION ECMP-GROUP mode
link-bundle-monitor enable

Modifying the ECMP Group Threshold

You can customize the threshold percentage for monitoring ECMP group bundles.
To customize the ECMP group bundle threshold and to view the changes, use the following commands.
• Modify the threshold for monitoring ECMP group bundles.
CONFIGURATION mode
link-bundle-distribution trigger-threshold {percent}
The range is from 1 to 90%.
The default is 60%.
• Display details for an ECMP group bundle.
EXEC mode
show link-bundle-distribution ecmp-group ecmp-group-id
The range is from 1 to 64.
Viewing an ECMP Group
NOTE: An ecmp-group index is generated automatically for each unique ecmp-group when you configure multipath routes to the
same network. The system can generate a maximum of 512 unique ecmp-groups. The ecmp-group indices are generated in even
numbers (0, 2, 4, 6... 1022) and are for information only.
You can configure ecmp-group with id 2 for link bundle monitoring. This ecmp-group is different from the ecmp-group index 2 that is
created by configuring routes and is automatically generated. These two ecmp-groups are not related in any way.
Dell(conf-ecmp-group-5)#show config
!
ecmp-group 5
interface tengigabitethernet 1/1/2/1
interface tengigabitethernet 1/1/2/2
link-bundle-monitor enable
Dell(conf-ecmp-group-5)#
Support for /128 IPv6 and /32 IPv4 Prefixes in Layer 3 Host
Table and LPM Table
IPv6 enhancements utilize the capability on platform to program /128 IPv6 prefixes in LPM table and /32 IPv4 prefixes in Host table. Also
host table provides ECMP support for destination prefixes in the hardware. The platform uses the hardware chip that supports this
behavior and hence they can make use of this capability.
CLI commands are introduced to move /128 IPv6 prefix route entries and /32 IPv4 prefix route entries from Host table to LPM table and
vice versa. When moving the destination prefixes from Route to Host table, there is a possibility of getting into hash collision because the
308 Equal Cost Multi-Path (ECMP)