Users Guide

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 1/2/1
interface tengigabitethernet 1/3/1
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 Host table on the device is a Hash table. In this scenario, a workaround does not exist for the user having
route entries programmed in host table.
When the command is issued, you are prompted with a warning message stating that the command configuration can take
effect on existing prefixes only when “clear ip route *” command is used. When you use the clear command, all the existing /32
IPv4 prefix route entries are reprogrammed in appropriate table. Also, all the other existing IPv4 entries are removed and
reprogrammed as a result of the clear command.
Dell Networking OS releases earlier than Release 9.3(0.1) stores IPv6 /128 entries in Host table since it cannot be written in LPM
table, and IPv4 0/32 route entries are written in LPM table itself to support the ECMP since ECMP was not supported in Host
table. On the system, unified forwarding table (UFT) is enabled, and the host table size is bigger compared to the LPM. When
you move the IPv4 /32 route prefix entry in host table, more space is obtained that can be utilized for other route prefix entries.
Equal Cost Multi-Path (ECMP) 286