Concept Guide

Support for ECMP in host table
ECMP support in the L3 host table is available on the system. IPv6 /128 prex route entries and IPv4 /32 prex entries which are moved to
host table can have ECMP. For other platforms, only the IPv6 /128 prex route entries is stored in the L3 host table without ECMP
support.
The software supports a command to program IPv6 /128 route prexes in the host table.
The output of show IPv6 cam command has been enhanced to include the ECMP eld in the Neighbor table of Ipv6 CAM. The sample
output is displayed as follows, which is similar to the prex table.
The following is the portion of the example output:
Neighbor Mac-Addr Port Vid EC
------------------------------------- -------------------------
[ 132] 20::1 00:00:20:d5:ec:a0 Fo 1/49/1 0 1
[ 132] 20::1 00:00:20:d5:ec:a1 Fo 1/50/1 0 1
Support for moving /128 IPv6 Prexes and /32 IPv4 Prexes
The software supports a command to program IPv6 /128 route prexes in the route table. You can dene IPv6 /128 route prexes in the
route table using the ipv6 unicast-host-routecommand. You can also dene IPv4 /32 route prexes in the host table using the
ipv4 unicast-host-routecommand.
Equal Cost Multi-Path (ECMP)
323