Configuring VXLANs > Port Replication for Virtual Link Extensions > Sending Network Traffic to an ECMP Group
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Sending Network Traffic to an ECMP Group
Static ECMP groups become active only when associated with a vRouter. Netvisor assigns a vRouter to a static ECMP group local to each node. Once a static ECMP group is associated with a vRouter, Netvisor creates an ECMP group in hardware. You can add multiple nexthops to an ECMP group. If a Layer 3 entry is active for a given nexthop, the associated egress ID is added to ECMP group.
A static ECMP group can be associated with a vFlow using the action to-ecmp-group and the action value as
action-to-ecmp-group-value. If a vFlow using ECMP group is a hit, Netvisor hashes traffic over corresponding nexthops based on Layer 3 and Layer 4 fields in the packet. You cannot delete a static ECMP group while it is in use by any vFlow.
The following new commands and parameters are added to support this feature:
CLI network-admin@Spine1>static-ecmp-group-create
group-name group-name-string
Specify an ECMP group name.
scope local|cluster|fabric
Specify the scope of the group.
vrouter-name vrouter-name
Specify the vRouter name.
CLI network-admin@Spine1>static-ecmp-group-delete
group-name group-name-string
Specify an ECMP group name.
CLI network-admin@Spine1>static-ecmp-group-modify
group-name group-name-string
Specify an ECMP group name.
scope local|cluster|fabric
Specify the scope of the group.
vrouter-name vrouter-name
Specify the vRouter name.
CLI network-admin@Spine1>static-ecmp-group-show
group-name group-name-string
Displays an ECMP group name.
scope local|cluster|fabric
Displays the scope of the group.
vrouter-name vrouter-name
Displays the vRouter name.
vrid vrid-number
Displays the vRouter ID.
hw-ecmp-id hw-ecmp-id-number
Displays the hardware ID.
CLI network-admin@Spine1>static-ecmp-group-show
group-name scope vrouter-name vrid hw-ecmp-id
---------- ----- ------------ ---- ----------
gr1 local              -1 -1
 
CLI network-admin@Spine1>static-ecmp-group-nh-add
group-name group-name-string
Specify the name of the ECMP group.
ip ip-address
Specify the IP address for the next hop.
CLI network-admin@Spine1>static-ecmp-group-nh-remove
group-name group-name-string
Specify the name of the ECMP group.
ip ip-address
Specify the IP address for the next hop.
CLI network-admin@Spine1>static-ecmp-group-nh-show
group-name group-name-string
Specify the name of the ECMP group.
ip ip-address
Specify the IP address for the next hop.
CLI network-admin@Spine1>static-ecmp-group-nh-show
group-name group-name-string
Displays the name of the ECMP group.
ip ip-address
Displays the IP address for the next hop.
vlan vlan-id
Displays the VLAN of the next hop.
egress-id egress-id-number
Displays the hardware egress ID.