Enabling A Catena Instance - Cisco Nexus 9000 Series Configuration Manual

Configuring the Catena Solution
Command or Action
] load-balance { port-channel | method} {
src-ip | dst-ip}
Example:
switch(config-catena)# 10 access-list
acl11 vlan-group vg1 egress-port-group
pg1 mode forward
Example:
switch(config-catena)# 20 access-list
acl12 ingress-port-group pg1
egress-device-group s-dg-1 mode forward
Step 5
no shut
Example:
switch (config-catena-instance)# no shut
Step 6 copy running-config startup-config
Example:
switch# copy running-config
startup-config

Enabling a Catena Instance

Before You Begin
Check that you have completed the following:
Purpose
• vlan-group vg-name—Specifies the VLAN group.
• ingress-port-group ipg-name—Specifies the ingress port group.
• egress-port-group epg-name—Specifies the egress port group.
• mode mode—Specifies the mode types-drop, bypass, or forward -
for the received packets.
• load-balance —Specifies the type of load balancing for catena traffic.
◦port-channel—Specifies hash based load balancing.
◦src-ip | dst-ip—Specifies TCAM based load-balancing.
The first example describes a transparent mode (Layer 2) service chain.
A Layer 2 chain requires that you create and define both a port and a
VLAN group.
The second example describes a routed mode (Layer 3) chain. A Layer 3
chain requires that you create and define both a port and an egress device
group.
Currently, you must configure separate instances for Layer 2 and Layer
3 modes.
A catena instance can comprise multiple chains that are independent of
each other. The traffic in each chain is forwarded as defined. However, if
there is an overlap between packets from different chains at the ingress
port, then all the chains configured on that ingress interface will be
evaluated. If a match is found on the ingress interface, then the matching
chain is accepted and forwarded.
Enables the catena instance.
(Optional)
Copies the running configuration to the startup configuration.
Cisco Nexus 9000 Series NX-OS Catena Configuration Guide, Release 7.x
Enabling a Catena Instance
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