Suppressing Arp - Cisco Nexus 9000 Series Configuration Manual

Configuring VXLAN BGP EVPN
Step 7
Step 8
Step 9
Step 10

Suppressing ARP

Suppressing ARP includes changing the size of the ACL ternary content addressable memory (TCAM) regions
in the hardware.
Note For information on configuring ACL TCAM regions, see the Configuring IP ACLs chapter of the
Nexus 9000 Series NX-OS Security Configuration
Procedure
Step 1
Step 2
Step 3
Step 4
Command or Action
address-family l2vpn evpn
disable-peer-as-check
send-community extended
route-map permitall out
Command or Action
hardware access-list tcam
region arp-ether size
double-wide
interface nve 1
member vni vni-id
suppress-arp
Cisco Nexus 9000 Series NX-OS VXLAN Configuration Guide, Release 7.x
Purpose
Configure address family Layer 2 VPN EVPN under the
BGP neighbor.
Disables checking the peer AS number during route
advertisement. Configure this parameter on the spine for
eBGP when all leafs are using the same AS but the spines
have a different AS than leafs.
Note Required for
eBGP.
Configures community for BGP neighbors.
Applies route-map to keep the next-hop unchanged.
Note Required for
eBGP.
Guide.
Purpose
Configure TCAM region to suppress ARP.
tcam-size—TCAM size. The size has to be a multiple of 256.
If the size is more than 256, it has to be a multiple of 512.
Reload is required for the TCAM configuration to be
Note
in effect.
Configuring the hardware access-list tcam region
Note
arp-ether size double-wide is not required on Cisco
Nexus 9200 Series switches.
Create the network virtualization endpoint (NVE) interface.
Specify VNI ID.
Configure to suppress ARP under Layer 2 VNI.
Suppressing ARP
Cisco
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