topic VDX- static ARP issue in Data Center (VDX)

VDX- static ARP issue

pawarpavan — Sat, 10 Jun 2023 11:36:47 GMT

Hello VDX Experts,

Need assistance as I'm unable to create static ARP entry :

Config snip :

extreme01#show running-config rbridge-id 1 interface ve 20

rbridge-id 1

interface Ve 20

vrf forwarding RED

ip proxy-arp

ip arp learn-any

ip address 192.168.20.1/24

no shutdown

extreme01# show run int vl 20

interface Vlan 20

name TEST_VLAN_20

extreme01# show run int te 1/0/3

interface TenGigabitEthernet 1/0/3

switchport

switchport mode trunk

switchport trunk allowed vlan add 20

switchport trunk tag native-vlan

spanning-tree shutdown

no fabric isl enable

no fabric trunk enable

no shutdown

extreme01# show running-config rbridge-id 1 vrf RED

rbridge-id 1

vrf RED

rd 10:10

address-family ipv4 unicast

ip route 1.1.1.0/24 192.168.20.100

arp 192.168.20.100 0000.00a2.1100 interface TenGigabitEthernet 1/0/3

extreme01# show run | i mac

mac-address-table static 0000.00a2.1100 forward tengigabitethernet 1/0/3 vlan 20

extreme01# show arp vrf RED

Entries in VRF RED : 1

Address Mac-address L3 Interface L2 Interface Age Type

--------------------------------------------------------------------------------

192.168.20.100 UnResolved Ve 20 UnResolv 00:00:00 PreArp

As ARP is unresolved so traffic destined to IP subnet 1.1.1.0/24 is dropping.

please assist with static ARP.

Re: VDX- static ARP issue

Truyen_Phan — Mon, 12 Jun 2023 18:04:35 GMT

I see that you did a static mac and static arp entry. Can you confirm if the mac is being learned if you remove the static mac entry? Can the VDX ping 192.168.20.100?

Re: VDX- static ARP issue

pawarpavan — Tue, 13 Jun 2023 05:44:21 GMT

MAC is learned and I'm not able to ping 192.168.20.100 as ARP is unresolved.
The server connected to interface Te 1/0/3 is silent and it does not handle ARP traffic but if we send a data packet to it then it responds.
so my moto is to send the packet out of Te 1/0/3 if the next hop is 192.168.20.100.

Re: VDX- static ARP issue

Truyen_Phan — Tue, 13 Jun 2023 06:56:38 GMT

Can you try clearing the arp with the no-refresh option, so the dynamic arp learned entry is removed?

clear arp ip 192.168.20.100 no-refresh vrf RED

Then, try to ping it from the VDX.