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Dell SmartFabric OS10 User Guide Release 10.5.3

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Deployment considerations

  • Anycast IP gateway feature works only when VLT configurations are present in the switch. If you enable this feature without VLT domain configuration, the anycast IP gateway configuration remains inactive.
  • For anycast IP to work in VLT domain, configure the same anycast IPv4 or IPv6 address and same global virtual MAC address on both VLT nodes.
  • When you use VRRP MAC as an anycast gateway MAC, do not use the underlying VRRP group ID in VLANs or interfaces where you configured VRRP. Use a non-VRRP MAC as the anycast gateway MAC to avoid such conflicts.
  • Anycast IP gateway routing and VRRP are mutually exclusive. You cannot configure both simultaneously on VLANs.
  • You can enable the anycast IP gateway for up to 512 Layer 3 (L3) VLANs.
  • Ensure that the anycast IPv4 or IPv6 address is different from the primary IPv4 or IPv6 address, respectively. For IPv6, you can configure more than one primary IP address. Even when more than one primary IPv6 addresses or subnets are configured, you can only configure one IPv6 address as gateway IP address.
  • To ping an IPv6 host present in a remote VLAN, use the ping -I command and specify the interface IP address. The -I option is not required when you ping an IPv6 local host in a VLAN. For more information, see ping.

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