The configuration would work fine for underlay due to ip routing ipv6 interfaces being present. For overlay the switch generates the correct BGP update however doesn't know how to route traffic without the knob in the overlay.
ip routing ipv6 interfaces vrf transit
Is mandatory so that the routing can be done for the VRF using iBGP over the peer-link. Otherwise traffic will be black-holed in case of uplink convergence.
The above config in turn should remove the config from running-config:
If this would be tweaked for the VRF template that would solve the problem.
` @cached_property
def ip_routing_ipv6_interfaces(self) -> bool | None:
"""
ip_routing_ipv6_interfaces set based on underlay_rfc5549 variable
"""
if get(self._hostvars, "underlay_rfc5549") is True:
return True
return None`
Which component(s) of AVD impacted
eos_designs
How do you run AVD ?
Ansible CLI (with virtual-env or native python)
Steps to reproduce
If you configure RFC 5549 and you have MLAG iBGP peers in VRFs this will not generate the config `ip routing ipv6 interfaces vrf transit` which is required for routing of IPv4 packets with IPv6 next-hops.
This works well for the underlay when using RFC5549.
Relevant log output
No response
Contributing Guide
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Issue Summary
The configuration would work fine for underlay due to
ip routing ipv6 interfaces
being present. For overlay the switch generates the correct BGP update however doesn't know how to route traffic without the knob in the overlay.ip routing ipv6 interfaces vrf transit
Is mandatory so that the routing can be done for the VRF using iBGP over the peer-link. Otherwise traffic will be black-holed in case of uplink convergence.
The above config in turn should remove the config from running-config:
ip routing vrf transit
To enable:
If this would be tweaked for the VRF template that would solve the problem.
Which component(s) of AVD impacted
eos_designs
How do you run AVD ?
Ansible CLI (with virtual-env or native python)
Steps to reproduce
Relevant log output
No response
Contributing Guide