diff --git a/modules/nw-metallb-bgp-limitations.adoc b/modules/nw-metallb-bgp-limitations.adoc index 6c972156ad..8901ac0f7d 100644 --- a/modules/nw-metallb-bgp-limitations.adoc +++ b/modules/nw-metallb-bgp-limitations.adoc @@ -18,6 +18,13 @@ However, you can anticipate that a change in the number of `speaker` pods affect To avoid or reduce the likelihood of a service interruption, you can specify a node selector when you add a BGP peer. By limiting the number of nodes that start BGP sessions, a fault on a node that does not have a BGP session has no affect on connections to the service. +[id="additional_network_and_metallb_limitation_{context}"] +== Additional Network and MetalLB cannot use same network + +There is a limitation when using the same VLAN for both MetalLB and an additional network interface on a source pod. In such cases, a connection failure occurs, when the MetalLB IP and the source pod share the same node. + +You can address this by ensuring the MetalLB IP is in another subnet so the traffic coming from a pod would take the default gateway, which is OVN-K and reach the destination via the OVN overlay. Alternatively use a MACVLAN interface instead of a VLAN interface. + [id="nw-metallb-bgp-limitations-single-asn_{context}"] == Support for a single ASN and a single router ID only