Method for an improved deployment and use of network nodes of a switching fabric of a data center or within a central office point of delivery of a broadband access network of a telecommunications network, wherein the switching fabric comprises a plurality of spine network nodes (101, 102) and a plurality of leaf network nodes (201, 202, 203, 204), wherein - within the switching fabric considered - each one of the plurality of spine network nodes (101, 102) is connected with each one of the plurality of leaf network nodes (201, 202, 203, 204), wherein each one of the plurality of leaf network nodes (201, 202, 203, 204) is assigned an autonomous system number information, and wherein the plurality of spine network nodes (101, 102) is assigned a further autonomous system number information, wherein in order to deploy a specific leaf network node out of the plurality of leaf network node (201, 202, 203, 204), the method comprises the following steps: -- in a first step, the specific leaf network node transmits a request message to a management local area network server node, -- in a second step, subsequent to the first step, the specific leaf network node receives a response message from the management local area network server node, -- in a third step, subsequent to the second step, the specific leaf network node activates a link interface towards at least one of the plurality of spine network nodes (101, 102) wherein in a fourth step, subsequent to the second step and prior to or during the third step, the specific leaf network node determines -- the autonomous system number information and/or -- a IPv6 loopback internet protocol address to be used by the specific leaf network node towards at least one of the plurality of spine network nodes (101, 102), wherein the autonomous system number information is determined, by the specific leaf network node, based on a unique node identification information, obtained, during the second step, from the management local area network server node. wherein the switching fabric comprises a plurality of spine network nodes (101, 102) and a plurality of leaf network nodes (201, 202, 203, 204), wherein - within the switching fabric considered - each one of the plurality of spine network nodes (101, 102) is connected with each one of the plurality of leaf network nodes (201, 202, 203, 204), wherein each one of the plurality of leaf network nodes (201, 202, 203, 204) is assigned an autonomous system number information, and wherein the plurality of spine network nodes (101, 102) is assigned a further autonomous system number information, wherein in order to deploy a specific leaf network node out of the plurality of leaf network node (201, 202, 203, 204), the method comprises the following steps: -- in a first step, the specific leaf network node transmits a request message to a management local area network server node, -- in a second step, subsequent to the first step, the specific leaf network node receives a response message from the management local area network server node, -- in a third step, subsequent to the second step, the specific leaf network node activates a link interface towards at least one of the plurality of spine network nodes (101, 102) -- in a first step, the specific leaf network node transmits a request message to a management local area network server node, -- in a second step, subsequent to the first step, the specific leaf network node receives a response message from the management local area network server node, -- in a third step, subsequent to the second step, the specific leaf network node activates a link interface towards at least one of the plurality of spine network nodes (101, 102) wherein in a fourth step, subsequent to the second step and prior to or during the third step, the specific leaf network node determines -- the autonomous system number information and/or -- a IPv6 loopback internet protocol address -- the autonomous system number information and/or -- a IPv6 loopback internet protocol address to be used by the specific leaf network node towards at least one of the plurality of spine network nodes (101, 102), wherein the autonomous system number information is determined, by the specific leaf network node, based on a unique node identification information, obtained, during the second step, from the management local area network server node.