BGP Labeled Unicast prefix SID

BGP labeled unicast can carry segment routing global block label range and index information through the prefix segment attribute. With this feature we support segment routing using the BGP labeled unicast prefix segments and the MPLS data plane in medium to large scaled data centers. The controller directs the server to assign a stack- of labels to an incoming packet based on the available network state information. The assigned label stack avoids congested paths and steers the packet through a best available path. To configure and advertise the SRGB label range specifically for BGP include the source-packet-routing srgb start-label start-label index-range index-rante and advertise-srgb configuration statements at the [edit protocols bgp] hierarchy level. To advertise prefix SIDs to external BGP peers, include the advertise-prefix-sid configuration statement at the [edit protocols bgp] hierarchy level. You can configure this statement globally or for specific BGP groups or BGP neighbors.