A method comprising: selecting, by a first virtual routing node (1018, 1020) of a single-chassis network device having a plurality of forwarding components and a plurality of fabric links coupling respective pairs of the plurality of forwarding components at respective fabric interfaces of the plurality of forwarding components, a fabric interface of a forwarding component of the plurality of forwarding components that has an egress interface toward a network destination and that is associated with the first virtual routing: node; advertising, by the first virtual routing node to a second virtual routing node (1018, 1020) of the single-chassis network device, the fabric interface as a next hop for the network destination and a label for use in establishing a transport label switched path "LSP"; and in response to receiving, by the second virtual routing node, the fabric interface and the label: updating by the second virtual routing node, stored routing information to replace an aggregated fabric interface with the fabric interface as next hop for the network destination, wherein the aggregated fabric interface is a logical interface associated with a logical link connecting the first virtual routing node and the second virtual routing node, the logical link logically representing multiple fabric links of the plurality of fabric links, wherein the fabric interface is a member of the aggregated fabric interface, computing, by the second virtual routing node, a path for the transport LSP to include the fabric interface, and establishing, by the second virtual routing node, the transport LSP along the computed path using the label. selecting, by a first virtual routing node (1018, 1020) of a single-chassis network device having a plurality of forwarding components and a plurality of fabric links coupling respective pairs of the plurality of forwarding components at respective fabric interfaces of the plurality of forwarding components, a fabric interface of a forwarding component of the plurality of forwarding components that has an egress interface toward a network destination and that is associated with the first virtual routing: node; advertising, by the first virtual routing node to a second virtual routing node (1018, 1020) of the single-chassis network device, the fabric interface as a next hop for the network destination and a label for use in establishing a transport label switched path "LSP"; and in response to receiving, by the second virtual routing node, the fabric interface and the label: updating by the second virtual routing node, stored routing information to replace an aggregated fabric interface with the fabric interface as next hop for the network destination, wherein the aggregated fabric interface is a logical interface associated with a logical link connecting the first virtual routing node and the second virtual routing node, the logical link logically representing multiple fabric links of the plurality of fabric links, wherein the fabric interface is a member of the aggregated fabric interface, computing, by the second virtual routing node, a path for the transport LSP to include the fabric interface, and establishing, by the second virtual routing node, the transport LSP along the computed path using the label. updating by the second virtual routing node, stored routing information to replace an aggregated fabric interface with the fabric interface as next hop for the network destination, wherein the aggregated fabric interface is a logical interface associated with a logical link connecting the first virtual routing node and the second virtual routing node, the logical link logically representing multiple fabric links of the plurality of fabric links, wherein the fabric interface is a member of the aggregated fabric interface, computing, by the second virtual routing node, a path for the transport LSP to include the fabric interface, and establishing, by the second virtual routing node, the transport LSP along the computed path using the label.