mplsTunnelARHopLspId 1.3.6.1.4.1.11.2.3.7.11.12.2.15.15.3.2.7.1.9

If mplsTunnelARHopAddrType is set to lspid(4), then this value will contain the LSP ID of this hop. This object is otherwise insignificant and should contain a value of 0 to indicate this fact.