A sleeping link waking method, comprising: receiving, by a first router, a first Link State Protocol Data Unit, LSP, packet sent by a management router, wherein the first LSP packet comprises a first Type, Length, and Value,TLV, and the first TLV is used to determine a sleeping link to be woken, wherein the first TLV comprises a link record, and the link record comprises a primary Media Access Control, MAC, address and a secondary MAC address; determining, by the first router, according to the first TLV, the sleeping link to be woken; and waking, by the first router, the sleeping link, wherein the waking the sleeping link comprises waking a line card comprised in the first router connected to the sleeping link, wherein the line card is determined according to a second router corresponding to the secondary MAC address; sending, by the first router, a second LSP packet, wherein the second LSP packet is used to notify the second router connected to the first router that the sleeping link has entered the woken state; wherein the determining, by the first router according to the first TLV, the sleeping link to be woken comprises: parsing, by the first router, the first LSP packet, to acquire the first TLV; reading, by the first router, the first TLV, to acquire the link record comprised in the first TLV; and determining, by the first router, that the sleeping link to be woken is a link marked by the link record; wherein the determining, by the first router, that the sleeping link to be woken is a link marked by the link record comprises: determining, by the first router, that the sleeping link to be woken is a link between the first router and the second router, wherein the first router is a router corresponding to the primary MAC address in the link record, and the second router is the router corresponding to the secondary MAC address in the link record. receiving, by a first router, a first Link State Protocol Data Unit, LSP, packet sent by a management router, wherein the first LSP packet comprises a first Type, Length, and Value,TLV, and the first TLV is used to determine a sleeping link to be woken, wherein the first TLV comprises a link record, and the link record comprises a primary Media Access Control, MAC, address and a secondary MAC address; determining, by the first router, according to the first TLV, the sleeping link to be woken; and waking, by the first router, the sleeping link, wherein the waking the sleeping link comprises waking a line card comprised in the first router connected to the sleeping link, wherein the line card is determined according to a second router corresponding to the secondary MAC address; sending, by the first router, a second LSP packet, wherein the second LSP packet is used to notify the second router connected to the first router that the sleeping link has entered the woken state; wherein the determining, by the first router according to the first TLV, the sleeping link to be woken comprises: parsing, by the first router, the first LSP packet, to acquire the first TLV; reading, by the first router, the first TLV, to acquire the link record comprised in the first TLV; and determining, by the first router, that the sleeping link to be woken is a link marked by the link record; parsing, by the first router, the first LSP packet, to acquire the first TLV; reading, by the first router, the first TLV, to acquire the link record comprised in the first TLV; and determining, by the first router, that the sleeping link to be woken is a link marked by the link record; wherein the determining, by the first router, that the sleeping link to be woken is a link marked by the link record comprises: determining, by the first router, that the sleeping link to be woken is a link between the first router and the second router, wherein the first router is a router corresponding to the primary MAC address in the link record, and the second router is the router corresponding to the secondary MAC address in the link record. determining, by the first router, that the sleeping link to be woken is a link between the first router and the second router, wherein the first router is a router corresponding to the primary MAC address in the link record, and the second router is the router corresponding to the secondary MAC address in the link record.