Patent ID: 11888734
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 21:
22. An extension header capable (EH capable) Label Switching Router (LSR) comprising:
a processor and associated memory;
at least one interface coupled to the processor and associated memory, the at least one interface configured to receive and transmit packets of data to other Label Switching Routers (LSRs) included in a Multiprotocol Label Switching (MPLS) network;
the processor and associated memory configured to:
receive an advertisement message indicating whether a downstream LSR is extension header capable (EH capable);
receive a packet to be transmitted to the downstream LSR;
determine whether the packet includes one or more extension headers (EHs); and
insert an EH label into an MPLS label stack of the packet after determining the downstream LSR is EH capable and the packet does not include the one or more EHs.