US 2018/0026874 A1 · END POINT SCALING ON SEGMENT ROUTING FABRICS

Abstract

Disclosed are systems and methods for scaling Massively Scalable Data Center (MSDC) networks with a large number of end-point tunnels utilizing Equal-cost multi-path routing (ECMP). The systems and methods can use the NO-OP label operations to maintain single ECMP objects to switch a set of segment routing tunnels that share the same ECMP links. The forwarding engine can determine the use of the NO-OP label operation and update a received packet to enable the use of the single ECMP objects of the set of segment routing tunnels.

Claims20

Dependent claims

A method for end-point scaling on a segment routing network, the method comprising:

receiving, at a node of the segment routing tunnel, a packet and a label;
pushing, to the label, a no-op label;
determining a best next node of a plurality of nodes along the path of the segment routing tunnel corresponding to the label;
and
transmitting the packet with the no-op label to the best next node.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/217,819Filed 22 Jul 2016

Published

25 Jan 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04L 45/24
Routing or path finding of packets in data switching networks: multipath
H04L 12/4633
Interconnection of networks: interconnection of networks using encapsulation techniques, e.g. tunneling
H04L 45/124
Shortest path evaluation: using a combination of metrics
H04L 45/50
Routing or path finding of packets in data switching networks: using label swapping, e.g. multi-protocol label switch [MPLS]

End point scaling on segment routing fabrics

Life of this patent

End point scaling on segment routing fabrics

Life of this patent

Abstract

Claims20