公开(公告)号：US20170366444A1

公开(公告)日：2017-12-21

申请号：US15199238

申请日：2016-06-30

Applicant: Juniper Networks, Inc.

Inventor： Abdul Majid Ansari ,  Steven M. Kensil ,  Bharath RadhaKrishna Bhat ,  Shraddha Hegde

IPC: H04L12/751 ,  H04L12/721 ,  H04L12/46

CPC classification number: H04L45/02 ,  H04L12/4633 ,  H04L45/04 ,  H04L45/12

Abstract: In general, techniques are described by which to provide a scaled end-to-end view of link metrics to integrate multiple non-uniform Interior Gateway Protocol (“IGP”) domains. For example, an Accumulated Interior Gateway Protocol (“AIGP”) attribute, a non-transitive BGP attribute, which includes a link metric assigned to a link within a first IGP domain, is scaled to conform to a metric scale of the second IGP domain. The AIGP attribute may also add link metric assigned to a link within the second IGP domain and may add static metrics of non-IGP links connecting the IGP domains. An IGP domain may set its IGP to the scaled AIGP attribute such that the link metric may include a uniformly scaled end-to-end view of link metrics across the IGP domains. Additionally, a sham-link is assigned a metric value in accordance with the scaling techniques.