Homenet IS-IS Profile
NetDEF
04229
Leipzig
Germany
david@opensourcerouting.org
Internet Engineering Task Force
Homenet Working Group
Homenet IS-IS Profile Requirements References
This (pointer) document describes the neccessary bits and pieces of
IS-IS that a homenet targeted implementation would need to implement.
Homenet, as seen by the IETF Homenet working group, operates as a
set of IPv6 routers performing source/destination based routing. Since
an arbitrary number of routers in an arbitrary dynamic topology is to
be supported, a dynamic routing protocol is needed. This document
outlines how to apply IS-IS for this.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in .
The following (parts of) specifications MUST be implemented for a
homenet IS-IS router:
Parts of ISO 10589-2002:
Section 6.1, Level 1 Intermediate System
Section 6.2, bullet a) - broadcast subnetworks
Section 6, remainder (6.3 - 6.8.4)
Section 7, Level 1 IS function only
exclude Section 7.2.2 (replaced by wide metrics)
exclude Section 7.2.9 (Level 2 interactions)
exclude Section 7.2.10 (Partition repair)
exclude Section 7.4 (Forwarding process), replaced by
IPv6 forwarder behavior
Sections 8.2 and 8.4
Section 9, excluding PDU types specific to Level 2 operation
Sections 10.1 and 10.2
Generally speaking, a homenet IS-IS implementation needs to operate in
a network consisting purely of Level 1 Intermediate Systems.
The following updates to the IS-IS specification:
, M-ISIS: Multitopology Routing
, IS-IS 3-way Adjacency TLV
, IS-IS Extensions for Traffic Engineering
wide metrics and IP prefix encoding
Sub-TLVs 3, 9, 10, 11, 18 not required
, Routing IPv6 with IS-IS
, IS-IS Autoconfiguration
, IS-IS IPv6 Source/Destination Routing
, IS-IS Point to Multipoint operation
And, finally, IPv6 source/destination routing behavior as specified in
.
Most configuration parameters are specified in
as part of IS-IS autoconfiguration.
Homenet uses the following additional parameter choices:
IPv6 is routed in M-ISIS topology with MTID #2.
IPv4, if supported, is routed in the base topology (MTID #0).
Supporting IPv4 for backwards compatibility requires implementation
of .
This document has no independent security or privacy concerns. Those
in the referenced documents apply.
Juliusz Chroboczek pointed out the need for this document.
Intermediate System to Intermediate System Intra-Domain
Routing Exchange Protocol for use in Conjunction with the Protocol
for Providing the Connectionless-mode Network Service (ISO
8473)
ISO/IEC
(to be removed)
July 2015
October 2015
April 2016; removed isis-over-ipv6