IETF 82 Proceedings

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Transparent Interconnection of Lots of Links (trill) (WG)

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Additional information is available at tools.ietf.org/wg/trill

Chair(s):

Internet Area Director(s):

Internet Area Advisor:

Meeting Slides

Internet-Drafts:

Request for Comments:

Charter (as of 2011-12-09)

The TRILL WG has specified a solution for shortest-path frame
routing in multi-hop IEEE 802.1-compliant Ethernet networks with
arbitrary topologies, using an existing link-state routing protocol
technology and encapsulation with a hop count.

The current work of the working group is around operational and
deployment support for the protocol. This includes a MIB module and
other pieces needed for operations, but also additional ways to
extend and optimize TRILL for the properties of the networks on
which it is deployed.

The WG will work on the following items:

(1) A MIB module for TRILL which specifies the unique pieces needed
for the protocol while reusing what is in the IS-IS MIB module and
the IEEE 802.1 MIB modules for pieces that are not unique to TRILL
(draft-ietf-trill-rbridge-mib).

(2) Development, within the TRILL protocol context, of requirements
and specifications for broadcast/multicast (multi-destination) frame
reduction; e.g., ARP/ND (Neighbor Discovery) reduction through
use of the TRILL ESADI protocol.

(3) Refinement of TRILL Header Options, as initially defined in
draft-ietf-trill-rbridge-protocol and specification of an initial
base set of options (draft-ietf-trill-rbridge-options).

(4) Provide documentation for the handling of Operations,
Administration, and Maintenance (OAM) in networks using TRILL. Any
documentation will take into consideration any existing OAM
mechanisms that might apply to TRILL.

(5) Publish an implementation report for TRILL.

(6) Analyze use of IS-IS security in TRILL and determine if any work
is needed to accommodate the specific application of IS-IS security
in TRILL forwarding.

(7) Publish a description of the adjacency state machine in TRILL
(draft-ietf-trill-adj).

The trill WG will continue to work with other IETF working groups
such as the isis WG, and SDO groups such as IEEE 802.1 through
established inter-WG relationships and SDO liaison processes,
including early and WG last call review by the isis WG of documents
modifying the IS-IS protocol. The trill WG will have a Routing Area
Advisor for advice on the IS-IS protocol and liaison with the isis
WG.

Goals and Milestones:

Done  Accept base protocol specification as a WG document
Done  Accept problem statement and applicability as a WG work item
Done  Start work with routing area WG(s) to undertake TRILL extensions
Done  Accept architecture document as a WG work item
Done  Accept routing protocol requirements as a WG work item
Done  Choose routing protocol(s) that can meet the requirements
Done  Submit problem statement and applicability to IESG for Informational RFC
Done  Submit base protocol specification to IEEE/IETF expert review
Done  Base protocol specification submitted to the IESG for publication as a Proposed Standard RFC
Done  First draft showing what is needed for MIB
Done  Initial WG draft on VLAN Mapping (draft-ietf-trill-rbridge-vlan-mapping)
Done  Initial WG draft TRILL Header Options (draft-ietf-trill-rbridge-options)
Done  Initial WG draft on RBridge MIB module (draft-ietf-trill-rbridge-mib)
Done  Initial WG draft on trill adjacency state machine (draft-ietf-trill-adj)
Done  Submit trill adjacency state machine to IESG for publication as Proposed Standard (draft-ietf-trill-adj)
Done  Submit RBridge MIB module to IESG for publication as Proposed Standard (draft-ietf-trill-rbridge-mib)
Mar 2011  Submit TRILL Header Options to IESG for publication as Proposed Standard (draft-ietf-trill-rbridge-options)
Mar 2011  Initial WG draft on ARP/ND optimizations
Mar 2011  Initial WG draft on RBridge OAM (draft-bond-trill-rbridge-oam)
May 2011  Submit TRILL ARP/ND optimizations to IESG for publication as Proposed Standard
Jun 2011  Submit RBridge support of Data Center Bridging to IESG for publication as Proposed Standard (draft-eastlake-trill-rbridge-dcb)
Jul 2011  Submit RBridge OAM to IESG for publication as Proposed Standard
Jul 2012  Re-charter or shut down the WG

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