LISP Impact
draft-ietf-lisp-impact-04
The information below is for an old version of the document.
| Document | Type | Active Internet-Draft (lisp WG) | |
|---|---|---|---|
| Authors | Damien Saucez , Luigi Iannone , Albert Cabellos-Aparicio , Florin Coras | ||
| Last updated | 2015-10-22 (Latest revision 2015-10-05) | ||
| Replaces | draft-saucez-lisp-impact | ||
| Stream | Internet Engineering Task Force (IETF) | ||
| Formats | plain text htmlized pdfized bibtex | ||
| Reviews |
GENART Last Call review
Almost Ready
SECDIR Last Call review
Has Issues
|
||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Wassim Haddad | ||
| Shepherd write-up | Show Last changed 2015-07-19 | ||
| IESG | IESG state | Approved-announcement to be sent::Revised I-D Needed | |
| Consensus boilerplate | Yes | ||
| Telechat date | (None) | ||
| Responsible AD | Deborah Brungard | ||
| Send notices to | draft-ietf-lisp-impact.all@ietf.org | ||
| IANA | IANA review state | IANA OK - No Actions Needed |
draft-ietf-lisp-impact-04
Network Working Group D. Saucez
Internet-Draft INRIA
Intended status: Informational L. Iannone
Expires: April 7, 2016 Telecom ParisTech
A. Cabellos
F. Coras
Technical University of
Catalonia
October 5, 2015
LISP Impact
draft-ietf-lisp-impact-04.txt
Abstract
The Locator/Identifier Separation Protocol (LISP) aims at improving
the Internet routing scalability properties by leveraging on three
principles: address role separation, encapsulation, and mapping. In
this document, based on implementation work, deployment experiences,
and theoretical studies, we discuss the impact that the deployment of
LISP can have on both the routing infrastructure and the end-user.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 7, 2016.
Copyright Notice
Copyright (c) 2015 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
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publication of this document. Please review these documents
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described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. LISP in a nutshell . . . . . . . . . . . . . . . . . . . . . . 3
3. LISP for scaling the Internet Routing Architecture . . . . . . 4
4. Beyond scaling the Internet Routing Architecture . . . . . . . 6
4.1. Traffic engineering . . . . . . . . . . . . . . . . . . . 7
4.2. LISP for IPv6 Co-existence . . . . . . . . . . . . . . . . 8
4.3. Inter-domain multicast . . . . . . . . . . . . . . . . . . 8
5. Impact of LISP on operations and business models . . . . . . . 9
5.1. Impact on non-LISP traffic and sites . . . . . . . . . . . 9
5.2. Impact on LISP traffic and sites . . . . . . . . . . . . . 10
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 12
7. Security Considerations . . . . . . . . . . . . . . . . . . . 12
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 12
9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 12
9.1. Normative References . . . . . . . . . . . . . . . . . . . 12
9.2. Informative References . . . . . . . . . . . . . . . . . . 13
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 16
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1. Introduction
The Locator/Identifier Separation Protocol (LISP) relies on three
principles to improve the scalability properties of Internet routing:
address role separation, encapsulation, and mapping. The main goal
of LISP is to make the routing infrastructure more scalable by
reducing the number of prefixes announced in the Default Free Zone
(DFZ). As LISP utilizes mapping and encapsulation technologies, it
provides additional benefits beyond routing scalability. For
example, LISP provides a mean for a LISP site to precisely control
its inter-domain outgoing and incoming traffic, with the possibility
to apply different policies to different domains exchanging traffic
with it. LISP can also be used to ease the transition from IPv4 to
IPv6 as it allows the transport of IPv4 over IPv6 or IPv6 over IPv4.
Furthermore, LISP also supports inter-domain multicast.
This document discusses the impact of LISP's deployment on the
Internet routing infrastructure and on end-users. LISP utilizes a
tunnel-based data plane and a distributed control plane. LISP
requires some new functionalities, such as RLOC reachability
mechanisms. Being more than a simple encapsulation technology and as
a new technology, until more deployment experience is gained, there
will remain open questions related to LISP deployment and operations.
As an encapsulation technology, there may be concerns on reduced
Maximum Transmission Unit (MTU) size in some deployments. An
important impact of LISP is on network operations related to
resiliency and troubleshooting. As LISP relies on cached mappings
and on encapsulation, resiliency during failures and troubleshooting
may be more difficult. Also, the use of encapsulation may make
failure detection and recovery slower and it will require more
coordination than with a single, non-encapsulated, routing domain
solution.
2. LISP in a nutshell
The Locator/Identifier Separation Protocol (LISP) relies on three
principles: address role separation, encapsulation, and mapping.
Addresses are semantically separated in two: the Routing Locators
(RLOCs) and the Endpoint Identifiers (EIDs). RLOCs are addresses
typically assigned from the Provider (interdomain) Aggregatable (PA)
address space. The EIDs are attributed to the nodes in the edge
networks, by a block of contiguous addresses, which are typically
Provider Independent (PI). To limit the scalability problem, LISP
only requires the PA routes towards the RLOCs to be announced in the
Provider infrastructure. Whereas, for non-LISP deployments the EIDs
need as well to be propagated.
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LISP routers are used at the boundary between the EID and the RLOC
spaces. Routers used to exit the EID space (towards the Provider
domain) are called Ingress Tunnel Router (ITRs) and those used to
enter the EID space (from the Provider domain) are called the Egress
Tunnel Routers (ETRs). When a host sends a packet to a remote
destination, it sends it as in the non-LISP Internet. The packet
arrives at the border of its site at an ITR. Because EIDs are not
routable on the Internet, the packet is encapsulated with the source
address set to the ITR RLOC and the destination address set to the
ETR RLOC. The encapsulated packet is then forwarded in the Provider
domain until it reaches the selected ETR. The ETR de-encapsulates
the packet and forwards it to its final destination. The acronym xTR
for Ingress/Egress tunnel router is used for a router playing these
two roles.
The correspondence between EIDs and RLOCs is given by the mappings.
When an ITR needs to find ETR RLOCs that serve an EID, it queries a
mapping system. With the LISP Canonical Address Format (LCAF)
[I-D.ietf-lisp-lcaf], LISP is not restricted to the Internet Protocol
for the EID addresses. With LCAF, any address type can be used as
EID (the address is only the key for the mapping lookup). LISP can
transport, for example, Ethernet frames over the Internet.
An introduction to LISP can be found in [RFC7215]. The LISP
specifications are given in [RFC6830], [RFC6833],
[I-D.ietf-lisp-ddt], [RFC6836], [RFC6832], [RFC6834].
3. LISP for scaling the Internet Routing Architecture
The original goal of LISP was to improve the scalability properties
of the Internet routing architecture. LISP utilizes traffic
engineering and stub AS prefixes (not announced anymore in the DFZ),
so that routing tables are smaller and more stable (i.e., they
experience less churn). Furthermore, at the edge of the network,
information necessary to forward packets (i.e., the mappings) is
obtained on demand using a pull model (whereas the current Internet
BGP model uses a push model). Therefore, the scalability of edge
networks is less dependent on the Internet's size and more related to
its traffic matrix. This scaling improvement has been proven by
several studies. The research studies cited hereafter are based on
the following assumptions:
o EID-to-RLOC mappings follow the same prefix size as the current
BGP routing infrastructure (current PI addresses only);
o EIDs are used only at the stub ASes, not in the transit ASes;
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o the RLOCs of an EID prefix are deployed at the edge between the
stubs owning the EID prefix and the providers, allocating the
RLOCs in a Provider Aggregetable (PA) mode.
The above assumptions are inline with [RFC7215] and current LISP
deployments. It is recognized these assumptions may change in the
longer term. [KIF13] and [CDLC] explore different EDI prefix space
sizes, and still show results that are consistent and equivalent to
the above assumptions.
Quoitin et al. [QIdLB07] show that the separation between locator
and identifier roles at the network level improves the routing
scalability by reducing the Routing Information Base (RIB) size (up
to one order of magnitude) and increases path diversity and thus the
traffic engineering capabilities. [IB07] and [KIF13] show, based on
real Internet traffic traces, that the number of mapping entries that
must be handled by an ITR of a network with up to 20,000 users is
limited to few tens of thousands; that the signaling traffic (i.e.,
Map-Request/Map-Reply packets) is in the same order of magnitude
similar to DNS requests/reply traffic; and that the encapsulation
overhead, while not negligible, is very limited (in the order of few
percentage points of the total traffic volume).
Previous studies consider the case of a timer-based cache eviction
policy (i.e., mappings are deleted from the cache upon timeout),
while [CDLC] has a more general approach based on the Least Recently
Used (LRU) eviction policy, proposing an analytic model for the EID-
to-RLOC cache size when prefix-level traffic has a stationary
generating process. The model shows that miss rate can be accurately
predicted from the EID-to-RLOC cache size and a small set of easily
measurable traffic parameters. The model was validated using four
one-day-long packet traces collected at egress points of a campus
network and an academic exchange point considering EID-prefixes as
being of the same size as BGP prefixes. Consequently, operators can
provision the EID-to-RLOC cache of their ITRs according to the miss
rate they want to achieve for their given traffic.
Results indicate that for a given target miss-ratio, the size of the
cache depends only on the parameters of the popularity distribution,
being independent of the number of users (the size of the LISP site)
and the number of destinations (the size of the EID-prefix space).
Assuming that the popularity distribution remains constant, this
means that as the number of users and the number of destinations
grow, the cache size needed to obtain a given miss rate remains
constant O(1).
LISP usually populates its EID-to-RLOC cache in a pull mode which
means that mappings are retrieved on demand by the ITR. The main
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advantage of this mode is that the EID-to-RLOC cache size only
depends on the traffic characteristics at the ITR and is independent
of the size of the Provider domain. This benefit comes at the cost
of some delay to transmit the packets that do not hit an entry in the
cache (for which a mapping has to be learned). This delay is bound
by the time necessary to retrieve the mapping from the mapping
system. Moreover, similarly to a push model (e.g., BGP), the pull
model induces signaling messages that correspond to the retrieval of
mappings upon cache miss. The difference being that the signaling
load only depends on the traffic at the ITR and is not triggered by
external events such as in BGP. [CDLC] shows that the miss rate is a
function of the EID-to-RLOC cache size and traffic generation process
and [CDLC], [SDIB08], and [SDIB08] show from traffic traces that, in
practice, the cache miss rate, and thus the signaling rate, remain
low.
4. Beyond scaling the Internet Routing Architecture
LISP is more than just a scalability solution, it is also a tool to
provide both incoming and outgoing traffic engineering ([S11],
[I-D.farinacci-lisp-te]), it can be used as an IPv6 transition at the
routing level, and it can be used for inter-domain multicast
([RFC6831], [I-D.coras-lisp-re]). Also, LISP has been identified for
use to support devices' Internet mobility ([I-D.meyer-lisp-mn]) and
to support virtual machines' mobility in data centers and multi-
tenant VPNs. These last two uses are not discussed further as they
are out of the scope of the current LISP Working Group charter.
A key advantage of the LISP architecture is that it facilitates
routing in environments where there is little to no correlation
between network endpoints and topological location. In service
provider environments, this application is needed in a range of
consumer use cases which require an inline anchor to deliver a
service to a subscribers. Inline anchors provide one of three types
of capabilities:
o enable mobility of subscriber end points
o enable chaining of middle-box functions and services
o enable seamless scale-out of functions
Without LISP, operators are forced to centralize service anchors in
custom built boxes. This limits deployments as end-points only can
move on the same mobile gateway, functions can be chained only if
traffic traverses the same wire or the same DPI box, and capacity can
scale out only if traffic fans out to/from a specific load balancer.
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With LISP, service providers are able to distribute, virtualize, and
instantiate subscriber-service anchors anywhere in the network.
Typical use cases for virtualized inline anchors and network
functions include: Distributed Mobility and Virtualized Evolved
Packet Core (vEPC), Virtualized Customer Premise Equipment or vCPE,
where functionality previously anchored at a customer premises is now
dynamically allocated in-network, Virtualized SGi LAN, Virtual IMS
and Virtual SBC, etc.
Current deployments by ConteXtream, using a pre-standards (designed
2006) LISP-based architecture, support a total of 100 million
subscribers. And, a deployment at a tier-1 US Mobile operator with
over 50 million subscribers provides a 39% download rate improvement
over LTE.
4.1. Traffic engineering
In the current (non-LISP)routing infrastructure, addresses used by
stub networks are globally routable and the routing system
distributes the routes to reach these stubs. With LISP, the EID
prefixes of a LISP site are not routable in the DFZ, mappings are
needed in order to determine the list of LISP routers to contact to
forward packets. This difference is significant for two reasons.
First, packets are not forwarded to a site but to a specific router.
Second, a site can control the entry points for its traffic by
controlling its mappings.
For traffic engineering purposes, a mapping associates an EID prefix
to a list of RLOCs. Each RLOC is annotated with a priority and a
weight. When there are several RLOCs, the ITR selects the one with
the highest priority and sends the encapsulated packet to this RLOC.
If several such RLOCs exist, then the traffic is balanced
proportionally to their weight among the RLOCs with the lowest
priority value. Traffic engineering in LISP thus allows the mapping
owner to have a fine-grained control on the primary and backup path
for its incoming and outgoing packets use. In addition, it can share
the load among its links. An example of the use of such a feature is
described by Saucez et al. [SDIB08], showing how to use LISP to
direct different types of traffic on different links having different
capacity.
Traffic engineering in LISP goes one step further. As every Map-
Request contains the Source EID Address of the packet that caused a
cache miss and triggered the Map-Request. It is thus possible for a
mapping owner to differentiate the answer (Map-Reply) it gives to
Map-Requests based on the requester. This functionality is not
available today with BGP because a domain cannot control exactly the
routes that will be received by domains that are not in the direct
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neighborhood.
4.2. LISP for IPv6 Co-existence
The LISP encapsulation mechanism is designed to support any
combination of locators and identifiers address family. It is then
possible to bind IPv6 EIDs with IPv4 RLOCs and vice-versa. This
allows transporting IPv6 packets over an IPv4 network (or IPv4
packets over an IPv6 network), making LISP a valuable mechanism to
ease the transition to IPv6.
An example is the case of the network infrastructure of a datacenter
being IPv4-only while dual-stack front-end load balancers are used.
In this scenario, LISP can be used to provide IPv6 access to servers
even though the network and the servers only support IPv4. Assuming
that the datacenter's ISP offers IPv6 connectivity, the datacenter
only needs to deploy one (or more) xTR(s) at its border with the ISP
and one (or more) xTR(s) directly connected to the load balancers.
The xTR(s) at the ISP's border tunnels IPv6 packets over IPv4 to the
xTR(s) directly attached to the load balancer. The load balancer's
xTR de-encapsulates the packets and forwards them to the load
balancer, which act as proxies, translating each IPv6 packet into an
IPv4. IPv4 packets are then sent to the appropriate servers.
Similarly, when the server's response arrives at the load balancer,
the packet is translated back into an IPv6 packet and forwarded to
its xTR(s), which in turn will tunnel it back, over the IPv4-only
infrastructure, to an xTR connected to the ISP. The packet is then
de-encapsulated and forwarded to the ISP natively in IPv6.
4.3. Inter-domain multicast
LISP has native support for multicast [RFC6831]. From the data-plane
perspective, at a multicast enabled xTR, an EID sourced multicast
packet is encapsulated in another multicast packet and subsequently
forwarded in a RLOC-level distribution tree. Therefore, xTRs must
participate in both EID and RLOC level distribution trees. Control-
plane wise, since group addresses have no topological significance
they need not to be mapped. It is worth noting that, to properly
function, LISP-Multicast requires that inter-domain multicast be
available.
LISP Replication Engineering (RE) ([I-D.coras-lisp-re], [CDM12])
leverage LISP messages ([I-D.farinacci-lisp-mr-signaling]) for
multicast state distribution to construct xTR based inter-domain
multicast distribution trees when inter-domain multicast support is
not available. Simulations of three different management strategies
for low latency content delivery show that such overlays can support
thousands of member xTRs, hundreds of thousands of end-hosts and
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deliver content at latencies close to unicast ones ([CDM12]). It was
also observed that high client churn has a limited impact on
performance and management overhead.
Similarly to LISP-RE, Signal-Free LISP Multicast
([I-D.farinacci-lisp-signal-free-multicast]) can be used when the
core network does not provide multicast support. But instead of
using signaling to build inter-domain multicast trees, signal-free
exclusively leverages the map-server for multicast state storage and
distribution. As a result, the source ITR generally performs head-
end replication but it might be also used to emulate LISP-RE
distribution trees.
5. Impact of LISP on operations and business models
Numerous implementation efforts ([IOSNXOS], [OpenLISP], [LISPmob],
[LISPClick], [LISPcp], and [LISPfritz]) have been made to assess the
specifications and, additionally, interoperability tests ([Was09])
have been successful. A world-wide large deployment in the
international lisp4.net testbed, which is currently composed of nodes
running at least three different implementations, will allow us to
learn further operational aspects related to LISP.
The following sections distinguish the impact of LISP on LISP sites
from the impact on non-LISP sites.
5.1. Impact on non-LISP traffic and sites
LISP has no impact on traffic which has neither LISP origin nor LISP
destination. However, LISP can have a significant impact on traffic
between a LISP site and a non-LISP site. Traffic between a non-LISP
site and a LISP site are subject to the same issues as those observed
for LISP-to-LISP traffic but also have issues specific to the
transition mechanism that allows the LISP site to exchange packets
with a non-LISP site ([RFC6832], [RFC7215]).
The transition requires setup of proxy tunnel routers (PxTRs).
Proxies cause what is referred to as path stretch and make
troubleshooting harder. There are still questions related to PxTRs
that need to be answered:
o Where to deploy PxTRs? The placement in the topology has an
important impact on the path stretch.
o How many PxTRs? The number of PxTR has a direct impact on the
load and the impact of the failure of a PxTR on the traffic.
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o What part of the EID space? Will all the PxTRs be proxies for the
whole EID space or will it be segmented between different PxTRs?
o Who operates PxTRs? An important question to answer is related to
the entities that will deploy PxTRs, how will they manage their
additional CAPEX/OPEX costs associated with PxTRs? How will the
traffic be carried with respect to security and privacy?
A PxTR will also normally advertise in BGP the EID prefix for which
they are proxy. However, if proxies are managed by different
entities, they will belong to different ASes. In this case, we need
to be sure that this will not cause MOAS (Multi-Origin AS) issues
that could negatively influence routing. Moreover, it is important
to ensure that the way EID prefixes will be de-aggregated by the
proxies will remain reasonable so as not to contribute to BGP
scalability issues.
5.2. Impact on LISP traffic and sites
LISP is a protocol based on the map-and-encap paradigm which has the
positive impacts that we have summarized in the above sections.
However, LISP also has impacts on operations:
MTU issue: as LISP uses encapsulation, the MTU is reduced, this has
implications on potentially all of the traffic. However, in
practice, on the lisp4.net network, no major issue due to the
MTU has been observed. This is probably due to the fact that
current end-host stacks are well designed to deal with the
problem of MTU.
Resiliency issue: the advantage of flexibility and control offered
by the Locator/ID separation comes at the cost of increasing
the complexity of the reachability detection. Indeed,
identifiers are not directly routable and have to be mapped to
locators but a locator may be unreachable while others are
still reachable. This is an important problem for any tunnel-
based solution. In the current Internet, packets are forwarded
independently of the border router of the network meaning that,
in case of the failure of a border router, another one can be
used. With LISP, the destination RLOC specifically designates
one particular ETR, hence if this ETR fails, the traffic is
dropped, even though other ETRs are available for the
destination site. Another resiliency issue is linked to the
fact that mappings are learned on demand. When an ITR fails,
all its traffic is redirected to other ITRs that might not have
the mappings requested by the redirected traffic. Existing
studies ([SKI12], [SD12]) show, based on measurements and
traffic traces, that failure of ITRs and RLOC are infrequent
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but that when such failure happens, a critical number of
packets can be dropped. Unfortunately, the current techniques
for LISP resiliency, based on monitoring or probing are not
rapid enough (failure recovery on the order of a few seconds).
To tackle this issue [I-D.bonaventure-lisp-preserve] and
[I-D.saucez-lisp-itr-graceful] propose techniques based on
local failure detection and recovery.
Middle boxes/filters: because of encapsulation, the middle boxes may
not understand the traffic, which can cause a firewall to drop
legitimate packets. In addition, LISP allows triangular or
even rectangular routing, so it is difficult to maintain a
correct state even if the middle box understands LISP.
Finally, filtering may also have problems because they may
think only one host is generating the traffic (the ITR), as
long as it is not de-encapsulated. To deal with LISP
encapsulation, LISP aware firewalls that inspect inner LISP
packets are proposed [lispfirewall].
Troubleshooting/debugging: the major issue which LISP
experimentation has shown is the difficulty of troubleshooting.
When there is a problem in the network, it is hard to pin-point
the reason as the operator only has a partial view of the
network. The operator can see what is in its EID-to-RLOC
cache/database, and can try to obtain what is potentially
elsewhere by querying the Map Resolvers, but the knowledge
remains partial. On top of that, ICMP packets only carry the
first few tens of bytes of the original packet, which means
that when an ICMP arrives at the ITR, it might not contain
enough information to allow correct troubleshooting.
Deployment in the beta network has shown that LISP+ALT
([RFC6836], [CCR13]) was not easy to maintain and control,
which explains the migration to LISP-DDT [I-D.ietf-lisp-ddt].
Business/Operational-related: Iannone et al. [IL10] have shown that
there are economical incentives to migrate to LISP, however,
some questions remain. For example, how will the EIDs be
allocated to allow aggregation and hence scalability of the
mapping system? Who will operate the mapping system
infrastructure and for what benefits?
Reachability: The overhead related to RLOC reachability mechanisms
is not known.
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6. IANA Considerations
This document makes no request to the IANA.
7. Security Considerations
Security and threats analysis of the LISP protocol is out of the
scope of the present document. A thorough analysis of LISP security
threats is detailed in [I-D.ietf-lisp-threats].
8. Acknowledgments
Thanks to Deborah Brungard and Wassim Haddad for their thorough
reviews, comments, and suggestions.
The people that contributed to this document are Sharon Barkai, Vince
Fuller, Joel Halpern, Terry Manderson, Gregg Schudel, Ron Bonica,
Ross Callon.
The work of Luigi Iannone has been partially supported by the ANR-13-
INFR-0009 LISP-Lab Project (www.lisp-lab.org).
9. References
9.1. Normative References
[RFC6830] Farinacci, D., Fuller, V., Meyer, D., and D. Lewis, "The
Locator/ID Separation Protocol (LISP)", RFC 6830,
DOI 10.17487/RFC6830, January 2013,
<http://www.rfc-editor.org/info/rfc6830>.
[RFC6831] Farinacci, D., Meyer, D., Zwiebel, J., and S. Venaas, "The
Locator/ID Separation Protocol (LISP) for Multicast
Environments", RFC 6831, DOI 10.17487/RFC6831,
January 2013, <http://www.rfc-editor.org/info/rfc6831>.
[RFC6832] Lewis, D., Meyer, D., Farinacci, D., and V. Fuller,
"Interworking between Locator/ID Separation Protocol
(LISP) and Non-LISP Sites", RFC 6832, DOI 10.17487/
RFC6832, January 2013,
<http://www.rfc-editor.org/info/rfc6832>.
[RFC6833] Fuller, V. and D. Farinacci, "Locator/ID Separation
Protocol (LISP) Map-Server Interface", RFC 6833,
DOI 10.17487/RFC6833, January 2013,
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Internet-Draft LISP Impact October 2015
<http://www.rfc-editor.org/info/rfc6833>.
[RFC6834] Iannone, L., Saucez, D., and O. Bonaventure, "Locator/ID
Separation Protocol (LISP) Map-Versioning", RFC 6834,
DOI 10.17487/RFC6834, January 2013,
<http://www.rfc-editor.org/info/rfc6834>.
[RFC6836] Fuller, V., Farinacci, D., Meyer, D., and D. Lewis,
"Locator/ID Separation Protocol Alternative Logical
Topology (LISP+ALT)", RFC 6836, DOI 10.17487/RFC6836,
January 2013, <http://www.rfc-editor.org/info/rfc6836>.
[RFC7215] Jakab, L., Cabellos-Aparicio, A., Coras, F., Domingo-
Pascual, J., and D. Lewis, "Locator/Identifier Separation
Protocol (LISP) Network Element Deployment
Considerations", RFC 7215, DOI 10.17487/RFC7215,
April 2014, <http://www.rfc-editor.org/info/rfc7215>.
9.2. Informative References
[CCR13] Saucez, D., Iannone, L., and B. Donnet, "A First
Measurement Look at the Deployment and Evolution of the
Locator/ID Separation Protocol", ACM SIGCOMM Computer
Communication Review. Vol. 43, N. 2., April 2013.
[CDLC] Coras, F., Domingo, J., Lewis, D., and A. Cabellos, "An
Analytical Model for Loc/ID Mappings Caches", IEEE
Transactions on Networking, 2014.
[CDM12] Coras, F., Domingo-Pascual, J., Maino, F., Farinacci, D.,
and A. Cabellos-Aparicio, "Lcast: Software-defined Inter-
Domain Multicast", Elsevier Computer Networks, July 2014.
[I-D.bonaventure-lisp-preserve]
Bonaventure, O., Francois, P., and D. Saucez, "Preserving
the reachability of LISP ETRs in case of failures",
draft-bonaventure-lisp-preserve-00 (work in progress),
July 2009.
[I-D.coras-lisp-re]
Coras, F., Cabellos-Aparicio, A., Domingo-Pascual, J.,
Maino, F., and D. Farinacci, "LISP Replication
Engineering", draft-coras-lisp-re-07 (work in progress),
April 2015.
[I-D.farinacci-lisp-mr-signaling]
Farinacci, D. and M. Napierala, "LISP Control-Plane
Multicast Signaling", draft-farinacci-lisp-mr-signaling-06
Saucez, et al. Expires April 7, 2016 [Page 13]
Internet-Draft LISP Impact October 2015
(work in progress), February 2015.
[I-D.farinacci-lisp-signal-free-multicast]
Moreno, V. and D. Farinacci, "Signal-Free LISP Multicast",
draft-farinacci-lisp-signal-free-multicast-03 (work in
progress), June 2015.
[I-D.farinacci-lisp-te]
Farinacci, D., Kowal, M., and P. Lahiri, "LISP Traffic
Engineering Use-Cases", draft-farinacci-lisp-te-09 (work
in progress), September 2015.
[I-D.ietf-lisp-ddt]
Fuller, V., Lewis, D., Ermagan, V., and A. Jain, "LISP
Delegated Database Tree", draft-ietf-lisp-ddt-03 (work in
progress), April 2015.
[I-D.ietf-lisp-lcaf]
Farinacci, D., Meyer, D., and J. Snijders, "LISP Canonical
Address Format (LCAF)", draft-ietf-lisp-lcaf-11 (work in
progress), September 2015.
[I-D.ietf-lisp-threats]
Saucez, D., Iannone, L., and O. Bonaventure, "LISP Threats
Analysis", draft-ietf-lisp-threats-13 (work in progress),
August 2015.
[I-D.meyer-lisp-mn]
Farinacci, D., Lewis, D., Meyer, D., and C. White, "LISP
Mobile Node", draft-meyer-lisp-mn-13 (work in progress),
July 2015.
[I-D.saucez-lisp-itr-graceful]
Saucez, D., Bonaventure, O., Iannone, L., and C. Filsfils,
"LISP ITR Graceful Restart",
draft-saucez-lisp-itr-graceful-03 (work in progress),
December 2013.
[IB07] Iannone, L. and O. Bonaventure, "On the cost of caching
locator/id mappings", In Proc. ACM CoNEXT 2007,
December 2007.
[IL10] Iannone, L. and T. Leva, "Modeling the economics of Loc/ID
Separation for the Future Internet", Book Chapter,
Towards the Future Internet - Emerging Trends from the
European Research, IOS Press, May 2010.
[IOSNXOS] Cisco Systems Inc., "Locator/ID Separation Protocol
Saucez, et al. Expires April 7, 2016 [Page 14]
Internet-Draft LISP Impact October 2015
(LISP)", http://lisp4.cisco.com, 2013.
[KIF13] Kim, J., Iannone, L., and A. Feldmann, "Caching Locator/ID
Mappings: Scalability Analysis and Implications",
Elsevier Computer Networks Journal, March 2013.
[LISPClick]
Saucez, D. and V. Nguyen, "LISP-Click: A Click
implementation of the Locator/ID Separation Protocol",
1st Symposium on Click Modular Router, 2009,
November 2009.
[LISPcp] "The lip6-lisp Project", https://github.com/lip6-lisp/,
2014.
[LISPfritz]
"Unsere FRITZ!Box-Produkte",
http://avm.de/produkte/fritzbox/, 2014.
[LISPmob] "An open-source LISP implementation for Linux, Android and
OpenWRT", http://lispmob.org, 2015.
[OpenLISP]
"The OpenLISP Project", http://www.openlisp.org, 2013.
[QIdLB07] Quoitin, B., Iannone, L., de Launois, C., and O.
Bonaventure, "Evaluating the benefits of the locator/
identifier separation", In Proc. ACM MobiArch 2007,
May 2007.
[S11] Saucez, D., "Mechanisms for Interdomain Traffic
Engineering with LISP", PhD Thesis, Universite catholique
de Louvain, 2011, October 2011.
[SD12] Saucez, D. and B. Donnet, "On the Dynamics of Locators in
LISP", In Proc. IFIP Networking 2012, May 2012.
[SDIB08] Saucez, D., Donnet, B., Iannone, L., and O. Bonaventure,
"Interdomain Traffic Engineering in a Locator/Identifier
Separation Context", In Proc. of Internet Network
Management Workshop, 2008, October 2008.
[SKI12] Saucez, D., Kim, J., Iannone, L., Bonaventure, O., and C.
Filsfils, "A Local Approach to Fast Failure Recovery of
LISP Ingress Tunnel Routers", In Proc. IFIP Networking
2012, May 2012.
[Was09] Wasserman, M., "LISP Interoperability Testing", IETF 76,
Saucez, et al. Expires April 7, 2016 [Page 15]
Internet-Draft LISP Impact October 2015
LISP WG presentation, 2009., November 2009.
[lispfirewall]
"LISP and Zone-Based Firewalls Integration and
Interoperability", http://www.cisco.com/c/en/us/td/docs/
ios-xml/ios/sec_data_zbf/configuration/xe-3s/
sec-data-zbf-xe-book/sec-zbf-lisp-inner-pac-insp.html,
2014.
Authors' Addresses
Damien Saucez
INRIA
2004 route des Lucioles BP 93
06902 Sophia Antipolis Cedex
France
Email: damien.saucez@inria.fr
Luigi Iannone
Telecom ParisTech
23, Avenue d'Italie, CS 51327
75214 PARIS Cedex 13
France
Email: ggx@gigix.net
Albert Cabellos
Technical University of Catalonia
C/Jordi Girona, s/n
08034 Barcelona
Spain
Email: acabello@ac.upc.edu
Florin Coras
Technical University of Catalonia
C/Jordi Girona, s/n
08034 Barcelona
Spain
Email: fcoras@ac.upc.edu
Saucez, et al. Expires April 7, 2016 [Page 16]