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Advisory
23
August 2001
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Third
Advisory Concerning Equitable Allocation of Shared Registration System
Resources
(23 August 2001) As previously
reported in advisories dated 16
July 2001 and 10
August 2001, the registry operator and registrars participating
in the Shared Registration System (SRS) for .com/.net/.org have been
working together to devise a plan to handle expiring names in a manner
that is fair and does not interfere with other activities in the SRS.
While all parties will continue
to look for a long-term solution, the registry operator announced today
that it has developed, and is preparing to implement, a short-term measure
that will allow for the resumption of the batch delete process. This
short-term measure will allow for the return of deleted names to the
"pool" of names available for registration by any registrant,
through any registrar, on a first-come/first-served basis. This will
alleviate the growing backlog of names in delete-pending status and
may provide additional data for use in developing appropriate long-term
solutions.
ICANN's Domain Name Supporting
Organization has already been advised of the situation and has begun
to discuss possible measures for handling expiring names. Members of
the community are urged to participate in the DNSO's discussions, so
that all viewpoints can be considered in developing measures for fair
allocation of expiring names.
Subject: [RegistrarsList]
Announcement Regarding Suspension of Delete Batch Job and Connection
Utilization within the SRS
Date: Thu, 23 Aug 2001 14:56:57 -0400
From: "VeriSign Global Registry Services" <info@verisign-grs.com>
To: <registrars@verisign-grs.com>
To all Registrars:
Summary
On Friday August 10, 2001,
VeriSign Global Registry Services (VeriSign GRS) temporarily suspended
the batch releases of deleted .com, .net, and .org domain names to ensure
continued service quality within the Shared Registration System (SRS).
As described in the announcement of the suspension, VeriSign GRS has
been working with ICANN and the registrar community to devise an appropriate
plan to handle expiring names in a manner that is fair and does not
interfere with other activities in the SRS.
VeriSign GRS believes that
a long-term solution will require fundamental changes in the way expiring
names are handled. Nonetheless, in view of concerns that an ultimate
solution might be made more difficult by an accumulation of expiring
names during the suspension, VeriSign GRS has been evaluating short-term
measures for addressing the issues that caused the suspension. The purpose
of this email is to communicate the details of these short-term measures
and the schedule for their implementation.
VeriSign GRS will continue
to work with the Registrar Constituency, the DNSO, and the Names Council
to develop better policies and processes for registrations being returned
to the available pool. To the extent that the short-term measures described
below provide relevant experience, VeriSign GRS will endeavor to share
that information in a manner consistent with the confidentiality it
accords to its customers' business information.
Goals
The goals of this new session
management process are:
- To re-enable the registry
batch release process.
- To ensure each registrar
is able to obtain RRP sessions reasonably necessary to support its
business practices.
- To support the business
practices of each registrar in such a way that the business practices
of one would not impact the business practices of another.
- Improve performance and
lower system latency during peak processing periods.
Implementation Details
To facilitate the above goals,
additional capacity has been added to the SRS and three (3) session
pools have been created.
1. Guarantee Pool
2. Overflow Pool
3. Automated Batch Pool
Each of these pools is described
in detail below. In summary, we expect the implementation of these three
session pools to provide the following advantages:
- A larger and more reasonable
number of guaranteed sessions that will better support small to medium
registrars that have a traditional business model and that have been
experiencing difficulties obtaining sessions.
- Support for registrars
whose business model involves more extensive use of automated batch
processing, without adversely impacting other registrars.
- Eliminate the need for
"session squatting (acquiring and holding sessions that
are not needed or used).
Guarantee Pool
The Guarantee Pool is a session
pool in which each registrar is guaranteed 15 sessions. Registrars should
continue using the current hostname access (rrp.verisign-grs.com) in
order to obtain their guaranteed sessions. There is no change required
for registrars to access this pool. Registrars should be aware that
due to the load-balancing technology currently employed, it may take
multiple connection attempts to obtain these guaranteed sessions. Our
data show that over 75% of registrars use 15 or less sessions. Intensive
automated batch processing will not be permitted in this pool.
Overflow Pool
The Overflow Pool is a first-come-first-served
pool of additional sessions. As with the Guarantee Pool, the Overflow
Pool is accessed via the rrp.verisign-grs.com hostname. VeriSign GRS
has added sufficient capacity to this pool to accommodate historical
registrar session activity, with the movement of intensive batch processing
to the Automated Batch Pool described below. Intensive automated batch
processing will not be permitted in this pool. We believe the increased
capacity coupled with the movement of batch processing to another pool
will enable registrars to obtain the sessions they need when they need
them, thus eliminating the need for session hoarding or
squatting.
Automated Batch Pool
This pool of sessions has
been established specifically to support registrars whose business practices
include the execution of intensive automated batch processing. This
pool is completely separate from the Guarantee Pool and Overflow Pool,
and is accessed only via a separate hostname (rrp-auto.verisign-grs.com).
Intensive automated batch processes (such as the daily automated CHECK
activity) must be performed in this pool only. Registrars that desire
to perform this type of activity in this pool should request access
from VeriSign GRS. VeriSign GRS will grant access only to those registrars
that request it, and will permit up to 50 sessions to each requesting
registrar. This pool is specifically allocated to intensive automated
batch processing. The purpose of this pool is to provide an area where
intensive automated batch activities can be performed without impacting
other activities.
Monitoring
VeriSign GRS closely monitors
registrar session activity and will work with registrars to assist them
in using the session pool(s) that will best support their business activities.
Registrars that perform intensive automated batch processing will be
required to modify their systems (i.e., use a different RRP hostname
address) so that these activities are performed only in the Automated
Batch Pool. VeriSign GRS believes that these measures will permit all
registrars to obtain as many sessions as needed to perform business.
Thus, there should no longer be a need for registrars to "hoard"
or "squat" on sessions unnecessarily. VeriSign GRS is ready
to implement technology that will automatically close unused sessions;
however, we will only implement this technology if session "hoarding"or
"squatting" continues to be a problem.
VeriSign GRS will utilize
several monitoring mechanisms to detect inappropriate session utilization.
We will inspect for inappropriate utilization if events such as the
following occur:
- A sudden change in a registrars
transaction or session profile
- Activity causing impact
to system performance
- Complaints about system
response or inability to obtain sessions
Following the occurrence
of these types of events, VeriSign GRS will evaluate session activity,
looking for the following specific behaviors:
- Loops of repeated transactions
(e.g., multiple attempts of the same CHECK or ADD command for the
same domain name)
- A high ratio of "unsuccessful"
to "successful" SRS responses
If these characteristics
exist, this behavior will be determined to be inappropriate for the
Guarantee and Overflow Pools and the registrar will be notified and
directed to move this activity to the Automated Batch Pool. If you have
any additional questions about what constitutes intensive automated
batch processing, please contact VeriSign GRS Customer Service.
Enforcement
The following enforcement
procedures will be employed.
- A 1st offense will result
in the registrar having its bandwidth and sessions immediately limited
in the Guarantee and Overflow Pools so that the behavior does not
impact the system or other registrars. The registrar will receive
an email and telephone notification. When the registrar has notified
VeriSign GRS of the resolution of the issue (e.g., the activity has
been moved to the Automated Batch Pool), these bandwidth and session
limitations will be removed.
- A 2nd offense will result
in the same action as the 1st, with the added action that the registrar
will be notified that subsequent offenses will result in it being
blocked entirely from the Guarantee and Overflow Pools.
- A 3rd offense will result
in the registrar being blocked from the Guarantee and Overflow Pools
for 7 days, requiring that all transactions be performed in the Automated
Batch Pool.
- Subsequent offenses will
result in the registrar being blocked from the Guarantee and Overflow
Pools for 30 days, requiring that all transactions be performed in
the Automated Batch Pool.
Enforcement of these procedures
will begin with the resumption of batch releases described below.
Implementation Schedule
These three pools are available
now. Registrars that do not engage in intensive automated batch processing
may continue to access the SRS through rrp.verisign-grs.com as they
do now. No system changes are necessary. No intensive automated batch
processing is to be performed in the Guarantee Pool or Overflow Pool.
Registrars that do engage in intensive batch processing are required
to request access to, and move that activity to, the Automated Batch
Pool. This will require a minor modification to use the rrp-auto.verisign-grs.com
access host.
Resumption of Batch Releases
VeriSign GRS believes that
the prompt resumption of registry batch releases is in the best interests
of the registrars and the Internet community. Therefore, the batch release
process will be resumed at 18:00 UTC (1400 hrs EDT) on Thursday, August
30, 2001. Registrars that anticipate resuming associated intensive automated
batch processing must modify their systems to access the Automated Batch
Pool via rrp-auto.verisign-grs.com by that time. Registrars that perform
this type of activity in the Guarantee or Overflow Pools will be subject
to the enforcement procedures noted above. Registrars will not be permitted
more than 200 total sessions across all pools. This upper limit is not
a guarantee. The plan described here only guarantees 15 sessions. However,
if registrars use the Automated Batch Pool for intensive batch processing,
and use no more sessions than necessary to perform business (e.g., no
session "hoarding"), there should be no shortage of sessions.
Subsequently, all batch releases
will be performed daily at 18:00 UTC (1400 hrs EDT). Note this time
change. Batch releases are always completed within 15 minutes. Therefore,
registrars that utilize intensive batch processing associated with the
registry daily batch release have no need to start that processing prior
to 17:45 UTC (1345 hrs EDT), or to continue it past 18:30 UTC (1430
hrs EDT).
Assistance
The VeriSign GRS Customer
Service and Technical Operations staffs are standing by to assist registrars
as needed. We will closely monitor the utilization and activity in each
pool. If, at any time, a registrar is unable to obtain a session in
the Guarantee or Overflow Pools after repeated attempts, please notify
VeriSign GRS Customer Service immediately. Registrars should be aware
that the ability to obtain sessions can also be impacted by registrar
session management practices and Internet Service Provider issues. Sessions
that are broken or otherwise terminated uncleanly may require up to
15 minutes to time-out and reset, and depending on the current number
of sessions, may inhibit the creation of new sessions until the broken
sessions have timed-out.
We strongly believe that
this process will ensure all registrars can acquire the sessions they
need when they need them.
VeriSign GRS is committed
to ensuring continued SRS service quality, with equitable access to
every registrar. As appropriate, this plan may be adjusted in the future
to meet that commitment.
Best Regards,
Chris Sheridan
Manager, Customer Service
VeriSign Global Registry Services
www.verisign-grs.com
info@verisign-grs.com
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