RAS Date: Mon, 26 Jan 2004 15:35:28 -0500
RAS From: Richard A Steenbergen
RAS On Mon, Jan 26, 2004 at 10:58:49AM -0800, Sean Finn wrote:
RAS
RAS(Quiz for the list readers:
RAS What percentage of the Internet routing table does
RAS your network actually use?)
Perhaps around 25% for
I am going to have to call bullshit on the MPLS fast reroute thing
there Wayne. The canonical counterexample is Sprint.
To be sure, Sprint and Ebone have shown that it is possible to
run a very high quality (low jitter) pure IP network, but...
Excellent engineering and ops folks top the list,
What is broken for one provider and fixed at another may very well break
something else that was working before at the first provider, yes?
Besides
the difficulties of assigning a true metric to the overall reachability
of
a /8 or any aggregate for that matter (ok we decreased rtt by 20ms to
[EMAIL PROTECTED] wrote:
You hit the nail on the head. Fundametally, any route optimization
technique that tries to treat an aggregate of the network as
a blob which can be measured will suffer the same type of problems
as an IP over ATM network.
Observationally, IP over ATM has interesting
BGP is relatively good at determining the best path when you a major
carrier with connectivity to everyone (i.e. when traffic flows
naturally), in many locations, and you engineer your network so that
you
have sufficient capacity to support the traffic flows.
In other words, BGP really only
On Mon, 26 Jan 2004 10:30:38 -0500
[EMAIL PROTECTED] wrote:
Yes, we can probably make something better than BGP. But will we
be able to understand it?
I thought this was a good measure of that question... from the current
draft-irtf-routing-reqs draft:
2.1.17 Simplicity
The
Although in principle I agree with what you say here, I will point out
that the number and frequency of significant network outages
(excluding things like the recent power failure in LAX) has become
rare as compared to what they were 5 or 6 years ago. Part of this is
due to attitudes about the
] 2.1.17 Simplicity
]
] The architecture MUST be simple enough so that Radia Perlman can
] explain all the important concepts in less than an hour.
Oh, phew, good thing that isn't me. I've never been able to explain
anything in less than an hour. :)
--
Rob Thomas
Richard,
you have made some good points in this thread.
One general observation, and then specific responses
... I don't assert that current route optimization
technology solves ALL routing problems, but do think
that there are some specific problems that automation
can effectively, and
On Mon, Jan 26, 2004 at 10:58:49AM -0800, Sean Finn wrote:
The issue that you describe does indeed offer some constraints to the
application of route optimization technology. Within the scope of this
issue, though, I think that you would agree that a network which is ALL
transit would face
On Mon, Jan 26, 2004 at 08:47:54AM -0700, Wayne E. Bouchard wrote:
Although in principle I agree with what you say here, I will point out
that the number and frequency of significant network outages
(excluding things like the recent power failure in LAX) has become
rare as compared to what
This was one of the pipe dreams that RSVP was _supposed_ to solve in that
you could set up a end to end path with precisely specified
characteristics. problem is _all_ the devices in the path need to support
RSVP.
Now the snake oil salesmen are coming out with boxes which purport to
monitor the
Scott,
Not all boxes are created equal. I agree that certain manufactures of
route optimization equipment really should be in the used car sales
arena.
However that is not the case with the unit we purchased. The
RouteScience PathControl box we purchased only sends
UDP traceroutes to the top
Richard J. Sears [EMAIL PROTECTED] writes:
Once I had fully implemented the unit, my latency dropped by 40% to
over 100 keynote locations around the world.
In some circles, playing games with Keynote is considered excellent sport.
---Rob
Richard A Steenbergen wrote:
The issue that you describe does indeed offer some constraints to the
application of route optimization technology. Within the scope of this
issue, though, I think that you would agree that a network which is ALL
transit would face no challenge here -- and
I have been on a personal crusade for the last 8 months to address this
very issue!
We identified the exact same issues and questions as we grew from a
single backbone to 7 backbones, each of various sizes ranging from gig
connections to DS3s. In total I have almost 3GB of total available
Hello,
I am trying to determine for myself the relevance of Intelligent
Routing Devices like Sockeye, Route Science etc. I am not trying to
determine who does it better, but rather if the concept of optimizing
routes is addressing a significant problem in terms of improved
traffic
On Jan 21, 2004, at 4:20 PM, vijay gill wrote:
On Wed, Jan 21, 2004 at 09:05:46PM +, Paul Vixie wrote:
My questions are these:
Is sub-optimal routing caused by BGP so pervasive it needs to be
addressed?
that depends on your isp, and whether their routing policies (openness
or
On Thu, 22 Jan 2004, Patrick W.Gilmore wrote:
In any case, no matter how many resources or black boxes you have, you
cannot guarantee good performance on the 'Net. Too many people
involved over which you have no control. Even if you had control, BGP
is not the right tool to exert such
Hello,
I am trying to determine
for myself the relevance of Intelligent Routing Devices like Sockeye, Route
Science etc. I am not trying to determine who does it better, but rather if the
concept of optimizing routes is addressing a significant problem in terms of
improved traffic
On Jan 21, 2004, at 3:27 PM, Jim Devane wrote:
Hello,
I am trying to determine for myself the relevance of Intelligent
Routing Devices like Sockeye, Route Science etc. I am not trying to
determine who does it better, but rather if the concept of optimizing
routes is addressing a significant
My questions are these:
Is sub-optimal routing caused by BGP so pervasive it needs to be
addressed?
that depends on your isp, and whether their routing policies (openness
or closedness of peering, shortest vs. longest exit, respect for MEDs)
are a good match for their
On Wed, Jan 21, 2004 at 09:05:46PM +, Paul Vixie wrote:
My questions are these:
Is sub-optimal routing caused by BGP so pervasive it needs to be
addressed?
that depends on your isp, and whether their routing policies (openness
or closedness of peering, shortest vs.
... depends on your isp, and whether their routing policies (openness
or closedness of peering, shortest vs. longest exit, respect for MEDs)
are a good match for their technology/tools, skills/experience, and
resources/headroom.
In practice, all of the above just turn out to be
On Wed, Jan 21, 2004 at 12:27:16PM -0800, Jim Devane wrote:
Are these devices able to effectively address the need?
Sugar pills effectively address the needs of a great many ailments when
given to people who believe that they will work. And if the end result is
an addressed need, who are we
On Wed, 21 Jan 2004, Richard A Steenbergen wrote:
On Wed, Jan 21, 2004 at 12:27:16PM -0800, Jim Devane wrote:
Are these devices able to effectively address the need?
Sugar pills effectively address the needs of a great many ailments when
given to people who believe that they will work. And
On Wed, Jan 21, 2004 at 02:30:19PM -0800, Tom (UnitedLayer) wrote:
On Wed, 21 Jan 2004, Richard A Steenbergen wrote:
On Wed, Jan 21, 2004 at 12:27:16PM -0800, Jim Devane wrote:
Are these devices able to effectively address the need?
Sugar pills effectively address the needs of a great
On Wed, 21 Jan 2004, Richard A Steenbergen wrote:
I don't know if they're doing the same thing in Cali or not (they probably
are, since all the radio stations are owned by the same 2 companies),
Yeah, NPR and CBS, both monopolistic empires with the same viewpoint :)
but here in NoVA land
28 matches
Mail list logo
