Erik, I've been trying to finish up the QoS book I've been working on for a
couple of weeks. Is your understanding of QoS across the internet along the
lines of mine? I.e. while many ISP's will offer some form of service level
agreements ( SLA's ), they will also tell you flat out that the SLA is good
only on the particular ISP network. Traffic too and from the ISP network
falls outside of the SLA. And in fact the internet itself is generally
unreliable in terms of QoS, and it will be many years before RSVP and other
QoS services will be available end to end across the net.
In the case you mention below, using MLPS VPN's, what are some of the
caveats? How would you go about setting up such a thing if your traffic is
going through three or four different ISP's?
Chuck
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Erick B.
Sent: Thursday, August 17, 2000 7:10 PM
To: Chuck Larrieu; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: RE: Using Queing over the Internet
I think he was asking how queuing works over the
Internet in a VPN. This would fall under QoS and to
acheive QoS then it has to be set up properly across
all points from end to end. You may want to look at
MPLS VPNs since MPLS uses traffic shaping/QoS.
Basically, you can have queuing on router A and
traffic going through it will be properly
queued/priortized, etc and then this traffic reaches
router B, C, etc and they have to have similar rules
for queueing/prioritzation else that router/device
will forward the traffic normally. If you're using one
of the newer QoS/Traffic Engineering protocols on your
network then it may be different depending on a number
of things. Note, I'm no guru when it comes to
QoS/TE/MPLS, etc.
--- Chuck Larrieu <[EMAIL PROTECTED]> wrote:
> If I understand the question correctly, the answer
> is that queueing is
> defined on the physical interface, not the logical
> or tunnel interface.
>
> Priority queueing can allow you some refinement
> based on an access list.
> or other things )
>
> Custom queueing works with protocol and interface
> traffic, and allows for
> some granular control of amount of traffic.
>
> There are things to be aware of with any form of
> queueing that you may use.
> There is a good discussion on queueing at:
>
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/qos_
> c/qcprt2/qcdconmg.htm
> most definitely watch the wrap
>
> Chuck
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]] On Behalf Of
> [EMAIL PROTECTED]
> Sent: Thursday, August 17, 2000 6:10 AM
> To: [EMAIL PROTECTED]
> Subject: Using Queing over the Internet
>
>
> Can you setup a VPN queing between two sites?
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