one small note, in passing:
> In other words..intermittent intergap delay?
when PAIX sells what it calls Fractional Gig E, it's just Gig E with
rate limiting. nothing special at the link level.
It is very messy, but until we get a Supervisor/MSFC/PFC that can police on
egress vlan...
We have two bgp sessions with our provider, one that distributes I2 routes,
and the other, default. Each points to the other end of their respective
/30 subnets on their own vlan on an 802.1q trunk (set
> Is this link in production? We are using a gigabit ethernet to our
> provider. We are limited on our traffic going to Commodity traffic, but
> have free reign on our Internet 2 traffic. We found that we get the best
> results when we shape/police our traffic to stay within our contractual
> li
--On Monday, July 15, 2002 10:48 PM -0400 Alex Rubenstein <[EMAIL PROTECTED]>
wrote:
> I'm trying to troubleshoot a problem with a fractional (311 mbit/second)
> gigabit-ethernet line provided to me by a metro access provider.
> Specifically, it is riding a gig-e port of a 15454.
>
> The behavio
I may be missing something but..
presumably their rate-limiting involves some form of queuing/buffering..
in which case assuming the ping is the only thing occuring, when the rate hits
the limit it will queue, delay and slow down the echo/reply
and no packets should be lost?
on the other h
gt;As another aside we have seen problems when simultaneously using both ports
>on the 2 x GigE card for more then 200mbps a piece, but not with any
>regularity.
>
>-vb
>
>
>- Original Message -
>From: "Sush Bhattarai" <[EMAIL PROTECTED]>
>To: "Alex
: A cisco ping is not bursty, to the extent of hundreds of mb/s. Also, cisco
: ping doesn't offer 4,000 pings/sec.
No, but you can start 6 simultaneous sessions to the router and have 5 of
them pinging the other side of the circuit while looking at the 6th
session to watch for traffic leve
Sush,
Are you thinking of rate-limiting or traffic shaping ?
I'd expect rate-limiting of bursty traffic to lose some packets
irrespective of the L3 hardware/CPU capacity
--
Rafi
## On 2002-07-15 23:57 -0400 Sush Bhattarai typed:
SB>
SB> Might want to query your provider as to wher
t;[EMAIL PROTECTED]>
To: "Alex Rubenstein" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Monday, July 15, 2002 11:57 PM
Subject: Re: fractional gigabit ethernet links?
>
> Might want to query your provider as to where the rate limitting is being
> done. In some cases,
Might want to query your provider as to where the rate limitting is being
done. In some cases, if rate limit is being done egress from the layer 3
infracture towards the MAN layer 2 equipment, there might be a lack of
processing power on that device, causing the drops. Of course this will
depend
On Mon, 15 Jul 2002, Phil Rosenthal wrote:
>
> This may sound a bit ridiculous, but say the timer is every 0.25ms.
> 100kbit per 0.25ms = 400,000kbit or 400 mbit.
> It is remotely possible to hit a 300 mbit limit with only 100kbits of
> traffic, if the timer is sufficiently short, and your tra
On Mon, 15 Jul 2002 22:48:12 -0400 (Eastern Daylight Time)
Alex Rubenstein <[EMAIL PROTECTED]> wrote:
>
>
> Hello,
>
> I'm trying to troubleshoot a problem with a fractional (311 mbit/second)
> gigabit-ethernet line provided to me by a metro access provider.
> Specifically, it is riding a gig
PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Alex Rubenstein
Sent: Monday, July 15, 2002 11:06 PM
To: Phil Rosenthal
Cc: [EMAIL PROTECTED]
Subject: RE: fractional gigabit ethernet links?
On Mon, 15 Jul 2002, Phil Rosenthal wrote:
>
> Hello Alex,
>
> I'd say this sounds ob
On Mon, 15 Jul 2002, Phil Rosenthal wrote:
>
> Hello Alex,
>
> I'd say this sounds obvious, but may be deceptively so...
> If you are taking a pipe capable of 1000 mbit, and rate-limiting it to
> 311 mbit, the logic used may be:
>
> In the last 1000 msec have there been more than 311mbits? I
Hello Alex,
I'd say this sounds obvious, but may be deceptively so...
If you are taking a pipe capable of 1000 mbit, and rate-limiting it to
311 mbit, the logic used may be:
In the last 1000 msec have there been more than 311mbits? If yes: drop.
What you want is to shape the traffic, so the r
15 matches
Mail list logo
