From: Bandele F Hinton (bandeleh@xxxxxxxxxxx)
Date: Tue Aug 24 1999 - 04:18:03 GMT-3
I have an environment where I'm using the following configuration:
PC -- Switch -- Router A
S0 -- ISDN PRI (T1) -- ISDN BRI (64K)
S1 -- Satellite MUX (UPLINK@128K) --- Satellite --- Satellite DMUX
(DOWNLINK@128K) --- ROUTER1 (spoke) --- SWITCH --- PC
E0 -- Ethernet Interface to local network (10/100)
I am experiencing a number of bottlenecking problems as a result of this
configuration.
1. I have a 100 MB Ethernet connection
2. I have a 128k Sat connection using a 64k ISDN connection
the application requires that i transmit data across the satellite from the
hub via UDP and receive confirmation back from the ISDN circuit. i am
experiencing a number of problems with the ISDN circuit loosing frames. in
addition, i need to optimize the environment. can someone help?
Regarding MTU's, what is the purpose and when should it be modified.
Thanks a bunch in advance!!!
----- Original Message -----
From: Peter Van Oene <vantech@sympatico.ca>
To: Mark McSweeny <MarkM@interconnect.co.nz>; 'grcitynet' <gr@citynet.net>
Cc: <ccielab@groupstudy.com>
Sent: Tuesday, August 24, 1999 12:55 AM
Subject: Re: When would you use SRT?
> All good, except the router will handle MTU mismatches that will
> occur
>
>
> Peter Van Oene
> Senior Systems Engineer
> UNIS LUMIN Inc.
> www.unislumin.com
>
> ----- Original Message -----
> From: Mark McSweeny <MarkM@interconnect.co.nz>
> To: 'grcitynet' <gr@citynet.net>
> Cc: <ccielab@groupstudy.com>
> Sent: Monday, August 23, 1999 6:31 PM
> Subject: RE: When would you use SRT?
>
>
> > Hi,
> >
> > SRT is used when you have to bridge devices, some of which
> > use RIFs and some that don't.
> > I wouldn't used it for Token <> Ethernet - use Translational.
> >
> > Example
> >
> > A router with two token rings and two ethernets.
> > Bridging process checks for RIF, if present use SRB if missing
> > use TB
> >
> > MTUs must be the same
> >
> > I think thats correct..
> >
> > Cheers
> > Mark
> >
> > On Tuesday, August 24, 1999 12:33 PM, grcitynet [SMTP:gr@citynet.net]
> wrote:
> > > I seem to remember doing a lab in CIP class that used SRT. We were
able
> to
> > > talk to ethernet to token ring but to connect to a host on the other
> side
> > > you would invert the mac address. ie 00e0.acbc.1111 to
8888.3d35.0700.
> > >
> > > I will try to dig up some of the info and labs if I can.
> > >
> > >
> > > ----- Original Message -----
> > > From: Vincent Fortunato <vfortunato@erols.com>
> > > To: <ccielab@groupstudy.com>
> > > Sent: Saturday, August 21, 1999 2:30 PM
> > > Subject: RE: When would you use SRT?
> > >
> > >
> > > > Paul:
> > > > SRT would be used when you need a router to do either SRB or TB, but
> not
> > > > between the two. (i.e. will not do the required canonical to
> > non-canonical
> > > > bit flipping that occurs in translational bridging). I guess you
> would
> > > use
> > > > this when you have multiple but separate bridging processes going on
> at
> > > the
> > > > same time on the same router. However, you would only be able to
> bridge
> > > an
> > > > ethernet interface to another ethernet interface and a token-ring
> > > interface
> > > > to another token-ring interface. I probably just reiterated your
> > question
> > > > because I cannot imagine ever actually needing to do this. Also
sorry
> > if
> > > > I'm insulting your intelligence - as the creator of this list and
> former
> > > > instructor of mine, you're probably looking for a more in-depth
> > response.
> > > > If I remember correctly, the ACRC student text had a SRT scenario in
> it.
> > > > Lab in two weeks at RTP (lab virgin here)!
> > > >
> > > > Vince Fortunato
> > > >
> > > > -----Original Message-----
> > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > > Paul
> > > > Borghese
> > > > Sent: Friday, August 20, 1999 3:15 PM
> > > > To: ccielab@groupstudy.com
> > > > Subject: When would you use SRT?
> > > >
> > > > Does anyone know in what scenario you would use Source Route
> Transparent
> > > > bridging? The bit-order problem seems to rule out the use between
> token
> > > > ring and ethernet.
> > > >
> > > > Thanks,
> > > >
> > > > Paul
> > > >
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