|
Posted by stephen on July 3, 2007, 6:07 pm
If you were Registered and logged in, you could reply and use other advanced thread options
> >
> >
> > > Hi,
> > > We have just replaced our existing DSL based VPN solution with ametro
> > >ethernetone, connecting our 3 sites together over 10Mbit links.
> > > Now i just have a simple question.
> > > The telcosetupthemetroethernet(layer 2 multipointethernet
> > > connection between the 3 sites) and installed Nortel 1400 ESM switches
> > > at each site. After that, they were gone and could'nt tell me how to
> > > further configure it.
> >
> > is it this?http://www.lightreading.com/document.asp?doc_id=78525
> >
> >
>
> Yep, that's it
>
> >
> > > If i'm right, i actually have anethernetlink between every site, but
> > > i cannot just plug the Nortels in the existing switches at each site
> > > since all sites are on a different subnet, right?
> >
> > > So do i need anethernetrouter at each site, connected between the
> > > Nortel (WAN) and the existing LAN andsetupanother new subnet for the
> > > "WAN net"? But what would i use as gateway at the wan ip side?
> >
> > > Should it be like this?
> >
> > > site1
> > > lan1<----192.168.1.1[router]10.0.0.1<---------
> > > >10.0.0.2[router]192.168.2.1----->lan2
> >
> > could be - ie the WAN "cloud" is just anEthernet.
> >
> > if all your sites have the same IP subnet, you could just plug them in -
but
> > that would not be a good idea if you have any other links out. So
routers at
> > each site would be much better.
> >
> > or there might be some structure in the WAN - i have seenEthernetWANs
> > where different destinations selected by 802.1Q VLAN.
> >
> > either way you need a router or a layer 3 switch at each location.
> >
>
> All sites have different subnets, so plugging in won't work i guess.
> If i put routers at every site (3 in total), do i need to create a
> separate WAN subnet to interconnect the routers?
that would be the classic way to do it. It also makes it easier to add extra
sites later.
>
> If i use a layer 3 switch instead of a router. Does that need
> configuring, or is it just a matter of plugging in and it works?
it is just a router with built in hardware driven engine - so roughly same
amount of config as a router.
that translates into a few lines to type for simple, going up to dozens of
lines when you add security, QoS and all the other stuff that might be
needed.
> Do you have a suggestion for a good, but not too expensive layer 3
> switch?
> >
if you might have to hire in expertise, the estiest to find already trained
people is probably Cisco.
I like the Catalyst 3560s for low end boxes, since they have most things you
might want with the advanced s/w, and you can add that later if need be -
but low end still means $3k list each, or $5k with the advanced s/w....)
http://www.cisco.com/en/US/products/hw/switches/ps5528/index.html
if that is too painful then Foundry, HP, maybe 3Com?
ultimate in low cost is possibly build a router on a linux PC or server with
some 10/100 cards.
> >
> > > etc.
> >
> > > Can somebody please point me in the right direction with this, since
> > > i'm a bit new to this kind ofsetup?
> >
> > a mid range router (Cisco 2811 or 3825) should be able to cope with 10M
even
> > if you need some processor intensive stuff turned on such as QoS and
> > multicast.
> >
> > but if you think you might want faster links later then a layer 3 switch
> > would be better (or if you already have a L3 capable box on the sites,
you
> > could just use a port on that).
> >
> > > Thanks,
> > > Dennes
> >
> > --
> > Regards
> >
> > stephen_h...@xyzworld.com - replace xyz with ntl
>
>
> Thanks for taking the time to help!
> Much appreciated.
> Dennes
--
Regards
stephen_hope@xyzworld.com - replace xyz with ntl
| 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML site map