I posted a few days ago on a requirement I had for a large-scale network emulator for voice/data classes. The emulator really needed to be a small telco switch, able to understand analog and ISDN dialing and route calls to ISDN channels or analog lines, as well as possibly doing frame switching. It needs to handle a large number of lines for a lab simulator, although a small number for a true central office switch -- probably 16-32 mixed analog and ISDN switched lines, also with some DACS-like functions for fractional T1.
So far, the Adtran Atlas series seems to be the leading candidate -- I'm working on a configuration that I'll confirm with the vendor on Monday. Several list members and other members have used the 800, which has been superceded by the 835. Do note that there are some special cases where a Cisco IPT device can talk to a PBX (e.g., Lucent G3) and think it's talking to a CO, but that's insufficiently general for my purposes. At 7:27 AM +0000 3/8/03, The Long and Winding Road wrote: >been fooling around with the B-Link 2 that a particular someone ( whose name >is not supposed to be mentioned here on this list ) sells at what seems to >be a reasonable price. > >not looking for specific answers - just a general question - ever get both B >channels to come up? just a yes or no. > >( ISDN is not my strongest point, but when working with unfamiliar >equipment, it helps to know the high level answer so I know whether or not >to go back to the seller or hit the books a little harder. ) Chuck's post was interesting in that there are problems even with smaller emulators. My next task, again luckily not on an individual budget, is to work some line impairment capabilities into the emulator, so I can demonstrate actual problems that WAN QoS has to solve. This will presumably get into both load generators to overload resources, as well as possibly precise delay/jitter generators. I've worked with the latter, but years ago. Some of the manufacturers involved included Hewlett-Packard and Hekimian Labs. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=64852&t=64852 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
