(usr-tc) Hiper ARC Questions
Hello, all. OK, this is probably going to sound *really* silly to all of you seasoned USR/3Com veterans out there, but it's a question about NetServers vs. Hiper ARC. As I understand it, and appear to have witnessed first hand, probably one of the wider known flaws of the NetServer's (even in the last official code release) was the UDP lag issues, and that a HiperARC doesn't exhibit this issue at all. I'm currently using Quad Digital Modem cards (mix of both single and double sided), latest firmware in them, PPP in modem, and v.90 enabled, in a 45A chassis So, I'm just verifying this before I go on a quest to find a reasonably priced Hiper ARC. Will the Hiper ARC will work with Quads? Do I need to have a Hiper NMC as well? Any special firmware/chassis requirements? What's the latest firmware revision of the Hiper ARC? I've got a few other questions as well, but I'll save those for separate threads later! Brad Gass - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.
I'm running a mixed setup, both quads and dsps in the same chassis talking to Arcs. The only problem that doesn't go away with upgrades is that the quad modems get "stuck" quite often. If I put them in an old Netserver chassis, they are fine. A sof reset on the affected ports will clear it up for a few days. I think I've even put a DSP in my old 45A test chassis and had the netserver see it, but that was long ago... Perhaps someone else could lend some info about putting an ARC in the old 45A chassis. Never done that myself... Charles | Charles Sprickman | Internet Channel | INCH System Administration Team | (212)243-5200 | spork@inch.com | access@inch.com On Sun, 15 Jul 2001, Brad Gass wrote:
Hello, all.
OK, this is probably going to sound *really* silly to all of you seasoned USR/3Com veterans out there, but it's a question about NetServers vs. Hiper ARC.
As I understand it, and appear to have witnessed first hand, probably one of the wider known flaws of the NetServer's (even in the last official code release) was the UDP lag issues, and that a HiperARC doesn't exhibit this issue at all. I'm currently using Quad Digital Modem cards (mix of both single and double sided), latest firmware in them, PPP in modem, and v.90 enabled, in a 45A chassis
So, I'm just verifying this before I go on a quest to find a reasonably priced Hiper ARC. Will the Hiper ARC will work with Quads? Do I need to have a Hiper NMC as well? Any special firmware/chassis requirements? What's the latest firmware revision of the Hiper ARC?
I've got a few other questions as well, but I'll save those for separate threads later!
Brad Gass
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- To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.
I think I've even put a DSP in my old 45A test chassis and had the netserver see it, but that was long ago...
Yeah, that works. We did that a few weeks ago during the transition from Quad/Netserver to DSP/ARC. We put the modems in first to see what, if any, connection issues arose so that we could be sure that issues were modem conpatability and what was ARC related. Only thing that came up was the infamous Motorola SM56.
Perhaps someone else could lend some info about putting an ARC in the old 45A chassis. Never done that myself...
Hmmm, haven't tried that... - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.
Also sprach Bob Purdon - Lists
I think I've even put a DSP in my old 45A test chassis and had the netserver see it, but that was long ago...
Yeah, that works. We did that a few weeks ago during the transition from Quad/Netserver to DSP/ARC. We put the modems in first to see what, if any, connection issues arose so that we could be sure that issues were modem conpatability and what was ARC related.
Only thing that came up was the infamous Motorola SM56.
Perhaps someone else could lend some info about putting an ARC in the old 45A chassis. Never done that myself...
Hmmm, haven't tried that...
Yes, you can run Arcs against quads, NETServers against DSPs, any of the four card sets will go in a 45A chassis (or even in a 35A chassis if you have any of those old power supplies left still around...same chassis as the 45, but lower rated power supply). You don't need a HiPer NMC to do any of this. Putting a HiPer NMC will not (I guess I should say should not since I don't actually *have* any HiPer NMC's) affect latency of data transfers as the NMCs are not ever involved in the actual transfer of customer data. I'd believe it if someone said that the HiPer NMCs will lower "latency" on SNMP queries to the box, but not the infamous "Quake Lag" type of issue. Oh...and on running DSPs against a NETServer, you can do it with the later code revisions on the NETServer...they added commands that let you set the number of ports per card, so you could set it to 24 ports on cards 14 and 15 for example, so you could tell the NETServer about the extra ports on the DSP cards. I don't remember the commands offhand for this, but do remember that you had to manually configure it. -- Jeff McAdams Email: jeffm@iglou.com Head Network Administrator Voice: (502) 966-3848 IgLou Internet Services (800) 436-4456 - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.
Oh...and on running DSPs against a NETServer, you can do it with the later code revisions on the NETServer...they added commands that let you set the number of ports per card, so you could set it to 24 ports on cards 14 and 15 for example, so you could tell the NETServer about the extra ports on the DSP cards. I don't remember the commands offhand for this, but do remember that you had to manually configure it.
From memory:
set density <slot> <modems-per-card> set modem startslot <xxx> - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.
We're still running some Netservers with quad cards without issue. You can run a Hiper arc with quads too. You don't need a Hiper nmc with that combo. It probably will get rid of some latency but again, we don't get complaints on our remaining ones. At 12:23 PM 7/15/2001 -0500, you wrote:
Hello, all.
OK, this is probably going to sound *really* silly to all of you seasoned USR/3Com veterans out there, but it's a question about NetServers vs. Hiper ARC.
As I understand it, and appear to have witnessed first hand, probably one of the wider known flaws of the NetServer's (even in the last official code release) was the UDP lag issues, and that a HiperARC doesn't exhibit this issue at all. I'm currently using Quad Digital Modem cards (mix of both single and double sided), latest firmware in them, PPP in modem, and v.90 enabled, in a 45A chassis
So, I'm just verifying this before I go on a quest to find a reasonably priced Hiper ARC. Will the Hiper ARC will work with Quads? Do I need to have a Hiper NMC as well? Any special firmware/chassis requirements? What's the latest firmware revision of the Hiper ARC?
I've got a few other questions as well, but I'll save those for separate threads later!
Brad Gass
- To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.
- To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.
participants (5)
-
Bob Purdon - Lists -
Brad Gass -
Charles Sprickman -
Greg Coffey -
Jeff Mcadams