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How do I get a DS10's onboard NIC into 100 mbps mode?

by mark＠wickensonline.co.uk

That's an excellent explanation, thank you. I would categorize my switches as cheap - they are Netgear GS605 - unmanaged GB 5 port switches at each end. Could you recommend an alternative that might cope with this scenario better? I'm presuming that a managed switch might offer more flexibility in configuring to handle this situation better? Regards, Mark. On Wed, 28 Sep 2011, hvlems at zonnet.nl wrote: The ascii graphics are pretty muche useless on my phone display. Your questions, as I undertand them, are: 1 the linkspeed is between station and switch? 2 how come other stations are affected? The linkspeed is indeed an "agreement" between switch and system. Two characteristics are importand: bitrate and half or full duplex. The bitrate must match this is essential. The duplex attribute may mismatch and on low traffic links you might get away with it. Generally, coax links are always half duplex and UTP ports tend to be full duplex. There is very little 10 Mb/s equipment that supports full duplex though. Auto sensing tends to err on the safe side and your system ends up at 10 or 100 Mb/s half duplex. Auto negotiating mode will result in an appropriate setting, 100 Mb/s or 1 Gb/s full duplex. Old ethernet equipment, 10BASExxx gear won't do this at all. You're lucky if you can select between AUI and thinwire coax, sometimes UTP is offered. The second question depends on the quality of the switch. If a switch receives data at 10 Mb/s and transmits them over a 1000 Mb/s link then it depends on the design on how well this speed difference is handled and the way it is hidden for the other ports. If the switch has very little own memory, it must forward each packet as quickly as possible. In the mean time all other ports may receive less attention. Store and forward may be a better strategy to handle these differences in linkspeeds. The cheaper the switch is, it will probably offer just one strategy andd usually this works best in homogeneous networks (everything operates at the same bitrate and duplex mode). A cheap switch offers about the same throughput volume as an old fashioned repeater: then traffic between any set of two ports and all other traffic gets backed up at the systems. Is this an answer to your question? Hans -----Original Message----- From: Mark Wickens <mark at wickensonline.co.uk> Sender: owner-hecnet at Update.UU.SE Date: Wed, 28 Sep 2011 09:20:30 To: <hecnet at Update.UU.SE> Reply-To: hecnet at Update.UU.SESubject: Re: [HECnet] How do I get a DS10's onboard NIC into 100 mbps mode? I used 'fastfd' as was hinted at in the <document found via random google hit> I was looking at at the time. On this subject, if you don't mind me asking, am I right in thinking that the speed that is setup for the network connection exists solely between the machine and the switch? I was experiencing some weird behaviour the other day that suggested otherwise. I have my work machine and a VAXstation 4000/VLC connected to a gigabit switch, which is in turn wired down to another gigabit switch in the basement. The VAXstation is a diskless satellite node off an AlphaServer 1000A. (I can feel an ascii art diagram coming on) Attic VAXstation O O Work Sunray + VPN Router 10MB | | 100MB ------ | | GB switch ______ | | 1GB link ~ ~ ------ | | GB switch ------ 100MB | | 100MB AlphaServer 100A O O Vigor ADSL Router ~ * big, wide world So why, if I a have a terminal on the VAXstation scrolling at high speed do I see my work machine (which is connected to the internet) significantly slow down? It looks to me like the whole link between the two GB switches is being dragged down to 10MB. Would the 10MB link working at half-duplex make any difference to the question? Thanks for the help, Mark. On Wed, 28 Sep 2011, hvlems at zonnet.nl wrote: Fast translates as 100 Mb/s half duplex and you wouldn't want that. Auto is not always sufficient. There are two auto modes, auto negotiate and auto sensing. IMHO the latter is better avoided. ------Origineel bericht------ Van: Oleg Safiullin Afzender: owner-hecnet at Update.UU.SE Aan: hecnet at Update.UU.SE Beantwoorden: hecnet at Update.UU.SE Onderwerp: Re: [HECnet] How do I get a DS10's onboard NIC into 100 mbps mode? Verzonden: 28 september 2011 08:31 Use "set ewb0_mode fast" or "set ewb0_mode auto" SRM command. Sampsa Laine wrote: I just looked at CHIMPY's network device and noticed it's in 10 mbps mode. --- snip --- $ show dev ewb0/full Device EWB0:, device type DE500, is online, network device, error logging is enabled, device is a template only. Error count 2 Operations completed 0 Owner process "" Owner UIC [SYSTEM] Owner process ID 00000000 Dev Prot S:RWPL,O:RWPL,G,W Reference count 0 Default buffer size 512 Operating characteristics: Link up. Speed (Mbits/sec) 10 Def. MAC addr 08-00-2B-87-5B-87 Current MAC addr AA-00-04-00-91-21 -- snip -- I thought they support 100 mbps as well? How do I turn that on? It's currently connected to a Gbps switch. Sampsa

14 years, 4 months

How do I get a DS10's onboard NIC into 100 mbps mode?

by hvlems＠zonnet.nl

The ascii graphics are pretty muche useless on my phone display. Your questions, as I undertand them, are: 1 the linkspeed is between station and switch? 2 how come other stations are affected? The linkspeed is indeed an "agreement" between switch and system. Two characteristics are importand: bitrate and half or full duplex. The bitrate must match this is essential. The duplex attribute may mismatch and on low traffic links you might get away with it. Generally, coax links are always half duplex and UTP ports tend to be full duplex. There is very little 10 Mb/s equipment that supports full duplex though. Auto sensing tends to err on the safe side and your system ends up at 10 or 100 Mb/s half duplex. Auto negotiating mode will result in an appropriate setting, 100 Mb/s or 1 Gb/s full duplex. Old ethernet equipment, 10BASExxx gear won't do this at all. You're lucky if you can select between AUI and thinwire coax, sometimes UTP is offered. The second question depends on the quality of the switch. If a switch receives data at 10 Mb/s and transmits them over a 1000 Mb/s link then it depends on the design on how well this speed difference is handled and the way it is hidden for the other ports. If the switch has very little own memory, it must forward each packet as quickly as possible. In the mean time all other ports may receive less attention. Store and forward may be a better strategy to handle these differences in linkspeeds. The cheaper the switch is, it will probably offer just one strategy andd usually this works best in homogeneous networks (everything operates at the same bitrate and duplex mode). A cheap switch offers about the same throughput volume as an old fashioned repeater: then traffic between any set of two ports and all other traffic gets backed up at the systems. Is this an answer to your question? Hans -----Original Message----- From: Mark Wickens <mark at wickensonline.co.uk> Sender: owner-hecnet at Update.UU.SE Date: Wed, 28 Sep 2011 09:20:30 To: <hecnet at Update.UU.SE> Reply-To: hecnet at Update.UU.SESubject: Re: [HECnet] How do I get a DS10's onboard NIC into 100 mbps mode? I used 'fastfd' as was hinted at in the <document found via random google hit> I was looking at at the time. On this subject, if you don't mind me asking, am I right in thinking that the speed that is setup for the network connection exists solely between the machine and the switch? I was experiencing some weird behaviour the other day that suggested otherwise. I have my work machine and a VAXstation 4000/VLC connected to a gigabit switch, which is in turn wired down to another gigabit switch in the basement. The VAXstation is a diskless satellite node off an AlphaServer 1000A. (I can feel an ascii art diagram coming on) Attic VAXstation O O Work Sunray + VPN Router 10MB | | 100MB ------ | | GB switch ______ | | 1GB link ~ ~ ------ | | GB switch ------ 100MB | | 100MB AlphaServer 100A O O Vigor ADSL Router ~ * big, wide world So why, if I a have a terminal on the VAXstation scrolling at high speed do I see my work machine (which is connected to the internet) significantly slow down? It looks to me like the whole link between the two GB switches is being dragged down to 10MB. Would the 10MB link working at half-duplex make any difference to the question? Thanks for the help, Mark. On Wed, 28 Sep 2011, hvlems at zonnet.nl wrote: Fast translates as 100 Mb/s half duplex and you wouldn't want that. Auto is not always sufficient. There are two auto modes, auto negotiate and auto sensing. IMHO the latter is better avoided. ------Origineel bericht------ Van: Oleg Safiullin Afzender: owner-hecnet at Update.UU.SE Aan: hecnet at Update.UU.SE Beantwoorden: hecnet at Update.UU.SE Onderwerp: Re: [HECnet] How do I get a DS10's onboard NIC into 100 mbps mode? Verzonden: 28 september 2011 08:31 Use "set ewb0_mode fast" or "set ewb0_mode auto" SRM command. Sampsa Laine wrote: I just looked at CHIMPY's network device and noticed it's in 10 mbps mode. --- snip --- $ show dev ewb0/full Device EWB0:, device type DE500, is online, network device, error logging is enabled, device is a template only. Error count 2 Operations completed 0 Owner process "" Owner UIC [SYSTEM] Owner process ID 00000000 Dev Prot S:RWPL,O:RWPL,G,W Reference count 0 Default buffer size 512 Operating characteristics: Link up. Speed (Mbits/sec) 10 Def. MAC addr 08-00-2B-87-5B-87 Current MAC addr AA-00-04-00-91-21 -- snip -- I thought they support 100 mbps as well? How do I turn that on? It's currently connected to a Gbps switch. Sampsa

14 years, 4 months

How do I get a DS10's onboard NIC into 100 mbps mode?

by mark＠wickensonline.co.uk

I used 'fastfd' as was hinted at in the <document found via random google hit> I was looking at at the time. On this subject, if you don't mind me asking, am I right in thinking that the speed that is setup for the network connection exists solely between the machine and the switch? I was experiencing some weird behaviour the other day that suggested otherwise. I have my work machine and a VAXstation 4000/VLC connected to a gigabit switch, which is in turn wired down to another gigabit switch in the basement. The VAXstation is a diskless satellite node off an AlphaServer 1000A. (I can feel an ascii art diagram coming on) Attic VAXstation O O Work Sunray + VPN Router 10MB | | 100MB ------ | | GB switch ______ | | 1GB link ~ ~ ------ | | GB switch ------ 100MB | | 100MB AlphaServer 100A O O Vigor ADSL Router ~ * big, wide world So why, if I a have a terminal on the VAXstation scrolling at high speed do I see my work machine (which is connected to the internet) significantly slow down? It looks to me like the whole link between the two GB switches is being dragged down to 10MB. Would the 10MB link working at half-duplex make any difference to the question? Thanks for the help, Mark. On Wed, 28 Sep 2011, hvlems at zonnet.nl wrote: Fast translates as 100 Mb/s half duplex and you wouldn't want that. Auto is not always sufficient. There are two auto modes, auto negotiate and auto sensing. IMHO the latter is better avoided. ------Origineel bericht------ Van: Oleg Safiullin Afzender: owner-hecnet at Update.UU.SE Aan: hecnet at Update.UU.SE Beantwoorden: hecnet at Update.UU.SE Onderwerp: Re: [HECnet] How do I get a DS10's onboard NIC into 100 mbps mode? Verzonden: 28 september 2011 08:31 Use "set ewb0_mode fast" or "set ewb0_mode auto" SRM command. Sampsa Laine wrote: I just looked at CHIMPY's network device and noticed it's in 10 mbps mode. --- snip --- $ show dev ewb0/full Device EWB0:, device type DE500, is online, network device, error logging is enabled, device is a template only. Error count 2 Operations completed 0 Owner process "" Owner UIC [SYSTEM] Owner process ID 00000000 Dev Prot S:RWPL,O:RWPL,G,W Reference count 0 Default buffer size 512 Operating characteristics: Link up. Speed (Mbits/sec) 10 Def. MAC addr 08-00-2B-87-5B-87 Current MAC addr AA-00-04-00-91-21 -- snip -- I thought they support 100 mbps as well? How do I turn that on? It's currently connected to a Gbps switch. Sampsa

14 years, 4 months

How do I get a DS10's onboard NIC into 100 mbps mode?

by hvlems＠zonnet.nl

Fast translates as 100 Mb/s half duplex and you wouldn't want that. Auto is not always sufficient. There are two auto modes, auto negotiate and auto sensing. IMHO the latter is better avoided. ------Origineel bericht------ Van: Oleg Safiullin Afzender: owner-hecnet at Update.UU.SE Aan: hecnet at Update.UU.SE Beantwoorden: hecnet at Update.UU.SE Onderwerp: Re: [HECnet] How do I get a DS10's onboard NIC into 100 mbps mode? Verzonden: 28 september 2011 08:31 Use "set ewb0_mode fast" or "set ewb0_mode auto" SRM command. Sampsa Laine wrote: I just looked at CHIMPY's network device and noticed it's in 10 mbps mode. --- snip --- $ show dev ewb0/full Device EWB0:, device type DE500, is online, network device, error logging is enabled, device is a template only. Error count 2 Operations completed 0 Owner process "" Owner UIC [SYSTEM] Owner process ID 00000000 Dev Prot S:RWPL,O:RWPL,G,W Reference count 0 Default buffer size 512 Operating characteristics: Link up. Speed (Mbits/sec) 10 Def. MAC addr 08-00-2B-87-5B-87 Current MAC addr AA-00-04-00-91-21 -- snip -- I thought they support 100 mbps as well? How do I turn that on? It's currently connected to a Gbps switch. Sampsa

14 years, 4 months

How do I get a DS10's onboard NIC into 100 mbps mode?

by mark＠wickensonline.co.uk

Yes, I can confirm this - I recently install a DA500 network card in an AlphaServer 300 and I had to explicitly set fastfd mode on the network card device at the SRM console to get it to work at full speed once booted into VMS. Mark. On Wed, 28 Sep 2011, Oleg Safiullin wrote: Use "set ewb0_mode fast" or "set ewb0_mode auto" SRM command. Sampsa Laine wrote: I just looked at CHIMPY's network device and noticed it's in 10 mbps mode. --- snip --- $ show dev ewb0/full Device EWB0:, device type DE500, is online, network device, error logging is enabled, device is a template only. Error count 2 Operations completed 0 Owner process "" Owner UIC [SYSTEM] Owner process ID 00000000 Dev Prot S:RWPL,O:RWPL,G,W Reference count 0 Default buffer size 512 Operating characteristics: Link up. Speed (Mbits/sec) 10 Def. MAC addr 08-00-2B-87-5B-87 Current MAC addr AA-00-04-00-91-21 -- snip -- I thought they support 100 mbps as well? How do I turn that on? It's currently connected to a Gbps switch. Sampsa

14 years, 4 months

How do I get a DS10's onboard NIC into 100 mbps mode?

by form＠pdp-11.org.ru

Use "set ewb0_mode fast" or "set ewb0_mode auto" SRM command. Sampsa Laine wrote: I just looked at CHIMPY's network device and noticed it's in 10 mbps mode. --- snip --- $ show dev ewb0/full Device EWB0:, device type DE500, is online, network device, error logging is enabled, device is a template only. Error count 2 Operations completed 0 Owner process "" Owner UIC [SYSTEM] Owner process ID 00000000 Dev Prot S:RWPL,O:RWPL,G,W Reference count 0 Default buffer size 512 Operating characteristics: Link up. Speed (Mbits/sec) 10 Def. MAC addr 08-00-2B-87-5B-87 Current MAC addr AA-00-04-00-91-21 -- snip -- I thought they support 100 mbps as well? How do I turn that on? It's currently connected to a Gbps switch. Sampsa

14 years, 4 months

How do I get a DS10's onboard NIC into 100 mbps mode?

by hvlems＠zonnet.nl

It's an srm setting. Set ewa0_mode autonegotiate Or to fastfd, whatever strikes your fancy ------Origineel bericht------ Van: Sampsa Laine Afzender: owner-hecnet at Update.UU.SE Aan: hecnet at Update.UU.SE Beantwoorden: hecnet at Update.UU.SE Onderwerp: [HECnet] How do I get a DS10's onboard NIC into 100 mbps mode? Verzonden: 28 september 2011 01:27 I just looked at CHIMPY's network device and noticed it's in 10 mbps mode. --- snip --- $ show dev ewb0/full Device EWB0:, device type DE500, is online, network device, error logging is enabled, device is a template only. Error count 2 Operations completed 0 Owner process "" Owner UIC [SYSTEM] Owner process ID 00000000 Dev Prot S:RWPL,O:RWPL,G,W Reference count 0 Default buffer size 512 Operating characteristics: Link up. Speed (Mbits/sec) 10 Def. MAC addr 08-00-2B-87-5B-87 Current MAC addr AA-00-04-00-91-21 -- snip -- I thought they support 100 mbps as well? How do I turn that on? It's currently connected to a Gbps switch. Sampsa

14 years, 4 months

How do I get a DS10's onboard NIC into 100 mbps mode?

by sampsa＠mac.com

I just looked at CHIMPY's network device and noticed it's in 10 mbps mode. --- snip --- $ show dev ewb0/full Device EWB0:, device type DE500, is online, network device, error logging is enabled, device is a template only. Error count 2 Operations completed 0 Owner process "" Owner UIC [SYSTEM] Owner process ID 00000000 Dev Prot S:RWPL,O:RWPL,G,W Reference count 0 Default buffer size 512 Operating characteristics: Link up. Speed (Mbits/sec) 10 Def. MAC addr 08-00-2B-87-5B-87 Current MAC addr AA-00-04-00-91-21 -- snip -- I thought they support 100 mbps as well? How do I turn that on? It's currently connected to a Gbps switch. Sampsa

14 years, 4 months

DS10 memory

by hvlems＠zonnet.nl

The DS20(E) also uses 200 pin memory. I must have been looking at the wrong webpage, can't imagine that the Toshiiba datasheet is wrong. My apologies for the confusion Hans -----Original Message----- From: "John H. Reinhardt" <johnhreinhardt at yahoo.com> Sender: owner-hecnet at Update.UU.SE Date: Sat, 24 Sep 2011 12:14:11 To: <hecnet at Update.UU.SE> Reply-To: hecnet at Update.UU.SECc: H Vlems<hvlems at zonnet.nl> Subject: Re: [HECnet] DS10 memory I know for sure the DS10 memory is 200-pin because I just pulled one out and looked at it. Now I'll have to pull a DS-20 chip and see if they really are different. I thought they were the same also. John H. Reinhardt On 9/24/11 11:57 AM, H Vlems wrote: The memory is 168 pin SDRAM

14 years, 4 months

DS10 memory

by mark＠wickensonline.co.uk

I have a DS10L, so can check for anything you need to know. I ran my DS10L with an IDE disk for ages and didn't really notice much in the way of performance issues, but then I rarely use computers to the point where it starts becoming an issue. Since then I've installed a SCSI card (and consequently removed the ATI7500 PCI graphics card) and a 68-pin 146GB drive. I could do with that drive in a SBB in SLAVE, but as it's 68 pin and not SCA I'm out of luck. Will have to pick one up off ebay (I noticed that what I thought was the complete DECUS archive on SLAVE:: is in fact only a subset. The full archive is 70GB, so I need to increase capacity from the current 36GB drive) I've been having my own fun today - pulled the ZX6000 out of the basement to have a go at installing Debian 6.0.2.1. The previous problem (not recognising the DVD-ROM drive after boot, somewhat serious) has been replaced with a different problem at the end of installation where the tool to install the EFI boot files won't find the EFI boot partition, which is a small FAT partition created at the start of the disk. The partition is there - a google search shows one other person with a similar issue. The OpenVMS installation also needs attention - it wouldn't start up CDE. I had a play with HP/UX and did manage to configure that to start CDE at the end of booting, and indeed have just configured it up to use the ACER 24" 1920x1080 panel. Sometime before I last went to sleep I must have installed a load of software - including Firefox. Weird running firefox on the ZX6000. Seems to work OK however (using it now to access gmail). I plugged my area router, SLAVE (4.254) into a switch hanging off which was my laptop with 3G dongle and Johnnys bridge, it connected up with my wrapped bridge on my ADSL connection. The wrapper successfully detected an IP address change at the 3G end and SIGHUP'ed the bridge program, which pulled in the new IP address. A delay of about 5 minutes is to be expected, but it worked very nicely! The ZX6000 initially reported an unrecoverable problem with DRAM slots 2A/2B - I couldn't get it to boot so was forced to pull the RAM, taking it from 16GB to 12GB. I cleaned the contacts and tried reseating the RAM to noavail. I ran the box for a while (the ZX6000 always gets toasy warm, good as a room heater in winter) then swapped the RAM in slots 0A/0B into 2A/2B and inserted the two pulled RAM modules into 0A/0B. Booted fine no problems. I have fun with the memory in this machine before - apparently they are very picky about modules and configuration. Presumably also temperature, time of day, season of year etc. Not exactly confidence inspiring in an 'enterprise' system. Anyway, at least for the moment, no harm done. Mark.

14 years, 4 months

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