5 Sep
2025
5 Sep
'25
5:59 p.m.
Hello, I currently have 8 simh vax machines on Hecnet all working fine. Its a mix of
machines running VMS 3.5 to 7.3 and while some were a bit of a challenge they all talk. I
recently configured a Microvax II with MicroVMS 4.6 as well as Decnet 4.6 and assigned it
to my area 31. The network loads without errors and I am able to SET HOST to itself but
to no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS shows the hosts I manually
defined. SHOW KNOWN CIRCUITS CHARACTERISTICS shows a designated router in my area so its
finding that. If I bring a router node down it successfully finds another in the area.
The microvax node:
Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
Circuit = QNA-0
State = on
Service = disabled
Designated router = 31.278
Cost = 4
Router priority = 64
Hello timer = 15
Type = Ethernet
Adjacent node = 31.278
Listen timer = 45
The working nodes match with the exception of the circuit. All the other machines are
UNA-0 (UNIBUS) and this one is of course QNA-0 Could this be the problem?
Brian.
5 Sep
5 Sep
6:37 p.m.
No. Qbus ethernet or Unibus ethernet makes no difference here.
Does anything else work? NCP to other nodes? Phone? File access?
What's the address of that microvax?
Johnny
On 2025-09-05 17:59, Brian Roth wrote:
Hello, I currently have 8 simh vax machines on Hecnet
all working fine.
Its a mix of machines running VMS 3.5 to 7.3 and while some were a bit
of a challenge they all talk. I recently configured a Microvax II with
MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
network loads without errors and I am able to SET HOST to itself but to
no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS shows the
hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS shows a
designated router in my area so its finding that. If I bring a router
node down it successfully finds another in the area.
The microvax node:
Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
Circuit = QNA-0
State = on
Service = disabled
Designated router = 31.278
Cost = 4
Router priority = 64
Hello timer = 15
Type = Ethernet
Adjacent node =31.278
Listen timer = 45
The working nodes match with the exception of the circuit. All the other
machines are UNA-0 (UNIBUS) and this one is of course QNA-0 Couldthis
be the problem?
Brian.
_______________________________________________
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
6:45 p.m.
The address is 31.282. No File access, Phone or NCP Tell to other nodes but it is still
able to go out and find a router. It (31.282) can phone itself and set host but other
nodes it just hangs. If I phone another node it will just sit at "Establishing Decnet
Link and then error to "Node is not reachable.
Brian.
On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist
<bqt(a)softjar.se> wrote:
No. Qbus ethernet or Unibus ethernet makes no difference here.
Does anything else work? NCP to other nodes? Phone? File access?
What's the address of that microvax?
Johnny
On 2025-09-05 17:59, Brian Roth wrote:
Hello, I currently have 8 simh vax machines on Hecnet
all working fine.
Its a mix of machines running VMS 3.5 to 7.3 and while some were a bit
of a challenge they all talk. I recently configured a Microvax II with
MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
network loads without errors and I am able to SET HOST to itself but to
no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS shows the
hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS shows a
designated router in my area so its finding that. If I bring a router
node down it successfully finds another in the area.
The microvax node:
Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
Circuit = QNA-0
State = on
Service = disabled
Designated router = 31.278
Cost = 4
Router priority = 64
Hello timer = 15
Type = Ethernet
Adjacent node =31.278
Listen timer = 45
The working nodes match with the exception of the circuit. All the other
machines are UNA-0 (UNIBUS) and this one is of course QNA-0 Couldthis
be the problem?
Brian.
_______________________________________________
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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6:51 p.m.
31.279 is my Pydecnet connection to 31.3 (PYRTR)
NCP>sh known nodes
Known Node Volatile Summary as of 5-SEP-1987 12:45:04
Executor node = 31.282 (SCOOBY)
State = on
Identification = DECnet-VAX V4.6, VMS V4.6
Node State Active Delay Circuit Next node
Links
31.1 (IMPVAX) QNA-0 31.278
31.275 (JEEP2) QNA-0 31.278
31.276 (BENNY) QNA-0 31.278
31.277 (PEANUT) QNA-0 31.278
31.279 (GEEZER) QNA-0 31.278
On Friday, September 5, 2025 at 12:45:30 PM EDT, Brian Roth
<abacos_98(a)yahoo.com> wrote:
The address is 31.282. No File access, Phone or NCP Tell to other nodes but it is still
able to go out and find a router. It (31.282) can phone itself and set host but other
nodes it just hangs. If I phone another node it will just sit at "Establishing Decnet
Link and then error to "Node is not reachable.
Brian.
On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist
<bqt(a)softjar.se> wrote:
No. Qbus ethernet or Unibus ethernet makes no difference here.
Does anything else work? NCP to other nodes? Phone? File access?
What's the address of that microvax?
Johnny
On 2025-09-05 17:59, Brian Roth wrote:
Hello, I currently have 8 simh vax machines on Hecnet
all working fine.
Its a mix of machines running VMS 3.5 to 7.3 and while some were a bit
of a challenge they all talk. I recently configured a Microvax II with
MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
network loads without errors and I am able to SET HOST to itself but to
no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS shows the
hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS shows a
designated router in my area so its finding that. If I bring a router
node down it successfully finds another in the area.
The microvax node:
Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
Circuit = QNA-0
State = on
Service = disabled
Designated router = 31.278
Cost = 4
Router priority = 64
Hello timer = 15
Type = Ethernet
Adjacent node =31.278
Listen timer = 45
The working nodes match with the exception of the circuit. All the other
machines are UNA-0 (UNIBUS) and this one is of course QNA-0 Couldthis
be the problem?
Brian.
_______________________________________________
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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7:14 p.m.
Well, GEEZER (31.278) is not seeing 31.282 as up. So that's why you have
a problem. This usually means that packets are working in one direction,
but not the other.
Was this a real machine? How have you connected it to the rest of the
network?
Johnny
On 2025-09-05 18:45, Brian Roth wrote:
The address is 31.282. No File access, Phone or NCP
Tell to other nodes
but it is still able to go out and find a router. It (31.282) can phone
itself and set host but other nodes it just hangs. If I phone another
node it will just sit at "Establishing Decnet Link and then error to
"Node is not reachable.
Brian.
On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist
<bqt(a)softjar.se> wrote:
No. Qbus ethernet or Unibus ethernet makes no difference here.
Does anything else work? NCP to other nodes? Phone? File access?
What's the address of that microvax?
Johnny
On 2025-09-05 17:59, Brian Roth wrote:
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Hello, I currently have 8 simh vax machines on
Hecnet all working fine.
Its a mix of machines running VMS 3.5 to 7.3 and while some were a bit
of a challenge they all talk. I recently configured a Microvax II with
MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
network loads without errors and I am able to SET HOST to itself butto
no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS shows the
hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS shows a
designated router in my area so its finding that. If I bring a router
node down it successfully finds another in the area.
The microvax node:
Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
Circuit = QNA-0
State = on
Service = disabled
Designated router = 31.278
Cost =4
Router priority =64
Hello timer = 15
Type = Ethernet
Adjacent node =31.278
Listen timer = 45
The working nodes match with the exception of the circuit. All the other
machines are UNA-0 (UNIBUS) and this one is of course QNA-0 Couldthis
be the problem?
Brian.
_______________________________________________
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<mailto:hecnet@lists.dfupdate.se>
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se <mailto:bqt@softjar.se> || Reading
murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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7:22 p.m.
Is it WiFi? That doesn't work with DECnet MAC addresses (it doesn't like it when
the NIC changes its address to aa-00-04-00-xx-yy).
paul
On Sep 5, 2025, at 1:14 PM, Johnny Billquist
<bqt(a)softjar.se> wrote:
Well, GEEZER (31.278) is not seeing 31.282 as up. So that's why you have a problem.
This usually means that packets are working in one direction, but not the other.
Was this a real machine? How have you connected it to the rest of the network?
Johnny
On 2025-09-05 18:45, Brian Roth wrote:
The address is 31.282. No File access, Phone or
NCP Tell to other nodes but it is still able to go out and find a router. It (31.282) can
phone itself and set host but other nodes it just hangs. If I phone another node it will
just sit at "Establishing Decnet Link and then error to "Node is not reachable.
Brian.
On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist <bqt(a)softjar.se
<mailto:bqt@softjar.se>> wrote:
No. Qbus ethernet or Unibus ethernet makes no difference here.
Does anything else work? NCP to other nodes? Phone? File access?
What's the address of that microvax?
Johnny
On 2025-09-05 17:59, Brian Roth wrote:
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
_______________________________________________
HECnet mailing list -- hecnet(a)lists.dfupdate.se
To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se Hello, I currently have 8 simh vax machines on
Hecnet all working fine.
Its a mix of machines running VMS 3.5 to 7.3 and while some were a bit
of a challenge they all talk. I recently configured a Microvax II with
MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
network loads without errors and I am able to SET HOST to itself butto
no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS shows the
hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS shows a
designated router in my area so its finding that. If I bring a router
node down it successfully finds another in the area.
The microvax node:
Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
Circuit = QNA-0
State = on
Service = disabled
Designated router = 31.278
Cost =4
Router priority =64
Hello timer = 15
Type = Ethernet
Adjacent node =31.278
Listen timer = 45
The working nodes match with the exception of the circuit. All the other
machines are UNA-0 (UNIBUS) and this one is of course QNA-0 Couldthis
be the problem?
Brian.
_______________________________________________
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se <mailto:bqt@softjar.se> <mailto:bqt@softjar.se>
|| Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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7:27 p.m.
That's one possibility. Another if he's running on some kind of emulator
on a system that don't actually allow programmatic change of the MAC
address, and you need to set the MAC correctly in the emulator before
starting up. And if it is real hardware, is it connected to some switch
then? 10baseT? Does he have an adapter that can do SQE?
There are many possible ways things could not work. What we can see is
just that incoming broadcast/multicast packets work, but so far nothing
else.
Johnny
On 2025-09-05 19:22, Paul Koning wrote:
Is it WiFi? That doesn't work with DECnet MAC
addresses (it doesn't
like it when the NIC changes its address to aa-00-04-00-xx-yy).
paul
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
On Sep 5, 2025, at 1:14 PM, Johnny Billquist
<bqt(a)softjar.se> wrote:
Well, GEEZER (31.278) is not seeing 31.282 as up. So that's why you
have a problem. This usually means that packets are working in one
direction, but not the other.
Was this a real machine? How have you connected it to the rest of the
network?
Johnny
On 2025-09-05 18:45, Brian Roth wrote:
_______________________________________________
HECnet mailing list -- hecnet(a)lists.dfupdate.se
To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se The address is 31.282. No File access, Phone or
NCP Tell to other
nodes but it is still able to go out and find a router. It (31.282)
can phone itself and set host but other nodes it just hangs. If I
phone another node it will just sit at "Establishing Decnet Link and
then error to "Node is not reachable.
Brian.
On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist
<bqt(a)softjar.se <mailto:bqt@softjar.se>> wrote:
No. Qbus ethernet or Unibus ethernet makes no difference here.
Does anything else work? NCP to other nodes? Phone? File access?
What's the address of that microvax?
Johnny
On 2025-09-05 17:59, Brian Roth wrote:
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
_______________________________________________
HECnet mailing list -- hecnet(a)lists.dfupdate.se
To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se Hello, I currently have 8 simh vax machines on
Hecnet all working fine.
Its a mix of machines running VMS 3.5 to 7.3 and while some were a bit
of a challenge they all talk. I recently configured a Microvax II with
MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
network loads without errors and I am able to SET HOST to itself butto
no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS shows the
hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS showsa
designated router in my area so its finding that. If I bring a router
node down it successfully finds another in the area.
The microvax node:
Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
Circuit = QNA-0
State = on
Service = disabled
Designated router = 31.278
Cost =4
Router priority =64
Hello timer = 15
Type = Ethernet
Adjacent node =31.278
Listen timer = 45
The working nodes match with the exception of the circuit. All the
other
machines are UNA-0 (UNIBUS) and this one is of
course QNA-0 Couldthis
be the problem?
Brian.
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HECnet mailing list --hecnet(a)lists.dfupdate.se
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email:bqt@softjar.se <mailto:bqt@softjar.se><mailto:bqt@softjar.se
<mailto:bqt@softjar.se>> || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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7:57 p.m.
I thought SQE failure is only a warning and would not stop the device from working.
pul
On Sep 5, 2025, at 1:27 PM, Johnny Billquist
<bqt(a)softjar.se> wrote:
That's one possibility. Another if he's running on some kind of emulator on a
system that don't actually allow programmatic change of the MAC address, and you need
to set the MAC correctly in the emulator before starting up. And if it is real hardware,
is it connected to some switch then? 10baseT? Does he have an adapter that can do SQE?
There are many possible ways things could not work. What we can see is just that incoming
broadcast/multicast packets work, but so far nothing else.
Johnny
On 2025-09-05 19:22, Paul Koning wrote:
Is it WiFi? That doesn't work with DECnet
MAC addresses (it doesn't like it when the NIC changes its address to
aa-00-04-00-xx-yy).
paul
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
_______________________________________________
HECnet mailing list -- hecnet(a)lists.dfupdate.se
To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se On Sep 5, 2025, at 1:14 PM, Johnny Billquist
<bqt(a)softjar.se> wrote:
Well, GEEZER (31.278) is not seeing 31.282 as up. So that's why you have a problem.
This usually means that packets are working in one direction, but not the other.
Was this a real machine? How have you connected it to the rest of the network?
Johnny
On 2025-09-05 18:45, Brian Roth wrote:
_______________________________________________
HECnet mailing list -- hecnet(a)lists.dfupdate.se
To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se The address is 31.282. No File access, Phone or
NCP Tell to other nodes but it is still able to go out and find a router. It (31.282) can
phone itself and set host but other nodes it just hangs. If I phone another node it will
just sit at "Establishing Decnet Link and then error to "Node is not reachable.
Brian.
On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist <bqt(a)softjar.se
<mailto:bqt@softjar.se>> wrote:
No. Qbus ethernet or Unibus ethernet makes no difference here.
Does anything else work? NCP to other nodes? Phone? File access?
What's the address of that microvax?
Johnny
On 2025-09-05 17:59, Brian Roth wrote:
> Hello, I currently have 8 simh vax machines on Hecnet all working fine.
> Its a mix of machines running VMS 3.5 to 7.3 and while some were a bit
> of a challenge they all talk. I recently configured a Microvax II with
> MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
> network loads without errors and I am able to SET HOST to itself butto
> no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS shows the
> hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS showsa
> designated router in my area so its finding that. If I bring a router
> node down it successfully finds another in the area.
>
> The microvax node:
>
> Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
>
> Circuit = QNA-0
>
> State = on
> Service = disabled
> Designated router = 31.278
> Cost =4
> Router priority =64
> Hello timer = 15
> Type = Ethernet
> Adjacent node =31.278
> Listen timer = 45
>
> The working nodes match with the exception of the circuit. All the other
> machines are UNA-0 (UNIBUS) and this one is of course QNA-0 Couldthis
> be the problem?
>
> Brian.
>
>
> _______________________________________________
> HECnet mailing list --hecnet(a)lists.dfupdate.se
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email:bqt@softjar.se <mailto:bqt@softjar.se><mailto:bqt@softjar.se
<mailto:bqt@softjar.se>> || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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8:04 p.m.
I've seen issues sometimes, but I don't know the full extent of what the
exact results might be.
But don't matter. Now we know they are all simh instances.
Johnny
On 2025-09-05 19:57, Paul Koning wrote:
I thought SQE failure is only a warning and would not
stop the device from working.
pul
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
On Sep 5, 2025, at 1:27 PM, Johnny Billquist
<bqt(a)softjar.se> wrote:
That's one possibility. Another if he's running on some kind of emulator on a
system that don't actually allow programmatic change of the MAC address, and you need
to set the MAC correctly in the emulator before starting up. And if it is real hardware,
is it connected to some switch then?10baseT? Does he have an adapter that can do SQE?
There are many possible ways things could not work. What we can see isjust that incoming
broadcast/multicast packets work, but so far nothing else.
Johnny
On 2025-09-05 19:22, Paul Koning wrote:
_______________________________________________
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To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se Is it WiFi? That doesn't work with DECnet
MAC addresses (it doesn't like it when the NIC changes its address to
aa-00-04-00-xx-yy).
paul
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se On Sep 5, 2025, at 1:14 PM, Johnny Billquist
<bqt(a)softjar.se> wrote:
Well, GEEZER (31.278) is not seeing 31.282 as up. So that's why you have a problem.
This usually means that packets are working in one direction, but not the other.
Was this a real machine? How have you connected it to the rest of the network?
Johnny
On 2025-09-05 18:45, Brian Roth wrote:
> The address is 31.282. No File access, Phone or NCP Tell to other nodes but it is
still able to go out and find a router. It (31.282) can phone itself and set host but
other nodes it just hangs. If I phone anothernode it will just sit at "Establishing
Decnet Link and then error to "Node is not reachable.
> Brian.
> On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist <bqt(a)softjar.se
<mailto:bqt@softjar.se>> wrote:
> No. Qbus ethernet or Unibus ethernet makes no difference here.
> Does anything else work? NCP to other nodes? Phone? File access?
> What's the address of that microvax?
> Johnny
> On 2025-09-05 17:59, Brian Roth wrote:
>> Hello, I currently have 8 simh vax machines on Hecnet all working fine.
>> Its a mix of machines running VMS 3.5 to 7.3 and while some were abit
>> of a challenge they all talk. I recently configured a Microvax II with
>> MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
>> network loads without errors and I am able to SET HOST to itself butto
>> no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS showsthe
>> hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS showsa
>> designated router in my area so its finding that. If I bring a router
>> node down it successfully finds another in the area.
>>
>> The microvax node:
>>
>> Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
>>
>> Circuit = QNA-0
>>
>> State = on
>> Service = disabled
>> Designated router = 31.278
>> Cost =4
>> Router priority =64
>> Hello timer = 15
>> Type = Ethernet
>> Adjacent node =31.278
>> Listen timer = 45
>>
>> The working nodes match with the exception of the circuit. All theother
>> machines are UNA-0 (UNIBUS) and this one is of course QNA-0 Couldthis
>> be the problem?
>>
>> Brian.
>>
>>
>> _______________________________________________
>> HECnet mailing list --hecnet(a)lists.dfupdate.se
<mailto:hecnet@lists.dfupdate.se><mailto:hecnet@lists.dfupdate.se
<mailto:hecnet@lists.dfupdate.se>>
>> To unsubscribe send an email tohecnet-leave(a)lists.dfupdate.se
<mailto:hecnet-leave@lists.dfupdate.se><mailto:hecnet- leave(a)lists.dfupdate.se
<mailto:hecnet-leave@lists.dfupdate.se>>
> --
> Johnny Billquist || "I'm on a bus
> || on a psychedelic trip
> email:bqt@softjar.se <mailto:bqt@softjar.se><mailto:bqt@softjar.se
<mailto:bqt@softjar.se>> || Reading murder books
> pdp is alive! || tryin' to stay hip" - B. Idol
> _______________________________________________
> HECnet mailing list --hecnet(a)lists.dfupdate.se
<mailto:hecnet@lists.dfupdate.se><mailto:hecnet@lists.dfupdate.se
<mailto:hecnet@lists.dfupdate.se>>
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<mailto:hecnet-leave@lists.dfupdate.se><mailto:hecnet-
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> _______________________________________________
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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8:09 p.m.
I would probably guess at a problem with the actual MAC address used by
that MicroVMS system, but it's pretty hard to troubleshoot this remotely.
But it's very clear that all the other nodes are not seeing 31.282 as
up, and so any communication will be failing.
Other possible problems could be if the connection to the outside
network is actually configured differently on this instance than the
others, for example.
Trying to think of other possible problems it could be. Maybe posting
the simh config for the failing machine, as well as for one working,
could be helpful.
Johnny
On 2025-09-05 20:04, Johnny Billquist wrote:
I've seen issues sometimes, but I don't know
the full extent of what the
exact results might be.
But don't matter. Now we know they are all simh instances.
Johnny
On 2025-09-05 19:57, Paul Koning wrote:
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
I thought SQE failure is only a warning and would
not stop the device
from working.
pul
On Sep 5, 2025, at 1:27 PM, Johnny Billquist
<bqt(a)softjar.se>wrote;wrote:
That's one possibility. Another if he's running on some kind of
emulator on a system that don't actually allow programmatic change of
the MAC address, and you need to set the MAC correctly in the
emulator before starting up. And if it is real hardware, is it
connected to some switch then?10baseT? Does he have an adapter that
can do SQE?
There are many possible ways things could not work. What we can see
isjust that incoming broadcast/multicast packets work, but so far
nothing else.
Johnny
On 2025-09-05 19:22, Paul Koning wrote:
_______________________________________________
HECnet mailing list -- hecnet(a)lists.dfupdate.se
To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se Is it WiFi? That doesn't work with DECnet
MAC addresses (it doesn't
like it when the NIC changes its address to aa-00-04-00-xx-yy).
paul
> On Sep 5, 2025, at 1:14 PM, Johnny Billquist <bqt(a)softjar.se> wrote:
>
> Well, GEEZER (31.278) is not seeing 31.282 as up. So that's why you
> have a problem. This usually means that packets are working in one
> direction, but not the other.
>
> Was this a real machine? How have you connected it to the rest of
> the network?
>
> Johnny
>
> On 2025-09-05 18:45, Brian Roth wrote:
>> The address is 31.282. No File access, Phone or NCP Tell to other
>> nodes but it is still able to go out and find a router. It
>> (31.282) can phone itself and set host but other nodes it just
>> hangs. If I phone anothernode it will just sit at "Establishing
>> Decnet Link and then error to "Node is not reachable.
>> Brian.
>> On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist
>> <bqt(a)softjar.se <mailto:bqt@softjar.se>> wrote:
>> No. Qbus ethernet or Unibus ethernet makes no difference here.
>> Does anything else work? NCP to other nodes? Phone? File access?
>> What's the address of that microvax?
>> Johnny
>> On 2025-09-05 17:59, Brian Roth wrote:
>>> Hello, I currently have 8 simh vax machines on Hecnet all working
>>> fine.
>>> Its a mix of machines running VMS 3.5 to 7.3 and while some were
>>> abit
>>> of a challenge they all talk. I recently configured a Microvax II
>>> with
>>> MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31.
>>> The
>>> network loads without errors and I am able to SET HOST to itself
>>> butto
>>> no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS
>>> showsthe
>>> hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS showsa
>>> designated router in my area so its finding that. If I bring a
>>> router
>>> node down it successfully finds another in the area.
>>>
>>> The microvax node:
>>>
>>> Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
>>>
>>> Circuit = QNA-0
>>>
>>> State = on
>>> Service = disabled
>>> Designated router = 31.278
>>> Cost =4
>>> Router priority =64
>>> Hello timer = 15
>>> Type = Ethernet
>>> Adjacent node =31.278
>>> Listen timer = 45
>>>
>>> The working nodes match with the exception of the circuit. All
>>> theother
>>> machines are UNA-0 (UNIBUS) and this one is of course QNA-0
>>> Couldthis
>>> be the problem?
>>>
>>> Brian.
>>>
>>>
>>> _______________________________________________
>>> HECnet mailing list --hecnet(a)lists.dfupdate.se
>>> <mailto:hecnet@lists.dfupdate.se><mailto:hecnet@lists.dfupdate.se
>>> <mailto:hecnet@lists.dfupdate.se>>
>>> To unsubscribe send an email tohecnet-leave(a)lists.dfupdate.se
>>> <mailto:hecnet-leave@lists.dfupdate.se><mailto:hecnet-
>>> leave(a)lists.dfupdate.se <mailto:hecnet-leave@lists.dfupdate.se>>
>> --
>> Johnny Billquist || "I'm on a bus
>> || on a psychedelic trip
>> email:bqt@softjar.se <mailto:bqt@softjar.se><mailto:bqt@softjar.se
>> <mailto:bqt@softjar.se>> || Reading murder books
>> pdp is alive! || tryin' to stay hip" - B. Idol
>> _______________________________________________
>> HECnet mailing list --hecnet(a)lists.dfupdate.se
>> <mailto:hecnet@lists.dfupdate.se><mailto:hecnet@lists.dfupdate.se
>> <mailto:hecnet@lists.dfupdate.se>>
>> To unsubscribe send an email tohecnet-leave(a)lists.dfupdate.se
>> <mailto:hecnet-leave@lists.dfupdate.se><mailto:hecnet-
>> leave@lists.dfupdate.se<mailto:hecnet-leave@lists.dfupdate.se>>
>> _______________________________________________
>> HECnet mailing list -- hecnet(a)lists.dfupdate.se
>> To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se
>
> --
> Johnny Billquist || "I'm on a bus
> || on a psychedelic trip
> email: bqt(a)softjar.se || Reading murder books
> pdp is alive! || tryin' to stay hip" - B. Idol
>
> _______________________________________________
> HECnet mailing list -- hecnet(a)lists.dfupdate.se
> To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se
_______________________________________________
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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7:41 p.m.
I'm confused? Geezer is 31.279 not 278. 278 is HOWARD and it is a router on the
network. It can communicate with all other nodes and I just did a set host with IMPVAX
31.1.I shutdown Howard (278) and now the microvax (SCOOBY) shows my Pydecnet router 31.279
(geezer) as its designated router after a SHOW Circuit but still a no go.
On Friday, September 5, 2025 at 01:15:07 PM EDT, Johnny Billquist
<bqt(a)softjar.se> wrote:
Well, GEEZER (31.278) is not seeing 31.282 as up. So that's why you have
a problem. This usually means that packets are working in one direction,
but not the other.
Was this a real machine? How have you connected it to the rest of the
network?
Johnny
On 2025-09-05 18:45, Brian Roth wrote:
The address is 31.282. No File access, Phone or NCP
Tell to other nodes
but it is still able to go out and find a router. It (31.282) can phone
itself and set host but other nodes it just hangs. If I phone another
node it will just sit at "Establishing Decnet Link and then error to
"Node is not reachable.
Brian.
On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist
<bqt(a)softjar.se> wrote:
No. Qbus ethernet or Unibus ethernet makes no difference here.
Does anything else work? NCP to other nodes? Phone? File access?
What's the address of that microvax?
Johnny
On 2025-09-05 17:59, Brian Roth wrote:
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
_______________________________________________
HECnet mailing list -- hecnet(a)lists.dfupdate.se
To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se
Hello, I currently have 8 simh vax machines on
Hecnet all working fine.
Its a mix of machines running VMS 3.5 to 7.3 and while some were a bit
of a challenge they all talk. I recently configured a Microvax II with
MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
network loads without errors and I am able to SET HOST to itself butto
no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS shows the
hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS shows a
designated router in my area so its finding that. If I bring a router
node down it successfully finds another in the area.
The microvax node:
Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
Circuit = QNA-0
State = on
Service = disabled
Designated router = 31.278
Cost =4
Router priority =64
Hello timer = 15
Type = Ethernet
Adjacent node =31.278
Listen timer = 45
The working nodes match with the exception of the circuit. All the other
machines are UNA-0 (UNIBUS) and this one is of course QNA-0 Couldthis
be the problem?
Brian.
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se <mailto:bqt@softjar.se> || Reading
murder books
pdp is alive! || tryin' to stay hip" - B. Idol
_______________________________________________
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<mailto:hecnet@lists.dfupdate.se>
To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se
<mailto:hecnet-leave@lists.dfupdate.se>
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7:46 p.m.
These are all simulated machines running on raspberry pi's. I run 4 instances
(machines) on each pi. All pi's connect into a simple TPlink 8 port switch. Nothing is
on wifi.
On Friday, September 5, 2025 at 01:41:53 PM EDT, Brian Roth
<abacos_98(a)yahoo.com> wrote:
I'm confused? Geezer is 31.279 not 278. 278 is HOWARD and it is a router on the
network. It can communicate with all other nodes and I just did a set host with IMPVAX
31.1.I shutdown Howard (278) and now the microvax (SCOOBY) shows my Pydecnet router 31.279
(geezer) as its designated router after a SHOW Circuit but still a no go.
On Friday, September 5, 2025 at 01:15:07 PM EDT, Johnny Billquist
<bqt(a)softjar.se> wrote:
Well, GEEZER (31.278) is not seeing 31.282 as up. So that's why you have
a problem. This usually means that packets are working in one direction,
but not the other.
Was this a real machine? How have you connected it to the rest of the
network?
Johnny
On 2025-09-05 18:45, Brian Roth wrote:
The address is 31.282. No File access, Phone or NCP
Tell to other nodes
but it is still able to go out and find a router. It (31.282) can phone
itself and set host but other nodes it just hangs. If I phone another
node it will just sit at "Establishing Decnet Link and then error to
"Node is not reachable.
Brian.
On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist
<bqt(a)softjar.se> wrote:
No. Qbus ethernet or Unibus ethernet makes no difference here.
Does anything else work? NCP to other nodes? Phone? File access?
What's the address of that microvax?
Johnny
On 2025-09-05 17:59, Brian Roth wrote:
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
_______________________________________________
HECnet mailing list -- hecnet(a)lists.dfupdate.se
To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se
Hello, I currently have 8 simh vax machines on
Hecnet all working fine.
Its a mix of machines running VMS 3.5 to 7.3 and while some were a bit
of a challenge they all talk. I recently configured a Microvax II with
MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
network loads without errors and I am able to SET HOST to itself butto
no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS shows the
hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS shows a
designated router in my area so its finding that. If I bring a router
node down it successfully finds another in the area.
The microvax node:
Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
Circuit = QNA-0
State = on
Service = disabled
Designated router = 31.278
Cost =4
Router priority =64
Hello timer = 15
Type = Ethernet
Adjacent node =31.278
Listen timer = 45
The working nodes match with the exception of the circuit. All the other
machines are UNA-0 (UNIBUS) and this one is of course QNA-0 Couldthis
be the problem?
Brian.
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se <mailto:bqt@softjar.se> || Reading
murder books
pdp is alive! || tryin' to stay hip" - B. Idol
_______________________________________________
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7:54 p.m.
OK more poking around. SH NET:
$ sh net
VAX/VMS Network status for local node 31.282 SCOOBY on 5-SEP-1987 13:47:44.33
This is a nonrouting node, and does not have any network information.
The designated router for SCOOBY is node 0 SCOOBY.
$ mcr ncp
NCP>sh know cir
and SHOW KNOWN CIR:
$ mcr ncp
NCP>sh known cir
Known Circuit Volatile Summary as of 5-SEP-1987 13:51:49
Circuit State Loopback Adjacent
Name Routing Node
QNA-0 on 31.279 (GEEZER)
NCP>
SHOW NET has Itself as designated router.
Brian.
On Friday, September 5, 2025 at 01:46:07 PM EDT, Brian Roth
<abacos_98(a)yahoo.com> wrote:
These are all simulated machines running on raspberry pi's. I run 4 instances
(machines) on each pi. All pi's connect into a simple TPlink 8 port switch. Nothing is
on wifi.
On Friday, September 5, 2025 at 01:41:53 PM EDT, Brian Roth
<abacos_98(a)yahoo.com> wrote:
I'm confused? Geezer is 31.279 not 278. 278 is HOWARD and it is a router on the
network. It can communicate with all other nodes and I just did a set host with IMPVAX
31.1.I shutdown Howard (278) and now the microvax (SCOOBY) shows my Pydecnet router 31.279
(geezer) as its designated router after a SHOW Circuit but still a no go.
On Friday, September 5, 2025 at 01:15:07 PM EDT, Johnny Billquist
<bqt(a)softjar.se> wrote:
Well, GEEZER (31.278) is not seeing 31.282 as up. So that's why you have
a problem. This usually means that packets are working in one direction,
but not the other.
Was this a real machine? How have you connected it to the rest of the
network?
Johnny
On 2025-09-05 18:45, Brian Roth wrote:
The address is 31.282. No File access, Phone or NCP
Tell to other nodes
but it is still able to go out and find a router. It (31.282) can phone
itself and set host but other nodes it just hangs. If I phone another
node it will just sit at "Establishing Decnet Link and then error to
"Node is not reachable.
Brian.
On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist
<bqt(a)softjar.se> wrote:
No. Qbus ethernet or Unibus ethernet makes no difference here.
Does anything else work? NCP to other nodes? Phone? File access?
What's the address of that microvax?
Johnny
On 2025-09-05 17:59, Brian Roth wrote:
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
_______________________________________________
HECnet mailing list -- hecnet(a)lists.dfupdate.se
To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se
Hello, I currently have 8 simh vax machines on
Hecnet all working fine.
Its a mix of machines running VMS 3.5 to 7.3 and while some were a bit
of a challenge they all talk. I recently configured a Microvax II with
MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
network loads without errors and I am able to SET HOST to itself butto
no other nodes in my area or vice versa. SHOW KNOWN CIRCUITS shows the
hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS shows a
designated router in my area so its finding that. If I bring a router
node down it successfully finds another in the area.
The microvax node:
Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
Circuit = QNA-0
State = on
Service = disabled
Designated router = 31.278
Cost =4
Router priority =64
Hello timer = 15
Type = Ethernet
Adjacent node =31.278
Listen timer = 45
The working nodes match with the exception of the circuit. All the other
machines are UNA-0 (UNIBUS) and this one is of course QNA-0 Couldthis
be the problem?
Brian.
_______________________________________________
HECnet mailing list -- hecnet(a)lists.dfupdate.se
<mailto:hecnet@lists.dfupdate.se>
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se <mailto:bqt@softjar.se> || Reading
murder books
pdp is alive! || tryin' to stay hip" - B. Idol
_______________________________________________
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<mailto:hecnet@lists.dfupdate.se>
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8:03 p.m.
You are constantly missing that the other side (GEEZER) in this case, is
not showing 31.282 as up.
Johnny
On 2025-09-05 19:54, Brian Roth wrote:
OK more poking around. SH NET:
$ sh net
VAX/VMS Network status for local node 31.282 SCOOBY on 5-SEP-1987
13:47:44.33
This is a nonrouting node, and does not have any network information.
The designated router for SCOOBY is node 0 SCOOBY.
$ mcr ncp
NCP>sh know cir
and SHOW KNOWN CIR:
$ mcr ncp
NCP>sh known cir
Known Circuit Volatile Summary as of 5-SEP-1987 13:51:49
Circuit State Loopback Adjacent
Name Routing Node
QNA-0 on 31.279 (GEEZER)
NCP>
SHOW NET has Itself as designated router.
Brian.
On Friday, September 5, 2025 at 01:46:07 PM EDT, Brian Roth
<abacos_98(a)yahoo.com> wrote:
These are all simulated machines running on raspberry pi's. I run 4
instances (machines) on each pi. All pi's connect into a simple TPlink 8
port switch. Nothing is on wifi.
On Friday, September 5, 2025 at 01:41:53 PM EDT, Brian Roth
<abacos_98(a)yahoo.com> wrote:
I'm confused? Geezer is 31.279 not 278. 278 is HOWARD and it is a router
on the network. It can communicate with all other nodes and I just did a
set host with IMPVAX 31.1.
I shutdown Howard (278) and now the microvax (SCOOBY) shows my Pydecnet
router 31.279 (geezer) as its designated router after a SHOW Circuit but
still a no go.
On Friday, September 5, 2025 at 01:15:07 PM EDT, Johnny Billquist
<bqt(a)softjar.se> wrote:
Well, GEEZER (31.278) is not seeing 31.282 as up. So that's why you have
a problem. This usually means that packets are working in one direction,
but not the other.
Was this a real machine? How have you connected it to the rest of the
network?
Johnny
On 2025-09-05 18:45, Brian Roth wrote:
<mailto:hecnet@lists.dfupdate.se>
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
The address is 31.282. No File access, Phone or
NCP Tell to other nodes
but it is still able to go out and find a router. It (31.282) can phone
itself and set host but other nodes it just hangs. If I phone another
node it will just sit at "Establishing Decnet Link and then error to
"Node is not reachable.
Brian.
On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist
<bqt(a)softjar.se <mailto:bqt@softjar.se>> wrote:
No. Qbus ethernet or Unibus ethernet makes no difference here.
Does anything else work? NCP to other nodes? Phone? File access?
What's the address of that microvax?
Johnny
On 2025-09-05 17:59, Brian Roth wrote:
> Hello, I currently have 8 simh vax machines on Hecnet all working
fine.
> Its a mix of machines running VMS 3.5 to
7.3 and while some were a bit
> of a challenge they all talk. I recently configured a Microvax II with
> MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
> network loads without errors and I am able to SET HOST to itself butto
> no other nodes in my area or vice versa. SHOW KNOWN CIRCUITSshows the
> hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS shows a
> designated router in my area so its finding that. If I bringa router
> node down it successfully finds another in the area.
>
> The microvax node:
>
> Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
>
> Circuit = QNA-0
>
> State = on
> Service = disabled
> Designated router = 31.278
> Cost =4
> Router priority =64
> Hello timer = 15
> Type = Ethernet
> Adjacent node =31.278
> Listen timer = 45
>
> The working nodes match with the exception of the circuit. All the
other
machines
are UNA-0 (UNIBUS) and this one is of course QNA-0 Couldthis
be the problem?
Brian.
>
>
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se <mailto:bqt@softjar.se>
<mailto:bqt@softjar.se> || Reading
murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se <mailto:bqt@softjar.se> || Reading
murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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8:02 p.m.
Yeah, sorry. I wrote the wrong number.
The problem is still the same, though.
Just because your MicroVAX shows adjacency up don't mean it is so. The
other side (all of them), think that 31.282 is not up. So you only have
the circuit up from one side, which is not enough.
Johnny
On 2025-09-05 19:41, Brian Roth wrote:
I'm confused? Geezer is 31.279 not 278. 278 is
HOWARD and it is a router
on the network. It can communicate with all other nodes and I just did a
set host with IMPVAX 31.1.
I shutdown Howard (278) and now the microvax (SCOOBY) shows my Pydecnet
router 31.279 (geezer) as its designated router after a SHOW Circuit but
still a no go.
On Friday, September 5, 2025 at 01:15:07 PM EDT, Johnny Billquist
<bqt(a)softjar.se> wrote:
Well, GEEZER (31.278) is not seeing 31.282 as up. So that's why you have
a problem. This usually means that packets are working in one direction,
but not the other.
Was this a real machine? How have you connected it to the rest of the
network?
Johnny
On 2025-09-05 18:45, Brian Roth wrote:
<mailto:hecnet@lists.dfupdate.se>
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
The address is 31.282. No File access, Phone or
NCP Tell to other nodes
but it is still able to go out and find a router. It (31.282) can phone
itself and set host but other nodes it just hangs. If I phone another
node it will just sit at "Establishing Decnet Link and then error to
"Node is not reachable.
Brian.
On Friday, September 5, 2025 at 12:38:11 PM EDT, Johnny Billquist
<bqt(a)softjar.se <mailto:bqt@softjar.se>> wrote:
No. Qbus ethernet or Unibus ethernet makes no difference here.
Does anything else work? NCP to other nodes? Phone? File access?
What's the address of that microvax?
Johnny
On 2025-09-05 17:59, Brian Roth wrote:
> Hello, I currently have 8 simh vax machines on Hecnet all working
fine.
> Its a mix of machines running VMS 3.5 to
7.3 and while some were a bit
> of a challenge they all talk. I recently configured a Microvax II with
> MicroVMS 4.6 as well as Decnet 4.6 and assigned it to my area 31. The
> network loads without errors and I am able to SET HOST to itself butto
> no other nodes in my area or vice versa. SHOW KNOWN CIRCUITSshows the
> hosts I manually defined. SHOW KNOWN CIRCUITS CHARACTERISTICS shows a
> designated router in my area so its finding that. If I bringa router
> node down it successfully finds another in the area.
>
> The microvax node:
>
> Known Circuit Volatile Characteristics as of 5-SEP-1987 11:37:16
>
> Circuit = QNA-0
>
> State = on
> Service = disabled
> Designated router = 31.278
> Cost =4
> Router priority =64
> Hello timer = 15
> Type = Ethernet
> Adjacent node =31.278
> Listen timer = 45
>
> The working nodes match with the exception of the circuit. All the
other
machines
are UNA-0 (UNIBUS) and this one is of course QNA-0 Couldthis
be the problem?
Brian.
>
>
> _______________________________________________
> HECnet mailing list -- hecnet(a)lists.dfupdate.se <mailto:hecnet@lists.dfupdate.se>
> To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se
<mailto:hecnet-leave@lists.dfupdate.se>
<mailto:hecnet-leave@lists.dfupdate.se>
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se <mailto:bqt@softjar.se>
<mailto:bqt@softjar.se> || Reading
murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se <mailto:bqt@softjar.se> || Reading
murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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8:19 p.m.
On Sep 5, 2025, at 2:02 PM, Johnny Billquist
<bqt(a)softjar.se> wrote:
Yeah, sorry. I wrote the wrong number.
The problem is still the same, though.
Just because your MicroVAX shows adjacency up don't mean it is so. The other side
(all of them), think that 31.282 is not up. So you only have the circuit up from one side,
which is not enough.
Johnny
Adjacency up involves different checks depending on the node type.
If you're on an endnode, it means simply that a router hello was received (from the
designated router). It does not mean the designated router can hear you
If you're on a router, router adjacency up happens if you hear from the other router
AND that router reports you in its router adjacencies list. In other words, for that
particular case, it does tell you there is two way connectivity.
If you're on a router, endnode adjacency up means you received an endnode hello. It
does not mean the endnode can hear you.
All of the above is for Ethernet; the rules for point to point connections (DDCMP) are
different. Given how the data link layer works there should always be two way
connectivity if any DDCMP traffic gets through at all (if the circuit state is
"on" rather than "on-starting").
The assumption with Ethernet is that one way connectivity is very unusual. Ignoring
newfangled stuff like filtering switches, it only can happen if there is a strange
electrical issue with the cable. A long coax segment with a weak transceiver could give
you this behavior. Similarly, there is an assumption of transitivity: if A can talk to B
and B can talk to C then A can talk to C.
In some limited cases, especially when dealing with router to router connections, DECnet
does not fully rely on these assumptions and verifies them instead. But it does not do
that in all cases, because the issue is too unlikely to worry about in cases where the
network wouldn't utterly fail if it happened.
paul
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