[Lerftest-ctrls] Disregard Issue with LLRF-CPU networking
Sonya Hoobler
sonya at slac.stanford.edu
Thu Sep 13 11:59:32 EDT 2018
Hi Hugo, all,
I think there is no problem here after all.
There was a typo in the ifconfig commands that get executed on startup.
And it turns out there was a power-cycle of the CPU between tests
yesterday; consequently eth0 was not set.
So I think we're good.
Thanks everyone for youe help!
Sonya
On Wed, 12 Sep 2018, Sonya Hoobler wrote:
> Hi Hugo,
>
> Thanks for your reply.
>
>> - Is this also happening to the other CPU?
>
> I can't say for sure because we have not used that CPU as much. I will keep
> an eye out for it.
>
>> - Can you send the output of ifconfig -a before the issue and after it
>> happens?
>
> Yes, pasted below.
>
>> - Was any board added to the cpu?
>
> No.
>
> Here's the console output:
>
> # ifconfig
> eth1 Link encap:Ethernet HWaddr 74:FE:48:28:BC:6F
> inet addr:192.168.1.31 Bcast:192.168.1.255 Mask:255.255.255.0
> inet6 addr: fe80::76fe:48ff:fe28:bc6f/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:458 errors:0 dropped:0 overruns:0 frame:0
> TX packets:330 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:37974 (37.0 KiB) TX bytes:30524 (29.8 KiB)
> Memory:fbc40000-fbc5ffff
>
> eth4 Link encap:Ethernet HWaddr 74:FE:48:28:BC:73
> inet addr:129.57.244.50 Bcast:129.57.244.255 Mask:255.255.255.0
> inet6 addr: fe80::76fe:48ff:fe28:bc73/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:204696 errors:0 dropped:0 overruns:0 frame:0
> TX packets:87614 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:151125119 (144.1 MiB) TX bytes:58701018 (55.9 MiB)
> Memory:fbb00000-fbb7ffff
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> inet6 addr: ::1/128 Scope:Host
> UP LOOPBACK RUNNING MTU:65536 Metric:1
> RX packets:2565 errors:0 dropped:0 overruns:0 frame:0
> TX packets:2565 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1
> RX bytes:112828 (110.1 KiB) TX bytes:112828 (110.1 KiB)
>
> # ifconfig eth0 192.168.0.31
> [ 4317.679571] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
> # [ 4321.134743] igb 0000:06:00.0 eth0: igb: eth0 NIC Link is Up 1000 Mbps
> Full Duplex, Flow Control: RX/TX
> [ 4321.145309] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
>
> # ifconfig
> eth0 Link encap:Ethernet HWaddr 74:FE:48:28:BC:6E
> inet addr:192.168.0.31 Bcast:192.168.0.255 Mask:255.255.255.0
> inet6 addr: fe80::76fe:48ff:fe28:bc6e/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:1039 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:0 (0.0 B) TX bytes:43950 (42.9 KiB)
> Memory:fbc60000-fbc7ffff
>
> eth1 Link encap:Ethernet HWaddr 74:FE:48:28:BC:6F
> inet addr:192.168.1.31 Bcast:192.168.1.255 Mask:255.255.255.0
> inet6 addr: fe80::76fe:48ff:fe28:bc6f/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:498 errors:0 dropped:0 overruns:0 frame:0
> TX packets:355 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:41010 (40.0 KiB) TX bytes:32294 (31.5 KiB)
> Memory:fbc40000-fbc5ffff
>
> eth4 Link encap:Ethernet HWaddr 74:FE:48:28:BC:73
> inet addr:129.57.244.50 Bcast:129.57.244.255 Mask:255.255.255.0
> inet6 addr: fe80::76fe:48ff:fe28:bc73/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:221120 errors:0 dropped:0 overruns:0 frame:0
> TX packets:93130 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:163125857 (155.5 MiB) TX bytes:62840378 (59.9 MiB)
> Memory:fbb00000-fbb7ffff
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> inet6 addr: ::1/128 Scope:Host
> UP LOOPBACK RUNNING MTU:65536 Metric:1
> RX packets:3471 errors:0 dropped:0 overruns:0 frame:0
> TX packets:3471 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1
> RX bytes:188468 (184.0 KiB) TX bytes:188468 (184.0 KiB)
>
> Thanks again,
> Sonya
>
> On Wed, 12 Sep 2018, Slepicka, Hugo Henrique wrote:
>
>> Hi,
>>
>> I personally never saw this behavior.
>> Looping Ernest and Thuy too so they can also contribute on this case.
>>
>> *Larry and Sonya*:
>> - Is this also happening to the other CPU?
>> - Can you send the output of ifconfig -a before the issue and after it
>> happens?
>> - Was any board added to the cpu?
>>
>> Thank you,
>> Hugo
>>
>>
>> On 9/12/18, 1:23 PM, "Lerftest-ctrls on behalf of Sonya Hoobler"
>> <lerftest-ctrls-bounces at jlab.org on behalf of sonya at slac.stanford.edu>
>> wrote:
>>
>> Hi again,
>>
>> Larry called and repoted that the interface seemed to be down again and,
>> indeed, eth0 no longer appeared in ifconfig.
>>
>> *Larry*, do you know if anything was power-cycled or disconnected before
>> you found the problem? That info would help for our troubleshooting.
>>
>> *Hugo*, have you encountered this before? This is not the first time
>> I've
>> found eth0 missing for these systems, but since I'm remote and not fully
>> aware of what is happening locally, I have not yet tried to troubleshoot
>> it.
>>
>> Thanks everyone,
>> Sonya
>>
>>
>>
>> On Wed, 12 Sep 2018, Sonya Hoobler wrote:
>>
>> > Hi Wesley,
>> >
>> > The ifconfig eth0 was not set (which is odd but I believe I have seen
>> this
>> > before). I have set it and it should be working now.
>> >
>> > Sonya
>> >
>> >
>> > On Wed, 12 Sep 2018, Wesley Moore wrote:
>> >
>> >> Sonya,
>> >>
>> >>
>> >> Larry is seeing a comm issue from lcls-llrfcpu01 to the rack's
>> switch.
>> >> Port 1 on the cpu appears inactive/dead (pic 1). This results in the
>> >> uplink in the rack being down (pic 2). Larry moved from Port 1 to
>> another
>> >> port up and saw the uplink briefly. So it's believed that everything
>> >> downstream of cpu01 is fine. Please advise.
>> >>
>> >>
>> >> # pic 1: lcls-llrfcpu01, port 1 inactive.
>> >>
>> >> [cid:1ffd57f5-4469-41d5-885a-0ba16ff448a9]
>> >>
>> >>
>> >> # pic 2: LLRF rack switch, all lights on left are solid, uplink on
>> >> far-right is inactive.
>> >>
>> >> [cid:7cd84393-99e7-4dab-a88d-8bedc95f7115]
>> >>
>> >>
>> >> Wesley
>> >>
>> >
>> _______________________________________________
>> Mailing List: Lerftest-ctrls at jlab.org
>> https://mailman.jlab.org/mailman/listinfo/lerftest-ctrls
>> Wiki: https://wiki.jlab.org/lerf/index.php/Network
>>
>>
>
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