probe offline/lock up
I had an interesting alert yesterday, as my probe 54858 said it was offline. I was unable to ping it from the router port it's directly connected to, but did some some traffic on the port via the counters. There was a fresh ARP entry as well. I power cycled it and it came back online. I was then able to ping it via v4 after it DHCP'd it's address. v6 pings were working to it's SLAAC address too. It has not gone offline now, but I am noticing pings on v4 are not working at all again. v6 seems unaffected. Is this normal or is there a problem with my probe? I've never really taken this close of a look before, I'm unsure if it has an issue or if this is normal. Thanks, -- Bryan Fields 727-409-1194 - Voice http://bryanfields.net
On 2020/07/05 19:55 , Bryan Fields wrote:
Is this normal or is there a problem with my probe? I've never really taken this close of a look before, I'm unsure if it has an issue or if this is normal.
Do you see any ARP request coming from the probe? It seems that the probe cannot reach it's default router on IPv4. Philip
On 7/6/20 6:00 AM, Philip Homburg wrote:
On 2020/07/05 19:55 , Bryan Fields wrote:
Is this normal or is there a problem with my probe? I've never really taken this close of a look before, I'm unsure if it has an issue or if this is normal.
Do you see any ARP request coming from the probe? It seems that the probe cannot reach it's default router on IPv4.
Yes, it responds sometimes on v4, and always on v6. I'm at a loss to understand it. v4:
bfields@colo> ping 199.47.174.226 interface vlan.200 source 199.47.174.225 PING 199.47.174.226 (199.47.174.226): 56 data bytes 64 bytes from 199.47.174.226: icmp_seq=4 ttl=64 time=1.629 ms 64 bytes from 199.47.174.226: icmp_seq=35 ttl=64 time=1.622 ms 64 bytes from 199.47.174.226: icmp_seq=43 ttl=64 time=1.562 ms 64 bytes from 199.47.174.226: icmp_seq=51 ttl=64 time=1.728 ms 64 bytes from 199.47.174.226: icmp_seq=55 ttl=64 time=2.327 ms ^C --- 199.47.174.226 ping statistics --- 60 packets transmitted, 5 packets received, 91% packet loss round-trip min/avg/max/stddev = 1.562/1.774/2.327/0.282 ms
v6:
ping 2605:900::1:9fff:fe04:f4a3 PING6(56=40+8+8 bytes) 2605:900::1 --> 2605:900::1:9fff:fe04:f4a3 16 bytes from 2605:900::1:9fff:fe04:f4a3, icmp_seq=0 hlim=64 time=3.098 ms 16 bytes from 2605:900::1:9fff:fe04:f4a3, icmp_seq=1 hlim=64 time=6.471 ms 16 bytes from 2605:900::1:9fff:fe04:f4a3, icmp_seq=2 hlim=64 time=2.898 ms 16 bytes from 2605:900::1:9fff:fe04:f4a3, icmp_seq=3 hlim=64 time=1.367 ms 16 bytes from 2605:900::1:9fff:fe04:f4a3, icmp_seq=4 hlim=64 time=1.320 ms 16 bytes from 2605:900::1:9fff:fe04:f4a3, icmp_seq=5 hlim=64 time=1.864 ms 16 bytes from 2605:900::1:9fff:fe04:f4a3, icmp_seq=6 hlim=64 time=1.415 ms 16 bytes from 2605:900::1:9fff:fe04:f4a3, icmp_seq=7 hlim=64 time=2.624 ms 16 bytes from 2605:900::1:9fff:fe04:f4a3, icmp_seq=8 hlim=64 time=2.308 ms 16 bytes from 2605:900::1:9fff:fe04:f4a3, icmp_seq=9 hlim=64 time=2.577 ms 16 bytes from 2605:900::1:9fff:fe04:f4a3, icmp_seq=10 hlim=64 time=2.605 ms 16 bytes from 2605:900::1:9fff:fe04:f4a3, icmp_seq=11 hlim=64 time=2.855 ms ^C --- 2605:900::1:9fff:fe04:f4a3 ping6 statistics --- 12 packets transmitted, 12 packets received, 0% packet loss round-trip min/avg/max/std-dev = 1.320/2.617/6.471/1.309 ms ARP: bfields@colo> show arp no-resolve |match 199.47.174.226 02:01:9f:04:f4:a3 199.47.174.226 vlan.200 none
MAC Table:
show ethernet-switching table interface ge-0/0/6.0 Ethernet-switching table: 1 unicast entries VLAN MAC address Type Age Interfaces Atlas-Probe * Flood - All-members Atlas-Probe 02:01:9f:04:f4:a3 Learn 0 ge-0/0/6.0
Interface:
show interfaces ge-0/0/6 Physical interface: ge-0/0/6, Enabled, Physical link is Up Interface index: 136, SNMP ifIndex: 514 Description: Server: Atlas Probe [1Mbit] (RIPE) Link-level type: Ethernet, MTU: 1514, LAN-PHY mode, Speed: Auto, Duplex: Auto, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Flow control: Enabled, Auto-negotiation: Enabled, Remote fault: Online, Media type: Copper Device flags : Present Running Interface flags: SNMP-Traps Internal: 0x0 Link flags : None CoS queues : 8 supported, 8 maximum usable queues Current address: 78:19:f7:82:a1:09, Hardware address: 78:19:f7:82:a1:09 Last flapped : 2020-07-04 11:42:33 EDT (1d 23:43 ago) Input rate : 4160 bps (6 pps) Output rate : 1296 bps (2 pps) Active alarms : None Active defects : None Interface transmit statistics: Disabled
Logical interface ge-0/0/6.0 (Index 78) (SNMP ifIndex 515) Flags: Up SNMP-Traps Redundancy-Device 0x0 Encapsulation: ENET2 Input packets : 7039008 Output packets: 32913928 Protocol eth-switch Flags: None
-- Bryan Fields 727-409-1194 - Voice http://bryanfields.net
participants (2)
-
Bryan Fields -
Philip Homburg