Questions tagged [errors]
For questions about interface errors on a network device. For instance, you have an interface with a lot of input errors, but you don't know how to troubleshoot it.
35 questions
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RODR offset overflow count incremented_juniper_when fpc restarts
got this:
Jan 28 10:48:20.050 2010 Router_A fpc3 NFAB(3/1): %PFE-3: RODR offset overflow count incremented (1)
Jan 28 10:48:20.050 2010 Router_A fpc3 CMALARM: %PFE-3: Error (code: 542, type:Minor) ...
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Troubleshooting network issues; General inquiry
I work as a junior network admin at an ISP and I would like your help in resolving an issue whose cause is not readily apparent. Rn I am trying to troubleshoot a case where a switch interface randomly ...
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In determining the Hamming distance, how does one know what the list of valid codewords are?
Hamming distance is said to be the number of bits that differ between two codewords. If two code words differ by a distance of d, then up to d-1 bit flips can be detected.
The example given for such ...
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Why I’m getting overlaps with fast Ethernet 0/1 when assigning an ip
But I have been receiving error code when I want to assist an ip to s1/0
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panic:integer divide fault Message Observed on SRX 5800 Routine Engine
We are running 2 x Juniper SRX 5800 Firewalls in a cluster environment. Node 0 got rebooted and Node 1 took over the master role. Node 0 came back online after reboot. The reasons for Node 0 to reboot ...
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Cannot create subinterface
I'm trying to connect 4 networks with 1 router, i created 2 sub-interfaces in the router, when i tried to create the 3rd sub-interface i got this output "%Cannot create sub-interface", this ...
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CRC errors in DC, ruled out L1 issues
I have a very strange problem with links in one datacenter and I'm looking for some other solutions I haven't looked for yet. We have a network based on Cisco Nexus 3K and most of the core links ...
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How does the Ethernet handles start of frame collision?
The Ethernet preamble, 56 bits of alternating 1 and 0 bits, allowing the receiver to synchronize its clock to the transmitter, followed by a one-octet start frame delimiter byte (10101011) and then ...
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Cisco nexus CRC error on interface
I have dual stack vPC setup between 4 cisco nexus switch as per above design. I have noticed recently that getting CRC error on cisco 3064 all 4 interface connected to N9K, and during peak traffic ...
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JunOS: FPC Major error alarm
I hope everyone is doing fine!
This morning I've run into a problem. My uplink interface went down for unknown reasons.
Upon checking system alarms I see this:
show system alarms
1 alarms currently ...
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Cisco Time-Domain Reflectometer (TDR) returns cable length of 65535 meters?
Something very strange here. Today I noticed a device was unreachable. Giving a look at the switch it connects to (Cisco 3750, version 12.2(35)SE5), the port was in err-disabled due to link-flap:
#sh ...
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CRC R bit size to guarantee error free
For a Link Layer frame, it's common to include some bits for redundancy. Suppose we have a frame
with X bits of actual data, and want Y bits of error-correction bits.
What size do we need to choose ...
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What is wrong with this CRC calculation? [duplicate]
I have gone through a few documents to understand how to check that an ethernet frame is valid. I do the following calculation, but I can see it is incorrect because it does not result in a crc value ...
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Resource Errors on 1G interfaces in Juniper router
We are observing resource errors on almost many 1G links on Juniper MX240. The resource errors counter is quite high. The MPC type is MPC Type 1 3D. I am sharing the output of command 'show interface ...
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Intermittent issues on a dark fibre point to point link
After a bit of advice on an intermittent issue i'm investigating.
We have two buildings on the same site connected by 548m fibre run that we own and it was installed around 10 years ago. Over the ...
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