IS-IS Error (FRR)
mark.tinka at seacom.mu
Mon Apr 20 14:34:02 UTC 2020
On 20/Apr/20 16:26, adamv0025 at netconsultings.com wrote:
> Interesting, so it is an MTU problem after all, I take it there’s no
> way to adjust the BPF (Berkeley Packet Filter) limit to let the 6020B
> sized PSNPs through?
Probably could - but I'd prefer solutions that don't mess with the base
system, which ensures long term usability of FRR across future upgrades.
The BPF man page has an interesting bug note:
The read buffer must be of a fixed size (returned by the BIOCGBLEN
A file that does not request promiscuous mode may receive promiscuously
received packets as a side effect of another file requesting this
the same hardware interface. This could be fixed in the kernel with ad-
ditional processing overhead. However, we favor the model where all
files must assume that the interface is promiscuous, and if so desired,
must utilize a filter to reject foreign packets.
Data link protocols with variable length headers are not currently sup-
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