Google Engineer. Dual CCIE #38070. JNCIE-SP #2227
I’d like helpdesk to be able to enable and disable switchports without requiring them to know the underlying OS. My plan is to have a webpage with a list of devices. When you click on a device it will check the interfaces status via SNMP and display administrative and operational status of all interfaces on…
I originally started my PMTUD posts using Ubuntu 14.04. Halfway through the post I simply could not get Ubuntu to change it’s MTU on receipt of ICMP fragmentation needed messages. I then tried Debian and it worked. Windows also had no issues changing it’s MTU. Wanting to finish off the post I switched to Debian…
This is a continuation of a post I started back here. Please read it first before starting below. RFC 4821 Another workaround we can use is Packetization Layer Path MTU Discovery – RFC 4821. The RFC enables a host to mainly acts in one of two ways: Use regular PMTUD. If no acknowledgments are received…
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