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Topic: Jumbo Frames crash JNIOR
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Marcel Birgelen
Film God
Posts: 3357
From: Maastricht, Limburg, Netherlands
Registered: Feb 2012
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posted 11-04-2018 06:48 PM
Jumbo Frames make sense where large chunks of data are being transferred. So, you can see them on the networks or VLANs between TMSes and Screen Servers, like Leo mentioned, but also often on "storage networks", e.g. the networks that connect servers to storage backends like NASes and IP-based SANs (especially iSCSI).
Many modern switches allow jumbo frames to be enabled on a VLAN and/or port-basis. So, some switches effectively allow you to block jumbo frames from ever reaching a device behind a specific port, by simply dropping those frames.
In the past, it was also pretty usual to have to enable the Jumbo Frames support on switches, but more modern switches tend to enable the support by default.
Please remember that Jumbo Frames arriving at your port may not be faulty frame switching, but it could also be broadcast packets with a very large MTU on a broadcast domain that supports large MTUs and jumbo frames.
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