Bug 278790
| Summary: | Hosting Misconfiguration on webkit.org | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Daniel Smith <zamadatix> |
| Component: | WebKit Website | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW | ||
| Severity: | Normal | CC: | jond, webkit-bug-importer |
| Priority: | P2 | Keywords: | InRadar |
| Version: | Safari 18 | ||
| Hardware: | All | ||
| OS: | All | ||
Daniel Smith
Hello all,
webkit.org and associated sites on the same hosting (e.g. browserbench.org) have a dual part configuration resulting in connectivity issues for some clients configured in a similar manner. The first component is the webserver infrastructure is configured with jumbo frames (i.e. an MTU greater than the standard 1500) on the order of ~8500 bytes causing a TCP MSS of 8373 to be sent back. The second component is the infrastructure filters ICMP. The net result is PMTUD is made unreliable, the connection (with a client also with jumbo frames) can be signalled to use >1500 byte frames, and the connection opens (TCP opening uses small packets which fit under a single 1500 byte packet) but hangs whenever actual page data starts to be sent.
In general, the easiest way is to internet clamped to 1500 but I'm sure your infrastructure/network folks know the full gamut of options to resolve this so I'll leave the report at this for now :).
Thank you,
Daniel Smith
| Attachments | ||
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Radar WebKit Bug Importer
<rdar://problem/134859131>