Attention is currently required from: lynxis lazus, pespin. laforge has posted comments on this change by pespin. ( https://gerrit.osmocom.org/c/osmo-ggsn/+/38500?usp=email ) Change subject: doc: Document MTU features in User Manual and example config files ...................................................................... Patch Set 6: (2 comments) File doc/manuals/chapters/running.adoc: https://gerrit.osmocom.org/c/osmo-ggsn/+/38500/comment/a1314577_90067642?us… : PS5, Line 57: When running osmo-ggsn, the user must take network Maximum Transmission Unit : (MTU) into consideration, and configure it based on network specific setup. I'm not aware of any common breakage preventing transporting fragmented IP packets across networks. The only frequent problems I know about is PMTU discovery failures, which really are just ICMP filtering. https://gerrit.osmocom.org/c/osmo-ggsn/+/38500/comment/797b2ff2_0ad50b0c?us… : PS5, Line 122: OsmOGGSN "95% of the traffic will be TCP": I think that's no longer the case today. There's bittorrent, openvpn, ipsec/esp, wiregurad, RTP (for webrtc, whatever), there's QUIC, etc. - if anything I think the percentage of TCP traffic of the users on the public net is likely decreasing than increasing. I have not investigated how well those various other protocols handle MTU issues. "increasing the outer MTU" that's basically what 29.060 annex C states: (paraphrasing from memory): "When you cannot enlarge the outer MTU across the entire transport network as needed, then you should consider reducing the inner MTU to avoid fragmentation overhead" -- To view, visit https://gerrit.osmocom.org/c/osmo-ggsn/+/38500?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: osmo-ggsn Gerrit-Branch: master Gerrit-Change-Id: Ib6e974b38107fe48072380f768e1881f0fc95e80 Gerrit-Change-Number: 38500 Gerrit-PatchSet: 6 Gerrit-Owner: pespin <pespin(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: lynxis lazus <lynxis(a)fe80.eu> Gerrit-Attention: pespin <pespin(a)sysmocom.de> Gerrit-Attention: lynxis lazus <lynxis(a)fe80.eu> Gerrit-Comment-Date: Tue, 22 Oct 2024 19:01:52 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Comment-In-Reply-To: laforge <laforge(a)osmocom.org> Comment-In-Reply-To: pespin <pespin(a)sysmocom.de>