[{"id":3678029,"web_url":"http://patchwork.ozlabs.org/comment/3678029/","msgid":"<20260416090556.2721250-1-robot@bytheb.org>","list_archive_url":null,"date":"2026-04-16T09:05:56","subject":"Re: [ovs-dev] [PATCH ovn] controller: Exclude ICMP frag-needed from\n VTEP tunnels.","submitter":{"id":74326,"url":"http://patchwork.ozlabs.org/api/people/74326/","name":"0-day Robot","email":"robot@bytheb.org"},"content":"Bleep bloop. Greetings Alexandra Rukomoinikova, I am a robot and I have tried out your patch.\nThanks for your contribution.\n\nI encountered some error that I wasn't expecting. See the details below.\n\n\ncheckpatch:\nERROR: Author Alexandra Rukomoinikova needs to sign off.\nWARNING: Unexpected sign-offs from developers who are not authors or co-authors or committers: Alexandra Rukomoinikova \nLines checked: 293, Warnings: 1, Errors: 1\n\n\nPlease check this out. If you feel there has been an error, please email aconole@redhat.com\n\nThanks,\n0-day Robot","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","dev@openvswitch.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","ovs-dev@lists.linuxfoundation.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=bytheb-org.20251104.gappssmtp.com\n header.i=@bytheb-org.20251104.gappssmtp.com header.a=rsa-sha256\n header.s=20251104 header.b=UvkKEASd;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=openvswitch.org\n (client-ip=2605:bc80:3010::137; helo=smtp4.osuosl.org;\n envelope-from=ovs-dev-bounces@openvswitch.org; receiver=patchwork.ozlabs.org)","smtp4.osuosl.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key,\n unprotected) header.d=bytheb-org.20251104.gappssmtp.com\n header.i=@bytheb-org.20251104.gappssmtp.com header.a=rsa-sha256\n header.s=20251104 header.b=UvkKEASd","smtp2.osuosl.org;\n dmarc=none (p=none dis=none) header.from=bytheb.org","smtp2.osuosl.org; 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charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"ovs-dev-bounces@openvswitch.org","Sender":"\"dev\" "}},{"id":3678839,"web_url":"http://patchwork.ozlabs.org/comment/3678839/","msgid":"","list_archive_url":null,"date":"2026-04-17T16:56:37","subject":"Re: [ovs-dev] [PATCH ovn] controller: Exclude ICMP frag-needed from\n VTEP tunnels.","submitter":{"id":73083,"url":"http://patchwork.ozlabs.org/api/people/73083/","name":"Lorenzo Bianconi","email":"lorenzo.bianconi@redhat.com"},"content":"> Commit [1] added handling for E/W ICMPv4/v6 \"fragmentation needed\"\n> packets generated for overlay tunneled traffic. This was required\n> because the GENEVE kernel module generates ICMP \"need frag\" packets\n> when a tunneled packet exceeds the path MTU, and such packets were\n> previously dropped due to metadata needing to be swapped.\n> \n> However, it did not cover the case where similar ICMP packets\n> arrive from VTEP tunnels. Such packets are not subject to the same\n> metadata handling constraints, since they are VXLAN-encapsulated and\n> are already delivered directly to the destination VIF MAC address.\n> \n> As a result, they do not match the added for such packets rules and are\n> dropped. Exclude packets coming from VTEP tunnels from this special handling.\n> \n> [1] https://github.com/ovn-org/ovn/commit/221476a01f2670cf4eb78cd9353e709cb8a16329\n> Fixes: 221476a01f26 (\"ovn: Add tunnel PMTUD support.\")\n> Signed-off-by: Alexandra Rukomoinikova \n\nHi Alexandra,\n\nI think the patch is fine, just a couple of nits inline.\n\nAcked-by: Lorenzo Bianconi \n\n> ---\n> controller/encaps.c | 29 +++++++++++-----\n> controller/local_data.c | 2 ++\n> controller/local_data.h | 1 +\n> controller/physical.c | 66 ++++++++++++++++++++++++------------\n> tests/ovn-controller-vtep.at | 4 +++\n> 5 files changed, 71 insertions(+), 31 deletions(-)\n\n[...]\n\n> /* Flow-based tunnel that consolidates multiple endpoints into a single\n> diff --git a/controller/physical.c b/controller/physical.c\n> index 228f3d171..c1401074e 100644\n> --- a/controller/physical.c\n> +++ b/controller/physical.c\n> @@ -351,31 +351,34 @@ put_flow_based_remote_port_redirect_overlay(\n> }\n> }\n> \n> +/* Add handling for E/W ICMPv4/v6 packets when tunneled packets exceed\n> + * path MTU.\n> + * If packet needs to be tunneled to another node and the physical\n> + * interface used for tunneling has a lower MTU than the packet size,\n> + * or if there is a route exception with a smaller MTU, kernel\n> + * generates an ICMP \"Fragmentation Needed\" message, but the package\n> + * metadata didn't change. Such packets might have been dropped due\n> + * to required metadata modifications for returned packet.\n> + *\n> + * Mark these packets with MLF_RX_FROM_TUNNEL_BIT for further\n> + * processing. Packets received from a VTEP tunnel should be passed\n> + * through, and errors handled via the normal processing path, since\n> + * port metadata is not carried in VTEP packets in VNI.\n> + */\n> static void\n> -add_tunnel_ingress_flows(const struct chassis_tunnel *tun,\n> - enum mf_field_id mff_ovn_geneve,\n> - struct ovn_desired_flow_table *flow_table,\n> - struct ofpbuf *ofpacts)\n> +add_tunnel_ingress_icmp_need_frag_flows(const struct chassis_tunnel *tun,\n> + struct ofpbuf *ofpacts,\n> + struct ovn_desired_flow_table *table)\n\nI guess if you keep the name flow_table here, the patch is easier to read.\n\n> {\n> - /* Main ingress flow (priority 100) */\n> - struct match match = MATCH_CATCHALL_INITIALIZER;\n> - match_set_in_port(&match, tun->ofport);\n> -\n> - ofpbuf_clear(ofpacts);\n> - put_decapsulation(mff_ovn_geneve, tun, ofpacts);\n> - put_resubmit(OFTABLE_LOCAL_OUTPUT, ofpacts);\n> + if (tun->is_vtep_tunnel) {\n> + return;\n> + }\n> \n> - ofctrl_add_flow(flow_table, OFTABLE_PHY_TO_LOG, 100, 0, &match,\n> - ofpacts, hc_uuid);\n> + struct match match = MATCH_CATCHALL_INITIALIZER;\n> \n> - /* Set allow rx from tunnel bit */\n\nWhy are you removing this comment?\n\n> put_load(1, MFF_LOG_FLAGS, MLF_RX_FROM_TUNNEL_BIT, 1, ofpacts);\n> put_resubmit(OFTABLE_CT_ZONE_LOOKUP, ofpacts);\n> \n> - /* Add specific flows for E/W ICMPv{4,6} packets if tunnelled packets\n> - * do not fit path MTU. */\n> -\n> - /* IPv4 ICMP flow (priority 120) */\n\nsame here.\n\n> match_init_catchall(&match);\n> match_set_in_port(&match, tun->ofport);\n> match_set_dl_type(&match, htons(ETH_TYPE_IP));\n> @@ -383,10 +386,9 @@ add_tunnel_ingress_flows(const struct chassis_tunnel *tun,\n> match_set_icmp_type(&match, 3);\n> match_set_icmp_code(&match, 4);\n> \n> - ofctrl_add_flow(flow_table, OFTABLE_PHY_TO_LOG, 120, 0, &match,\n> + ofctrl_add_flow(table, OFTABLE_PHY_TO_LOG, 120, 0, &match,\n> ofpacts, hc_uuid);\n> \n> - /* IPv6 ICMP flow (priority 120) */\n> match_init_catchall(&match);\n> match_set_in_port(&match, tun->ofport);\n> match_set_dl_type(&match, htons(ETH_TYPE_IPV6));\n> @@ -394,10 +396,30 @@ add_tunnel_ingress_flows(const struct chassis_tunnel *tun,\n> match_set_icmp_type(&match, 2);\n> match_set_icmp_code(&match, 0);\n> \n> - ofctrl_add_flow(flow_table, OFTABLE_PHY_TO_LOG, 120, 0, &match,\n> + ofctrl_add_flow(table, OFTABLE_PHY_TO_LOG, 120, 0, &match,\n> ofpacts, hc_uuid);\n> }\n> \n> +static void\n> +add_tunnel_ingress_flows(const struct chassis_tunnel *tun,\n> + enum mf_field_id mff_ovn_geneve,\n> + struct ovn_desired_flow_table *flow_table,\n> + struct ofpbuf *ofpacts)\n> +{\n> + /* Main ingress flow (priority 100) */\n> + struct match match = MATCH_CATCHALL_INITIALIZER;\n> + match_set_in_port(&match, tun->ofport);\n> +\n> + ofpbuf_clear(ofpacts);\n> + put_decapsulation(mff_ovn_geneve, tun, ofpacts);\n> + put_resubmit(OFTABLE_LOCAL_OUTPUT, ofpacts);\n> +\n> + ofctrl_add_flow(flow_table, OFTABLE_PHY_TO_LOG, 100, 0, &match,\n> + ofpacts, hc_uuid);\n> +\n> + add_tunnel_ingress_icmp_need_frag_flows(tun, ofpacts, flow_table);\n> +}\n> +\n> static void\n> put_stack(enum mf_field_id field, struct ofpact_stack *stack)\n> {\n> @@ -3943,7 +3965,7 @@ physical_run(struct physical_ctx *p_ctx,\n> struct chassis_tunnel *tun;\n> HMAP_FOR_EACH (tun, hmap_node, p_ctx->chassis_tunnels) {\n> add_tunnel_ingress_flows(tun, p_ctx->mff_ovn_geneve, flow_table,\n> - &ofpacts);\n> + &ofpacts);\n> }\n> \n> /* Process packets that arrive from flow-based tunnels. */\n> diff --git a/tests/ovn-controller-vtep.at b/tests/ovn-controller-vtep.at\n> index 961324bd2..caf53e291 100644\n> --- a/tests/ovn-controller-vtep.at\n> +++ b/tests/ovn-controller-vtep.at\n> @@ -775,6 +775,10 @@ AT_CHECK([ovs-ofctl dump-flows br-int table=OFTABLE_PHY_TO_LOG | grep 'priority=\n> priority=110,tun_id=0x<>,in_port=<> actions=move:NXM_NX_TUN_ID[[0..23]]->OXM_OF_METADATA[[0..23]],load:0x<>->NXM_NX_REG14[[0..14]],load:0x<>->NXM_NX_REG10[[1]],resubmit(,OFTABLE_LOG_INGRESS_PIPELINE)\n> ])\n> \n> +# Skip processing ICMP \"packet too big\" errors in this table if the packet came from a VTEP tunnel.\n> +AT_CHECK([ovs-ofctl dump-flows br-int table=OFTABLE_PHY_TO_LOG | \\\n> + grep -E 'icmp_type=3,icmp_code=4|icmp_type=2,icmp_code=0'], [1], [])\n> +\n> OVN_CONTROLLER_VTEP_STOP([], vtep1)\n> OVN_CLEANUP([hv1])\n> AT_CLEANUP\n> -- \n> 2.48.1\n> \n> _______________________________________________\n> dev mailing list\n> dev@openvswitch.org\n> https://mail.openvswitch.org/mailman/listinfo/ovs-dev\n>","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","dev@openvswitch.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","ovs-dev@lists.linuxfoundation.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n 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tunnels.","X-BeenThere":"ovs-dev@openvswitch.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","From":"Lorenzo Bianconi via dev ","Reply-To":"Lorenzo Bianconi ","Content-Type":"multipart/mixed; boundary=\"===============8206915606767646235==\"","Errors-To":"ovs-dev-bounces@openvswitch.org","Sender":"\"dev\" "}},{"id":3678844,"web_url":"http://patchwork.ozlabs.org/comment/3678844/","msgid":"<0c0acc1c-9a44-4c38-9f01-becb1b2b403c@k2.cloud>","list_archive_url":null,"date":"2026-04-17T17:23:13","subject":"Re: [ovs-dev] [PATCH ovn] controller: Exclude ICMP frag-needed from\n VTEP tunnels.","submitter":{"id":89461,"url":"http://patchwork.ozlabs.org/api/people/89461/","name":"Rukomoinikova Aleksandra","email":"ARukomoinikova@k2.cloud"},"content":"On 17.04.2026 19:56, Lorenzo Bianconi wrote:\n>> Commit [1] added handling for E/W ICMPv4/v6 \"fragmentation needed\"\n>> packets generated for overlay tunneled traffic. This was required\n>> because the GENEVE kernel module generates ICMP \"need frag\" packets\n>> when a tunneled packet exceeds the path MTU, and such packets were\n>> previously dropped due to metadata needing to be swapped.\n>>\n>> However, it did not cover the case where similar ICMP packets\n>> arrive from VTEP tunnels. Such packets are not subject to the same\n>> metadata handling constraints, since they are VXLAN-encapsulated and\n>> are already delivered directly to the destination VIF MAC address.\n>>\n>> As a result, they do not match the added for such packets rules and are\n>> dropped. Exclude packets coming from VTEP tunnels from this special handling.\n>>\n>> [1] https://github.com/ovn-org/ovn/commit/221476a01f2670cf4eb78cd9353e709cb8a16329\n>> Fixes: 221476a01f26 (\"ovn: Add tunnel PMTUD support.\")\n>> Signed-off-by: Alexandra Rukomoinikova \n> Hi Alexandra,\n>\n> I think the patch is fine, just a couple of nits inline.\n>\n> Acked-by: Lorenzo Bianconi \nHi Lorenzo!  Thanks for the review, I will answer below\n>\n>> ---\n>> controller/encaps.c | 29 +++++++++++-----\n>> controller/local_data.c | 2 ++\n>> controller/local_data.h | 1 +\n>> controller/physical.c | 66 ++++++++++++++++++++++++------------\n>> tests/ovn-controller-vtep.at | 4 +++\n>> 5 files changed, 71 insertions(+), 31 deletions(-)\n> [...]\n>\n>> /* Flow-based tunnel that consolidates multiple endpoints into a single\n>> diff --git a/controller/physical.c b/controller/physical.c\n>> index 228f3d171..c1401074e 100644\n>> --- a/controller/physical.c\n>> +++ b/controller/physical.c\n>> @@ -351,31 +351,34 @@ put_flow_based_remote_port_redirect_overlay(\n>> }\n>> }\n>> \n>> +/* Add handling for E/W ICMPv4/v6 packets when tunneled packets exceed\n>> + * path MTU.\n>> + * If packet needs to be tunneled to another node and the physical\n>> + * interface used for tunneling has a lower MTU than the packet size,\n>> + * or if there is a route exception with a smaller MTU, kernel\n>> + * generates an ICMP \"Fragmentation Needed\" message, but the package\n>> + * metadata didn't change. Such packets might have been dropped due\n>> + * to required metadata modifications for returned packet.\n>> + *\n>> + * Mark these packets with MLF_RX_FROM_TUNNEL_BIT for further\n>> + * processing. Packets received from a VTEP tunnel should be passed\n>> + * through, and errors handled via the normal processing path, since\n>> + * port metadata is not carried in VTEP packets in VNI.\n>> + */\n>> static void\n>> -add_tunnel_ingress_flows(const struct chassis_tunnel *tun,\n>> - enum mf_field_id mff_ovn_geneve,\n>> - struct ovn_desired_flow_table *flow_table,\n>> - struct ofpbuf *ofpacts)\n>> +add_tunnel_ingress_icmp_need_frag_flows(const struct chassis_tunnel *tun,\n>> + struct ofpbuf *ofpacts,\n>> + struct ovn_desired_flow_table *table)\n> I guess if you keep the name flow_table here, the patch is easier to read.\nack\n>\n>> {\n>> - /* Main ingress flow (priority 100) */\n>> - struct match match = MATCH_CATCHALL_INITIALIZER;\n>> - match_set_in_port(&match, tun->ofport);\n>> -\n>> - ofpbuf_clear(ofpacts);\n>> - put_decapsulation(mff_ovn_geneve, tun, ofpacts);\n>> - put_resubmit(OFTABLE_LOCAL_OUTPUT, ofpacts);\n>> + if (tun->is_vtep_tunnel) {\n>> + return;\n>> + }\n>> \n>> - ofctrl_add_flow(flow_table, OFTABLE_PHY_TO_LOG, 100, 0, &match,\n>> - ofpacts, hc_uuid);\n>> + struct match match = MATCH_CATCHALL_INITIALIZER;\n>> \n>> - /* Set allow rx from tunnel bit */\n> Why are you removing this comment?\nHonestly, I don't think these comments provide any useful information. \nfunctions below clearly show priority, packet code types, and the \nprotocol — so I removed them. I wrote about installed register in the \ndoc string above. If you think they should be restored, I will.\n>\n>> put_load(1, MFF_LOG_FLAGS, MLF_RX_FROM_TUNNEL_BIT, 1, ofpacts);\n>> put_resubmit(OFTABLE_CT_ZONE_LOOKUP, ofpacts);\n>> \n>> - /* Add specific flows for E/W ICMPv{4,6} packets if tunnelled packets\n>> - * do not fit path MTU. */\n>> -\n>> - /* IPv4 ICMP flow (priority 120) */\n> same here.\n>\n>> match_init_catchall(&match);\n>> match_set_in_port(&match, tun->ofport);\n>> match_set_dl_type(&match, htons(ETH_TYPE_IP));\n>> @@ -383,10 +386,9 @@ add_tunnel_ingress_flows(const struct chassis_tunnel *tun,\n>> match_set_icmp_type(&match, 3);\n>> match_set_icmp_code(&match, 4);\n>> \n>> - ofctrl_add_flow(flow_table, OFTABLE_PHY_TO_LOG, 120, 0, &match,\n>> + ofctrl_add_flow(table, OFTABLE_PHY_TO_LOG, 120, 0, &match,\n>> ofpacts, hc_uuid);\n>> \n>> - /* IPv6 ICMP flow (priority 120) */\n>> match_init_catchall(&match);\n>> match_set_in_port(&match, tun->ofport);\n>> match_set_dl_type(&match, htons(ETH_TYPE_IPV6));\n>> @@ -394,10 +396,30 @@ add_tunnel_ingress_flows(const struct chassis_tunnel *tun,\n>> match_set_icmp_type(&match, 2);\n>> match_set_icmp_code(&match, 0);\n>> \n>> - ofctrl_add_flow(flow_table, OFTABLE_PHY_TO_LOG, 120, 0, &match,\n>> + ofctrl_add_flow(table, OFTABLE_PHY_TO_LOG, 120, 0, &match,\n>> ofpacts, hc_uuid);\n>> }\n>> \n>> +static void\n>> +add_tunnel_ingress_flows(const struct chassis_tunnel *tun,\n>> + enum mf_field_id mff_ovn_geneve,\n>> + struct ovn_desired_flow_table *flow_table,\n>> + struct ofpbuf *ofpacts)\n>> +{\n>> + /* Main ingress flow (priority 100) */\n>> + struct match match = MATCH_CATCHALL_INITIALIZER;\n>> + match_set_in_port(&match, tun->ofport);\n>> +\n>> + ofpbuf_clear(ofpacts);\n>> + put_decapsulation(mff_ovn_geneve, tun, ofpacts);\n>> + put_resubmit(OFTABLE_LOCAL_OUTPUT, ofpacts);\n>> +\n>> + ofctrl_add_flow(flow_table, OFTABLE_PHY_TO_LOG, 100, 0, &match,\n>> + ofpacts, hc_uuid);\n>> +\n>> + add_tunnel_ingress_icmp_need_frag_flows(tun, ofpacts, flow_table);\n>> +}\n>> +\n>> static void\n>> put_stack(enum mf_field_id field, struct ofpact_stack *stack)\n>> {\n>> @@ -3943,7 +3965,7 @@ physical_run(struct physical_ctx *p_ctx,\n>> struct chassis_tunnel *tun;\n>> HMAP_FOR_EACH (tun, hmap_node, p_ctx->chassis_tunnels) {\n>> add_tunnel_ingress_flows(tun, p_ctx->mff_ovn_geneve, flow_table,\n>> - &ofpacts);\n>> + &ofpacts);\n>> }\n>> \n>> /* Process packets that arrive from flow-based tunnels. */\n>> diff --git a/tests/ovn-controller-vtep.at b/tests/ovn-controller-vtep.at\n>> index 961324bd2..caf53e291 100644\n>> --- a/tests/ovn-controller-vtep.at\n>> +++ b/tests/ovn-controller-vtep.at\n>> @@ -775,6 +775,10 @@ AT_CHECK([ovs-ofctl dump-flows br-int table=OFTABLE_PHY_TO_LOG | grep 'priority=\n>> priority=110,tun_id=0x<>,in_port=<> actions=move:NXM_NX_TUN_ID[[0..23]]->OXM_OF_METADATA[[0..23]],load:0x<>->NXM_NX_REG14[[0..14]],load:0x<>->NXM_NX_REG10[[1]],resubmit(,OFTABLE_LOG_INGRESS_PIPELINE)\n>> ])\n>> \n>> +# Skip processing ICMP \"packet too big\" errors in this table if the packet came from a VTEP tunnel.\n>> +AT_CHECK([ovs-ofctl dump-flows br-int table=OFTABLE_PHY_TO_LOG | \\\n>> + grep -E 'icmp_type=3,icmp_code=4|icmp_type=2,icmp_code=0'], [1], [])\n>> +\n>> OVN_CONTROLLER_VTEP_STOP([], vtep1)\n>> OVN_CLEANUP([hv1])\n>> AT_CLEANUP\n>> -- \n>> 2.48.1\n>>\n>> _______________________________________________\n>> dev mailing list\n>> dev@openvswitch.org\n>> https://mail.openvswitch.org/mailman/listinfo/ovs-dev\n>>","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","dev@openvswitch.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","ovs-dev@lists.linuxfoundation.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=k2.cloud header.i=@k2.cloud header.a=rsa-sha256\n header.s=mail header.b=eNFzz7Y4;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=openvswitch.org\n (client-ip=2605:bc80:3010::136; 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s=mail;\n t=1776446594; bh=aHB1vCUWa5OQZckdwetKNzQkOk78P/Em9Ne31qyXi+U=;\n h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version:From;\n b=eNFzz7Y4jEMV2mP2Aqzr9GEmTSJErJN9rq+nCT/aReP34dl7H8hjSRQKYf7oF4kyV\n FGAW/qKc7kdY5LZuXaoVofWsBspkEJmP1ZHO77bTRFWwd+1/QQwnwX0K5r3zyI7RM2\n bIILMnzSVTNzDyGWmsZ/z0cL8E1OMlW1g9hbusmTZVAqy/FTyec8ug+0B/tkbTmc0M\n G8irF4dUyMYf+vXArv2ezSRpnJAEWCDENIfOdGMfuVGu8MSsid3CXGJzl8GwEg0U3A\n k68zucCrFvwacfq85UcdU43oe1n3TUy5+pmofY4zyvuVEatjLQ9zmPR0Q1p8ZAnk4o\n qLUMVAMKYVnzA==","To":"Lorenzo Bianconi , Rukomoinikova Aleksandra\n ","CC":"\"dev@openvswitch.org\" ","Thread-Topic":"[ovs-dev] [PATCH ovn] controller: Exclude ICMP frag-needed from\n VTEP tunnels.","Thread-Index":"AQHczX7zWc4GjClJJ0mXemi7Hxx46LXjSQaAgAAHboA=","Date":"Fri, 17 Apr 2026 17:23:13 +0000","Message-ID":"<0c0acc1c-9a44-4c38-9f01-becb1b2b403c@k2.cloud>","References":"<20260416085643.32847-1-arukomoinikova@k2.cloud>\n ","In-Reply-To":"","Accept-Language":"en-US","Content-Language":"en-US","X-MS-Has-Attach":"","X-MS-TNEF-Correlator":"","dlp-except":"1","Content-ID":"<0D42AFAA1DFA5F4F8E916EBAA26A4AD1@croc.ru>","MIME-Version":"1.0","X-SEG-SpamProfiler-Score":"-1","X-KSMG-Rule-ID":"4","X-KSMG-Message-Action":"skipped","X-KSMG-AntiSpam-Status":"not scanned, allowlist","X-KSMG-AntiPhishing":"not scanned, allowlist","X-KSMG-LinksScanning":"not scanned, allowlist","X-KSMG-AntiVirus":"Kaspersky Secure Mail Gateway, version 2.0.1.6960,\n not scanned, allowlist","Subject":"Re: [ovs-dev] [PATCH ovn] controller: Exclude ICMP frag-needed from\n VTEP tunnels.","X-BeenThere":"ovs-dev@openvswitch.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","From":"Rukomoinikova Aleksandra via dev ","Reply-To":"Rukomoinikova Aleksandra ","Content-Type":"text/plain; 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