[vpp-dev] About lock-free operation in policer
hi all, I have a question about policer classify. The code of bind/unbind a policer with interface is: if (is_add) pcm->classify_table_index_by_sw_if_index[ti][sw_if_index] = pct[ti]; else pcm->classify_table_index_by_sw_if_index[ti][sw_if_index] = ~0; and the code checking the value in "ip4-policer-classify" node is: table_index0 = pcm->classify_table_index_by_sw_if_index[tid][sw_if_index0]; There is no lock protecting the table index. The function of policer is ok in multi-thread vpp, but I don't know why it is lock-free. Can any one help? Thanks. yonggong -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11917): https://lists.fd.io/g/vpp-dev/message/11917 Mute This Topic: https://lists.fd.io/mt/2915/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] fragment error in ip4_input.h
That makes sense. Thank you for your reply. Best regards yongong | blanks...@163.com | On 11/9/2018 17:10，Ole Troan wrote： On 9 Nov 2018, at 15:42, blankspot wrote: hi, vpp dev I am doing some fragment test using vpp 18.07. IP4 Packet with offset 8 is dropped with trace error: 00:20:04:661292: error-drop ip4-input: ip4 fragment offset == 1 I find the comment in ip4_input.h: /* Drop fragmentation offset 1 packets. */ Does someone know why? Because it’s a tiny fragment attack? Cheers Ole Best regards, yonggong | blanks...@163.com | 签名由网易邮箱大师定制 -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11183): https://lists.fd.io/g/vpp-dev/message/11183 Mute This Topic: https://lists.fd.io/mt/28046882/675193 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [otr...@employees.org] -=-=-=-=-=-=-=-=-=-=-=- -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11186): https://lists.fd.io/g/vpp-dev/message/11186 Mute This Topic: https://lists.fd.io/mt/28046882/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
[vpp-dev] fragment error in ip4_input.h
hi, vpp dev I am doing some fragment test using vpp 18.07. IP4 Packet with offset 8 is dropped with trace error: 00:20:04:661292: error-drop ip4-input: ip4 fragment offset == 1 I find the comment in ip4_input.h: /* Drop fragmentation offset 1 packets. */ Does someone know why? Best regards, yonggong | blanks...@163.com | 签名由网易邮箱大师定制-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11183): https://lists.fd.io/g/vpp-dev/message/11183 Mute This Topic: https://lists.fd.io/mt/28046882/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
回复： [vpp-dev] [vpp] VXLAN arp response packet is dropped
在2018年7月18日 16:27，Neale Ranns via Lists.Fd.Io 写道： Can I see the packet trace? /neale -Original Message- From: 井上里美 Date: Wednesday, 18 July 2018 at 09:54 To: "Neale Ranns (nranns)" , "vpp-dev@lists.fd.io" Cc: "Norimasa Asai (noasai)" , エッジ仮想化hcoML , 小柳達也様 , N転P_西岡孟朗様 Subject: [vpp] VXLAN arp response packet is dropped Hi neale san, Thank you for your reply. We used a vpp packet trace. show trace is no error but on the caputure device,ARP request packet is droped. It happend the same event even L2. Could you give me some advice? 【Architecture】 ＿＿ ｜ ｜→caputure device→IXIA(port 2) ｜VPP｜ ｜ ｜←IXIA(port 1) ｜＿＿｜ On 2018/07/06 21:39, Neale Ranns (nranns) wrote: Hi Satomi Debugging packet loss is much easier with a VPP packet trace… Regards, neale -Original Message- From: on behalf of 井上里美 Date: Friday, 6 July 2018 at 12:38 To: "vpp-dev@lists.fd.io" Cc: "Norimasa Asai (noasai)" , エッジ仮想化hcoML , 小柳達也様 , N転P_西岡孟朗様 Subject: [vpp-dev] [pw] [vpp] VXLAN arp response packet is dropped The password is here. 1j^?iKvC]C;% On 2018/07/06 19:37, 井上里美 wrote: Hi VPP Team, I'm Satomi Inoue and I belong to NTT laboratories. Could you tell me why ARP response packet is dropped? We set up vxlan while looking at ”Using_VPP_as_a_VXLAN_Tunnel_Terminator”manual. The procedure is as follows. [The result] ・ARP request packet : IXIA(port2)→VPP→IXIA(port1):OK ・ARP response packet : IXIA(port1)→VPP→IXIA(port2):NG →We checked it by trace command. Loopback interface in VPP drop the ARP response packet. [set up vxlan] 1. Create sub-interface vpp# create sub-interfaces VirtualFunctionEthernet0/9/0 1 vpp# set interface state VirtualFunctionEthernet0/9/0.1 up 2. Create bridge-domain create bridge-domain 10001 learn 1 forward 1 uu-flood 1 arp-term 0 3. Create Loopback interface vpp# loopback create mac 1a:2b:3c:4d:5e:6f vpp# set interface state loop0 up vpp# set interface ip address loop0 1.1.1.1/32 vpp# set interface ip table loop0 7 4. Apply loopback interface to bride-domain vpp# set interface l2 bridge loop0 10001 bvi 5.Apply sub-interface to bride-domain vpp# set interface l2 bridge VirtualFunctionEthernet0/9/0.1 10001 0 6.Create VXLAN tunnel vpp# create vxlan tunnel src 1.1.1.1 dst 20.10.0.1 vni 10001 encap-vrf-id 7 decap-next l2 vpp# set interface l2 bridge vxlan_tunnel0 10001 1 Regards, Satomi -- -- - 井上里美(Satomi Inoue) 〒180-8585 東京都武蔵野市緑町3-9-11 PHONE:0422-59-4151 E-MAIL:inoue.sat...@lab.ntt.co.jp -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#9863): https://lists.fd.io/g/vpp-dev/message/9863 Mute This Topic: https://lists.fd.io/mt/23669154/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
