默认host-interface接口实现 af_packet v3版本。对于 v3 版本的 af_packet (mmap) 缓存数据块,默认的最小延迟超时为1ms。AF_PACKET v3 使用块级通知机制而不是帧级。是根据超时或缓存数据块被填充满来通知应用层。VPP 中的 AF_PACKET v3 默认块大小为 64K 字节,以容纳 GSO 数据包。需要大量 ping 数据包才能...
Issue Support for TPACKET_V3 version of RX/TX_RING for AF_PACKET sockets in RHEL-7?Environment Red Hat Enterprise Linux 7 Subscriber exclusive content A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more. Current Customers and Partners Log in for full ...
AI代码解释 /* 创建TPACKET_V3环形缓冲区时对应的配置参数结构 * 备注:tpacket_req3结构是tpacket_req结构的超集,实际可以统一使用本结构去设置所有版本的环形缓冲区,V1/V2版本会自动忽略多余的字段 */struct tpacket_req3{unsigned int tp_block_size;// 每个连续内存块的最小尺寸(必须是 PAGE_SIZE * 2^n...
目前TPACKET_HEADER有三个版本,每个版本的长度略有不同,用户层可使用setsockopt(PACKET_VERSION)设置需要的版本,另外也可通过getsockopt(PACKET_HDRLEN)获取到每个版本对应的头部长度,设置环形接收buffer需要此长度值。 enumtpacket_versions{TPACKET_V1,TPACKET_V2,TPACKET_V3}; 对于版本1和2,不论接收还是发送的环形...
This is a special version of Packet Batch that utilizes AF_XDP sockets instead of AF_PACKETv3 (which is what the standard version uses). I recommend using this version over the standard version due to performance improvements, but you must keep in mind the following. AF_XDP sockets require ...
(po, &po->rx_ring, idx, TP_STATUS_KERNEL); } static bool __tpacket_v3_has_room(const struct packet_sock *po, int pow_off) { int idx, len; len = READ_ONCE(po->rx_ring.prb_bdqc.knum_blocks); idx = READ_ONCE(po->rx_ring.prb_bdqc.kactive_blk_num); if (pow_off...
所以这次就学习V3版本的用法,和其他能提示AF-PACKET抓包性能的均衡策略和方法。 二V3版本的实战 V3的版本结构每次遍历和以前的不同是按照block遍历,当然下一层再按照frame遍历。 V3的时间戳精确度到纳秒。 structtpacket_req3{unsignedinttp_block_size;// 每个连续内存块的最小尺寸(必须是 PAGE_SIZE * 2^n )...
hwOspfv3IfRxBadPacket hwOspfv3RouterId hwOspfv3IfState hwOspfv3PacketSrc hwOspfv3PacketType 从非虚连接接口收到一个不能解析的OSPFv3报文。 与MIB文件定义一致。 翻译 收藏 下载文档 更新时间:2023-10-19 文档编号:EDOC1100332862 浏览量:215156
hwOspfv3RouterId hwOspfv3IfState hwOspfv3PacketSrc hwOspfv3PacketType An hwOspfv3IfRxBadPacket notification signifies that an OSPFv3 packet that cannot be parsed has been received on a non-virtual interface. This object is implemented as defined in the corresponding MIB files.Translation...
hwOspfv3RouterId hwOspfv3IfState hwOspfv3PacketSrc hwOspfv3PacketType An hwOspfv3IfRxBadPacket notification signifies that an OSPFv3 packet that cannot be parsed has been received on a non-virtual interface. This object is implemented as defined in the corresponding MIB files.Ü...