int v = TPACKET_V3; err = setsockopt(fd, SOL_PACKET, PACKET_VERSION, &v, sizeof(v)); 要为RX 和 TX 设置环,TPACKET_V1 和 TPACKET_V2 使用struct tpacket_req,而 TPACKET_V3 使用struct tpacket_req3,两个结构均在 中定义uapi/linux/if_packet.h。以下代码设置了PACKET_RX_RING128 个块,...
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...
For OSPFv3, the value is 3. Type 1 byte Indicates the type of the OSPFv3 packet as below: 1: indicates Hello packets. 2: indicates DD packets. 3: indicates LSR packets. 4: indicates LSU packets. 5: indicates LSAck packets. Packet length 2 bytes Indicates the length of the OSPFv3 ...
For OSPFv3, the value is 3. Type 1 byte Indicates the type of the OSPFv3 packet as below: 1: indicates Hello packets. 2: indicates DD packets. 3: indicates LSR packets. 4: indicates LSU packets. 5: indicates LSAck packets. Packet length 2 bytes Indicates the length of the OSPFv3 ...
Support for TPACKET_V3 version ofRX/TX_RINGfor 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.
每个frame必须放在一个block中,每个block保存整数个frame,也就是说一个frame不能跨越两个block。VPP默认使用V3版本。 代码语言:javascript 代码运行次数:0 复制 Cloud Studio代码运行 下面是TPACKET_v3相关数据结构: 代码语言:javascript 代码运行次数:0 复制 ...
packet tracer OSPF packet tracer ospfv2和v3 背景信息 在此综合技能练习中,您需要重点练习 OSPFv2 和 OSPFv3 配置。 您将配置所有设备的 IP 地址。 然后您将配置用于网络 IPv4 部分的 OSPFv2 路由,以及用于网络 IPv6 部分的 OSPFv3。 一台路由器将同时使用 IPv4 和 IPv6 配置。 最后,您需要验证您的配置...
VTP v3 support is expected on Catalyst 3650 (VTP Version capable : 1 to 3 but no option to move to vtp v3 using vtp version) Private vlans and vlan-acl support is expected on IOS 15 in a future Packet Tracer release ip rip authenticationcommand is expected in a future Packet Tracer re...
TPACKET_V3 }; 用户层通过setsockopt(PACKET_RX_RING/PACKET_TX_RING)设置环形buffer参数,内核函数packet_set_ring进行处理,并对这4个字段的合法性检查,来看一下其中的要求和关联。 1)内存块大小tp_block_size必须按照页面大小对其,即必须是页面大小的整数倍;每个内存块至少要能够容纳一个数据包;另外,tp_block_...
sudo add-apt-repository ppa:gns3/ppa-v3 sudo apt install gns3-gui BGP features comparison Cisco Packet Tracer 8.2 (simulated IOS features) Packet Tracer 8.2 features only a subset of the BGP functionalities of a real Cisco ISR router. The emulated features focus on CCNA and CCNP certification...