Ethernet OAM Frame Format ERPS (G.8032) Frame GVRP Frame LLDP Frame IS-IS MPLS Layer Network Layer Transport Layer Application Layer VLAN Frame Format The IEEE 802.1Q standard modifies the Ethernet frame format. It adds a 4-byte 802.1Q tag between the source MAC address and the protocol type...
frame: 0.000000000 seconds] Frame Number: 1 Frame Length: 114 bytes (912 bits) Capture Length: 114 bytes (912 bits) [Frame is marked: False] [Frame is ignored: False] [Protocols in frame: eth:ip:udp:ptp] [Coloring Rule Name: UDP] [Coloring Rule String: udp] Ethernet II (VLAN ...
IEEE 802.1Q是虚拟桥接局域网的正式标准,对Ethernet帧格式进行了修改,在源MAC地址字段和协议类型字段之间加入4字节的802.1Q Tag,如下图2所示。 图2 802.1Q帧格式 802.1Q Tag包含4个字段,各字段解释如下所示: 1、TPID 长度2bytes,Tag Protocol Identifier(标签协议标识符),表示帧类型。取值为0x8100时表示802.1Q T...
1.通过SW1 vlan 10的地址ping SW2,中间链路抓包结果如下,VLANID与端口PVID不同,trunk口允许该vlan通过,端口直接透传对应的数据帧,Ethernet帧中携带了vlan10的tag 2.通过SW1 VLAN20的地址ping SW2,中间链路抓包结果如下,VLAN ID与端口PVID不同,trunk口不允许改vlan通过,端口直接丢弃对应的数据帧,中间链路抓取不到...
GigabitEthernet2/0/0 current state : DOWN Line protocol current state : DOWN Switch Port, PVID : 1001, TPID : 8100(Hex), The Maximum Frame Length is 9216 IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 4c1f-cc7c-8251 ...
Frame format VTP advertisements distribute this VLAN information for each configured VLAN: VLAN IDs (including IEEE 802.1Q) VLAN name VLAN type VLAN state Additional VLAN configuration information specific to the VLAN type In VTP version 3, VTP advertiseme...
interface Ethernet0/0/2 port hybrid pvid vlan 20 port hybrid untagged vlan 10 20 现象:现在使用PC1pingPC2,成功 具体过程分析: 1.PC1首先发送arp报文到sw1,进入接口时打上vlan10的tag,因为是广播报文,从trunk接口泛洪(trunk接口允许vlan 10通过)pvid为1,不剥离标签; ...
ethernet: fix Q-in-Q implementation, add Frame.ServiceVLAN Jul 6, 2017 vlan.go Format using gofumpt Feb 22, 2022 vlan_test.go Format using gofumpt Feb 22, 2022 Repository files navigation README MIT license ethernet Packageethernetimplements marshaling and unmarshaling of IEEE 802.3 Ethernet II ...
Type 各种封装帧Ethernet (0000)、Token Ring (0001)、FDDI (0010) 和 ATM (0011)的4位描述符。User Type 字段使用的4位描述符扩展或定义 Eth 42、ernet 优先级。该二进制值从最低优先级开场0到最高优先级3。SA 传输 Catalyst 交换机中使用的48位源 MAC 地址。LEN 16位帧长描述符减去 DA、type、user...
frame. The header is inserted immediately following the destination MAC address and the source MAC address. The tag header consists of two bytes of Ethernet Tag Protocol identifier (TPID, 0x8100) and two bytes of tag control information (TCI).FIGURE 7-2shows the Ethernet tag header format. ...