如何區分 Unicast MAC address 與 Multicast MAC address? 首先我們先看看 MAC address 的結構,共有 32bits 如下,在 IP Multicast 中的前 23 個 Bits 是固定的,源由請看【為何 IP Multicast 位址的 MAC address 必須擠到 23 位元裡面?】有詳細的說明,但是在 NLB 使用的 Multicast 模式中沒有這個限制,因為...
MAC地址有单播、组播、⼴播之分。单播地址(unicast address)表⽰单⼀设备、节点，多播地址或者组播地址(multicast address、group address)表⽰⼀组设备、节点，⼴播地址(broadcast address)是组播的特例，表⽰所有地址，⽤全F表⽰：FF-FF-FF-FF-FF-FF。当然，三层的IP地址也有单播、组播、⼴播之...
MAC地址分成两部分,前24位是组织唯一标识符(OUI, Organizationally unique identifier),后24位由厂商自行分配。 MAC地址有单播、组播、广播之分。单播地址(unicast address)表示单一设备、节点,多播地址或者组播地址(multicast address、group address)表示一组设备、节点,广播地址(broadcast address)是组播的特例,表示所有...
（unicast MAC），还有组播MAC地址 （multicast MAC）。接口收到组播包，会把此包的目的MAC地址 （是个组播MAC）和自己的MAC地址比较，如果组播地址相同，就会接受此包。这样，局网内这个组群的所有成员，都会收到送往该组群的组播包
A first node may transmit, to a second node, based on a unicast MAC address of the second node or a multicast MAC address associated with the second node, a discover message that may include a first MAC address or a first range of MAC addresses. The first node may receive an offer ...
As defined by the IANA, the 24 most significant bits of an IPv4 multicast MAC address are 0x01005e, the 25th bit is 0, and the 23 least significant bits are the same as the 23 least significant bits of an IPv4 multicast address, as shown in the figure. For example, the multicast MAC...
This is my first time setting up Windows NLB. I would like to verify one thing about the multicast\unicast mac addresses. I realized a unique mac address is created for the NLB cluster. My question is as soon as the cluster is created, will this new cluster mac address be available righ...
【技术分享】unicast / multicast / broadcast ◆ 什么是单播、组播和广播? 在计算机网络中进行通信时,可根据通信伙伴的数量将通信分为以下三种类型。 ◆单播、组播和广播的用途 1.单播通信是最标准的通信类型,因为它通过指定通信伙伴进行一对一通信。 例如,你的电脑现在正通过单播与我的网络服务器通信,浏览这个网站...
However, in multicast mode, the ARP reply sent out by a host in the cluster in response to an ARP request, maps the cluster's Unicast IP Address to its multicast MAC Address. Such a mapping in an ARP reply is rejected by some routers, so administrators must add a static ARP entry in...
To enable the device to respond to such packets, run the set unicast-mac multicast-ip ns reply enable command to enable the device to respond to NS request packets that match the local device and have a unicast destination MAC address and a multicast destination IP address. Only LE1D2S04...