By William R. Parkhurst
Scorching e-book on a scorching technology--Cisco's new new release of routers is designed to address IP Multicasting, an important to video conferencing and groupware. step by step assistance on the way to installation and troubleshoot multicasting in a Cisco Router atmosphere. entire assurance of present and destiny intranet multicast routing protocols, interoperability framework, web workforce administration protocol, and extra. From the revered writer of McGraw-Hill's Cisco Router OSPF layout and Configuration advisor.
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Extra info for Cisco Multicast Routing And Switching
0 and determine the network number, the subnetwork numbers, and the range of host numbers. 0 and the range of hosts for each subnet is 1 to 254. Now let's try a bit more complicated example. 0. The subnet mask borrows 11 bits from the host portion of the address. The first 8 bits borrowed include the entire third octet, which has a value of 0 to 255. The 3 bits borrowed from the third octet have the values 000 00000 = 0 001 00000 = 32 010 00000 = 64 011 00000 = 96 100 00000 = 128 101 00000 = 160 110 00000 = 192 111 00000 = 224 Why are the values 0 (all zeros) and 255 (all ones) for the third octet, and 0 (all zeros) and 224 (all ones) from the fourth octet included?
224. The subnet numbers for this design are any four of the following, as shown in Figure 2-4. 192 Although subnets solve some of the problems associated with the inefficient use of IP address space, situations occur when simple subnetting does not suffice. Consider the network in Figure 2-5 in which two routers are connected by a serial link. This serial link is a point-to-point connection, so there are only two hosts on the link, the two router interfaces. Each network must also be on a separate subnet, so no matter which subnet mask we choose, we will be wasting IP addresses.
Because no members are present on the network, the router does not need to periodically transmit General Membership Queries out of the interface. Routers will be notified by hosts that want to join a particular group. A host can either transmit a version 1 or version 2 IGMP Membership report. If only version 2 Membership Reports are received, the router will make a transition to the Members Present state. If a version 1 report is received, then the router will make a transition to the Version 1 Members Present state, even though there may be version 2 hosts present.
Cisco Multicast Routing And Switching by William R. Parkhurst