Understanding Linux Network Internals 2005 phần 8 ppsx

... Version - http://www.simpopdf.com _ _u8 flags Possible values for this field are listed in include /linux/ rtnetlink.h and include/net/neighbour.h: #define NTF_PROXY 0x 08 When the ip neigh user-space ... loopback IPv4 addresses AddressesClass 10.0.0.0 /81 x Class A 172.16.0.0/16 to 172.31.0.0/1616 x Class B 192.1 68. 0.0/16256 x Class C 127.0.0.0 /8 (Loopback)1 x Class A Figure 30-5 shows...

Ngày tải lên: 13/08/2014, 04:21

... memory management. On an i 386 , the maximum size is 8 MB. Because each element of the table consists of a pointer, which has a size of 4 bytes on a 32-bit processor, an i 386 system can support a ... down The networking subsystem has to disable all the routes associated with the device. This is done by fib_sync_down, described in Chapter 32. When a device is enabled or re-enabled The ne...

Ngày tải lên: 13/08/2014, 04:21

... (IPv4) Chapter 18. Internet Protocol Version 4 (IPv4): Concepts Section 18. 1. IP Protocol: The Big Picture Section 18. 2. IP Header Section 18. 3. IP Options Section 18. 4. Packet Fragmentation/Defragmentation ... develop their networking courses, based entirely on Linux boxes. That gave me access to a good lab equipped with all sorts of network devices and documentation...

Ngày tải lên: 13/08/2014, 04:21

... registration: #define INTEL _82 55X_ETHERNET_DEVICE(device_id, ich) {\ PCI_VENDOR_ID_INTEL, device_id, PCI_ANY_ID, PCI_ANY_ID, \ PCI_CLASS _NETWORK_ ETHERNET << 8, 0xFFFF00, ich } static struct ... remove function. This function unregisters the network device. You can find more details about the internals of the probe and remove functions in Chapter 8. This document was created...

Ngày tải lên: 13/08/2014, 04:21

... checked with the following functions, defined in include /linux/ netdevice.h: [*] [*] The other flags in the list are described in Chapters 8 and 10. netif_start_queue Enables transmission for the ... needed. The more the kernel network stack was enhanced and the more features that were added (in this layer and in others), the more complex the path of a packet through the network st...

Ngày tải lên: 13/08/2014, 04:21

... in the range 01 :80 :C2:00:00:00 to 01 :80 :C2:00:00:FF are reserved by IEEE for standard protocols. In particular, the first address of the range, 01 :80 :C2:00:00:00, is used by the 80 2.1D STP: both ... same IEEE spec states that the addresses in the range 01 :80 :C2:00:00:00 to 01 :80 :C2:00:00:0F should not be relayed by a bridge running the 80 2.1D protocol: they are either processe...

Ngày tải lên: 13/08/2014, 04:21

... two additional concepts, it needs an additional byte in its header, as shown in Figure 18- 8. Figure 18- 8. IP Timestamp option header The first three bytes have the same meaning as in the other ... handling of the option depends on the suboption specified by the sub-type field in Figure 18- 8 in Chapter 18, but the three suboptions are handled in the same general way. Regardless of the subt...

Ngày tải lên: 13/08/2014, 04:21

... www.oreilly.com (2 08. 201.239.36) 56 (84 ) bytes of data 64 bytes from www.oreillynet.com (2 08. 201.239.36): icmp_seq=0 ttl=50 time=245 ms 64 bytes from www.oreillynet.com (2 08. 201.239.36): icmp_seq=1 ... Picture" in Chapter 18 what the main tasks are of the IP protocol. IPv4 was designed almost 25 years ago (in 1 981 ), and given the speed with which the Internet and network ser...

Ngày tải lên: 13/08/2014, 04:21

... brief description of the input parameters: int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new, u32 flags) neigh Pointer to the neighbour structure to update. lladdr New link layer ... communication between the two systems is imminent. (For details involving ARP, see Figure 28- 2 in Chapter 28) . However, information learned in this way (passively) is not considered as auth...

Ngày tải lên: 13/08/2014, 04:21

... [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] 80 2.1D-19 98 standard 80 2.1D-2004 standard 80 2.1Q device 2nd 80 2.1Q-2002 standard 80 2.1s standard 80 2.1w standard 80 2.3 standard, compared to Ethernet protocols This ... subjects. Philip Dangler was the production editor, and Audrey Doyle was the copyeditor for Understanding Linux Network Internals. Sada Preisch proofread the book...

Ngày tải lên: 13/08/2014, 04:21