Understanding Linux Network Internals 2005 phần 1 pps
Understanding Linux Network Internals 2005 phần 1 pps
... Port Section 16 .11 . Changing State on a Bridge Port Section 16 .12 . The Big Picture Section 16 .13 . Forwarding Database Section 16 .14 . Handling Ingress Traffic Section 16 .15 . Transmitting ... Section 15 .7. Timers Section 15 .8. Topology Changes Section 15 .9. BPDU Encapsulation Section 15 .10 . Transmitting Configuration BPDUs Section 15 .11 . Pro...
Ngày tải lên: 13/08/2014, 04:21
Understanding Linux Network Internals 2005 phần 8 ppsx
... loopback IPv4 addresses AddressesClass 10 .0.0.0/ 81 x Class A 17 2 .16 .0.0 /16 to 17 2. 31. 0.0 /16 16 x Class B 19 2 .16 8.0.0 /16 256 x Class C 12 7.0.0.0/8 (Loopback )1 x Class A Figure 30-5 shows a topology ... memset(&t->neigh_vars [12 ], 0, sizeof(ctl_table)); } else { t->neigh_vars [12 ].data = (int *)(p + 1) ; t->neigh_vars [13 ].data = (int *)(p + 1) + 1;...
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Understanding Linux Network Internals 2005 phần 9 ppsx
... the locally configured subnets. For example, the command arp -s 10 .0.0 .1 11: 22:33:44:55:66 adds the mapping of 10 .0.0 .1 to 11 :22:33:44:55:66 to the ARP cache. This command would be rejected ... goes from 280 elements down to 10 , the size of the table will not decrease from 256 to 16 . 34 .1. 2. Organization of fib_info Structures As shown in Figure 34 -1, each fib_info struc...
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Understanding Linux Network Internals 2005 phần 2 pdf
... \ PCI_CLASS _NETWORK_ ETHERNET << 8, 0xFFFF00, ich } static struct pci_device_id e100_id_table[] = { INTEL_8255X_ETHERNET_DEVICE(0x1029, 0), INTEL_8255X_ETHERNET_DEVICE(0x1030, 0), } We ... drivers/net/3c59x.c driver of kernel 2.2 .14 : note how many times #ifdef MODULE and #if defined (MODULE) are used. #if defined(MODULE) && LINUX_ VERSION_CODE > 0x2 011 5 MODULE_AU...
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Understanding Linux Network Internals 2005 phần 3 pptx
... 11 .1. Enabling and Disabling Transmissions In the section "Congestion Management" in Chapter 10 , we learned about some conditions under ... *dev) { while (!netif_queue_stopped(dev) && qdisc_restart(dev) < 0) /* NOTHING */; } 11 .1. 2 .1. qdisc_restart function We saw earlier the common cases where a device is scheduled for ... status of the outgoing queue, this...
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Understanding Linux Network Internals 2005 phần 4 docx
... both A1 and A2 use D1 to access the rest of the network, all the hosts connected to A1 and A2 are isolated from the rest of the network until STP manages to select a new root port for both A1 and ... avoided. Note that BR1's port 2 is forwarding in Figure 15 -16 (c). There is no danger of causing a loop as long as one side of the link is blocked (BR2's port 2 in Figure 15 -1...
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Understanding Linux Network Internals 2005 phần 5 pdf
... example adds a route to the 10 .10 .1. 0/24 network via the next hop gateway 10 0 .10 0 .10 0 .1 and locks the PMTU to 750 bytes: ip route add 10 .10 .1. 0/24 via 10 0 .10 0 .10 0 .1 mtu lock 750 If the PMTU you ... S receives fragments with the same source and destination IP address (14 0 .10 5 .1. 1, 15 1. 41. 21. 194) and the same IP ID (1, 000), and therefore tries to put them...
Ngày tải lên: 13/08/2014, 04:21
Understanding Linux Network Internals 2005 phần 6 ppt
... Picture" in Chapter 18 what the main tasks are of the IP protocol. IPv4 was designed almost 25 years ago (in 19 81) , and given the speed with which the Internet and network services have evolved ... www.oreilly.com (208.2 01. 239.36) 56(84) bytes of data 64 bytes from www.oreillynet.com (208.2 01. 239.36): icmp_seq=0 ttl=50 time=245 ms 64 bytes from www.oreillynet.com (208.2 01. 23...
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Understanding Linux Network Internals 2005 phần 7 pot
... kernel when a user command changes the hardware address of a device. 27 .10 .2 .1. Updates via neigh_ifdown Figure 27 -11 summarizes the activities and functions that generate the external events ... memory pool). 27.6 .1. Garbage Collection Garbage collection refers to the process of eliminating resources that are not in use anymore. Like many Linux kernel subsystems (networking and ot...
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Understanding Linux Network Internals 2005 phần 10 pdf
... [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] 802.1D -19 98 standard 802.1D-2004 standard 802.1Q device 2nd 802.1Q-2002 standard 802.1s standard 802.1w standard 802.3 standard, compared to Ethernet ... subjects. Philip Dangler was the production editor, and Audrey Doyle was the copyeditor for Understanding Linux Network Internals. Sada Preisch proofread the book. Mary Brady and Colleen...
Ngày tải lên: 13/08/2014, 04:21