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OSPFThe Protocol is required by the customer and is in the following topology. Only the router R3 and R1 and R2 are allowed to establish a neighbor relationship, and the relationship between R1 and R2 is not allowed. The brief topology is as follows: OSPF limits the establishment of the FULL Neighbor Relationship-method 1 The advantage of changing the network type of OSPF is that LSA only transmits data on the relevant link and does not pass the data

Address: http://www.myarticlemall.com/Article/Cisco-CCNA-Exam-Tutorial---Troubleshooting-Directly-Connected-Serial-Interfaces/2611 Controllers are the part of the interface that makes the physical connection. Most important to us is what kind of cable is attathed to a serial interface. A dte (Data terminating equipment) cable is the normal cable you shoshould use.Being DTE means you have CT the other end to providing clocking. A dce (Data circuit-terminating equipment) means that this device m

Tags: Cisco router Firewall 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M02/4C/7E/wKioL1Q-cIah_T1bAADc8Tx_fkM152.jpg "Title =" 6.png" alt = "wKioL1Q-cIah_T1bAADc8Tx_fkM152.jpg"/> Lab objectives: 1. Configure static routes to achieve network-wide interconnection. 2. R1 can telnet to R3, R4, and R3. The ACL rules are denied and the R4 cannot telnet to R1 and

Vroisis ISIS basic configuration tutorial, vroisis isis basic configuration Lab content:There are four routers in the network. The IS-IS configured to connect the network. R1 and R2 are L1 routers, Area10 IS a common area, and Area20 IS a backbone area. Tutorial topology: Experiment Configuration: [R1] isis 1[R1-isis-1] is-level-1[R1-isis-1] network-entity 10.20..0000.0001.00[R1-isis-1] inter g0/0/0[R1-GigabitEthernet0/0/0] isis enable 1 [R2] isis 2Create IS-IS process 2[R2-isis-2] is-level-1Co

address 1.1.4, then R1 sends an ARP broadcast to f0/0 to query the MAC address. What if R2 and R3 receive ARP broadcasts? By default, both R2 and R3 enable the proxy ARP. If the local ARP table contains the ARP record of this address, the ARP-replay packet is sent. But on R1, it was found that R1 did not record the mac address of 1.1.4 to the ARP table, but it was discarded. Why? Because R1 will first dete

This blog article describes how to modify the next hop attribute value of NEXT_HOP through BGP, including modifying the next-hop attribute through next-hop-self, use route-map to modify the NEXT_HOP attribute values of BGP routes. 1. You can change the next-hop attribute through next-hop-self. When R5 is updated to the EBGP neighbor R2 BGP Route 5.5.5.0, NEXT_HOP = 192.168.25.5, this attribute will always follow this BGP Route in AS234, then for R4 and

]; Nslog (@ "% @", r2.em _ name ); Nslog (@ "% d", r2.em _ age ); Nslog (@ "% d", r2.em _ sex ); Nslog (@ "% @", r2.em _ bankcardid ); Nslog (@ "% @", r2.post. Salary. sy_level ); Nslog (@ "% F", r2.post. Salary. sy_scale ); Nslog (@ "% @", r2.bank. bk_name ); Nslog (@ "% @", r2.bank. bk_address ); Nslog (@ "---------- 2nd Methods ----------"); // There are 2nd Methods Nsentitydescription * emety3 = [nsentitydescription entityforname: @ "department" inmanagedobjectcontext: Self. managedobjectco

, find the eligible processes, and finally modify the number of resources available to the system when the process has finished executing;3. Continue to compare the remaining processes and the number of available resources to find the processes that can be implemented below;4. and so on;The following example to explain these obscure words, be sure to take a serious look O (∩_∩) o~"Example" assumes that there are 3 types of mutually exclusive resources R1, R2,

irq_addr DCD os_cpu_arm_exceptirqhndlr fiq_addr DCD OS_CP The code for the U_ARM_EXCEPTFIQHNDLR Interrupt service function OS_CPU_ARM_EXCEPTIRQHNDLR is as follows: Area code, code, READONLY CODE32 os_cpu_arm_except IRQHNDLR SUB LR, LR, #4; Lr Offset to return from this exception:-4. Stmfd sp!, {r0-r12, LR}; Push working registers. MOV R3, LR; Save Link register. MOV R0, #OS_CPU_ARM_EXCEPT_IRQ B OS_CPU_ARM_EXCEPTHNDLR OS_CPU_ARM_EXCEPTHNDL

0x30008000 is loaded into the R1, and Ldr is preceded by a constant =. (Note the difference with MOV, MOV is #). STR (store) is used to store the value of a register in an external storage space, which is the inverse operation of LDR. STR R0,[R1]; The value of the R0 is credited to the R1 corresponding address space (*R1 = R0). 6.ADDS R0,R1,R2; R0=r1+r2,adds s means to write carry results to CPSR,ADC R5,R3,R4; R5=

1. Topology Map: 2. Interface configuration: R1 (config) #int f0/0 R1 (config-if) #ip add 10.1.1.11 255.255.255.0 R1 (config-if) #no sh R2 (config) #int f0/0 R2 (config-if) #ip add 10.1.1.12 255.255.255.0 R2 (config-if) #no sh R3#vlan Database R3 (VLAN) #vlan 10 VLAN Ten added: name:vlan0010 R3 (VLAN) #exit APPLY completed. Exiting .....

published and learned correctly for the VBR in all regions. Otherwise, network interruption may occur when splitting the IGP domain. For example, although the default OSPF route published by R1 is learned by R15, R15 cannot obtain the default route when R1 and R2 interrupt the OSPF neighbor relationship, while R15 does not enable BGP, therefore, the Location A network is inaccessible in R15. 3) remote site hubs cannot back up IGP 650) this. width = 650; "src =" http://www.bkjia.com/uploads/alli

This section mainly uses experiments on static routing settings to help readers deeply understand the concept of routing, and Master Common commands such as static routing settings, viewing route tables, and setting up classless routes. 1. Tutorial Purpose Through this experiment, you can master the following skills:Set static routesSet to enable the router routing functionView route tableUse of ping and trace commands 2. device requirements Three Cisco routers, one of which has two Ethernet int

5.2 extended ACL Purpose: 1. master the basic preparation of number extended ACL. 2. Understand the basic features of serial number extended ACL. Tutorial topology: 650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131227/06153444D-0.png "title =" 5.2.png "/> Tutorial steps: 1. Configure the IP addresses of each vro Based on the topology in the figure, and deploy static routes to ensure full network connectivity. The configuration is as follows: On R1 R1 (config) # ip rout

, request a response, response to the detailed route information of the query packet, ACK, confirm that the reliable data packet is only available in the middle of the preceding three types, A -- UPDATE/Query/Request --> B a ◆ Modify Measurement Method: 1. bandwidth: Modify the bandwidth unit of XXX bits under the bandwidth interface of the ingress interface; The management traffic of VPN accounts for 1/2 of the bandwidth; latency: Modify the delay 10 of the delay interface of the ingress interf

Instruction Category:1. Arithmetic and logic instructions2. Comparison instruction3. Jump Instruction4. Shift Instruction5. Program Status Word access instruction6. Memory Access Instruction++++++++++++++++++++++++++++++++++++++++++++++++++Information on the instruction of the ARM compilation Manual (Chinese version). CHM, Note: This information is arm assembler manual, we use the GNU assembly, so the syntax is different in case.Use the assembler in the previous article to learn the usage of eac

203 Interface SERIAL1/3 302 will cancel a >!Interface SERIAL1/3No IP addressEncapsulation Frame-relayNo IP route-cacheSerial Restart-delay 0Frame-relay Lmi-type CiscoFrame-relay Intf-type DCEFrame-relay Route 301 Interface SERIAL1/1 103Frame-relay Route 302 interface SERIAL1/2 203 will cancel this article >!===============================================R4#sh Frame-relay RouteInput Intf input DLCI output Intf output Dlci StatusSERIAL1/1 102 SERIAL1/2 201 ActiveSERIAL1/1 103 SERIAL1/3 301 Activ

is to take the minimum number of a key to verify ( and both ends must use the same key ID [key 0] to verify ), will not use Key1 or Key2 to go down to verify so we should be in the R2 configuration as followsR2#sh Run | Se key ChainKey Chain Fuyi2Key 0 \ \Key-string FUYICCNAKey 1Key-string FUYICCNAAdditional key configuration can also be connected to Send–lifetime and accept–lifetime to define the validity period of a key1.3 EIGRP Manual RollupTopology diagram: R1 (e0/0)----(E0/1) R2 (e0/0)----

following is an example. After compilation, after debugging, we can see that the cursor points to the absolute address zero, where an abnormal vector table is stored. It corresponds to the following source files in startup. s: After running, jump to the frequency of CPU initialization immediately. That is, the phase-locked loop is initialized and locked at a fixed frequency. The Code is as follows: ; Setup PLL IF PLL_SETUP LDR R0, = PLL_BASE MOV R1, # 0xAA MOV R2, #0x55 ; Configure an

Author: wogoyixikexie @ gliet Void launch (DWORD dwlaunchaddr) is implemented in smdk2440a/src/bootloader/eboot/util. S (32 ).; **************************************** ************************************** Include kxarm. h Phy_ram_start equ 0x30000000Vir_ram_start equ 0x80000000 Textarea Leaf_entry launch LDR R2, = physicalstartLDR R3, = (vir_ram_start-phy_ram_start) Sub R2, R2, R3 MoV R1, #0x0070; Disab