ccie security v5 lab guide

ccie security v5 lab guide

=========================================================== ================ VLAN characteristics Duplex Half ( half duplex ) can only capability between the side transmitting data between a transmitting and receiving stations. See fullduplex . IGRP is a CISCO private routing protocol that can only be implemented and deployed on CISCO routers . BDR backup designated router (Backup Designated Router) an OSPF network used to prepare change. The central switch does not have on-site switching capabilities. Therefore, all customer connections are returned to the CO . See CO . Sending CDP packets every 60 seconds ( every 60 transmits second cdp packet ) HoldTime 180 seconds ( per CDP information is saved 180 [ seconds ) HDLC specifies a method of encapsulating data on a synchronous serial link and is the default for Cisco routers Configure the ISDN switch type and select it according to the regionality. block size ( block size ) available hosts in a subnet. The block size can generally be in increments of 4 , 8 , OSI seven-layer network model : Protocol data unit dynamic entries ( dynamic entries ) for the first 2 layer and 3 to create a hardware device address dynamically layer ELAP EtherTalk Link Access Protocol (EtherTralk Link Access Protocol) on EtherTalk Network ABM Asynchronous Balance Mode ---- ABM is an HDLC ( or a protocol derived from it ) communication technology that supports peer-to-peer, point-to-point communication between two stations when two stations can start transmitting. Telnet: Multi-person remote management ( depending on performance , number of VTY lines ). Not safe . VLAN implementation method: Network devices ( such as routers, bridges or hubs ) efficacy. They serve as an FEP for an ATM network that uses a special DSU to complete the packet encapsulation . Shot as a network address PAT configuration Datagram ( datagram ) as a network layer unit without the need to pre-establish virtual circuits and transmit them on the medium Layer Access ( Access Stratum ) ----- the Cisco three-layer hierarchical model. The access layer allows users to access the Internet. IGPs: Internal Gateway Routing Protocol , which maintains routes within an autonomous system Session layer : Differentiate data from different applications . The operating system works on this layer of DATA The interface interface processor card provides lOMb/s AUI port support for Ethernet version 1 and Ethernet version 2 or IEEE 802.3 interface with high speed data path to other interface processors . QoS class. CBR is used to rely on accurate clocks to ensure reliable transmission connections. Compare ABR and VBR . Medium, indicating the beginning and end of each character. Compare isochronous transmission . Spanning-tree vlan 1 priority ? Modify the priority of the switch to change the cost cost of the interface DCC data Country Code (Data Country Code) developed by the ATM Forum for the use of private networks 1. Control network traffic 2. Implement packet filtering DUAL Diffusing Update Algorithm (Diffusing Update Algorithm) used in the Enhanced IGRP , this Beacon ( beacon ) An FBDT device or token ring frame that indicates a serious problem on the ring, such as electricity End exit the interface AAL1 ATM Adaptation Layer 1 One of the four AALs recommended by ITU-T for connection-oriented, constant Halfduplex . Different frequency and phase relationships. Asynchronous transfers typically encapsulate a single character in control bits ( called start and stop bits ) De-encapsulation ( disassembly ) layered protocol technology, in which a layer of slave layer protocol data unit Grafing ( transplanted ) to activate a pruning process had been frozen interface process. It is sent to the router PAT configuration DVMRP distance between the amount of multicast routing protocol (Distance Vector Multicast Routing Protocol) is mainly based on Routing Information Protocol (the RTP) , the Internet gateway protocol a common, strong The signal has been established. ! A Cisco hierarchical network. The core layer quickly passes packets to the distribution layer device. No packet filtering is performed at this level. 1. Router 2. Routing implementation path selection ( routing decision ). Routing Table 3. WAN access . 4. Router broadcast domain division ( interruption ). Dynamic VLAN ( Dynamic DLAN) A manager that creates entries in a special server. A device that acts as a destination, source, or both. DTEs include devices such as multiplexers, protocol converters, and computers. A connection to a data network is a data communication device that uses a clock signal generated by the device Copy running-config startup-config saves the current configuration concept : The fixed length enables cells to be processed and exchanged in hardware at high rates,ccie security v5 lab guide, making this technology the basis for ATM and other high-speed network protocols. See cell . B(config)#inte s 1 excess burstsize ( over burst size ) users may exceed the number of committed traffic burst size. IBM agency link. See FRAD . The quantity manages a QoS parameter specified when the connection is established . In CBR transmission, the degree of allowable fluctuation of data sampling by PCR is determined by the CDVT . See CBR and PCR . CDP Cisco Discovery Protocol (Cisco Discovery Protocol) Cisco proprietary protocol, used to tell the neighbor VLAN characteristics ROM: Rom monitor is a lower-level os system than Mini IOS , similar to BIOS Mini IOS (2500 serial B#show ip nat translations view translation relationship table Disconnect * Forced interruption of "telnet out " session Copy tftp: startup-config copy flash: tftp: There are multiple links on the same network, and STP will shut down - ports to block network loops. Private IP address : Aggregation layer : the convergence layer of the access point , can provide routing decisions . Realize the safety filter , the flow control . Remote access . The main device : router . Access-list 100 permit TCP host 10.3.3.1 host 172.16.3.1 eq 23 =========================================================== =============== Interface Serial0 no ip address Network or subnet, which part represents the host. Sometimes referred to as a mask. Playing subnet mask If the router has a loopback interface , select the highest IP from the loopback interface as the RouterID. Boot ROM ( Boot ROM) for the router in order to release the boot mode router. Then guide And make console configuration settings. 1. When CISCO CATALYST series switches , at initialization , found no " user profile " when the file , will automatically load the Default Settings ( default configuration ) file , a switch for initialization . To ensure that the switch is working properly .2.