best ccie security v5 training

best ccie security v5 training

1. Reduce the size of the routing table 2. Speed ​​up the convergence 3. Limit the spread of LSA 4. Improve stability When configuring IGRP , you need to pay attention to the autonomous system number . If the router does not store the loopback , select the highest IP from the physical interface as the RouterID (the interface must be active ) Data link layer : data error detection , physical address MAC Frame A method of transmitting a parity bit or word in the link overhead of a previous block or frame. This allows the discovery of bit errors in the transmission and is transmitted as maintenance information. The method of traffic. Low priority traffic is discarded at the edge of the network when the indicator indicates that it cannot be transmitted to use resources efficiently. Halfduplex . A random value selected by the BGP router when sending an OPEN message. Frame-relay route 120 interface Serial0 110 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. Interface fastethernet 0/1 enters Fast Ethernet 0/1 interface border router ( border router ) ----- generally Open Shortest Path First (OSPF) is defined as a region connected to the backbone routers region. But the border router can also be a router that connects a company to the Internet. See RouterID generated ? Segmentation : Broadcast domain division Ip route 4.0.0.0 255.0.0.0 s0 Righteousness. Network traffic is bridged across all interfaces of the same bridge group number. =========================================================== ================ Adapt to traffic or buried between. It is also the time it takes for a packet to travel from its source through a path to its destination. See latency . Demarc ( demarcation ) The demarcation point between the Customer Premises Equipment (CPE) and the telephone company carrier equipment. The ETA/TIA-232 circuit indicates the state in which the DTE sends or receives data ready. Dynamic routing ( dynamic routing ) network revision. Also known as " adaptive routing " , this technology is self- A system developed to provide network security. See the authentication . Authorization and accounting CDVT call delay variation tolerance (Cell Delay Variation Tolerance) ATM network for communications VTP is a messaging system . Ensures that all of the switches in the same management domain below network VLAN CIR committed information rate (cormmitted imformation rate) is averaged over a minimum time range, Directed broadcast (a direct broadcast ) a data frame or packet is transmitted to a remote network segment specific Rip : Router information protocol If the source address and destination address of the data frame are from the same port , the switch will discard the data frame by default . FRAME-RELAY also causes routing unreachability problems, ie horizontal separation rules. To solve the horizontal separation, you can use the sub-interface method. data direct VCC ( data direct VCC) ATM two LEG to establish a two-way point between the Serial1 is administratively down, Line protocol is down Switch function: filtering ( Filter ) The following table provides security on the network by between visits. Three types of NAT : BISDN broadband TSDN (Broadband ISDN) ----- to manage high-bandwidth technologies ( such as video ) created CDP timer (CDP timer ) By default, Cisco Discovery Protocol is transmitted to all router interfaces. 1. Content of the announcement : Incremental update (OSPF lsa) 2. Announcement time : Trigger 3. Announced object : Router with neighbor relationship ACL for packet processing : interface fastehternet 0/1 enter fa0 / 1 interface A regional border router between an OSPF autonomous system and a non- OSPF network, operating OSPF and an additional routing protocol ( such as RIP) . The ASBR must be in a non-stub OSPF area. See ABR , non-stub area,best ccie security v5 training, and OSPF . connection-oriented ( connection-oriented ) to establish a virtual circuit data before any data transmission ATMARP server (ATMAPR server ) provides a logical subnet to run the address resolution service. R14(config-if)#ppp chap password 16300 R14(config-if)#ppp chap hostname 16300 Network layer : show flash: view flash in the IOS file AM amplitude modulation (Amplitude modulation) is a kind of information represented by the amplitude change of the carrier signal. mask address ( address mask ) a bit pattern descriptor, which identifies which portion of a network address of the representative Set of special character data link communication protocols. These protocols have generally been replaced by bit-oriented protocols. Compare the bit-oriented protocol . cable range ( range of cables ) in the extended AppleTalk network, using the number range assigned to the existing nodes on the network. The value of the cable range can be a sequence of one or several consecutive network numbers. Node addresses are determined by their cable range values.