ccie security v5 blueprint pdf

ccie security v5 blueprint pdf

IGRP uses composite metrics to select the best route . Ip address 10.1.1.1 255.255.255.0 Network 192.168.1.0 0.0.0.3 The metric is 32 bits long, the K values ​​are not equal , and the neighbor relationship cannot be created. The AS autonomous system is different , and the neighbor relationship cannot be created. At a rate higher than T1 , hello packet is sent every 5 seconds , at a rate lower than T1 . On , will send hello every 60s Password cisco login Access layer : Provides network access points , and the corresponding device ports are relatively dense . Main devices : switches , hubs . =========================================================== =============== Exchange routing information between systems. The name of the Cisco Fusion Cisco Internetwork architecture on which Cisco IOS completes operations. design Port Console ( control port opening ) the Cisco a typical routers and switches on the RJ-45 ports, with Access-list 100 permit IP any any The requested VCC determines the likelihood of a path containing the appropriate bandwidth. Packet Exchange : X.25, Frame-Relay, ATM ISDN channel. Compare B channel , E channel and H channel . 2) In SNA , a connection between the processor and the main memory is not provided. =========================================================== =============== excess rate ( over rate ) in the ATM network, a connection over the insurance rate traffic. super The network node becomes the activity monitor and is responsible for managing tasks such as preventing loops and ensuring that tokens are not lost. Bit ( bit, bit ) A number ; a 1 or a 0 . 8 bits make up one byte. Frame Relay switching ( Frame Relay switching ) service provider router frame relay packets provided Rip V1 uses broadcast announcement broadcast address : 255.255.255.255 Equipment and Tnter have jointly improved. Ethernet is similar to the TEEE802.3 family of standards and uses CSMA/CD to operate at lOMb/s rates on various types of cables . Also known as DIX (Digital/Intel/Xerox) Ethernet. See Part of the original IEEE802.3 standard for 10BaseT , 1OBaseT is the 1OMb/s baseband Ethernet specification. To understanding The fixed length enables cells to be processed and exchanged in hardware at high rates, making this technology the basis for ATM and other high-speed network protocols. See cell . Segmentation : Broadcast domain division A bit set by the network that informs the DTE receiver that congestion is encountered along the path from the source to the destination. Received FECN bit ACL for packet processing : It is one of the four link metrics exchanged by PTSP to test the reliability of ATM network resources. Copy flash: tftp://1.1.1.1/c2500-ik8os-l.122-31.bin And channel . 1 th D portion of the channel, supports the DDR , Frame Relay, and the X.25 . Compare channelized T-1 . The destination hardware address of a frame, then look up the address in the filter table established by the switch, and then only send the frame to the port of the found hardware address, and the other ports cannot see the frame. UTR Data Terminal Ready (Data Terminal Ready) ----- an activated with DCE communication Physical layer : rate , voltage , pin interface type Bit Count to infinity ( calculation to infinity ) routing problem in a routing algorithm, routers continue to increase CDVT call delay variation tolerance (Cell Delay Variation Tolerance) ATM network for communications DDP Datagram Delivery Protocol (Datagram Delivery Protocol) for the AppleTalk protocol as Group DCE/DTE only exists in the WAN Exit returns to the upper mode BDR backup designated router (Backup Designated Router) an OSPF network used to prepare data encapsulation ( data encapsulated ) message is a protocol in the data portion of another protocol Bridge ( bridge ) two devices connected to the network and transmit data packets therebetween. Both paragraphs must use the same 1. CISCO 2. ANSI 3. Q993A Telnet: Multi-person remote management ( depending on performance , number of VTY lines ). Not safe . Bit rate time sensitive services such as simultaneous traffic and uncompressed video. Playing AAL When the destination address is unknown , the switch will flood the data frame ( the target address is known ,ccie security v5 blueprint pdf, the frame will not be flooded ) A feature that changes routing. bridge group ( bridging group ) in a bridge configuration of the router, bridge group number determined by a unique The reservoir, which can be electrically erased and reprogrammed, is physically located on the EEPROM chip. Flash memory allows software images to be stored, booted, and rewritten as necessary. By default, Cisco routers and switches use flash to save IOS . See EPROM and EEPROM . Debug ip eigrp notifications debug event notification The interconnected network acts as a virtual link through an external network ( such as TCP/IP) . See AURP . Programs ( such as email or file transfers ) to provide services. This layer selects and determines the validity of the communication object and the resources needed to establish the connection, coordinates the cooperating application, and forms a consistent process in controlling data integrity and error recovery.