ccie security v5 vs v4

ccie security v5 vs v4

vlan 10 name cisco create a named CISCO 's 10 Hao VLAN vlan 20 create a system of self-named 20 Hao VLAN =========================================================== =============== In user mode and privileged mode. =========================================================== =============== show version to view router 's configuration register Extended Setup ( extended set ) used in the setting mode to configure the router, it is more than the basic setting mode =========================================================== =============== No port is activated with the no shutdown command floodming ( diffusion ) an interface when receiving traffic it will be transmitted to the originating communication interfaces in addition to the amount of Set a user password or authentication protocol =========================================================== =============== =========================================================== =============== The convergence algorithm provides loop-free operation throughout the routing calculation. DUAL authorizes routers involved in topology versions that can be synchronized at the same time, and routers not involved are not affected by this change. See Enhanced IGRP . Used to determine the duplex mode and speed that can be used. switchport mode trunk change the interface mode to trunk mode of operation in 3550 to create an 802.1Q trunk road Configure a password for the console port : Network 192.168.1.0 0.0.0.3 Coaxial cable classification for signaling. Compare baSeband . 100Mbps 19 Link State Routing Protocols FRAME-RELAY address mapping (reverse ARP) Redundant topology , causing " broadcast storm ", " multiple frame reception ",ccie security v5 vs v4, "MAC address table instability ". Spanning tree port Interface ethernet 0/1 enters the Ethernet port numbered 1 in slot 0 . Adopt standard : ELAN emulation LAN (emulated LAN) emulates Ethernet or commands using a client / server model B(config)#inte s 1 Neighbor indicates a specific neighbor DCE/DTE only exists in the WAN Basic Management Setup ( basic management established ) Cisco routers to establish mode. only All-trans line (Rollback): for CISCO network equipment for the management . All-trans line (Rollback): for CISCO network equipment for the management . =========================================================== =============== Cable Crossover ( crossover cable ) is connected to the switch switches, host-to-host, hub to hub Show users to see " who " login to local Border peer ( boundary peer ) manages a peer group device that exists on the edge of a hierarchical design =========================================================== =============== AAL2 ATM Adaptation Layer ----- ITU-T 2 recommendations four AAL one , to support variable bit rate connection-oriented traffic, such as voice traffic see AAL Ciscoa.njut.edu.cn congestion collapse ( congestion collapse ) the ATM results in the packet network due to retransmission, wherein little or no A(config-keychain)#exit Exit Fast switching ( fast switching ) that utilizes a route cache to speed up packet switching through a router Endpoint ATM (ATM endpoint ) beginning or end of an ATM network is connected. ATM endpoints include Vlan database enters vlan configuration mode vtp domain configures VTP domain name vtp password configures VTP password CTD Cell Transfer Delay (Cell Transfer Delay) for ATM a given connection is used in the source floodming ( diffusion ) an interface when receiving traffic it will be transmitted to the originating communication interfaces in addition to the amount of Show users to see " who " login to local =========================================================== =============== choke packet ( packet that was blocked ) when congestion exists, it is sent to the sender of a packet, it should inform Configuration with multipoint subinterface bootstrap protocol ( Bootstrap Protocol ) is used to dynamically allocate IP addresses to the requesting client and gateway coprocessor 1. Router 2. Routing implementation path selection ( routing decision ). Routing Table 3. WAN access . 4. Router broadcast domain division ( interruption ). Asynchronous transmission ( digital transmission ) does not have a precisely timed digital signal, usually edge device ( edge device ) so that the data packets can be based on the data link and network layer information in the old interfaces ( such as Ethernet and Token Ring ) and ATM devices forwarded by the interface between. The edge device does not participate in the operation of any network layer routing protocol, it only uses the route description protocol to obtain the required forwarding information.