cisco transceiver

that the admin domain is able to overwrite all branch switches. The Cisco switch is capable of supporting any media as a trunk, and it can use its own ISL tags for relaying. ISL (Inter-Switch link) is a protocol between switches, between switches and routers, and between switches and servers to transfer multiple VLAN information and VLAN data streams, configured with ISL encapsulation via ports directly connected to the switch, The VLAN allocation a

(global configuration mode)S1 (config) #interface vlan 1 --Enter VLAN 1 PortS1 (config-if) #ip address 192.168.1.1 255.255.255.0 --Configure the vlan1 with an IP address so PC1 and S1 can ping interoperabilityS1 (config-if) #no shutdown --activating VLAN 1 PortS1 (config-if) #end --Return to privileged modes1#copy running-config startup-config --Save configuration (from memory RAM to hard disk NVRAM)s1#show running-config --View switch configuration4. Go to PC1 host command line interface(1) F

protocol between as is called the External Gateway Protocol External Gateway Protocol (also called Inter-Domain routing protocol): there are two types of inter-domain routing protocols: externalGateway Protocol (EGP) and Border Gateway Protocol (BGP)2) Dynamic routing according to the algorithm can be divided into: Distance vector routing protocol, link state routing protocolDistance Vector Routing protocol: Select Route RIP,IGRP based on the number of routes that are routed from the source net

"Introduction" Within a switched network, it is possible to segment and organize flexibly through VLANs. VLANs can group devices in a LAN. A group of devices in a VLAN communicates as if it were connected to the same line. VLANs are based on logical connections, not physical connections. Types of VLANsThere are many different types of VLANs used in modern networks. Some VLAN types are defined by traffic category. Some other VLAN types are defined by specific features.Data VLAN: used to deliver u

Automatic backup and fallback of Cisco iOS profiles requires the use of the Archive Archive configuration mode feature of iOS. In general, only the version number of iOS has the Archive configuration mode feature in 12.3 (4) Cisco iOS profile automatic backup All commands are as follows: router> Router>enable Router#configure Terminal Router (config) #archive Router (config-archive) #write-memory

Trunk Link Trunk: Same inter-VLAN communication on different switchesHow to play tag tag encapsulationPackage Type: IEEE 802.1q/cisco ISLIEEE 802.1q:4 Bytes, internal encapsulation, publicCisco isl:30 bytes External encapsulation, privateSwitch port configuration mode: Trunk/acces (OFF)/Dynamic desirable/dynamic AutoTwo auto NO mode of operation generally either trunk or accessEthernet Channel: Multiple physical ports to form a logical port for greate

Cisco configuration instance _ Cisco dual-Egress NAT configuration objective: to simulate the routing function based on the original address policy when a dual-Egress link is available, and access to the external network from different original addresses is realized, in most cases, the vro uses NAT to translate the Intranet address on the external port, so this experiment also uses dual NAT to translate the

Cisco CCNA Chapter 5 answers for the third semester, Cisco ccna for the third semester

Cisco Terminal configuration: (DHCP only)Service DHCPIP DHCP relay information trust-allInterface Vlan4IP address 192.168.4.254 255.255.255.0IP helper-address 10.0.0.11!Interface Vlan6IP address 192.168.6.254 255.255.255.0IP helper-address 10.0.0.11!650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/59/7E/wKioL1TUvvqTNu5WAASFSbihEBY376.jpg "title=" 2015-02-06_21-11-28.png "alt=" Wkiol1tuvvqtnu5waasfsbiheby376.jpg "/>2, the common configuration

Introduction after you log in to the CISCO switch, we will need to use some common operations, such as querying, restarting, and so on, where some of the commonly used operations are grouped together. Query HelpIn different modes, we can enter the question mark directly (? You can query all the commands that you can use in the current mode. When entering a command, if you do not remember the full name of the command, enter the first few characters

LAN is not changed, and the configuration and access control list of the external network Port WAN needs to be changed .Increase the configuration of the VPDN. Assuming the username is admin, password 123456, the configuration process is as follows:This case is XX Telecom ADSL PPPoE access, need to use a common ADSL modem and a Cisco 2600 router (dual Ethernet port), IOS 12.2 (), can realize LAN sharing Internet.　　This case configuration is divided i

Tags: process proc ima RAC Technology share static term ADOBy configuring static routes, you can achieve an increase in routing entries for routers in a relatively simple network.However, if there are more than 20 routers in a network, it is difficult to configure static routes to accommodate the complexity of routing entries and changes in the network. At this point we can use the RIP protocol to configure simple dynamic routing, thus reducing the workload.Configuration ideas1 Configure the IP

policy in Router 2, specifying host and port7 The ACL takes effect under the port of the Router 2 Xia Lian serverNetwork topology1 Configuring Router 1 single-arm routing, establishing sub-interfaces and configuring IP addresses, etc.2 Configuring the Switch's VLAN and port type3 Configuring the IP address of the PC4 Configuring the interface address for Router 25 Configure static routes to communicate properly between networks6 Configure the ACL policy on Router 2 to allow PC1 to access the se

port to enable ACL policyNetwork topology1, configure Router 1, turn on the single-arm routing configuration subinterface address and connect the physical interface address of another route and open the port2 Configuring the VLAN of the switch, configuring the port type3 Configuring the IP address of the PC, specifying the gateway4 Configuring router static routing to enable network interoperability5 Create a new ACL policy on the destination router6 Enter the destination port to make the new A

Tags: routing switching technology HSRP working principle three-layer Exchange STP function DHCP serviceFirst, the questionDay 011. What is a Vlan? What does VLAN do? is the interface of the default switch in that VLAN? What kind of Vlan??2. What is Trunk? What is the mode of Trunk? How to negotiate?3. What is the role of EtherChannel?4. What is DHCP? What is the role of DHCP?Day 021. What is the three layer Exchange? What is the difference between a two-layer switch and a three-tier switch and

Day 051. What is NAT? What are the implementation methods?NAT (Network address translation): By translating the private IP address of the internal network into the world's only public IP address, the internal network canTo connect to an external network such as the Internet.How NAT is implemented:The corresponding relationship of the IP address is one-to-one, and is constant, with the help of the static transformation, it can realize some specific service in the external network.Access to the se

Using Cisco to build an experimental environment I.. Configure DHCP client;Two, configure the switch SW1SW1 (config) #vlan 10SW1 (Config-vlan) #exSW1 (config) #vlan 20SW1 (Config-vlan) #exSW1 (config) #int FA0/1SW1 (config-if) #switchport mode accessSW1 (config-if) #switchport Access VLAN 10SW1 (config-if) #no shutdownSW1 (config) #int FA0/2SW1 (config-if) #switchport mode accessSW1 (config-if) #switchport Access VLAN 20SW1 (config-if) #eSW1 (config

(HSRP)Direct Connect Ping PassTarena-r1 (config) #interface f0/0TARENA-R1 (config-if) #standby 1 IP 192.168.1.254TARENA-R1 (config-if) #standby 1 priority 200 PrioritiesTARENA-R1 (config-if) #standby 1 preempt preemptive rightTARENA-R1 (config-if) #standby 1 track F0/1 port trackingTarena-r2 (config) #interface f0/0TARENA-R2 (config-if) #standby 1 IP 192.168.1.254 act as IPTARENA-R2 (config-if) #standby 1 priority 195 PrioritiesTARENA-R2 (config-if) #standby 1 preempt preemptive rightTARENA-R2

Tags: tle simulates a trunk mode ace 51cto fast spanning tree quick typeLoops are present in the network, and all loops are formed due to confusion caused by ambiguous destination paths. The loop has a great impact on the network. Spanning Tree protocol is a good solution to this problem.The idea of spanning a tree protocol topology is that, regardless of the physical connection between switches, the switch can automatically discover a network with no loop topology, and the network of the logica

Some cisco switch modules organize the TwinGig Converter Module of the Catalyst 3750-E Series Switch: www.2cto.com TwinGig SFP converter can convert the 10 thousand M Ethernet X2 interface into two Gigabit Ethernet Small pluggable (SFP) ports. XENPAK uplink modules of Catalyst 3750G series switches: common optical modules of Ethernet switches include SFP, GBIC, XFP, and XENPAK, respectively: www.2cto.com SFP: Small Form-factor Pluggable