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Encapsulation Frame-relay boot Frame Relay Package Encapsulation Novell-ether rules the Novell unique format used on the network segment Encapsulation PPP set PPP to the encapsulation method used by the serial port or ISDN interface Encapsulation SAP rules the Ethernet 802.2 format used on the network segment the Cisco password is SAP End Exit Configuration mode Erase Remove flash memory or configure cache Erase Startup-config Delete the conte
The detailed steps for restoring the password of a Cisco switch are illustrated. If the password of a Cisco switch is improperly restored, the password will be lost. Today, we will contact the steps for restoring the password of a Cisco
Cisco switch initialization ManagementTo properly manage and simplify troubleshooting, the following parameters should be configured during initial installation: 1. system name 2. manage ip configuration 3. clock and ntp settings 4. telnet and SSH access configuration 5. DNS6. system log 7. snmp is used to configure the switch system name on the
, midrange, and high-end of the network, respectively. Here are a few of the products for each series: 1, low-end products First of all say low-end products, 1900 and 2900 are low-end products typical. In fact, in the low-end switch market, Cisco does not occupy a particular advantage, because the 3Com, DLink and other companies have a better performance price ratio of products. The 1900
protected] bonding] # ethtool EM2Settings for EM2:Supported ports: [TP]Supported link modes: 10 BaseT/half 10 BaseT/full100 Baset/half 100 Baset/full1000 Baset/fullSupports auto-negotiation: YesAdvertised link modes: 10 BaseT/half 10 BaseT/full100 Baset/half 100 Baset/full1000 Baset/fullAdvertised pause frame use: NoAdvertised auto-negotiation: YesSpeed: 1000 MB/SDuplex: fullPort: Twisted PairPhyad: 1Transceiver: InternalAuto-negotiation: OnMDI-X: UnknownSupports wake-on: GWake-on: dLink detect
Cisco Fabric Manager is a Web-based, easy-to-use, responsive application that can be used to manage switches and networks in an integrated manner, thus simplifying the storage lan san) management of Cisco MDS 9000 series switches. Cisco Fabric Manager provides network-level management functions for storage administrators, including identification, multi-
Configuration of a layer-3 Cisco switch 1. Start a route on a layer-3 switch. Otherwise, layer-3 switch does not have the routing function switch (config) # ip routing2. Configure the VLAN ip address
----------- --------------------------------------------------------GI1/0/1 Ip-mac INACTIVE-NO-SNOOPING-VLANGI1/0/2 Ip-mac Active Deny-all deny-all 24GI1/0/3 Ip-mac INACTIVE-NO-SNOOPING-VLANGI1/0/4 Ip-mac Active Deny-all deny-all 24GI1/0/5 Ip-mac Active Deny-all Deny-all 24GI1/0/6 Ip-mac Active deny-all deny-all 24GI1/0/7 ip-mac AC tive 172.16.24.150 a4:4c:c8:10:63:ee 24gi1/0/8 ip-mac INACTIVE-NO-SNOOPING-VLANGI1/0/9 Ip-mac Active Deny-all deny-all 24GI1/0/10 ip-mac IN
): can only receive or send bpdus messages learning (learning) : can receive or send BPDU Message, and form mac forwarding (Forwarding) : can receive or send BPDU Message, and form mac Address table, send and receive data frames simultaneously STP Convergence: All ports on the switch are converted to forwarding or blocking mode, which takes 50 seconds by default. The
Cisco L3 switch Policy Routing for network access and Traffic DistributionI. Description of the solution environment 1. There are two groups of Group1 and Group2 in the environment, respectively, to access the Internet from two different network outlets. 2. The core network is a Cisco 3560G layer-3 Switch with four VLA
=" Wkiom1soqq7ck2jtaahgkzym5xw472.jpg "/>(This picture is borrowed from others)Global Configuration Mode:1: enter this mode first. 2: port configuration such as:switch# configureterminalSwitch (config) #interface fastethernet 0/3Switch (config-if) #speed10// Configure Port Rate 10M default AutoSwitch (config-if) #duplexhalf//full Full Duplex Half Half Duplex AutoSwitch (config-if) #noshutdown// Open PortSwitch IP Configuration: The switch divides
suddenly fails? Cisco switches are not so easy to break. Use the command shutdown, and then use no shutdown The network port returns to normal. Why does this happen? It may be that when a colleague changes the network module, the line is short-circuited, resulting in the software failure of the switch. Baidu: For more details, the following is a netizen's article: Solve the Problem of err-disabled o
1. Experimental topology650) this.width=650; "Src=" https://s4.51cto.com/wyfs02/M00/97/B2/wKiom1kxPDizomXqAABw1vEUgaA990.jpg-wh_500x0-wm_ 3-wmp_4-s_3605733301.jpg "title=" rspan.jpg "alt=" Wkiom1kxpdizomxqaabw1veugaa990.jpg-wh_50 "/>2. Switch configuration4F-IDC-01 ConfigurationVLAN 100Remote-spanMonitor session 1 Source VLAN 13Monitor session 1 destination Remote VLAN
Disable forwarding of a specific MAC address on a cisco SwitchIt is really annoying to see other illegal DHCP in the LAN. In addition to the dhcp snooping method, you can also directly disable the mac address! The MAC address of machine A is 00-01-02-03-04-05, which is connected to port F0/3 of Switch B, port F0/3 is in VLAN3. Currently, forwarding of A is blocked on port B. You can set the following accord
message are correctIf a large number of messages are sent, the network bandwidth will be exhausted to form another Denial-of-Service attack.3. The client can specify the IP address at will.The client does not have to use the DHCP service. It can set IP addresses in a static way. If any,This will greatly increase the possibility of network IP address conflict.II. Introduction to DHCP Snooping TechnologyDHCP Snooping is a DHCP security feature. Cisco s
Microsoft's Windows Server 2012 has been able to support LACP link aggregation, due to the use of link aggregation can achieve line redundancy and bandwidth increase, here I used a Cisco 2960 to do a test for interested friends reference.Experiment Preparation:Cisco switch 29,601, install server 2012 servers, there are two Gigabit network card, network cable two root.Steps:1. Configuration of
After using the Console port to set IP address information for the switch and enable the HTTP service, you can access the switch through a Web browser that supports JAVA, you can modify the parameters of a vswitch through a Web browser and manage the vswitch. In fact, you can modify and set many important parameters of a vswitch on the Web interface, and view the running status of the vswitch in real time.
and get connected to the switch IP address6. Enter the access layer switchRun the box "Telnet 192.168.66.1";Show mac address-table dynamic address 3w45.65e3.8866 get port numberShow mac address-table Dynamic interface Gi2/0/17 detail get only one piece of information that proves that the MAC address is on this switch, if not repeat steps 4, 57, first introduced to swit
1. Connect the console port of the vswitch to the terminal or PC Super Terminal. 2. Press and hold the mode key on the vswitch and turn on the power. 3. initialize the FlashSwitch: flash_init4. rename the configuration file Switch: rename Flash: config. text Flash: config. old5, restart Switch www.2cto.com Switch: boot6, Swit
data transmission, but the cost is that it cannot perform verification and Error Correction on data frames. Free segmentation Mode Free Fragment-free) mode is used when the switch receives a data frame, once it detects that the data frame is not a conflict frlision fragment), the forwarding operation is performed. The conflicted fragment is a data frame fragment damaged by a network conflict. It is characterized by a length less than 64 bytes. Con
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