cisco 3550 switch

As the core network switch of our company, the CISCO3550 has been running stably for many years, and its functions can also meet our needs. However, its port speed limit function is not as easy to implement as some other switches, fortunately, the implementation method has been found recently. After the configuration is complete, it is verified with the iperf software. The result shows that this method is effective. The specific implementation steps a

CISCO router switch SNMPv2 configuration, cisco Router Cisco router SNMP Configuration Snmp-server community CQGASPZW-R RO // ro read-only Snmp-server trap-source Loopback0 // use the loopbackaddress as the source address of the message sent by the trap. Snmp-server host 50.1.50.3 version 2c CQGASPZW-R udp-port 9006 /

Port speed limit must start QoS on the switch Switch (config) #mls QoS//Start QoS on the switch Here are the implementation steps. First, create an ACL Since this is a three-layer switch, although the port speed limit, but also to consider the network address through the port, in this case, we choose to the CISCO3550

Technical standards for VLANs IEEE 802.1Q was formally promulgated by IEEE Commissioners in June 1999, and the earliest Vlna technology was proposed by Cisco (Cisco) companies in 1996. With the development of the past few years, VLAN technology has been widely used in large and small enterprise networks, becoming the most popular Ethernet LAN technology at present. This article is going to introduce one of

Tags: Baidu search switch public Cisco errorCISCO 6500 Series SwitchesiOS version: Version 12.2 (SXJ)Exception logs for Cisco 6500 series switches: NRGYZ:ERROR:Database uninitialized, in addition to watching device performance, when viewing the history of device CPU usage, will find that the CPU is a lot of time to go to 100%!!!650) this.width=650; "title=" CPU U

, adding switches and end devices1, double-click switch into switch command line (CLI) mode, switch configuration mode by command2 in most cases for security reasons, you need to configure the switch privileged mode passwordValidation test3 Configuring the telnet login switchTo achieve remote login, first need to confi

:1900:19242,900:2,924, 2924M2950:2950-24, 2950G-24/48, 2950c-24, 2950t-24, 2950SX-24/482960:2960-24/48tt-l, 296024/48tc-l3500:3508g, 3524, 35483550:3550-24-smi/emi, 3550-48-smi/emi, 3550-12g/t3560:3560-24/48 also has a G.3750:3750-24/48-ts-s, 3750-24/48-ts-e 3750g-24/48-ts-s, 3750G-24/48-TS-E, 3750g-12s4,000:4,003, 40064,500:4,503, 4506, 4507R6,000:6,006, 60096,5

Introduction As the core network switch of our company, the CISCO3550 has been running stably for many years, and its functions can also meet our needs. However, its port speed limit function is not as easy to implement as some other switches, fortunately, the implementation method has been found recently. After the configuration is complete, it is verified with the iperf software. The result shows that this method is effective. The specific implement

(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 configuration

Cisco switch iOS upgrade, actually quite simple, but need to note is, can not let the switch flash storage is empty, must have an iOS in, or no iOS in Flash, waiting to upload iOS with Xmodem, so your time can be a lot of waste ah. Because the Rommon mode is not available for the Cisco Catalyst 2950, 2960,

operations on core commands, let's talk about port security operations: first, disable port 3. Use the switchport mode access command to configure the port as the access port for port security configuration. Run the switchport port-securtiy command to enable port security. Then run the swithchport port-security mac-address sticky command to let the port know the IP address of the host on which it connects. Finally, execute the command no shutdown to re-enable the port so that it can be informed

, and the slot number is different) Iii. Stack instances: 1: The stacked cables are physically connected. The connection method is master stack1, which is connected to slave stack2. 2: enable the master without any configuration. . 3: Server Load balancer is enabled. 4: No configuration is required. Line plug, automatic stacking election upon startup, master is highlighted) Note: You can also configure stacks first, such as IP addresses and priorities. 4. Check the current stack status: Show pla

We have explained a lot about the configurations of CISCO switches. Here we will mainly explain the port security configurations of CISCO 3550 switches. Scenario: There is a CISCO3550 switch in a certain unit. For the sake of network security, the security requirements for some ports are high, that is, only the specifi

Cisco 3750 switch stack configuration points 3750 stack is a real stack, the Catalyst 3550 series uses StackWise technology, it is an innovative stack architecture, A 32 Gbps stack interconnection is provided to connect up to nine switches and integrate them into a unified, logical, and optimized device for convergence, in this way, customers can deploy voice, vi

1. Unplug the power cord of the vswitch, press the switch Mode button, and re-plug the power cord of the vswitch. Release the Mode button after the LEDs on Port 1x are off. 2. For the Catalyst 2940/2950 L series: Unplug the power cord of the switch, hold down the Mode button of the switch, and re-plug the power cord of the sw