The IT Certification Examination Resources Network has collected a number of training materials for Cisco agents, including answers to pre-sales questions concerning routers, switches, IP/TV, firewalls, VPNs, network management, HFCs, VOIP, and equipment procurement., it can also be used as an entry-level document.12. Question: Which switches Does Cisco currently support layer-3 switching?Answer: Catalyst 2948G-L3, Catalyst 4908G-L3, Catalyst 4003, Catalyst 4006, Catalyst 5000, Catalyst 6000, an
2900 XL is similar to that of a single port. 3. For the stacking of Catalyst 3500XL/2900XL, two stack methods can be selected: Chrysanthemum method (providing 1g bandwidth) or point-to-point method (providing 2G bandwidth ). A: Half Duplex chrysanthemum chain switch ---- switch --- switch B: Half Duplex chrysanthemum chain redundancy switch ---- switch --- switch | ______________________________ | c: point-to-point method: you can use 3508g-xl to sta
sensitive applications such as FTP or e-mailSMTP.
Implement multicast management using IGMP listening
Internet Group Management Protocol (IGMP) Listening allows the switch to "listen" to conversations between hosts and routers. When the host sends a multicast group IGMP request, the switch attaches the host port number to the group Destination Address GDA) list. Similarly, when the switch hears an IGMP exit request, it moves the host port number from the entry of the content addressing memory C
, 3350-12 T, 3500XL, 2900XL, and 1900 switches. Using Cisco switch cluster technology, users can access CMS using any standard Web browser, A single IP address can be used to manage up to 16 interconnected Catalyst 2950, 3550-12 T, 3500XL, 2900XL, and 2900 switches, regardless of their geographical location relationship. CMS provides an integrated management interface for all Cisco IOS functions and firmwar
Cisco, or other types of switches may be added in the future, it is best to select the IEEE 802.1q trunk protocol. It can be seen that the Catalyst 4000 used in multiple vswitch networks only supports the 802.1q trunk protocol, so you cannot select the ISL protocol.
As far as I know, In a Cisco environment, 802.1q is called "dot1q" packaging. After you select the 802.1q protocol, you should activate the trunk line. However, not all modules of the Catalyst 6500 series switch support trunk lines.
Cisco has become a leader in the communication industry, and its product performance is still very good. Here we mainly explain the common problems and solutions of Cisco switches. Here we will share with you some of them, I hope it will be useful to you.
Cisco switch FAQ 1: What switches Does Cisco currently support layer-3 switching?
Answer: Catalyst 2948G-L3, Catalyst 4908G-L3, Catalyst 4003, Catalyst 4006, Catalyst 5000, Catalyst 6000, and Catalyst 8500 series.
Cisco switch FAQ 2: Can the Ca
//Target Port www.3lian.com 2900/3500XL Switch: Setspan6/176/19//span: The source port is 6/17 target port is 6/19 2950/3550/4000ios/6000ios Switch: Monitorsession1local//span monitorsession1sourceinterfacefastethernet0/17both//Source port, or it can be a VLAN monitorsession1destinationinterfacefastethernet0/19//Target Port If you are not on the same switch, you need to configure Rspan (Remotespan). Different Ethernet switches have differ
1. Catalyst 2900XL/3500XL/2950 series switch port monitoring configuration Run the following command to configure a port listener:Port monitorFor example, F0/1 and F0/2 belong to the same VLAN1 and F0/1 Listen to ports F0/2 and F0/2:Interface FastEthernet0/1Port monitor FastEthernet0/2Port monitor FastEthernet0/5Port monitor VLAN12. Configure port listening for Catalyst 6000, and series switchesRun the following command to configure a port listener:Se
command to configure Port listening: {set | clear} Port Mirror
◆ Enable port listening: set port mirror source-port mirror-port sampling {always | disable | periodic} [max-packets-sec
◆ Disable port listening: clear port mirror
In the command, mod-port-range specifies the port range; mod-port-spec specifies the specific port; piggyback-port specifies the port of the two-way image; sampling specifies the image cycle; max-packets-sec is only used when sampling is set to periodic. It specifies th
, the Administrator only needs to use the command switch to upgrade all the vswitches in the cluster.
The benefits of cluster technology to network management are beyond doubt. However, to use this technology, we should note that different manufacturers have different implementation solutions for clusters. Generally, the manufacturers use proprietary protocols to implement clusters. This determines that the cluster technology has its own limitations. Vswitches of different manufacturers can be c
implementation of integrated applications and services in the network.
Cisco Catalyst 3550 provides advanced layer-3 refined QoS features to ensure classification and sorting of network traffic and to avoid congestion in the best way. Before a packet enters the shared buffer, the Catalyst 3550 smart Ethernet switch can classify, reclassify, and process the incoming packet according to the policy (determine whether the packet flow is from the intended user or not, and take action on the package.
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 according to different vswitches: CatOS (v5.5 or above ): set cam permanent 00-01-02-03-04-050/4
processing ingPort mirror configurations:Grouping Group 1:Source Port: 5Target Port: 13Harbour (config) # Save Configuration
Cisco switch port image Configuration Catalyst 2900xl/3500XL/2950 Series Switch Port image ConfigurationRun the following command to configure a port listener:Port MonitorFor example, F0/1 and F0/2 belong to the same vlan1 and F0/1 Listen to ports F0/2 and F0/2:Interface fastethernet0/1Port monitor fastethernet0/2Port monitor f
A. About stacking technology: How does the 1.Catalyst 3500XL/2900XL stack be implemented?
A. Special tiered cabling is required, 1 m long or 50 cm long (cab-gs-1m or cab-gs-50cm) and a dedicated gigabit stacked card Gigastack GBIC (WS-X3500-XL) (which already contains cab-gs-50cm stacked cables).
B. There are 2 stacking methods available: Daisy Chain (providing 1G of bandwidth) or point-to-point method (2G bandwidth available).
C. 2 ways to do back
reducing the management intensity. For example, the Administrator only needs to use the command switch to upgrade all the vswitches in the cluster.
The benefits of cluster technology to network management are beyond doubt. However, to use this technology, we should note that different manufacturers have different implementation solutions for clusters. Generally, the manufacturers use proprietary protocols to implement clusters. This determines that the cluster technology has its own limitations
the vswitches in the cluster.
The benefits of cluster technology to network management are beyond doubt. However, to use this technology, we should note that different manufacturers have different implementation solutions for clusters. Generally, the manufacturers use proprietary protocols to implement clusters. This determines that the cluster technology has its own limitations. Core Switches of different manufacturers can be cascaded, but cannot be clustered. Only the specified model of the c
Huawei SwitchesCisco CATALYST Switch Port Monitoring Configuration
Cisco catalyst switches are divided into two types, which are called analysis ports in the CATALYST family ).1. Catalyst 2900XL/3500XL/2950 series switch port monitoring configuration (based on CLI)Run the following command to configure a port listener:
Port monitor
For example, F0/1 and F0/2 and F0/5 belong to the same VLAN1 and F0/1 Listen to ports F0/2 and F0/5:
inte
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