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Two methods for communication between different VLANs (single-arm routing and layer-3 Switching)Test environment: Third data center, second floor, east suburbInvestigational device: Catalyst 2950-24 (SW3)Cisco 2611 (R2)Catalyst 3750 SERIES (with two SD interfaces, S8----SW-2L)Real machine (PC5, PC6 ).Objective::1. Communication between different VLANs through sin
(Single-arm routing, three-layer switching)test Environment: second floor of Eastern suburbs third roomTest Equipment: Catalyst 2950-24 (SW3)Cisco 2611 (R2)Catalyst 3750 SERIES ( with two SD interfaces,S8----sw-2l) Real Machine (PC5,PC6).Purpose of Test:1 , the communication between different VLANs is realized through one-arm routing2 , the communication between
Bkjia.com exclusive Article: HSRP (Hot Standby Router Protocol) Hot Backup Router Protocol, that is, multiple routers form a "Hot backup group" and simulate a virtual Router, the virtual router has a virtual IP address and a virtual MAC address. In a hot backup group, only one vro forwards data packets as the active router. Only when the active router fails will a backup router be selected as the active router. However, for hosts in the network, the vro has not changed and will not interrupt the
I. test requirements XX enterprises currently require the use of Aruba devices for stable wireless network coverage and security assurance. To ensure security, XX enterprise requires the Aruba device to establish two wireless SSID, one SSID is CA, and the user initially connects to the CA for certificate application (the user is in vlan 710 ), you are not authorized to access other networks. The other SSID is "Employee", which is a normal business SSID. the user is required to use certificate au
3750 configuration: 3750 # conft3750 (config) # intf0153750 (config-if) # switchportmodetrunk3750 (config) # end3750 # vlandatabase3750 (vlan) # vtpserver3750 (vlan) # vtpdomainsy3750) # vtppasswordcisco3750 (vlan) # vlan103750 (vlan) # vlan2037 3750 configuration: 3750 # conf t 37
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, X
802.3AF supports two modes of power supply, 1236 or 4578. Supports 5 power supply levels: 0: Default 15.4W 1:4w 2:7w 3:15.4w 4: Not defined, extended use. Cisco's previous Ethernet power was 6.3W Cisco's previous Ethernet ┑ paragraph 跞, lt;br/>power panel uses 45, 78 power. The inline power uses 12, 36, and needs to be combined with CDP. Full support for 802.3AF products are as follows: Catalyst 6000 Platform: Ws-x6148-45af Ws-x6148-21af
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,
the following: Only the Fast Ethernet hybrid network module can support these two wan interface cards. The network modules supporting these two interface cards are as follows: NM-1FE2W, NM-2FE2W, NM-1FE1R2W, NM-2W. The Ethernet hybrid network module does not support the following features: NM-1E2W, NM-2E2W, NM1E1R2W. 19. What is the maximum rate of synchronization supported by Cisco3600 series routers (4A/S, NM (8A/S network module and WIC (2A/s wan Interface Card? These network modules and WAN
support inter-VLAN routing? What are the requirements for IOS software?In Cisco (2600 series routers, only Cisco2620 and Cisco2621 support inter-VLAN routing (MB ports support inter-VLAN Routing ). If Inter-VLAN routing is supported, IOS software must include the IP Plus feature set.6. What are the differences in hardware between the Cisco3660 router and the 3620/3640 router?The differences are as follows:* The basic configuration of the Cisco3660 router includes one or two 10/100 M Adaptive Fa
Comprehensive example of configuring layer-3 Switching This configuration has no problems. As long as you can understand and remember the key commands, I believe you have a deeper understanding of Layer 3. **************************************** ************************ Basic Network Conditions The network topology is as follows: the center switch uses Cisco Catalyst 4006-S3, Supervisor Engine iii g Engine is located in 1st slots for layer-3 swit
Basic information of the network The network topology is: The central switch uses Cisco Catalyst 4006-s3,supervisor Engine III G engine in the 1th slot, for three-layer exchange, 1 24-Port 1000base-t module in the 2nd slot, for connecting to the network server; The 1 Block 6 Port 1000base-x module is located in the 3rd slot for connecting 6 backbone switches. One switch uses Cisco Catalyst 3550-24-emi and
LAN switches have evolved from a HUB-based LAN shared in the traditional sense to a broader space. Take Cisco's Catalyst 5000 Series LAN switch as an example. It includes an integrated switching hardware structure, 10-Mbps Ethernet that supports switching, and-Mbps Fast Ethernet, supports fast Ethernet, FDDI, exchange-type ring, and layer-3 switching processing. This type of switch can provide exchange access to workstations, servers, network segments
supports hot swapping of network modules, while Cisco3620/3640 does not support hot swapping of network modules. * The Cisco3660 redundant power supply is built in, while the Cisco3620/3640 redundant power supply is external. 24. Why 3640 cannot identify NM-1FE2W? Upgrade IOS to 12.0.7T Vswitch Problems About vswitches: 1. How is the stacking of Catalyst 35500XL/2950XL implemented? A. dedicated stacked cables, 1 m long or 50 cm long (CAB-GS
built-in, while the cisco3620/3640 redundant power supply is external. 30, why 3640 does not recognize nm-1fe2w? Need to upgrade iOS to 12.0.7T About switch Issues: 31. How is the stack of Catalyst 35500XL/2950XL implemented? A. A dedicated stacking cable is required, 1 m long or 50 cm long (cab-gs-1m or cab-gs-50cm) and a dedicated gigabit stacking card Gigastack GBIC (WS-X3550-XL) with cab-gs-50cm stacking cable. . There are 2 stacking method
routers support inter-VLAN routing? What are the requirements for IOS software? In Cisco (2600 series routers, only Cisco2620 and Cisco2621 support inter-VLAN routing (MB ports support inter-VLAN Routing ). If Inter-VLAN routing is supported, IOS software must include the IP Plus feature set. 29. What are the differences in hardware between the Cisco3660 router and the 3620/3640 router? The differences are as follows: * The basic configuration of the Cisco3660 router includes one or two 10/100
Cisco 2600 series router support inter-VLAN routing? What are the requirements for iOS software?In Cisco (2600 series routers, only cisco2620 and cisco2621 support inter-VLAN routing (MB ports support inter-VLAN Routing ). If Inter-VLAN routing is supported, IOS software must include the IP plus feature set.6. What are the differences in hardware between the cisco3660 router and the 3620/3640 router?The differences are as follows:* The basic configuration of the cisco3660 router includes one or
network updates.In addition, the development of MPLS technology and the gradual maturity of fast self-healing STP technology make ethernet technology even more powerful and can provide users with different QoS network services, in addition, the Ethernet technology has the characteristics of low networking cost and simple network expansion. The Metro Ethernet technology is favored by major carriers in China. In the next two years, the maximum speed of Ethernet may reach 40 Gb/s, and the developm
, some devices in the network can be found to be abnormal data communication. For example, a device sends packets over multiple IP addresses. In this case, you can use the show mac-address-table command to view the switch port it uses, and you can turn off this port. But what if this port is connected to a hub and the hub is connected to many other devices? One way is to filter data from a router or switch using MAC address filtering. Here is an example: Cat3750Switch(config)# mac access-list
Overview of LAN switches LAN switches have evolved from a HUB-based LAN shared in the traditional sense to a broader space. Take Cisco's Catalyst 5000 Series LAN switch as an example. It includes an integrated switching hardware structure, 10-Mbps Ethernet that supports switching, and-Mbps Fast Ethernet, supports fast Ethernet, FDDI, exchange-type ring, and layer-3 switching processing. This type of switch can provide exchange access to workstations,
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