Figure
Cisco Catalyst 3550 series smart Ethernet switches are a new type of enterprise-class stackable multi-layer switch that provides high availability, high scalability, and high security, and improves the management capabilities of network operations. With a series of Fast Ethernet and Gigabit Ethernet configurations, the Catalyst 3550 series can serve
:
Switch>
Switch> enable
Switch # conf t
Switch (config) # host 3550
3550 (config )#No ip dolo #This statement may indicate that the statement fails, but does not affect the subsequent results. You can omit it.
3550 (config) # line con 0
3550 (config-line) # noexec-t
3550 (c
For details about how to configure DHCP for a CISCO 3550 switch, refer to some configuration content in this article for comparison and learning. After "ip helper-address dhcp server ADDRESS" according to the configuration described on the Internet, the project finds that the client cannot obtain the ip address from the DHCP server, I recently configured 3550 as
This article describes how to configure a vswitch for a CISCO 3550 router and how to configure access control for a MAC address.
In network management, users often encounter this situation: some users violate management regulations and modify their own IP addresses without permission to access restricted resources. Such behavior not only undermines information security rules, but may also cause network comm
#十二步 Save ConfigurationDestination filename [startup-config]?Building configuration ...[OK]switch#-=--------Switch#reload#重新启动-----------Press RETURN to get started!00:00:14:%spantree-5-extended_sysid:extended sysid enabled for type VLAN00:00:17:%sys-5-config_i:configured from memory by console00:00:17:%sys-5-restart:system restarted--Cisco Internetwork Operating System SoftwareIOS (tm) C2950 software (c2950-i6q4l2-m), Version 12.1 (9) EA1, RELEASE So
In Cisco 3550, dhcp configuration is often discussed on the network, but there are mostly errors and omissions. According to the configuration described on the internet, after "ip helper-address dhcp server ADDRESS, in the project, I found that the client could not obtain the IP address from the DHCP server. I recently configured 3550 as the DHCP server relay pro
Lab Environment:1. Configure two VLAN 10 and VLAN 20VLAN IP address settings: 192.168.10.1 255.255.255.0 (192.168.10.1 is a VLAN 10 gateway address)VLAN IP Address setting: 192.168.20.1 255.255.255.0 (192.168.20.1 is a VLAN 20 gateway address)2. (Windows Server R2 operating system) set up a DHCP server to create two scopes VLAN 10 and VLAN 20,Get the IP address dynamically using VLAN 10 and VLAN 20. The DHCP server NIC accesses the switch FA0/1 port.DHCP server network card settings:ip:192.168.1
Cisco 3550 switch stp learning notes STP (Spanning Tree Protocol) (IEEE 802.1D) Spanning Tree Protocol-review the working principles of SW: 1. the frame it forwards cannot be modified. create a MAC-PORT ing table based on source MAC learning. forward the frames in the target MAC ing table directly from the corresponding port. for frames without target MAC ing/Target wide (Group) broadcasting, SW learns diff
For complete syntax and application information about this chapter, seeCatalyst 3550 Multilayer Switch Command ReferenceAnd Cisco IOS Interface Command Reference For Release 12.1.
Understanding Interface Types
This section describes different interface types and some reference content for configuring these interfaces in detail in other sections. Other sections describe the configuration process of physi
Network Environment: A 3550EMI switch is divided into three VLANs. vlan2 is the network where the server is located and is named server. The IP address segment t-[/[Xm1S3 is 192.168.2.0, subnet mask: 255.255.255.0, Gateway: 192.168.2.1 the Domain Server is windows 2000 advanceserver and serves as a DNS server. The IP address is 192.168.2.10, vlan3 is the network where client 1 is located, the IP address segment is 192.168.3.0, The subnet mask is 255.255.255.0, And the Gateway: 192.168.3.1 is nam
I. Network DescriptionPC1 is connected to Cisco3550 F0/1 at a rate of 1 M;PC1 is connected to Cisco3550 F0/2 at a rate of 2 M;The G0/1 of Cisco3550 is the exit.Ii. Detailed configuration processNote: Each interface supports only one policy in each
I. Network Description
PC1 is connected to Cisco3550 F0/1 at a rate of 1 M;PC1 is connected to Cisco3550 F0/2 at a rate of 2 M;The G0/1 of Cisco3550 is the exit.Ii. Detailed configuration process
Note: Each interface supports only one policy in each
First, network description
The PC1 is connected to the Cisco3550 F0/1 and the rate is 1M;
The PC1 is connected to the Cisco3550 F0/2 and the rate is 2M;
CISCO3550 's G0/1 for export.
Second, the detailed configuration process
Note: Each
3550 dhcp configuration, many discussions on the network, but there are mostly errors and omissions, according to the configuration of an "IPHELPER-ADDRESSDHCP server address", the project found that the client can not get the IP address from the DHCP server, I recently configured 3550 as a DHCP server relay proxy. I was also confused for a long time. Later, I searched for information online and asked for h
our composition:
s=0;t=3*n+1; For1 (I,3*n) a[i]=Read (); Insert (S,1,k,0); Insert (2*n+2,t,k,0); For1 (i,n) Insert (1,i+1,1,-a[i]); For2 (I,n+1,2*n) Insert (i-n+ 1,i+1,1,-a[i]); For2 (I,2*n+1,3*n) Insert (I-n+1,2*n+2,a[i]); For1 (I,2*n+1) Insert (i,i+ 1,inf,0);
You need to figure out in which equation A[i] first appears, the second occurrence in which equation, and what the positive and negative numbers are.
B[i] appears obviously, I is positive, i+1 is negative
Then ask f
The main topic: given a length of 3n interval, the need to select some number, and any length of n interval of the maximum number of k, the maximum number of selected numbersSimplex directly engage inNote that a number can only be selected once, so add xiDo not understand 3n and k#include Bzoj 3550 ONTAK2010 Vacation simplex
/17
Cisco (config-if) # ip access-group 6 in
Cisco (config) # access-list 6 permit 10.138.208.81
In this way, the FastEthernet0/17 port of the vswitch is bound to ip Address: 10.138.208.81.
The most common understanding of port security is to control and manage network traffic based on the MAC address, such as binding a MAC address to a specific port, restrict the number of MAC addresses that a speci
addresses exceeds 100, the switch continues to work, but data frames from new hosts will be lost.
The preceding configuration allows traffic based on the MAC address. The following configuration rejects traffic based on the MAC address.
1. This configuration can only filter unicast traffic in the catalyst switch, but is not valid for multicast traffic.
3550-1 # conf t
3550-1 (config) # Mac-address-
an IGMP exit request, it moves the host port number from the entry of the content addressing memory CAM table.
By supporting hardware IGMP listening and implementing IGMP listening configuration through the Cisco cluster management suite, the Catalyst 2950 vswitch provides excellent performance and ease of use when controlling and managing LAN multicast applications.
Cisco Cluster Management Suite
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