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): 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
) #interface range F0/1-2 (check 1.2 port number)Switch (config-if-range) #switchport Access VLAN 3 (Connect 1.2 ports to VLAN3)Interface joins VLAN:Switch (config) #interface fastethernet 0/1 (enter Port 1th)Switch (config-if) #switchport Access VLAN 2 (Configure the 1th interface into vlan2)Trunk Trunk Link:Implement VLAN communication across switchesTrunk links can host multiple VLANsIdentity of the VLAN
With the development of China's routing industry, we have also promoted the update and upgrade of the routing switch technology. Here we have introduced the IOS restoration method of the Cisco routing switch, and we have tried one method, after Flash is deleted, the system cannot be started. You can use X-Modem to restore it. At that time, I accidentally deleted
) -------------------------------------------------------------------------------- Add Catalyst 5002 to the domain You need to add Catalyst 5002 To The VTP management domain named cisco and set it to VTP client. It will receive VTP configurations and updates from the VTP server. Note: by default, the Catalyst 5000 series switches are VTP servers. Cat5002> (enable) Cat5002> set vtp domain cisco mode client T
Experimental topology Router (config) #frame-relay switching to simulate a router as a Frame relay switch Router (config) #inter S1/1 Router (config-if) #clock rate 128000 Router (config-if) #encapsulation Frame-relay Configuration Interface encapsulation and binding relay The default Frame relay enabled on the interface is encapsulated in the Cisco package and, if connected to a non-
Tags: Cisco MDS zone san Configure a Cisco MDS Optical Fiber storage switch (MDS multilayer Director Switch multi-layer optical fiber array switch)General process: 1: Create a vsan, add the port to vsan2: create a zone, add the port to zone3: Create a zoneset, add the zon
with option 82 from the L2 switch and establish binding entries for the information . Of course, if you encounter the switch does not support IP DHCP snooping information option allow-untrusted command can have the following two solutions:① using the IP DHCP relay information trusted(in-VLAN) command within an int VLAN of an unsupported switch② on the access l
Recently, the OS of a vswitch is old, so I want to update it. I want to ask a user to update the OS. After updating the OS, the problem occurs, I have a password for the OS. Since the password is being used and it is difficult for them to ask for it, I am ready to clear the password. After finding the relevant article on www.cisco.com, cleared successfully. Write down the cleanup process. Let's talk about the configuration environment first, the switch
Cisco Catalyst Switch configuration and maintenance method. Today's Catalyst Switch topic discusses the introduction of the History st6000 series and the introduction of the Catalyst Switch 5000 Series. There is no difficulty. Hurry into the Wireless World. LAN switches have evolved from a HUB-based LAN shared in the t
High intelligence, high availability, and high reliability are the characteristics of multi-layer intelligent optical fiber switch. Although its technology is not very mature yet, it has been recognized by people. Cisco Systems recently announced that it will launch the CiscoMDS9100 series of multi-layer smart Optical Fiber switches this fall to meet the needs of small and medium-sized enterprises for deplo
The port rate between switches and switches, between switches and routers, does not meet the actual rate and requires tying more than two ports together to load balance and prevent single points of failure.1. Select Switch SW2960 to configure the F0/1 and F0/2 port modes to truck#conf Terminal into privileged mode#interface Range Fa0/1–2 used to bind a set of ports and enter the port batch configuration view Figure#switchport mode truck will figure p
Hostname Public-wanLogging Buffered 65536Service Timestamps Debug datetime localtimeService Timestamps log datetime localtimeService Password-encryptionNo IP domain-lookupVTP mode TransparentEnable Secret publicerrdisable recovery Cause Pagp-flaperrdisable recovery Cause Link-flaperrdisable recovery cause loopbackerrdisable recovery Cause Bpduguarderrdisable recovery interval 30Port-channel load-balance Src-dst-ipVLAN 8Interface Vlan1ShutdownInterface
Cisco Catalyst 6500 Series Switch Denial of Service Vulnerability (CVE-2015-0771)Cisco Catalyst 6500 Series Switch Denial of Service Vulnerability (CVE-2015-0771) Release date:Updated on:Affected Systems: Cisco catalytic 6500 Description: Bugtraq id: 75063CVE (CAN) ID:
drwx 4096 Feb 2018 00:59:14 +00:00 Core54209 drwx 4096 2018 00:55:52 +00:00 Prst_sync69697 drwx 4096 2018 00:55:53 +00:00 Rollback_timer77441 drwx 4096 Jul 2018 02:09:22 +00:00 Dc_profile_dir77443 drwx 4096 Feb 2018 00:56:02 +00:00 Gs_script15499-rw-65301 Jul 2018 02:09:39 +00:00 MEMLEAK.TCL15500 drwx 4096 2018 00:56:31 +00:00 Installer15502-rw-2097152 Jul 2018 02:12:32 +00:00 Nvram_config15503-rw-2097152 Jul 2018 02:12:32 +00:00 Nvram_config_bkup15504-rw-35 Jul 2018 06:29:18 +00:00 Pnp-tech-ti
Pen name is also large, commonly known as the small gameRecently work has become a little different, received their own network engineers exam is almost 2 doors are nearly point on the heart has a lot of depressed and lost, may be doomed to let me have a good reflection on it, for this today self-study review of the past Cisco Cisco Simple Foundation.Cisco commands and H3C are far apart, recalling that
Lab Environment:650) this.width=650; "alt=" Cisco Packet Tracer three-layer switch interrupt Dhcp-ibm.chick-mingkang.zhou "src=" http://img0.ph.126.net/4fx 93s0ahtpaead19pxmyg==/6619563575538146055.jpg "style=" border:0px;height:auto;margin:0px 10px 0px 0px; "/>Experimental Purpose:1, the VLAN is divided on the three layer switching: vlan10\vlan100\vlan200, and the IP is specified as: 192.168.10.254\ 192.16
Cisco switch password settings www.2cto.com 1. set console password> enable # configure trminal (confing) # line console 0 secure console port ① (config-line) # password (cisco) Secure password (config-line) # login logs must not be small. console Password settings complete exit 2: set the global password www.2cto.com enadle # configure terminal ② (config) # enab
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
Switch Password settings: Switch>enable into privileged mode Switch#config terminal into global configuration mode Switch (config) #hostname set the host name of the Exchange Switch (config) #enable secret XXX To set the privi
In Cisco networks, there are four main types of interfaces in the final stable state of a switch in a LAN: Access/trunk/multi/dot1q-tunnel.1, Access: Mainly used to access terminal equipment, such as PC, server, print server and so on.2, Trunk: Mainly used to connect other switches, in order to host multiple VLANs on the line.3. Multi: Hosts multiple VLANs in one line, but unlike trunks, it does not label t
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