c2960s 24ps l

ARP problems caused by C2960S tftpEnvironment: 1. management HOST: win7 (ip: 192.168.90.24/24) 2. vswitch: 10.108.0.5/24 model: C2960S (sw_ver: 15.0 (2) SE6) symptom: log on to the vswitch one day for debugging, save the configuration to the local machine tftp, and continue with some other operations, suddenly disconnected from the vswitch, the local machine can no longer Ping the vswitch. Handling process:

Company a device, Ws-c2960s-24ts-l, is the Cisco 24 Port 1000M Two layer Exchange Yang, the use of iOS version of 12.2 (UNIVERSALK9-M) iOS software, the company recently installed some digital cameras, The monitoring host and a billiard-type monitoring to the machine, the interface of the transmission rate is much larger than the rate of ordinary office, the following is the rate of the two interfaces I copied.G1/0/3 (Monitoring host interface)5 minut

method (add four lines) let the history command automatically record the execution time of all shell commands and edit the/etc/bashrc file:HISTFILESIZE = 4000 HISTSIZE = 4000 HISTTIMEFORMAT = '% F % t' exportHISTTIMEFORMAT Here, HISTFILESIZE is defined in. the total number of records stored in the bash_history file. The default value is 1000. Set this parameter to 4000. HISTSIZE defines the total number of records output by the history command. HISTTIMEFORMAT defines the time display format, th

int value in the Interface tab, view the OID value of the port on the current switch, and then use the OID value in Zabbix to monitor the switch port.The ports and OID values for Cisco switches are listed here1. C3750E PortIfinoctets #进口流量1.3.6.1.2.1.2.2.1.10. Ifoutoctets #出口流量1.3.6.1.2.1.2.2.1.16. 1 Vlan15179 StackPort15180 stacksub-st1-15181 Stacksub-st1-210101 GIGABITETHERNET1/0/110102 GIGABITETHERNET1/0/210103 GIGABITETHERNET1/0/310104 GIGABITETHERNET1/0/410105 GIGABITETHERNET1/0/510106 GIG

1. Pre-Preparation for upgrade LAP1142 :because LAP1142 cannot obtain an IP address, the console line is connected to the AP , and an error is reported, the log is as follows :*mar 1 00:00:44.491:%cdp_pd-2-power_low:all radios disabled-negotiatedws-c2960s-48lps-l (34bd.c8bc.5401)*mar 1 00:00:50.422:%capwap-3-errorlog:not sending discovery request apdoes not having an Ip!!*mar 1 00:01:00.422:%capwap-3-errorlog:not sending discovery request apdoes not h

. Operation on core switch C3560-24PS) Switch> en Switch # conf Switch # configure Starting ing from terminal, memory, or network [terminal]? Enter configuration commands, one per line. End with CNTL/Z. 1) No device named here. Enable the telnet user password. Switch (config) # line vty Switch (config) # line vty 0 4 Switch (config-line) # login % Login disabled on line 66, until 'Password' is set % Login disabled on line 67, until 'Password' is set

Step 1: ensure that the stack environment 1. the IOS version must be the same 2. The stack line connection is correct Step 2: Start the MASTER you think. Note that other devices cannot add points at this time. Wait for the MASTER to load IOS, and the wait other stack switces boot process will appear at the same time. In this case, you can power up other devices. Step 3: After the device is successfully stacked, view the MOOD panel in front of the device, click to move it to the stack, view the

such as the Cisco 2960x-24ps-l (24,000 Gigabit Port 4,000 gigabit), forwarding bandwidth 108Gbps, switching bandwidth 216Gbps, packet forwarding rate 71.4Mpps, according to the non-clogging line speed forwarding to calculate, exchange capacity of 2*28*1gbps=56gbps, The nominal 216Gbps is much higher than this, why? Is it due to the different design of the switch matrix? How did he figure out the 216Gbps? Again, for example: its packet forwarding rate

,Third, the pictureImage processing, especially on the mobile side, is a challenging issue for the front end. Image size affects the page loading speed one of the important factors. I'll just make a little description of the picture on the HTML mobile page.HTML Mobile page Picture description:(1) Width of full-screen content picture of the actual width of 640pxWhy is 640px?In mobile phone, according to different resolution of various devices, the response interval is "0-640px", flat response zon

Filters and Smart Filters 50:00Lesson 20 Layer Channel use 45:52PS Automatic Processing 50:41Design and production of PS (i) 47:13Design and production of PS (II.) 45:26Design and production of PS (iii) 52:20PS Design and Production (Thu) 45:24PS Test paper ExercisesLesson 27 Guest Teacher Live doubt time release notice, pending releaseThe 2nd Chapter color/Plane compositionLesson 28 composing the design of the universe 09:56Lesson 29 Magical Symbol

four lines through the following method) let the history command automatically record the execution time of all shell commands and edit the/etc/bashrc file: HISTFILESIZE=4000 HISTSIZE=4000 HISTTIMEFORMAT='%F%T' exportHISTTIMEFORMAT Here, HISTFILESIZE is defined in. the total number of records stored in the bash_history file. The default value is 1000. Set this parameter to 4000. HISTSIZE defines the total number of records output by the history command. HISTTIMEFORMAT defines the

Lab Environment:Routers make Tp-link set up NAT forwarding, Tp-link router gateway is set to 192.168.30.254 ( core layer) Cisco 35,503 layer switch (model C3550-I5Q3L2-M) configuration three Vlan,vlan 10, VLAN 20, and VLAN 30IP address for VLAN 10:192.168.10.1/24IP address for VLAN 20:192.168.20.1/24FA0/24 ports are configured as trunk port-level converged layer Cisco 2960 switch FA0/24 ports through VLAN 10 and VLAN 20IP address for VLAN 30:192.168.30.1/24 is mainly used for connecting with Tp

/0/5 10106 GIGABITETHERNET1/0/6 10107 GIGABITETHERNET1/0/7 10108 GIGABITETHERNET1/0/8 10109 GIGABITETHERNET1/0/9 10110 GIGABITETHERNET1/0/10 10111 GIGABITETHERNET1/0/11 10112 GIGABITETHERNET1/0/12 10113 GIGABITETHERNET1/1/1 10114 GIGABITETHERNET1/1/2 10115 GIGABITETHERNET1/1/3 10116 GIGABITETHERNET1/1/4 10201 TENGIGABITETHERNET1/1/1 10202 TENGIGABITETHERNET1/1/2 14501 Nul

value in the Interface tab, view the OID value of the current switch's port, and then use the OID value to monitor the switch port in Zabbix. Here is a list of the ports and OID values of several Cisco switches 1, c3750e Port Ifinoctets #进口流量1.3.6.1.2.1.2.2.1.10. Ifoutoctets #出口流量1.3.6.1.2.1.2.2.1.16. 1 Vlan1 5179 StackPort1 5180 stacksub-st1-1 5181 Stacksub-st1-2 10101 GIGABITETHERNET1/0/1 10102 GIGABITETHERNET1/0/2 10103 GIGABITETHERNET1/0/3 10104 GIGABITETHERNET1/0/4 10105 GIG