underruns Description: The number of times that the transmitter has been that run faster than the switch can handle. Common Causes: This can occur in a high throughput situation where an interface is hit with a high volume of bursty traffic from many other interfaces all...
connection is established through an mGig port at 1Gbps, if traffic bursts higher than the bandwidth of the interface, the C9600 utilizes port buffers to accommodate that excess traffic and dynamically decreases the IFG/IPG size to avoid any impact and ensure traffic throughput...
Hello, I've notice a few ports on some of our switches have input errors, CRC's, Collisions etc. Rather than me manually view each interface on a switch from time to time, what options do I have? Can this info be pumped to a syslof server or are there free too...
--- ...show interfacescommand output continues.1117058 packets input, 78283238 bytes, 0 no buffer Received 1117035 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condit...
switch# 02进入全局配置模式configure terminal switch>enable switch#configureterminal switch(conf)# 03交换机命名hostname aptech2950以aptech2950为例 switch>enable switch#configure terminal switch(conf)#hostname aptch-2950 aptech2950(conf)# 04配置使能口令enable password cisco以cisco为例 ...
Switch> (enable)sh port status 3/1Port Name Status Vlan Duplex Speed Type --- --- --- --- --- --- --- 3/1disabled1 auto auto 10/100BaseTX!--- Theshow port status {mod/port}command show the port is disabled. !--- Use theset port enable {mod/port}command to try and ...
Switch(config)#do show vlan VLAN 中继协议 (VTP) 可简化交换网络中的管理。在一台 VTP 服务器上配置新的 VLAN 时,该 VLAN 将通过域中的所有交换机进行分发。这样可以减少在各处配置相同 VLAN 的需求。VTP 是一种 Cisco 专有协议,适用于大多数 Cisco Catalyst 系列产品。 当删除一个处于VTP服务器的交换机...
Switch(config)#hostname SW1 SW1(config)#int range f0/1 -2 SW1(config-if-range)#channel-group 1 mode desirable SW1(config-if-range)# Creating a port-channel interface Port-channel 1 %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down ...
switch security.rar 二层安全: 一、MAC layer attacks 攻击方法: 1、MAC地址flooding攻击 2、MAC地址的欺骗攻击 解决方案: 1、基于源MAC地址允许流量:端口安全 2、基于源MAC地址限制流量:static CAM 3、阻止未知的单/组播帧 4、802.1x基于端口的认证 二、VLAN attacks 解决方案: 1、switch mode access 2、VACL...
Active Manager is an Exchange 2010 component, which manages switchovers and failovers. Active Manager runs on every server in a DAG. From a planning perspective, you should try to minimize the number of DAGs deployed. You should consider more than one DAG if: You deploy more than 16 Mail...