寫寫筆記

先做一下記錄~ http://sysadmin.blog.51cto.com/83876/304152 http://blogat.centilin.com/everything_it/network/routing-and-switching/svi-vs-routed-ports/ http://packetlife.net/blog/2011/jan/24/convergence-delays-svi-vs-routed-interface/

CDP 1.CDP會有安全性的疑慮,建議非必要還是關掉! 2.Data Link Layer, Multicast S2950# show cdp neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge                   S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID Switch           Fas 0/8            145          S I      WS-C3750G- Gig 1/0/9 S2950# show cdp entry Switch ------------------------- Device ID: Switch Entry address(es):   IP address: 192.168.1.150 Platform: cisco WS-C3750G-24T,  Capabilities: Switch IGMP Interface: FastEthernet0/8,  Port ID (outgoing port): GigabitEthernet1/0/9 Holdtime : 131 sec Version : Cisco IOS Software, C3750 Software (C3750-IPSERVICESK9-M), Version 12.2(55)SE9, RELEASE SO                                             FTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2014 by Cisco Systems, Inc. Compiled Mon 03-Mar-14 22:45 by prod_rel_team advertisemen

手上的Cisco 2950 Switch設了密碼，猜了半天也進不去，重開後按Ctrl+Break也無反應，還在懷疑是不是線壞掉的時候，Google了一下.....原來Switch密碼還原和Router完全不同 1. 按住Switch上的Mode鍵，並將Switch開機 2.此時Switch會出現以下訊息，紅字為輸入的文字 C2950 Boot Loader (C2950-HBOOT-M) Version 12.1(11r)EA1, RELEASE SOFTWARE (fc1) Compiled Mon 22-Jul-02 18:57 by antonino WS-C2950-24 starting... Base ethernet MAC Address: 00:0a:8a:c0:52:80 Xmodem file system is available. The system has been interrupted prior to initializing the flash filesystem.  The following commands will initialize the flash filesystem, and finish loading the operating system software:     flash_init     load_helper     boot switch: flash_init Initializing Flash... flashfs[0]: 326 files, 5 directories flashfs[0]: 0 orphaned files, 0 orphaned directories flashfs[0]: Total bytes: 7741440 flashfs[0]: Bytes used: 5598208 flashfs[0]: Bytes available: 2143232 flashfs[0]: flashfs fsck took 8 seconds. ...done initializing flash. Boot Sector Filesystem (

剛裝好ESXi 5.1發現時間一直不對,後來找到這篇可以變更時間 http://communities.vmware.com/message/1989143 雖然我是用PC在測Vmware ESXi,不過效能怎麼會那麼差,點有想不透.... 只有跑Win2008與Win2003而已.....