How to upgrade\downgrade NX-OS on Cisco Nexus 5000 Switches

The procedure to upgrade/downgrade the NX-OS code on a Nexus 5000 series switches is very easy and it is almost same as for normal IOS. First go to the downloads section on and get the new version of the System software and Kickstart image. A CCO login is required for download NX-OS images. Next access the device, check the available free space in bootflash using dir bootflash: command and delete old NX-OS images if there is no sufficient space in bootflash. Nexus5500# dir bootflash: 744 Apr 20 02:08:48 2011 license_SSI15100AW7_10.lic 49152 Apr 20 02:11:45 2011 lost+found/ 1586 Nov 10 11:47:20 2011 mts.log 25136128 Apr 20 02:01:51 2011 n5000-uk9-kickstart.5.0.3.N1.1b.bin 188700150 Apr 20 02:02:52 2011 n5000-uk9.5.0.3.N1.1b.bin 4096 Jan 01 02:05:55 2009 vdc_2/ 4096 Jan 01 02:05:55 2009 vdc_3/ 4096 Jan 01 02:05:55 2009 vdc_4/ Usage for bootflash:// 331591680 bytes used 1319313408 bytes free 1650905088 bytes total Next upload the new code […]

Most Useful Channelized E1 and Channelized T1 Configuration Commands

Most Useful Channelized E1 and Channelized T1 Configuration Commands Table of Contents Channelized E1 and Channelized T1 Setup Commands autodetect encapsulation cas-group (controller e1) cas-group (controller t1) channel-group clear controller clock source (controller) clock source (Cisco AS5200) controller cpp authentication cpp callback accept description (controller) description (interface) dialer outgoing dialer voice-call encapsulation cpp framing interface serial isdn answer1, isdn answer2 isdn caller isdn calling-number isdn fast-rollover-delay isdn incoming-voice data isdn not-end-to-end isdn sending-complete isdn switch-type linecode loopback (controller) loopback local (controller) loopback local (interface) loopback remote (controller) loopback remote (interface) map-class dialer pri-group show controllers e1 show controllers t1 show interfaces serial bchannel show isdn   Channelized E1 and Channelized T1 Configuration Commands This chapter describes the function and displays the syntax for channelized E1 and channelized T1 setup commands. For more information about defaults and usage guidelines, see the corresponding chapter of the Dial Solutions Command Reference. autodetect encapsulation To […]

ITIL V3 Certification Books Free Download

ITIL (Information Technology Infrastructure Library) is the best practices that can be followed in IT Service Management (ITSM) for identifying, planning, delivering, efficient running and supporting IT services to the business. Benefits of ITIL Process By using ITIL can offer users a huge range of benefits that include: improved IT services reduced costs improved customer satisfaction through a more professional approach to service delivery improved productivity improved use of skills and experience Improved delivery of third party service. It is a set of five books which covers the stages of life cycle of ITSM. I have been looking for these books since long time and at last I am able to find them. I would like to share these with the world. Download ITIL V3 Books Download all ITIL V3 books from here: Service Life cycle-Introduction to ITIL ITIL v3-Service Strategy ITIL v3-Service Design ITIL v3-Service Operation ITIL v3-Service Transition ITIL v3-Continual Service Improvement Or […]

How to create a Tunnel interface and configure between Cisco Routers

Create and Configure a Tunnel Interface on Cisco Router  You can create a Tunnel interface on Cisco Router and establish a Tunnel between two locations. Tunnel between two location Routers are useful for load sharing on WAN links or Resources. Below I will share the Tunnel configuration on Cisco Router at both ends to establish a tunnel. Create a Tunnel Interface on Cisco Router Cisco-Router(config)#interface tunnel ? <0-2147483647>  Tunnel interface number Cisco-Router(config)#interface tunnel Tunnel Configuration at A end Cisco Router: interface Tunnel100 description ***Tunnel to B location *** ip address keepalive 5 4 tunnel source tunnel destination ! interface Fastethernet 0/0 description *** Tunnel  Source Interface *** ip address secondary ip address ip accounting output-packets ip pim dense-mode ip route-cache flow ! Tunnel Configuration at B end Cisco Router: interface Tunnel104 description ***Tunnel to  A Location **** ip address keepalive […]

Download Top 5 Wireless HotSpot Software for Windows

These days, everyone having two or more internet-connected devices (e.g.,PC, laptop and your phone), but it is not possible to take as much as Connections for all devices. Luckily, you can rectify this injustice by using your laptop as WI-FI hotspot. By using readily available technology anybody can create a Hotspot and offer access to all wireless enable devices, customers and neighbors within range of their wireless network. Here we have some popular methods which make your laptop as WI-FI hotspot. 1.Connectify Connectify hotspot is an easy to use software router for Windows computers that utilizes your PC’s built in Wi-Fi card to wirelessly share any available Internet connection including Local Area Connection or 3G/4G Data cards with friends, co-workers, and mobile devices. You can down load this from install in your PC fallow the below mentioned easy steps to make your laptop as WI-FI hotspot. Set your desired Hotspot […]

How to configure DHCP Option 43 for Cisco Lightweight Access Points

In this post I covered the DHCP Option 43 configuration steps for Cisco Aironet lightweight access points. The DHCP Option 43 is for add a Wireless LAN Controller IP address in DHCP server, after that Cisco Aironet lightweight access points will get a both IP address details and WLC IP address from DHCP server. This includes the DHCP Option 43 configuration for 1000, 1100, 1130, 1200, 1240 and 1300 series Cisco Aironet Access Points. We can configure the IP DHCP Server on Cisco Router or L3 Switch, we can add the DHCP Option 43 configuration in Cisco IOS DHCP server for use with Cisco Aironet lightweight access points. You can also configure DHCP Option 43 on Microsoft, Sun Solaris, Linux, and Lucent QIP DHCP servers. In DHCP Option 43, you should use the IP address of the WLAN controller management interface. DHCP Option 43 is limited to one access point type per DHCP […]