Problem with CIsco WLC and AIR-AP1231G

Recently I met problem with old Cisco AP (model AIR-AP1231G). The problem was in the connection between WLC and AP. The procedure with new LWAPP\CAPWAP AP look like this: – AP with factory ios for autonomy work try to find WLC when loading; – if AP did not find WLC, it stays to live like … Continue reading »

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Cisco is continuing to attempt save your position at market with help of increase amount and quality readily available information about their technologies and decisions. Recently it opened portal CiscoLive!365, where you can found all presentations from Cisco Live! events for last years. This information is so fine cataloged for level of readers, technologies, products, … Continue reading »

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New “private” network

Good news for service providers that faced with issue of necessarily NAT from client network to client network, from client network to provider network and etc. They faced situations where networks from RFC 1918 is not enough. The new RFC 6598 wants to help them and defines new “private” network, that can be used … Continue reading »

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CCIP retired

It is continuation of last post (about CCNP SP). Cisco thought that CCIP (and almost of all its exams) outdated. The new certification (CCNP SP) was came, so you can take CCIP till October 29 2012 only, BGP, MPLS (and MPLS+BGP) exams could be passed till July 27 2012. It is not so bad news … Continue reading »

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New Cisco Certification – CCNP® Service Provider

Cisco has been announced the new certification of Professional level. You have to pass 4 new exam – service provider routing (642-883 SPROUTE), service provider advanced routing (642-885 SPADVROUTE), service provider Next-Generation Core Network Services (642-887 SPCORE), Next-Generation Egde Network Services (642-889 SPEDGE). Also, you must be CCNA SP to have possibility pass this exam. … Continue reading »

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IRF from HP and other technologies for unified data center

I heard that HP has technology like Qfabric from Juniper or Fabric Extender from Cisco. It is IRF. You can read some things about these technologies in the Pepelnjak`s blog, but I allow myself to make short description about it.

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F5 3600 BIG-IP LTM redundancy

I recently tested this balancers (two – cause redundancy). I liked these devices, especially for iRules functionality. But I strongly disappointed about his realisation of redundancy (Active-Standby). If we want to determine what device from redundancy couple should be active, after reboot this “active” device redundancy scheme don’t work correctly. From tests with traffic dump … Continue reading »

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