Cisco quits WiMax radio business
WiMAX, meaning Worldwide Interoperability for Microwave Access, is a telecommunications technology that provides wireless transmission of data using a variety of transmission modes, from point-to-multipoint links to portable and fully mobile internet access. The technology provides up to 10 Mbps broadband speed without the need for cables. The technology is based on the IEEE 802.16 standard (also called Broadband Wireless Access).
The bandwidth and range of WiMAX make it suitable [...] Continue Reading…
Popularity: 16% [?]
IP Multicast Gotchas
Denise Fishburne discusses repeat problems in IP Multicast. Learn about the foundation protocols of Multicast and Cisco Press’ Multicast Video Mentor.
Excellent presentation. Exactly like she said, for many of network engineers, even for those with a lot of knowledge and experience, Multicast is the “big bad wolf”.
Source: InformIT
Popularity: 4% [?]
Cisco: CUCM DoS Vulnerabilities
Cisco Unified Communications Manager (formerly Cisco CallManager) contains multiple denial of service (DoS) vulnerabilities that if exploited could cause an interruption of voice services. The Session Initiation Protocol (SIP), Skinny Client Control Protocol (SCCP) and Computer Telephony Integration (CTI) Manager services are affected by these vulnerabilities.
To address these vulnerabilities, Cisco has released free software updates for select Cisco Unified Communications Manager versions. There is a workaround for of one [...] Continue Reading…
Popularity: 4% [?]
OSPF: Area range vs Summary address
It seems like an easy one! I mean what could be so hard about area range and summary address command? You will be surprised how many people tend to forget this things or to apply them when not necessary or even worst where is their place to be added. It’s basic knowledge, but sometimes exactly this basic knowledge give us headache.
In the following line, I will try to explain [...] Continue Reading…
Popularity: 10% [?]
