TE was the main driver and reason for MPLS invention. To utilize bandwidth of unused links, to have flexibility in path selection just like previous WAN switching technologies. To create Virtual circuits on top of IP networks. IP Routing is performed hop by hop and you can not dictate a policy to other hops. TE [...]
Archive for the ‘WAN Technologies’ Category
7 Oct
LS1010 ATM Switch
Yesterday, one of my friends after reading my MPLS post, called me to ask about Cisco Light Stream 1010 multiservice ATM switch configuration. LS1010 is the first member of Cisco midrange Asynchronous Transfer Mode (ATM) switches for multiservice applications that will span from 5 to 40 Gbps, providing services optimized for both cell and packet-based [...]
5 Oct
PPPoE
The reason behind using PPP over other data link layer protocols is Authentication capability of PPP (and of course accountability) and multi-link feature that allows us to bundle several links into a virtual unit. Main reasons of using PPP: Authentication and AAA features PPP Multilink feature Dynamic address allocation (IPCP) PPPoE combines two standards, Ethernet [...]
20 Dec
Why WAN Acceleration?
It’s not a long time that Cisco has introduced its WAAS solution, which stands for Wide Area Application Services, It plays with TCP window size, and using labels for minimizing duplicate/redundant data inside IP packets acting like a compression mechanism. WAN Acceleration is all about TCP applications, on a basic TCP setup between a server and [...]
24 May
CCIE LAB – PPPoFR
PPP over Frame Relay Frame Relay does not natively support features such as authentication, link quality monitoring, reliable transmission, and especially Multilink. Virtual-Template is always running PPP so no need for encapsulation ppp. Configuration Example interface Virtual-Template1 ip address 54.1.7.6 255.255.255.0 ppp chap hostname ROUTER6 ppp chap password 0 CISCO ! interface Serial0/0 encapsulation [...]
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