Multi-exit discriminator (MED) is advertised to external neighbors to try to influence path selection into an AS. For instance, consider a case where there are redundant links to an ISP and you want traffic to flow across the higher bandwidth path. Weight or LP could be used to control how local routers send traffic out of the AS, but external neighbors do not receive this information. A lower MED could be set on one path, indicating to your neighbors that they should reply o..
MPLS Label Switching with Label Stack
The label switching operation is performed in the same way regardless of whether the labeled packet contains only one label or a label stack several labels deep. In both cases, the LSR switching the packet acts only on the top label in the stack, ignoring the other labels. This function enables a variety of MPLS applications where the edge routers can agree on packet classification rules and associated labels without knowledge of the core routers. For example, assume that the..
Configuring the Pure Point-to-Point Network
If there are many VCs, there might not be enough bandwidth at the access speed of the interface to support the aggregate EIGRP traffic. The subinterfaces should be configured with a bandwidth that is much lower than the real speed of the circuit. In this case, it is necessary to use the bandwidth-percent command to indicate to the EIGRP process that it can still function. The ip bandwidth-percent-eigrp command adjusts the percentage of capacity that EIGRP may us..
Basic Security on Cisco Routers
You can access a Cisco router in a number of ways. You can physically access a router through the console port, or you can access a router remotely through a modem via the auxiliary port. You can also access a router through a network or virtual terminal ports (vty lines), which allow remote Telnet access. If you do not have physical access to a routereither through a console port or through an auxiliary port via dialupyou can access a router through the software interface, ..
LFI is part of Cisco's QoS features and solutions for addressing the diverse requirements of voice, video, and data applications on the network. Interactive and real-time delay-sensitive traffic, such as voice, is susceptible to increased latency when it is transported together with normal data traffic. In many situations, the latency issue can become critical, especially when the real-time traffic is delivered over slow bandwidth links. On these slower bandwidth links, the n..
