RIP version 2 has been modified without drastically changing the protocol. This section discusses a few of the enhancements to RIP provided for demand circuits, such as an ISDN or async connection. NOTE A demand circuit is a connection that is not in use for normal packet forwarding. It provides redundancy and cost savings. This is essentially a backup connection that is used only in the case of primary link failure. In today's internetworking envi..
802 1x Port-Based Authentication Example
In Example 16-4, two RADIUS servers are located at 10.1.1.1 and 10.1.1.2. Switch ports Fast Ethernet 0/1 through 0/40 will use 802.1x for port-based authentication. When authenticated, the end users will be associated with VLAN 10.
Verifying Adaptive Frame Relay Traffic Shaping for Interface Congestion
In Example 9-1, the frame-relay adaptive-shaping interface-congestion 10 map-class configuration command is configured under the Frame Relay map class named FRTS on R2. The map class FRTS is attached to switched DLCI 200 under interface serial3/1. The queue depth is chosen to be 10 packets. The show frame-relay pvc command can be used to verify that Adaptive Frame Relay Traffic Shaping for Interface Congestion is enabled for the DLCI. This is shown in Example 9-2. Example 9..
A Common Issue Encountered in Frame Relay Networks
This section looks at a common issue encountered during the implementation of Frame Relay networks. The discussion covers the problems introduced by split horizon on Frame Relay networks and how Cisco uses subinterfaces to resolve this problem. Split Horizon The split horizon rule states that a router should not advertise a route out of an interface where the route was learned. For example, when RIP is the designated routing protocol on the network, the split horizon rule m..
Frame Relay Access Speeds and CIR
The maximum possible transmission speed on an access link largely depends on the Frame Relay network carrier's implementation and the type of transmission facility it uses and supports. Cisco devices can support Frame Relay at DS-3 access speeds of 45 Mbps. In most countries, Frame Relay network carriers or service providers offer Frame Relay services with a base CIR to their customers. In the context of a typical small-scale organization, a Frame Relay connection service wit..
