In some cases, a routing policy may need to remove one string from the COMMUNITY PA, or even delete the entire COMMUNITY PA. This can be accomplished with a route map as well, using the set command. Removing the entire COMMUNITY is relatively simple: include the set community none command in a route-map clause, and all routes matched by that clause will have their COMMUNITY PA removed. For example, Example 13-11 lists a route-map react-tocomm route map on each router. In that..
Many public venues, such as airports, coffee shops, hotels, and convention centers, offer Wi-Fi access to the Internet. This form of network is often referred to as a public wireless LAN (PWLAN). PWLANs allow people who are away from their homes and offices to access e-mail, browse the Internet, and interface with corporate applications. The smaller public “hotspots” may only have a single access point connecting directly to an ISP. Larger implementations usually h..
Enhanced IGRP is an interior gateway routing protocol designed for various networks and media. Enhanced IGRP is an advanced distance-vector protocol. The underlying concepts are the same as those of distance-vector protocols, except that Enhanced IGRP is a non-periodic incremental protocol. This differs from traditional distance-vector protocols, in which complete routing updates are sent periodically, using unnecessary bandwidth and CPU resources. Improvements to Enhanced ..
Cisco Architecture for Voice, Video and Integrated Data (AVVID) also contains details on best practices for wireless networks. As wireless networks grow around the globe, Cisco intends to ensure that you can connect wherever you are, 24 hours a day, thereby boosting your connectivity to the workplace. This means, of course, that connectivity is required in areas where there are no cables, such as cafés, airplanes, street corners, and hotel lobbies. Wireless networks have be..
Configuring a Basic MPLS P Router
For the P routers in the core of the MPLS network, the primary requirement is to enable CEF and turn on MPLS on each of the interfaces that will be forwarding MPLS tagged packets. In this example, we have also enabled OSPF as a dynamic routing protocol within the MPLS core: Router-P1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router-P1(config)#ip cef Router-P1(config)#mpls ip Router-P1(config)#interface FastEthernet0/0 Router-P..
