Forcing Ingress Multicast Replication Mode (Optional)
The MVPN feature supports only ingress multicast replication mode. If the switch is currently configured for egress replication, it is forced into ingress replication when the first MVRF is configured. This change in replication mode automatically purges all forwarding entries in the hardware, temporarily forcing the switch into software switching until the table entries can be rebuilt. To avoid disrupting customer traffic, we recommend verifying that the switch is already i..
Table 10-4 lists the LSA types and their descriptions for reference; following the table, each type is explained in more detail, in the context of a working network. Table 10-4 OSPF LSA Types Before diving into the coverage of LSA types, two more definitions are needed: ■ Transit network—A network over which two or more OSPF routers have become neighbors, so traffic can transit from one to the other. ■ Stub network—A subnet on which a router has not formed ..
Overriding the Defaults for Login Security
The console, vty, and aux (routers only) lines can override the use of the default login authentication methods. To do so, in line configuration mode, the login authentication name command is used to point to a named set of configuration methods. Example 21-6 shows a named group of configuration methods called for-console, for-vty, and for-aux, with each applied to the related login method. Each of the named groups defines a different set of authentication methods. Example 2..
In this example, Router4 will dial into Router1 by using an ISDN circuit: Router4#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router4(config)#username Router1 password 0 cisco Router4(config)#interface BRI0 Router4(config-if)#ip address 192.168.15.4 255.255.255.0 Router4(config-if)#encapsulation ppp Router4(config-if)#ip ospf demand-circuit Router4(config-if)#dialer map ip 192.168.15.1 broadcast 4165550000 Router4(config-if)#dialer-g..
The Cisco Family of Router and Switch Platforms for Frame Relay WAN Connectivity
In 1990, Cisco Systems released its first product to support Frame Relay technology. Presently, the feature-rich Cisco IOS software supports Frame Relay on almost every family of the router product line. Cisco has a very wide range of router products to meet different users' requirements. Each Cisco router family considered in Figure 2-9 has better performance, higher memory capacities, higher port densities, and faster interface speeds as you move up the chart. Each of these..
