Migrating Token Ring to Ethernet
Many Token Ring users contemplate a migration from Token Ring to Ethernet. In some cases, the motivation is the available bandwidth of Fast Ethernet. Sometimes the motivation is to simplify cabling. But moving an infrastructure from Token Ring to Ethernet involves several considerations. For example, the media cabling type might differ. Many Token Ring systems utilize Category 3 cable (shielded twisted-pair), whereas Ethernet typically uses Category 5 cable (unshielded twiste..
Here are some useful commands for looking at the status of a dial backup link. For dial backup that uses the floating static or dialer watch type configurations, you can use the show dialer command: Router1#show dialer For dial configurations that use the backup interface configuration, you can use the show backup command: Router1#show backup And, for backup configurations that use ISDN, you can get some additional information from the show isdn status, show isdn active, ..
In this example, we will assume that we have a host device, acting as the sender, with IP address 192.168.100.202 and a second host, acting as the receiver, with IP address 192.168.9.100. The first host is connected to FastEthernet0/0 Router1: Router1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router1(config)#interface FastEthernet0/0 Router1(config-if)#ip address 192.168.100.21 255.255.255.0 Router1(config-if)#ip rsvp bandwidth 128..
There are several useful commands for checking the status of multicast configuration and protocols. You can see what multicast routes pass through a router with the EXEC command: Router#show ip mroute There are two useful variants of this command. The first reports on forwarding statistics for each multicast group: Router#show ip mroute count And the second reports only on the groups that are currently active: Router#show ip mroute active You can look at statistics on ..
You can modify the RIP metrics for a list of routes learned through a particular interface with the offset-list configuration command: Router2#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router2(config)#access-list 22 permit 192.168.20.0 Router2(config)#router rip Router2(config-router)#offset-list 22 in 5 Serial0.1 Router2(config-router)#exit Router2(config)#end Router2# A similar command changes the metrics for a list of routes as..
