Configuring OSPF with the Nonbroadcast OSPF Network Type
Configuring a router to support OSPF in a nonbroadcast environment with the NBMA OSPF network type involves two steps: identifying neighbors and picking an OSPF network type for the cloud. Because NBMA is the default OSPF network type, it is only necessary to identify neighbors. Remember that the DR and BDR need direct connectivity to the other routers. Pick candidates based on PVC attachments and use priorities to prevent poor candidates from being elected DR or BDR.&n..
FRTS supports a variety of queuing tools for managing packets it queues. The queuing tool is enabled via a command in the map class. Example 16-7 shows just such an example, with a new map class. The requirements implemented in this example are as follows: ■ Shape traffic on the two VCs (101 and 102) on s0/0 with the same settings for shaping. ■ Use LLQ only on the VC with DLCI 101. ■ Set Be to 0, and tune Tc to 10 ms. Note that the example does not show the configu..
Using Custom Queues with Priority Queues
You can split the queues so that some use Priority Queuing and the remainder Custom Queuing: Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#access-list 101 permit ip any any precedence 7 Router(config)#access-list 102 permit ip any any precedence 6 Router(config)#access-list 103 permit ip any any precedence 5 Router(config)#access-list 104 permit ip any any precedence 4 Router(config)#access-list 105 permit ip an..
Making HSRP React to Problems on Other Interfaces
The standby track configuration command reduces the priority of an active HSRP router into a standby mode when one of its interfaces becomes unavailable. If the priority drops far enough, another router will take over: Router1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router1(config)#interface FastEthernet0/1 Router1(config-if)#standby 1 ip 172.22.1.1 Router1(config-if)#standby 1 priority 120 Router1(config-if)#standby 1 pree..
To enable MD5-based EIGRP packet authentication, you must first define a key chain for the encryption, and then apply the authentication commands to the interface as follows: Router1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router1(config)#key chain ORA Router1(config-keychain)#key 1 Router1(config-keychain-key)#key-string oreilly Router1(config-keychain-key)#exit Router1(config-keychain)#exit Router1(config)#interface Ser..
