ce [confirm] And on the other side as well: Bldg-B-Rtr#clear counters so/o Clear "show interface" counters on this interface [confirm] If you think you need a faster link, you will need to collect some real data to support your case. When you approach management with your concerns, having information similar to what I've shown you in this chapter will help justify the expense of more bandwidth. SNMP network monitoring is one of the most useful tools you can deploy on your network. You don't need fancy systems like Cisco Works or OpenView, though if you can afford those tools, they are worth having. Free tools such as the MRTG are very powerful and useful, especially for justifying larger links. Resolving the Problem CHAPTER 34 The Converged Network In this chapter, you'll see a converged network in action. While the network will be very simple, the principles shown will scale to networks and links of almost any size. Figure 34-1 shows the network we'll use for the examples in this chapter. R1 and R2 each have two Ethernet networks attached: one with an IP phone and one with a per- sonal computer. The routers are connected with a T1 that terminates into S0/1 on each. 10.1.1.1/24 10.3.3.3/24 192.168.1.0/24 10.2.2.2/24 10.4.4.4/24 Figure 34-1. Simple converged network Configuration The interface we'll be concentrating on is S0/1 on R1. Here is the configuration: interface Serial0/1 ip address 192.168.1.1 255.255.255.0 service-policy output WAN The service-policy statement maps the policy map named WAN to the interface. Here is the configuration for the policy map: policy-map WAN class Voice-RTP priority 128 class Voice-Control bandwidth percent 5 class HTTP bandwidth percent 10 class class-default fair-queue The policy map references four classes: Voice-RTP, Voice-Control, HTTP, and the special class class-default. Remember that class-default is a special class name used when you're building the default class. The default class is where packets not matching any other class are queued. The queues are designed as foll