Network Instruments Observer - Manual (Page 14)

Getting Started with Observer Modes and Tools
8 Observer® Quick Start Manual
Router Observer
Routers are frequently bottlenecks in the network, so Observer allows you to
monitor a router in real-time to determine its utilization rate. With Router
Observer i t’s a straightforward matter to quickly determine whether or not
the router is acting as a bottleneck and, if so, whether the packets clogging the
router are incoming or outgoing (or both).
Figure 3: Router Observer
1. Click Statistics > Router Observer to open Router Observer.
2. Click Mode Commands > Setup or the icon on the Router Observer
toolbar, select your router from the list, and then enter its speed (the
speed you enter depends on your network configuration). Some sample
router/link speeds are shown below:
3. Click Mode Commands > Start Mode or the icon on the Router
Observer toolbar to start Router Observer.
Device/Link Speed
33.6K baud modem 33600
56K Frame relay or 56K baud modem 56000
One-channel ISDN connection 64000
T1 connection 1544000
4 Megabit Token Ring 4000000
10 Megabit Ethernet 10000000
16 Megabit Token Ring 16000000
100 Megabit (Fast) Ethernet 100000000
ATM 155 Megabit 155000000
Gigabit 1000000000