Svchost.exe High Disk Usage/Network Usage

Norton 360 alerted me with a high disk usage from svchost.exe. I've read that that is somewhat normal but no one mentions how there's so many actions performed with svchost.exe. Whenever I open up the File Insight of svchost.exe, there's hundreds of actions performed in the 'Activities' tab and when I go to network it always shows a lot of connections and stuff. Here's what it says:

 

Full Path: c:\windows\system32\svchost.exe
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Developers Microsoft Corporation
Version 6.1.7600.16385
Identified 8/17/2012 at 1:54:40 PM
Last Used 8/17/2012 at 2:24:30 PM
Startup Item No
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Reliable
With typical use this program crashes very infrequently.
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Many Users
Millions of users in the Norton Community have used this file.
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Mature
This file was released 3 years ago.
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Trusted
Norton has given this file a trusted rating.
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Source File:
svchost.exe
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Performance

Avg. Resource Usage:Low
Avg. CPU Usage:Low
Avg. Memory Usage:Low
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Performance Alert
Time: 8/17/2012 2:09:14 PM

Process ID 856
CPU Normal
Memory Normal
Handles Count Normal
Disk Read Activity 1,370 MB (total for this process).
Disk Write Activity 1,571 MB (total for this process).
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Network
ProtocolRemote ConnectionPort
UDP192.168.0.1DNS
UDP192.168.0.1DNS
UDP192.168.0.1DNS
UDP192.168.0.1DNS
UDP192.168.0.1DNS
UDP192.168.0.1DNS
UDP192.168.0.1DNS
UDP192.168.0.1DNS
UDP192.168.0.1DNS
UDP192.168.0.1DNS

 

Should I be worried?