Re: [nv-l] nvsniffer / servmon
2003-10-31 15:26:00
I'm not the expert on this, partly because it is so new, and partly because I don't work with it. But I don't think the first version of servmon is as flexible as you might like it to be. According to my understanding, in the case of raw port tests, it appears that only the SNMP address is tested. The raw port test does not test all IP addresses on a node.
James Shanks
Level 3 Support for Tivoli NetView for UNIX and Windows
Tivoli Software / IBM Software Group
| "Barr, Scott" <Scott_Barr AT csgsystems DOT com>
Sent by: owner-nv-l-digest AT lists.us.ibm DOT com
10/30/2003 04:55 PM
Please respond to nv-l
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Subject: [nv-l] nvsniffer / servmon
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NetView v7.1.4 / Solaris 2.8
Greetings. There is a new enhancement / replacement for nvsniffer that I am having trouble getting to work. The concept is to detect whether a particular TCP port is accepting connections and report an event if it is not. It looks to me like servmon will now do this. nvsniffer as I recall will discover but not monitor port level applications.
The problem is this:
The servmon configuration requires that you specify what port the application runs on and what smartset contains the nodes that are considered "targets" for the servmon application.
I have a smartset created that has 3 Unix servers.
Each of the Unix servers has multiple instances of the software running on multiple different ports.
Each of the Unix servers is multi-homed (4 physical and 12 virtual addresses).
Each instance of the software is tied to a virtual address.
Each instance of the software uses one or more ports.
In my configuraiton, I specify I am interested on port 26001 (for instance).
Since the boxes are multi-homed, I don't think servmon can tell which interface/IP address to probe for port 26001 activitiy
The creation of the smarset means that the nodes listed are the right boxes, but not the right interfaces for activity on those ports.
SO my question is - is servmon smart enough to figure out the traffic is NOT on the interface that is resolved in DNS and thus located in my smartset? Since servmon actually adds a field in ovwdb (field name drivin by servmon.conf) I cannot specify an interface in the servmon config or the smartset - only a node name since it doesn't appear to add a field to an interface object, only to a node object.
Scott Barr
Distributed Network Engineer
CSG Systems Inc.
scott_barr AT csgsystems DOT com
Voice: 402-431-7939
Fax: 402-431-7413
#### Barr, Scott.vcf has been removed from this note on October 31, 2003 by James Shanks
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