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RE: Interface name/ip status Changing?

To: nv-l@lists.tivoli.com
Subject: RE: Interface name/ip status Changing?
From: "Barr, Scott" <Scott_Barr@csgsystems.com>
Date: Thu, 18 Oct 2001 14:20:25 -0500
the "%" says this is a redundant (re: HSRP or similar) interface. 

-----Original Message-----
From: Scott Bursik [mailto:tivoliesm@hotmail.com]
Sent: Thursday, October 18, 2001 2:09 PM
To: nv-l@tkg.com
Subject: RE: [NV-L] Interface name/ip status Changing?



Very inreresting. So I should delete the nodes and add them to the seed file

with the % sign to fix this? What does the % indicate?

Scott


>From: "Tremblay, David A." <dtremblay@JHANCOCK.COM>
>Reply-To: IBM NetView Discussion <nv-l@tkg.com>
>To: "'IBM NetView Discussion'" <nv-l@tkg.com>
>Subject: RE: [NV-L] Interface name/ip status Changing?
>Date: Thu, 18 Oct 2001 14:55:57 -0400
>
>We experienced something similar a few months back,  it was related to a 
>few
>of our boxes (SUN) on our network that were setup in a cluster for failover
>purposes.    Each box contained a NICs configured with a duplicate IP
>address in case one box went down the other interface could be brought
>administratively up to take its place.   NetView would discover the first
>NIC on box A , add the interface then later on, box B would be polled, the
>interface was deleted from box A  and then added to box B.
>
>SOLUTION:
>
>We had to find out what boxes had the same IP in these failover
>configurations and then place both of the boxes in the seedfile with % in
>front of them.   This let NetView know of the duplicate IP addresses on
>these cards and took care of the problem.   Usually,  the % is used for 
>HSRP
>on routers but also works servers for this type of condition.
>
>NOTE:   We are running NetView 6.0.2 on Solaris and even had to get a efix
>that included a replacement netmon which fixed the problem.
>
>I hope this helps.
>
>Dave
>
>David A. Tremblay
>John Hancock Financial Services
>Lead Systems Analyst
>Boston, MA   02117
>
>E-Mail: dtremblay@jhancock.com
>
>
>
>
>
>       -----Original Message-----
>       From:   Barr, Scott [SMTP:Scott_Barr@csgsystems.com]
>       Sent:   Thursday, October 18, 2001 2:38 PM
>       To:     'IBM NetView Discussion'
>       Subject:        RE: [NV-L] Interface name/ip status Changing?
>
>       sorry I forgot part of the reply - when the first box is config
>polled it
>       will find another box has one of those non routable interfaces and
>delete it
>       from the second box. When the config poll runs on the second box, it
>will
>       delete the interface from the first box and so on.
>
>       -----Original Message-----
>       From: Barr, Scott [mailto:Scott_Barr@csgsystems.com]
>       Sent: Thursday, October 18, 2001 1:34 PM
>       To: 'IBM NetView Discussion'
>       Subject: RE: [NV-L] Interface name/ip status Changing?
>
>
>       The reason this usually happens is because there are duplicate IP
>addresses
>       on the non-routable networks. For instance, if you have an SP2
>complex, some
>       of the switch interfaces (internal) participate in a 1.1.1 or 2.2.2
>network.
>       If some other box in the network has a secondary interface with the
>same
>       address (again - a subnet not reachable by netview or else the
>machine would
>       report duplicate IP as soon as it was put on the network).
>
>       The only solution I know of is to re-ip the offender.
>
>       -----Original Message-----
>       From: Scott Bursik [mailto:tivoliesm@hotmail.com]
>       Sent: Thursday, October 18, 2001 1:29 PM
>       To: nv-l@tkg.com
>       Subject: RE: [NV-L] Interface name/ip status Changing?
>
>
>
>       The issue is, he will change back and forth throughout the day. The
>name
>       cahnges back to the original en3 name from the longer name. Its like
>it is
>       rediscivering the node several times a day with different interface
>names.
>       If I unmanage one of the non-pingable interfaces (we will call it
>en3) later
>
>       in the day it will become managed again and the name will be the
>en3;
>       Product: PCI Ethernet Adapter........ So NetView thinks its a new
>interface
>       and adds it and removes the other interface. Then later on it doesit
>again,
>       naming the interface back to en3 adn thus creating more interface
>traps and
>       changing the status of the node back to marginal. Hope this makes
>sense.
>
>       Scott
>
>
>       >From: "Barr, Scott" <Scott_Barr@csgsystems.com>
>       >Reply-To: IBM NetView Discussion <nv-l@tkg.com>
>       >To: "'IBM NetView Discussion'" <nv-l@tkg.com>
>       >Subject: RE: [NV-L] Interface name/ip status Changing?
>       >Date: Thu, 18 Oct 2001 12:56:02 -0500
>       >
>       >
>       >1003176713 1  Mon Oct 15 15:11:53 2001 pbsxd200009stby.pepsi.com N
>       >Interface
>       >
>       >css0 Added
>       >
>       >===> Discovery adds it
>       >
>       >1003176713 1  Mon Oct 15 15:11:53 2001 pbsxd200009stby.pepsi.com N
>       >Interface
>       >
>       >en0 Added
>       >
>       >===> Discovery adds it
>       >
>       >1003176714 3  Mon Oct 15 15:11:54 2001 pbsxd200009stby.pepsi.com N
>       >Interface
>       >
>       >css0 down.
>       >
>       >===> Unpingable interface - first status poll fails this interface
>       >
>       >1003176714 7  Mon Oct 15 15:11:54 2001 pbsxd200009stby.pepsi.com N
>Node
>       >marginal.
>       >
>       >===> Box is now marginal because one or more of its interfaces are
>down.
>       >
>       >1003176714 3  Mon Oct 15 15:11:54 2001 pbsxd200009stby.pepsi.com N
>       >Interface
>       >
>       >en0 down.
>       >
>       >===> Status poll fails to this interface as well - probably non
>pingable
>       >
>       >1003177212 7  Mon Oct 15 15:20:12 2001 pbsxd200009stby.pepsi.com n
>Demand
>       >polling on node pbsxd200009stby.pepsi.com.
>       >
>       >===> User initiates demand poll
>       >
>       >1003177227 4  Mon Oct 15 15:20:27 2001 pbsxd200009stby.pepsi.com N
>       >Interface
>       >
>       >Descriptor for en3 changed to "en3; Product: PCI Ethernet Adapter
>       >(23100020)
>       >
>       >   Manufacturer: not available! Part Number: 091H0397 FRU Number:
>091H0397
>       >".
>       >
>       >===> Demand poll finds the en3 interface (snmp get of interface
>table I
>       >assume)
>       >
>       >1003177227 4  Mon Oct 15 15:20:27 2001 pbsxd200009stby.pepsi.com N
>       >Interface
>       >
>       >Descriptor for en1 changed to "en1; Product: PCI Ethernet Adapter
>       >(23100020)
>       >
>       >
>       >===> Demand poll finds en1 inteface information (snmp get of
>interface
>       >table)
>       >
>       >1003177227 4  Mon Oct 15 15:20:27 2001 pbsxd200009stby.pepsi.com N
>       >Interface
>       >
>       >Descriptor for en0 changed to "en0; Product: PCI Ethernet Adapter
>       >(23100020)
>       >
>       >   Manufacturer: not available! Part Number: not available! FRU
>Number: not
>       >available! ".
>       >
>       >===> again en0 information obtained via the demand poll.
>       >
>       >I don't see anything wrong here? The only issue may be that the
>node will
>       >be
>       >degraded unless you unmanage the non-pingable interfaces OR you
>must use
>       >"$"
>       >in the seed file for this box so he uses SNMP status polls. I
>assume at
>       >least some of these interfaces are non-pingable.
>       >
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