GroupStudy.com GroupStudy.com - A virtual community of network engineers
 Home  BookStore  StudyNotes  Links  Archives  StudyRooms  HelpWanted  Discounts  Login
RE: OSPF - DNA? posted 07/24/2005
[Chronological Index] [Thread Index] [Top] [Date Prev][Date Next] [Thread Prev][Thread Next]


Hello,
For what I can see,

They mean Do Not Age, as in demand circuit, which is very similar to
virtual link if you think about it. (excepting only having to be to be
defined on both sides of the link). This saves the trouble of having to
forward over the virtual link every hello that occurs on OSPF. Are you
sure you didn't have at least a vlink with 160.10.32.1 up?

HTH

Gustavo   

-----Original Message-----
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
Schulz, Dave
Sent: domingo, 24 de Julho de 2005 19:32
To: ccielab@xxxxxxxxxxxxxx
Subject: OSPF - DNA?

I was working in the lab with virtual links and tunnels on OSPF areas.
I noticed at one point where I have the tunnel built, but did not have
connectivity to area 0 completed from a remote (non-0) area.  I did a
show ip ospf database and received the following:

Link ID         ADV Router      Age         Seq#       Checksum
44.44.44.17     160.10.32.1     9     (DNA) 0x80000001 0xD505
44.44.44.32     160.10.32.1     9     (DNA) 0x80000001 0xE4F5
44.44.44.48     160.10.32.1     9     (DNA) 0x80000001 0x4486
44.44.44.64     160.10.32.1     9     (DNA) 0x80000001 0xA317
44.44.44.128    160.10.32.1     9     (DNA) 0x80000001 0x2159
160.10.15.0     160.10.32.1     9     (DNA) 0x80000001 0xA1F5
160.10.15.0     160.10.37.2     14          0x80000003 0xF658
160.10.32.0     160.10.32.1     9     (DNA) 0x80000001 0xC07C
160.10.32.0     160.10.37.2     1759        0x80000003 0xED73

I have never seen the "(DNA)" entry in this output before.  I can't seem
to locate a reference to it in the doc CD.  Anyone has any ideas on what
this means?

Dave

_______________________________________________________________________
Subscription information may be found at: 
http://www.groupstudy.com/list/CCIELab.html