[c-nsp] DNS Naming conventions for Switches

Andrew Miehs andrew at 2sheds.de
Thu Sep 2 12:27:23 EDT 2010


Hi all,

have spent the last couple of hours looking and haven't been able to find a
satisfactory solution to naming cisco siwtch interfaces.

I am currently looking after a lot of Cisco 6500s and would like to clean up
DNS so that reverse lookups = forward etc.

I would like to suggest that we do the following:

  lo1.switchname.domain.com
  gi1-1-1.switchname.domain.com
  po1.switchname.domain.com
  v1.switchname.domain.com
  te2-1-1.switchname.domain.com

  switchname.domain.com CNAME -> lo1.switchname.domain.com

lo1 (loopback 1) is the management IP address of the switch.

I have noticed however that some NMS solutions uses the reverse lookup of
the entered address (in this case 'switchname') for filling in the name in
the software.

Does anyone have any better suggestions, or should I just enter the
management interface into DNS without the 'lo1' and on the switches without
loopbacks?
I have the same issue with the 3750s - although there the management
interface is a vlan interface, and not a loopback.

Thanks for your comments,

Andrew


More information about the cisco-nsp mailing list