nanog mailing list archives
Re: The tale of a single MAC
From: "Randy McAnally" <rsm () fast-serv com>
Date: Sun, 2 Jan 2011 09:53:40 -0500
---------- Original Message ----------- From: Graham Wooden <graham () g-rock net>
Hi there, I encountered an interesting issue today and I found it so bizarre so I thought I would share it. I brought online a spare server to help offload some of the recent VMs that I have been deploying. Around the same time this new machine (we¹ll call it Server-B) came online, another machine which has been online for about a year now stopped responding to our monitoring (and we¹ll name this Server-A). I logged into the switch and saw that the machine that stopped responding was in the same VLAN as this newly deployed, and then quickly noticed that Server- A¹s MAC address was now on Server-B¹s switch port. ³What the ...² was my initial response.
Fresh OS install from scratch or did you load an image from an existing server? What make/model of on-board NICs? -- Randy M.
Current thread:
- Re: The tale of a single MAC, (continued)
- Re: The tale of a single MAC Kevin Oberman (Jan 03)
- Re: The tale of a single MAC Jethro R Binks (Jan 06)
- Re: The tale of a single MAC Graham Wooden (Jan 01)
- Re: The tale of a single MAC Dobbins, Roland (Jan 01)
- Re: The tale of a single MAC Graham Wooden (Jan 01)
- Re: The tale of a single MAC Adrian Chadd (Jan 01)
- Re: The tale of a single MAC Ian Henderson (Jan 01)
- Re: The tale of a single MAC Seth Mattinen (Jan 01)
- Re: The tale of a single MAC Graham Wooden (Jan 02)
- Re: The tale of a single MAC Eric Tow (Jan 02)
- Re: The tale of a single MAC Randy McAnally (Jan 02)
- Re: The tale of a single MAC Steven Bellovin (Jan 02)
- Re: The tale of a single MAC Franck Martin (Jan 02)
- Re: The tale of a single MAC Corey Quinn (Jan 02)
- Re: The tale of a single MAC Marshall Eubanks (Jan 02)
- Re: The tale of a single MAC Lynda (Jan 02)
- Re: The tale of a single MAC Dobbins, Roland (Jan 02)
- Re: The tale of a single MAC Mikael Abrahamsson (Jan 02)
- RE: The tale of a single MAC Daniel Dib (Jan 03)
- Re: The tale of a single MAC Corey Quinn (Jan 02)
- Re: The tale of a single MAC Jethro R Binks (Jan 06)