[32904] in North American Network Operators' Group
Re: Pinging routers for network status
daemon@ATHENA.MIT.EDU (Bill Woodcock)
Mon Dec 18 03:13:52 2000
Date: Mon, 18 Dec 2000 00:12:15 -0800 (PST)
From: Bill Woodcock <woody@zocalo.net>
To: Sean Donelan <sean@donelan.com>
Cc: nanog@merit.edu
In-Reply-To: <20001218045933.11170.cpmta@c004.sfo.cp.net>
Message-ID: <Pine.SOL.3.96.1001218000852.17652D-100000@secure>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Errors-To: owner-nanog-outgoing@merit.edu
On 17 Dec 2000, Sean Donelan wrote:
> Most network providers ping their routers for network status. Several
> providers even track RTT to detect changes. But very few customers
> connect to routers.
I'd disagree with this, at least from what I've observed of our
customers... I see a fairly steady stream of ICMP directed to the
loopback and tail-circuit interfaces of our core and tail-circuit routers
from customer address space, and if I were to guess, I'd say that 10%-15%
of our customers were using some sort of ICMP-based uptime-monitoring
packages which are looking at their Internet connection, among other
things. From talking with them, I think most of them are using them to
monitor WAN and VPN link uptime, and that they just throw our router into
the list as an afterthought.
-Bill
