nanog mailing list archives
Re: IXP
From: Leo Bicknell <bicknell () ufp org>
Date: Fri, 24 Apr 2009 17:41:17 -0400
In a message written on Fri, Apr 24, 2009 at 04:22:49PM -0500, Paul Wall wrote:
On the twelfth day of Christmas, NYIIX gave to me, Twelve peers in half-duplex, Eleven OSPF hellos, Ten proxy ARPs, Nine CDP neighbors, Eight defaulting peers, Seven broadcast floods, Six maintenances notices, Five flapping sessions, Four Foundry crashes, Three routing leaks, Two forwarding loops, And a BPDU from someone's spanning tree.
Let's group: Problems that can/will occur with per-vlan peering: Twelve peers in half-duplex, Six maintenances notices, Five flapping sessions, Four Foundry crashes, Three routing leaks, Two forwarding loops, Problems that if they affect your equipment, you're configuring it wrong, and can/will occur with per-vlan peering: Eleven OSPF hellos, Nine CDP neighbors, Problems that if they affect the exchange, the exchange is configuring their equipment wrong, and can/will ocurr with per-vlan peering: Two forwarding loops, And a BPDU from someone's spanning tree. Problems unique to a shared layer 2 network: Eight defaulting peers, Seven broadcast floods, Leaving aside the particular exchanges, I'm going to guess you are not impressed by the technical tallent operating the exchange switches from the tone of your message. Do you believe making the configuration for the exchange operation 100 times more complex will: A) Lead to more mistakes and down time. B) Lead to less mistakes and down time. C) Have no effect? I'm going with A. I also think the downtime from A, will be an order of magnitude more down time than the result of defaulting peers (which, generally results in no down time, just theft of service), or broadcast floods. -- Leo Bicknell - bicknell () ufp org - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/
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Current thread:
- Re: IXP, (continued)
- Re: IXP Bill Woodcock (Apr 18)
- Re: IXP Paul Vixie (Apr 23)
- Re: IXP Leo Bicknell (Apr 23)
- Re: IXP Adrian Chadd (Apr 23)
- Re: IXP Jack Bates (Apr 23)
- Re: IXP Mike Leber (Apr 23)
- Re: IXP Stephen Stuart (Apr 24)
- Re: IXP Leo Bicknell (Apr 24)
- Re: IXP Nick Hilliard (Apr 24)
- Re: IXP Paul Wall (Apr 24)
- Re: IXP Leo Bicknell (Apr 24)
- Re: IXP Arnold Nipper (Apr 23)
- Re: IXP Jack Bates (Apr 18)
- Re: IXP Bill Woodcock (Apr 17)