nanog mailing list archives
Re: Nachi/Welchia Aftermath
From: "Rubens Kuhl Jr." <rubens () email com>
Date: Tue, 20 Jan 2004 23:15:56 -0200
Flow-based: Foundry with IronCore modules, Cisco Catalyst 6500 with
Sup1(A)
Prefix-based: Foundry with JetCore modules, Cisco Catalyst 6500/7600
with
Sup2(A), Sup3(A/BXL)Where do the Extreme and Juniper fit into this?
Private and public answers to my question indicate that both Summit 48i and Black Diamond from Extreme are flow-based; Juniper doesn't make layer 3 switches, but their routers also do prefix-based forwarding; Cisco routers also do prefix-based forwarding at usual configurations. Also of notice, flow-based forwarding is not the only thing that makes a L3 device suffer at worm attacks. If a directly connected interface is an Ethernet (or any other medium that is not point to point), ARPing for a lot of new addresses per second can also do harm. Rubens
----- Original Message ----- From: <haesu () towardex com> To: "Brent Van Dussen" <vandusb () attens com> Cc: "NANOG" <nanog () merit edu> Sent: Tuesday, January 20, 2004 9:46 PM Subject: Re: Nachi/Welchia Aftermathlesson learned: stop using /makeshift/ layer3 switches (without naming vendor) to run L3 core
Current thread:
- Re: Nachi/Welchia Aftermath, (continued)
- Re: Nachi/Welchia Aftermath Scott Weeks (Jan 20)
- Re: Nachi/Welchia Aftermath haesu (Jan 20)
- Re: Nachi/Welchia Aftermath Rubens Kuhl Jr. (Jan 20)
- Re: Nachi/Welchia Aftermath haesu (Jan 20)
- Re: Nachi/Welchia Aftermath Paul Vixie (Jan 20)
- Re: Nachi/Welchia Aftermath haesu (Jan 21)
- Re: Nachi/Welchia Aftermath Richard A Steenbergen (Jan 21)
- Re: Nachi/Welchia Aftermath Paul Vixie (Jan 21)
- Re: Nachi/Welchia Aftermath haesu (Jan 21)
- Re: Nachi/Welchia Aftermath Rubens Kuhl Jr. (Jan 20)
- Re: Nachi/Welchia Aftermath Donovan Hill (Jan 20)
- Re: Nachi/Welchia Aftermath Rubens Kuhl Jr. (Jan 20)
- Re: Nachi/Welchia Aftermath Stephen J. Wilcox (Jan 20)
- Re: Nachi/Welchia Aftermath Mikael Abrahamsson (Jan 21)
- Re: Nachi/Welchia Aftermath Donovan Hill (Jan 21)
- Re: Nachi/Welchia Aftermath Tom (UnitedLayer) (Jan 21)
- Re: Nachi/Welchia Aftermath Mikael Abrahamsson (Jan 21)
- Re: Nachi/Welchia Aftermath Richard A Steenbergen (Jan 20)
- Re: Nachi/Welchia Aftermath Tom (UnitedLayer) (Jan 20)
- Re: Nachi/Welchia Aftermath John Lyons (Jan 21)
- Re: Nachi/Welchia Aftermath Rafi Sadowsky (Jan 21)
- Re: Nachi/Welchia Aftermath sthaug (Jan 21)