nanog mailing list archives
Re: Vyatta as a BRAS
From: Nick Hilliard <nick () foobar org>
Date: Tue, 13 Jul 2010 20:05:21 +0100
On 13/07/2010 16:07, Curtis Maurand wrote:
On 7/13/2010 4:53 AM, Dobbins, Roland wrote:When a single botted/misbehaving host easily can take down a software-based BRAS, that's a pretty strong indication that software-based edge devices are contraindicated, heh. Software-based edge devices have been obsolete for a long time, now. They're a great risk to operators who've yet to replace them with hardware-based devices.They are all software based, no matter who builds them. Cisco IOS, Juniper JunOS, etc.
I think Roland's point was that on "hardware routers", there is a separation of function between the control and the forwarding planes, and that the forwarding plane is designed to be able to transmit data in an efficient parallel manner. I.e. on a well-designed hardware router, if you trash the data path on the router through ingress A and egress B, the damage stops there: the control plane is unaffected and ingress C to egress D is also ok (for arbitrary values of C and D). Depending on your configuration, this may or may not be important to your IP connectivity requirements. For many - if not most - companies, it is. Nick
Current thread:
- Re: Vyatta as a BRAS, (continued)
- Re: Vyatta as a BRAS Curtis Maurand (Jul 13)
- Re: Vyatta as a BRAS Greg Whynott (Jul 13)
- Re: Vyatta as a BRAS Daniel Senie (Jul 13)
- Re: Vyatta as a BRAS Lamar Owen (Jul 13)
- Re: Vyatta as a BRAS Christian Chapman (Jul 13)
- Re: Vyatta as a BRAS Valdis . Kletnieks (Jul 13)
- Re: Vyatta as a BRAS Lamar Owen (Jul 13)
- Re: Vyatta as a BRAS Mikael Abrahamsson (Jul 13)
- Re: Vyatta as a BRAS Dobbins, Roland (Jul 14)
- Re: Vyatta as a BRAS Curtis Maurand (Jul 13)
- Re: Vyatta as a BRAS Nick Hilliard (Jul 13)
- Re: Vyatta as a BRAS Tony Li (Jul 13)
- Re: Vyatta as a BRAS Dobbins, Roland (Jul 13)
- Re: Vyatta as a BRAS Dan White (Jul 13)
- Re: Vyatta as a BRAS Dobbins, Roland (Jul 13)
- Re: Vyatta as a BRAS Valdis . Kletnieks (Jul 14)
- Re: Vyatta as a BRAS Dobbins, Roland (Jul 14)
- Re: Vyatta as a BRAS Lamar Owen (Jul 14)
- Re: Vyatta as a BRAS sthaug (Jul 14)
- Re: Vyatta as a BRAS Dobbins, Roland (Jul 14)
- Re: Vyatta as a BRAS Per Carlson (Jul 14)