nanog mailing list archives
Re: Vyatta as a BRAS
From: "Dobbins, Roland" <rdobbins () arbor net>
Date: Wed, 14 Jul 2010 07:24:49 +0000
On Jul 14, 2010, at 1:34 PM, Mikael Abrahamsson wrote:
CRS-1 uses multicore processors (hundreds of cores) for forwarding on their linecards, and they achieve 40+ Mpps per linecard.
The CRS-1 makes use of the Metro subsystem for forwarding, with multiple Metros per Modular Service Card (MSC). Each Metro complex (there are two per MSC) consists of the Metro chip itself, an NPU which contains 188 embedded RISC cores; two TCAM banks; SRAM; and FCRAM. There's also a gatekeeper ASIC of some sort on the MSC which handles traffic incoming from the fabric, as well as another interface module ASIC on the Physical Layer Interface Module (PLIM). I believe the CRS-3-specific MSCs each contain two QFAP complexes, which allow for 140gb/sec per linecard, and that there are various additional supporting ASICs on the MSCs and the PLIMs, as well. ----------------------------------------------------------------------- Roland Dobbins <rdobbins () arbor net> // <http://www.arbornetworks.com> Injustice is relatively easy to bear; what stings is justice. -- H.L. Mencken
Current thread:
- Re: Vyatta as a BRAS, (continued)
- Re: Vyatta as a BRAS khatfield (Jul 13)
- Re: Vyatta as a BRAS Dobbins, Roland (Jul 13)
- 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)