North American Network Operators Group|
Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical
Re: Open Source BGP-router?
* email@example.com (Jim Shankland) [Thu 06 Dec 2001, 17:28 CET]: > Does anybody have any rough figures for what kind of load (both > bytes/s total throughput and packets/s) a more or less vanilla x86 > running a free OS can handle today? The last time I looked at this -- >From the FreeBSD commit logs of src/sys/i386/conf/NOTES (rev 1.961): | Add device driver support for the Broadcom BCM570x family of gigabit | ethernet controllers. This adds support for the 3Com 3c996-T, the | SysKonnect SK-9D21 and SK-9D41, and the built-in gigE NICs on | Dell PowerEdge 2550 servers. The latter configuration hauls ass: | preliminary measurements show TCP speeds of over 900Mbps using | only normal size frames. | | TCP/IP checksum offload, jumbo frames and VLAN tag insertion/stripping | are supported, as well as interrupt moderation. | | Still need to fix autonegotiation support for 1000baseSX NICs, but | beyond that, driver is pretty solid. > Hypothetically, a box that could handle, say, 750 Mb/s is not suitable > for "core" use, but it can certainly handle more than "a couple of > T1s." Depends on what your core looks like. Note that the above were TCP speeds, not packet forwarding speeds; I assume counts for the latter would be slightly higher. To save you some clicking, a PowerEdge 2550 is a 2U chassis with one of those adapters on-board connected to a 64-bit 66 MHz PCI bus, three free 64-bit 33 MHz PCI slots, dual Pentium III CPUs and oodles of ECC 133 MHz SDRAM with memory interleaving support. Oh, and please note that I am staying very far away from a discussion of PC vs. Cisco equipment quality and software reliability. :-) Regards, -- Niels.