Hi, I am looking for uP with with two ethernet ports (MACs). I would prefer ARM base solution, but if there is anything else it might be also interesting. br, Jure --------------------------------------- This message was sent using the comp.arch.embedded web interface on http://www.EmbeddedRelated.com
uP with two ethernet ports (MACs)
Started by ●December 17, 2009
Reply by ●December 17, 20092009-12-17
jureciglic wrote:> Hi, > > I am looking for uP with with two ethernet ports (MACs). I would prefer ARM > base solution, but if there is anything else it might be also interesting. > > > br, > Jure >You haven't said anything about size or application. The AVR32 AP processors have two network ports, but you'll need external memory. An alternative to using two MACs could be to use a microcontroller with a single MAC and a managed switch chip set up with different VLANs on each port.
Reply by ●December 17, 20092009-12-17
On 2009-12-17, jureciglic <jure.ciglic@gmail.com> wrote:> I am looking for uP with with two ethernet ports (MACs). I > would prefer ARM base solution, but if there is anything else > it might be also interesting.Broadcom has some (IIRC they're pretty expensive -- $40+). Motorola also has a new family of Coldfire parts with two MACs. -- Grant Edwards grante Yow! He is the MELBA-BEING at ... the ANGEL CAKE visi.com ... XEROX him ... XEROX him --
Reply by ●December 17, 20092009-12-17
jureciglic wrote:> Hi, > > I am looking for uP with with two ethernet ports (MACs). I would > prefer ARM > base solution, but if there is anything else it might be also > interesting. > > > br, > Jure > > > > --------------------------------------- > This message was sent using the comp.arch.embedded web interface on > http://www.EmbeddedRelated.com >Freescale also has PowerPCs with dual MACs -- Scott Validated Software Lafayette, CO __________ Information from ESET NOD32 Antivirus, version of virus signature database 4696 (20091217) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
Reply by ●December 19, 20092009-12-19
On Dec 17, 6:53=A0pm, David Brown <da...@westcontrol.removethisbit.com> wrote:> jureciglic wrote: > > Hi, > > > I am looking for uP with with two ethernet ports (MACs). I would prefer=ARM> > base solution, but if there is anything else it might be also interesti=ng.> > > br, > > Jure > > You haven't said anything about size or application. =A0The AVR32 AP > processors have two network ports, but you'll need external memory. > > An alternative to using two MACs could be to use a microcontroller with > a single MAC and a managed switch chip set up with different VLANs on > each port.Interesting :-) I understand that a managed switch with VLANs allows you to run these different LANs on the same hardware, making the individual VLAN assignments configurable. Can you pls provide with a link or document that talks in detail about this alternate mechanism of using single MAC ? Thx in advans, Karthik Balaguru
Reply by ●December 20, 20092009-12-20
karthikbalaguru wrote:> On Dec 17, 6:53 pm, David Brown <da...@westcontrol.removethisbit.com> > wrote: >> jureciglic wrote: >>> Hi, >>> I am looking for uP with with two ethernet ports (MACs). I would prefer ARM >>> base solution, but if there is anything else it might be also interesting. >>> br, >>> Jure >> You haven't said anything about size or application. The AVR32 AP >> processors have two network ports, but you'll need external memory. >> >> An alternative to using two MACs could be to use a microcontroller with >> a single MAC and a managed switch chip set up with different VLANs on >> each port. > > Interesting :-) > I understand that a managed switch with VLANs allows you to run these > different LANs on the same hardware, making the individual VLAN > assignments configurable. > > Can you pls provide with a link or document that talks in detail about > this alternate mechanism of using single MAC ? >You should have no problems finding information about 802.1Q VLANs on google or wikipedia, and there is lots of information about it for using VLANs with Linux (I've used them on several Linux setups). However, I haven't used them with small micros at all, and I don't know what sort of support there is in existing RTOS's and networking stacks, or how much work it would take. I only know that it is a possible solution - the OP will have to do some research here.
