02-16-2010 12:26 PM - edited 03-06-2019 09:44 AM
I am looking to purchase an industrial ethernet switch for a remote facility that does not have the proper environmental conditions for a commercial grade switch. In environmentally conditioned facilities I use a 3560G. Two of the SFP ports are used to create a 2G channel back to a 6500 in the MDF location. One of the Gig ports is configured as a 802.1q tunnel and the client connects their switch to that port.
Ideally I would like to have an IE switch with 3 Gig ports but Cisco doesn't seem to have one.
So, my question is this:
Can I configure one of the 100M ports as an 802.1q tunnel or is that capability limited to Gig ports?
Thanks for the assistance.
02-16-2010 12:31 PM
fkcollett wrote:
I am looking to purchase an industrial ethernet switch for a remote facility that does not have the proper environmental conditions for a commercial grade switch. In environmentally conditioned facilities I use a 3560G. Two of the SFP ports are used to create a 2G channel back to a 6500 in the MDF location. One of the Gig ports is configured as a 802.1q tunnel and the client connects their switch to that port.
Ideally I would like to have an IE switch with 3 Gig ports but Cisco doesn't seem to have one.
So, my question is this:
Can I configure one of the 100M ports as an 802.1q tunnel or is that capability limited to Gig ports?
Thanks for the assistance.
Frederick
Could you just clarify - do you mean 802.1q tunneling or do you just mean 802.1q trunk ? 802.1q trunks will run on fast ethernet ports.
Jon
02-16-2010 12:39 PM
I do mean 802.1q tunneling. We are using q in q tunneling across a MAN to keep private networks private.
02-16-2010 12:50 PM
fkcollett wrote:
I do mean 802.1q tunneling. We are using q in q tunneling across a MAN to keep private networks private.
Okay. The configuration guide makes no mention of a restriction in the speed of interface you can use. There are restrictions but speed is not one of them -
Jon
02-16-2010 02:08 PM
Yeah, I saw that.
What I've learned in 14 years with Cisco Equipment is that if it's not explicitly stated I need to question it.
I can't have my client purchase the equipment and have it not work.
I guess I'll throw it to TAC.
Thanks,
Fred Collett
CCIE 6383
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