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Home > Archive > CCNP > December 2001 > Cisco FastEtherchannel
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Cisco FastEtherchannel
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| Gillie 2001-11-28, 7:42 am |
| Hi folks,
Does anybody have any experience of running FEC over multiple switches? They are 6509's, I've got a compaq server with 4 adapters spread over 2 switches for fault tolerance - is this possible?
Thanks. | |
| strikeattack 2001-11-28, 2:05 pm |
| If you wanted to run EtherChannel across two different switches, you would need to define two EtherChannel bundles, not just one as you are describing. | |
| sidodgers 2001-11-29, 3:29 pm |
| quote:
Originally posted by Gillie
Hi folks,
Does anybody have any experience of running FEC over multiple switches? They are 6509's, I've got a compaq server with 4 adapters spread over 2 switches for fault tolerance - is this possible?
Thanks.
Yeah, i'm not sure whether FEC bundles can span switches, i'd lay odds that they can't. That said, i've been working with 6509s here for the best part of three years and the only time i've ever seen one crash is when the idiot building maintainers decided to do a generator test one Sunday and the UPS ran out after two hours.
The other thing to consider is that you may be able to get away defining one FEC bundle to each 6509 and configure the compaq to only bring the second one up (with the same addresses) when the first one goes into a known bad state.
You're entering 'scary voodoo' territory here, let me know how you get on.
Sid  | |
| Gillie 2001-12-01, 11:37 am |
| Yup Sid, I'll let you know 
Then again, I might just use the one switch. It may be safer!! |
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