I am glad you learnt that in a Lab. My experience with that was very painful, I
was upgrading a Datacenter and I tried to to connect the FE interface of 3745
to the fiber module on 6509. I could not figure it out during my change window
and I was blaming the wiring guy for wrong x-connect on the bix wall (A fluke
test was done, but I did not trust it). That's how I learnt I could not change
the speed on fiber SFP on 6509. No matter what, I will not try again on any
platform.
Question: I could not use etherchannel between 2 FE ports on 3745 and 6504. Is
that a hardware limitation on that platform (3745)? I tried it in my lab on
2811 and 3750 no problem, but for some reason I could not have my L3
etherchannel in an up/up state on 3745.
Patrice Ngassam
Ceritified Cisco CCNP, CCDP, CCIP
Date: Wed, 24 Mar 2010 14:10:55 -0400
From: [email protected]
To: [email protected]
CC: [email protected]
Subject: Re: [OSL | CCIE_RS] Vol1 Lab2 task 2.4
Yea, just labbed it up on my own 3750's and no dice on setting the speed for
the gig SFP port.
Sw1(config-if)#speed ?
nonegotiate Do not negotiate speed
Which leaves it freaking out about the speed mismatch:
17w2d: FEC: pagp_switch_agc_compatable: comparing GC values of Gi1/0/4 Fa1/0/47
flag = 1 1
17w2d: FEC: pagp_switch_port_attrib_diff: compare PAgP modes for Gi1/0/4
17w2d: FEC: pagp_switch_port_attrib_diff: Gi1/0/4 Fa1/0/47 same
17w2d: FEC: pagp_switch_agc_compatable: EC - attrib incompatable for Gi1/0/4;
speed of Gi1/0/4 is 1000M, Fa1/0/47 is 100M
17w2d: FEC: pagp_switch_choose_unique: Gi1/0/4, port Fa1/0/47 in agport Po12 is
incompatable
So where does that leave me for what this task requires? Disable the gig port?
Also, should we also be worried that Cisco can't spell 'incompatible' ?
On Wed, Mar 24, 2010 at 2:01 PM, Marko Milivojevic <[email protected]> wrote:
On Wed, Mar 24, 2010 at 17:58, FoosYou <[email protected]> wrote:
> I assumed you couldn't based on them needing to be the same speed and
> duplex. Also assumed that by speed they meant the hardware and not the
> 'speed' command. Guess I'll be seeing if those bundle together!
You assumed well. Now, I must state one thing here. The behavior
depending on the "speed" command is hardware-based. On 3560s, you
can't change speed of SFP GigE ports. On some platforms you can and on
those platforms, given everything else matches, you can bundle them in
EC.
[ We need to clarify this lab, though. Again, nice catch. ]
--
Marko Milivojevic - CCIE #18427
Senior Technical Instructor - IPexpert
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