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5003
May 9th, 2014 05:00
Can DD2500 onboard 10GbE interfaces connect at 1Gbs?
The 2 onboard 10GbE ports on a DD2500 can they negotiate at 1Gbs?
The client doesn’t have any 10GbE infrastructure and is not planning on deploying at the sites in question.
They would like to utilize these ports as 1 for the management and 1 for replication... using the 4*1Gbs onboard ports teamed on their backup VLAN.
Do you foresee any problem with this approach?
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PatrickBetts
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116 Posts
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May 9th, 2014 06:00
batemm,
Your DD2500 should negotiate down to 1GB. I would leave the DataDomain on "auto" and configure the switch port to 1GB. Please let us know your results.
Best Regards
Patrick
If a response in this thread accurately answers your question, please mark it as "Answered"
batemm
3 Posts
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May 9th, 2014 08:00
Thanks for the quick response Patrick.
Since posting a colleague refered me to the relevant section of the Admin guide .. RTFM :-)
There are a couple of applicable statements.
The first infers that the 10G Base-T hardware .. (which the DD2500 onboard 10G ports are) support 1Gbs...
– Speed options listed are limited to the capabilities of the hardware device.
Options are 10 Mb, 100 Mb, 1000 Mb (1 Gb), 10 Gb, and unknown. The 10G
Base-T hardware supports only the 100 Mb, 1000 Mb and 10 Gb settings.
The second states that 10G IO modules on the 2500 support only 10G.
– On DD2500, DD4200, DD4500, and DD7200 10GbE IO modules, copper
interfaces support only the 10 Gb speed setting.
I feel about 75% reassured a the moment. I just hope that the second statement doesn't mean 'any' 10 G interface on a DD2500.
M
aboy0110
4 Posts
1
May 11th, 2014 23:00
Here's an output of the 'net show hardware' command run on DD2500 with one 10G dual port PCI card installed.
# net show hardware
Port Speed Duplex Supp Speeds Hardware Address Physical Link Status
----- -------- ------- -------------- ----------------- -------- -----------
ethMa 1000Mb/s full 10/100/1000 d0:27:88:a4:f9:cb Copper yes
ethMb 1000Mb/s full 10/100/1000 d0:27:88:a4:f9:cc Copper yes
ethMc unknown unknown 10/100/1000 d0:27:88:a4:f9:cd Copper no
ethMd unknown unknown 10/100/1000 d0:27:88:a4:f9:ce Copper no
ethMe unknown unknown 100/1000/10000 d0:27:88:a4:f9:d0 Copper no
ethMf unknown unknown 100/1000/10000 d0:27:88:a4:f9:cf Copper no
eth0a unknown unknown 10000 00:60:16:5c:a2:48 Mixed no
eth0b unknown unknown 10000 00:60:16:5c:a2:49 Mixed no
----- -------- ------- -------------- ----------------- -------- -----------
As you can see the PCI Ethernet module supports 10G speeds only.
batemm
3 Posts
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May 12th, 2014 05:00
Many thanks.
That, along with a comment back from a local DD champion...
"you can but need to make sure the cables are Cat 6, 6a or 7. "
...gives me all the reassurance I need to plough ahead.
rgds
Mark