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тАО12-29-2009 04:50 AM
тАО12-29-2009 04:50 AM
Ethernet interconnect modules options
Can someone please give me the advantages and the desadvantages of the following:
Cisco 3020 Blade Switch module
HP 16 port 1GB Passthru module
Why should I prefer using one instead of the other ?
Best Regards,
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тАО12-29-2009 06:10 AM
тАО12-29-2009 06:10 AM
Re: Ethernet interconnect modules options
Best Regards,
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тАО12-29-2009 06:20 AM
тАО12-29-2009 06:20 AM
Re: Ethernet interconnect modules options
+ You can connect the entire enclosure to the network using just a few cables if your bandwidth requirements are modest, greatly simplifying cabling.
+ You can bring multiple trunked VLANs into the blade switch with one cable and assign them (either trunked or non-trunked) to individual blade NICs as necessary.
- The blade switch has only 8 external gigabit ports, somewhat limiting your network bandwidth out of the enclosure.
+ The blade switch can connect to existing 100M or even 10M network, if necessary.
- Your network admins must accept the fact that a switch is accessible to the enclosure administrator. An enclosure firmware update may require switch firmware update too, tying the maintenance schedules together. There may be security implications or a need to re-think some policy decisions.
---------------
HP 16 port 1GB Passthru module
- One cable for each NIC of each blade = a whole lot of cables behind the enclosure. Be sure you arrange and tie down your cables carefully so that they won't turn into an unmanageable nest of worms, and won't obstruct the cooling airflow.
- If you use trunked VLANs, you must configure the trunking within the OS of each blade separately.
+ You can get the absolute maximum total bandwidth out of the enclosure, because each NIC has its own independent cable connection (16x 1000M full-duplex).
- The passthru module is not 1000/100/10, but gigabit-ONLY. If you need to connect the enclosure to an older 100M network, you need an external gigabit-capable switch to act as a speed adapter.
+ In terms of security or administration policy, nothing new. If you have strict (security or other) requirements about keeping the system admin and network admin roles separate, this does it.
MK
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тАО01-04-2010 09:28 AM
тАО01-04-2010 09:28 AM
Re: Ethernet interconnect modules options
*) 1/10 VC Ethernet Module
*) ProCurve 6020
*) Flex-10 VC 10 Gbit Ethernet
*) GbE2c (assuming it is still on the price list)
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тАО01-04-2010 10:01 AM
тАО01-04-2010 10:01 AM
Re: Ethernet interconnect modules options
1/10 VC Ethernet Module
Flex-10 VC 10 Gbit Ethernet
GbE2c
?
Best Regards,
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тАО01-04-2010 10:26 AM
тАО01-04-2010 10:26 AM
Re: Ethernet interconnect modules options
The GbE2c is a basic Layer2 Gigabit swith with the ability to do Layer3 stuff as well
The ProCurve 6120 is a 10 Gbit/s capable switch, without the Virtual Connect or Flex10 bits.