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A question about the old 3Com 4800G (3CRS48G-24-91) Switch

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parnassus
Honored Contributor

A question about the old 3Com 4800G (3CRS48G-24-91) Switch

I need the valuable help (and memory) of a 3Com/H3C/HP Comware based switch historian...

I'm curious about the 3Com Switch 4800G 24 Ports (3CRS48G-24-91) model and, generally, about the entire historical 3Com 4800G Switch family (JD007A was declared EoS some years ago [***] and equivalent JD377A too during 2016): I noticed that that Hardware platform looks still supported through continuous and recent HPE software releases; to me the actual reference - specifically speaking about the 24 ports plus 4 SFP with 2 backplane Slots model - is the HPE A5500-24G EI (JD377A) which was previously also known as HP 4800-24G (JD007A).

Is the hardware platform used on the old 3Com 4800G (3CRS48G-24-91) the same - mainboard hardware engineering revisions apart - of JD007A and JD377A [*]?

If so, can an old 3Com 4800G (3CRS48G-24-91) unit - 3Com branded -  be (re)branded to HP and can it be updated to latest Comware 5.20 R2222P07 (August 2017) software as listed here for HPE A5500-24G EI [**]?

[*] Not to speak about the same family marketed and branded by H3C (Huawei 3Com era): the H3C S5500-EI Switch Series.

[**] Supported products:

  • JD007A HP 4800-24G SWITCH
  • JD008A HP 4800-24G-POE SWITCH
  • JD009A HP 4800-24G-SFP SWITCH
  • JD010A HP 4800-48G SWITCH
  • JD011A HP 4800-48G-POE SWITCH
  • JD373A HP 5500-24G DC EI SWITCH
  • JD374A HP 5500-24G-SFP EI SWITCH
  • JD375A HP 5500-48G EI SWITCH
  • JD376A HP 5500-48G-POE EI SWITCH
  • JD377A HP 5500-24G EI SWITCH
  • JD378A HP 5500-24G-POE EI SWITCH
  • JD379A HP 5500-24G-SFP DC EI SWITCH
  • JG240A HP 5500-48G-POE+ EI SWITCH W/2 INTF SLTS
  • JG241A HP 5500-24G-POE+ EI SWITCH W/2 INTF SLTS
  • JG249A HP 5500-24G-SFP EI TAA SWITCH W 2 SLTS
  • JG250A HP 5500-24G EI TAA SWITCH W 2 INTF SLTS
  • JG251A HP 5500-48G EI TAA SWITCH W 2 INTF SLTS
  • JG252A HP 5500-24G-POE+ EI TAA SWITCH W/2 SLTS
  • JG253A HP 5500-48G-POE+ EI TAA SWITCH W/2 SLTS

[***] especially considering the Switch family longevity permitted by almost continuous software releases (since about 2009, or probably earlier, up to 2017).

2 REPLIES
VoIP-Buddy
Trusted Contributor

Re: A question about the old 3Com 4800G (3CRS48G-24-91) Switch

Hi Parnassus!

Are you asking from the software standpoint?  As long as the model number you have is mentioned in the release notes you should be ok. 

A lot of the switches had lifetime support so we'll probably have software updates but hardware may be hard to get over time.

I'm not entirely sure what you are asking.

Regards,

David

parnassus
Honored Contributor

Re: A question about the old 3Com 4800G (3CRS48G-24-91) Switch

Hi VoIP-Buddy!

Thanks for answering.

I was asking from the pure Hardware standpoint: are internal motherboard and internal power supply basically the same considering each brand separately (3Com 4800G vs H3C S5500 vs HP A5500-EI)?

Basically I'm asking if 3Com/HP product related differences, if any, were only cosmetic (change in chassis Logo) or not...I'm just curious to understand if the HP SKU numbering changes (as example: from JD007A to JD377A) hides something more Hardware related or not.

I came to the conclusion that - I've found a lot of historical documentation about 3Com 4800G and HP A5500-EI and also a good old Community post that clear up my doubts a bit - they should be exactly the same physical Hardware (and Software development follows basically the same branch since 2008!).

I purchased few 3Com 4800G 24 ports (so 3Com branded) for Lab testing so in a few days I will have hands on them!