Packet Buffer Size for HPE FlexFabric 5980 48SFP+ Switch

[wkong]

Hi, 

Does anyone know what is the supported packet buffer size for the switch HPE FlexFabric 5980 48SFP+?  The information is missing in the QuickSpecs of HPE FlexFabric 5980 Switch Series:

[Ivan_B]

Hi @wkong !

HPE FlexFabric 5980 48SFP+ 6QSFP28 Switch / JQ026A has deep buffer of 4GB size.

Hope this helps!

Edit: Just to add that the QuickSpecs mentions the packet buffer size correctly, but it's kind of misleading and many people think it is RAM. It is not. The RAM size in this model is 8 GB.

[-Alex-]

Hello  wkong,

Please check on the following link:

 https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=emr_na-a00037873en_us

Hope this helps!

[wkong]

Hi @Ivan_B,

Yes, it is misleading. May I know where you got the information of the 8 GB. RAM size? Do you have link of the document? I need it as prove to show to the customer.

Thank you!

[wkong]

Hi @-Alex- ,

Based on the HPE FlexFabric 5980 Switch Series - Overview, there is no figure after the packet buffer size. And I cannot find the 8GB RAM size as mentioned by @Ivan_B . Why the information of the switch is so confusing? 

[Ivan_B]

Unfortunately, this information is from internal document that I cannot share entirely, but I am sure if you contact your local HPE Sales department, they will provide you all the details about this product in a form suitable for end-Customers.

[-Alex-]

Hello wkong,

It is written on this link too under "Technical specifications": 

1 GB flash; Packet buffer size: , 4 GB SDRAM

https://h20195.www2.hpe.com/v2/gethtml.aspx?docname=a00029144enw

Which is the size of the  packet buffer size - 4 GB SDRAM

Hope this helps..

[Ivan_B · Accepted solution]

Hello @wkong !

Lucky you, I have just found a 5980 in our lab, here is an excerpt from the diagnostic output that confirms my statement about 8 GB RAM:

===============display version===============
HPE Comware Software, Version 7.1.070, Release 2710
Copyright (c) 2010-2018 Hewlett Packard Enterprise Development LP
HPE 5980 48SFP+ 6QSFP28 Switch uptime is 0 weeks, 0 days, 0 hours, 12 minutes
Last reboot reason : Cold reboot

Boot image: flash:/5980-CMW710-BOOT-R2710.bin
Boot image version: 7.1.070P2285, Release 2710
Compiled Jan 09 2018 11:00:00
System image: flash:/5980-CMW710-SYSTEM-R2710.bin
System image version: 7.1.070, Release 2710
Compiled Jan 09 2018 11:00:00

MPU(M) Slot 1:
Uptime is 0 weeks,0 days,0 hours,12 minutes
HPE 5980 48SFP+ 6QSFP28 Ext Table Swch MPU(M) with 1 XLP208 Processor
BOARD TYPE: 5980 48SFP+ 6QSFP28 Switch
DRAM: 8192M bytes
FLASH: 1024M bytes
NVRAM: 0K bytes
PCB 1 Version: VER.A
Bootrom Version: 210
CPLD 1 Version: 001
CPLD 2 Version: 003
CPLD 3 Version: 001
Release Version: HPE 5980 48SFP+ 6QSFP28 Ext Table Swch-2710
Patch Version: None
Reboot Cause: ColdReboot

==============================

So, summarizing - HPE 5980 48SFP+ 6QSFP28 has
- 8 GB RAM
- 4GB deep packet buffers.

[wkong]

@Ivan_B , u purposely turn on the switch to check the RAM size? Wow, really appreciate that!

I will get the information from the local team as well.

[wkong]

I don't think this is the answer. As @Ivan_B mentioned, the packet buffer size should be 4 GB, and the RAM size is 8 GB.