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HP MSR GbE SIC on 3Com/H3C branded MSR routers

 
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lorn10
Advisor

HP MSR GbE SIC on 3Com/H3C branded MSR routers

Here follows a new tpoic

This thread discusses the compatibility of the more recent (Comware 7 oriented) HP MSR GbE SIC modules at the original (Comware 5 based) 3Com/H3C MSR Router series.

There are different newer HP MSR Gigabit Ethernet SIC available, - the most common are:

JG738A, HP MSR 1-port GbE Combo SIC Module
--> support for this module (labeled on PCB as RT-SIC-1GEC-V2) was officially added in firmware version R2513P11.
Warning, there exist different revisions of this SIC module with the same HP part number JG738A! I can confirm that modules with PCB label RT-U1S-1GEC are NOT working in a Comware 5 based MSR20-20 router. For more information see the second post with pictures.

JG739A, HP MSR 4-port Gig-T Switch SIC Module
--> no official support for this module in any Comware 5 MSR firmware mentioned (but may still working)

JG740A, HP MSR 4-port Gig-T PoE Switch SIC Module
--> no official support for this module in any Comware 5 MSR firmware mentioned

Source:
http://c242173.r73.cf3.rackcdn.com/HP-394407360-4AA1-7037ENW.pdf

There exists only rare information about the compatibility, - but according to some comments they should work also in the original 3Com/H3C branded MSR routers.

It seems that SIC modules beginning with JG in the product numbers are newer than those with JD. Furthermore the JG parts are more compliant, - for example the JD572A GbE Combo SIC module has some grave flaws in conjunction with the MSR1000, MSR2000 and MSR3000 router models. On these routers, the JD572A GbE Combo SIC module is falling back to 100Mbit operation or completely fails under heavy traffic/load.

Source:
https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c04501308

So out of this perspective it is recommended to look for the JG738A (or JG739A) instead of the JD572A, especially when the latter one is more costly…

It would be great if someone can explain more detailed the functionality of the JG738A and JG739A SIC module.

So far I understand, the JG738A is layer 3 (L3) based while the JG739A is layer 2 (L2). This has benefits, but contra wise also some negative points. While the JG738A is more flexible, for example in acting with DHCP, logical Ethernet subinterfaces & tagged VLAN, the JG739A is probably much faster.

Any additional information on this topic is welcome! ;-)

1 REPLY
lorn10
Advisor

Re: HP MSR GbE SIC on 3Com/H3C branded MSR routers

Here follows a small status update. As already described the HP SIC module JG738A (labeled on PCB as RT-SIC-1GEC-V2) is supported according to the MSR firmware release notes since firmware version R2513P11.

However, this compatibility is unfortunately not always the case. There exist newer revisions of that module with PCB RT-U1S-1GEC (RTU1S1GEC) which are NOT compatible to Comware 5 based MSR router models.

I can confirm this for an original Comware 5 based MSR20-20 router model running firmware R2516P13. The RT-U1S-1GEC module is not recognized in any SIC slot, not slot 1 and not slot 2.

Therefore it seems that JG738A modules labeled on PCB as RT-U1S-1GEC are only compatible to Comware 7. For more information see the pictures.

RTU1S1GEC.jpgRTU1S1GEC SIC module (HP JG738A)RTU1S1GECsicconnector.jpgRTU1S1GEC SIC module connector